# NTSB LAX08PA259: Sikorsky S-61N, N612AZ, Weaverville, CA, August 6, 2008 - Type: NTSB accident investigation - Classification: Accident · Fatal · Class 1 · Final report - Date: August 5, 2008, 19:41 local (Aug 6, 2008, 02:41 UTC) - Place: Weaverville, CA - Coordinates: 40.914165, -123.252502 - Nearby events: https://openairdocs.org/map.md?lat=40.9142&lon=-123.2525&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Defining event: [Initial climb: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) - Highest injury: Fatal - Injuries: 9 fatal, 4 serious - Status: Completed, report January 25, 2011 - Report: Board-adopted at Board Meeting - Investigation class: Class 1 - Parties: Washington, D.C., AAI-100 - Safety recommendations: Yes - NTSB case key (mKey): 68616 - NTSB case page: https://www.ntsb.gov/investigations/Pages/LAX08PA259.aspx - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/68616/pdf - Board report AAR1006 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR1006.pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=68616 - Page: https://openairdocs.org/ntsb/LAX08PA259 ## Probable cause The following actions by Carson Helicopters: 1) the intentional understatement of the helicopter's empty weight, 2) the alteration of the power available chart to exaggerate the helicopter's lift capability, and 3) the practice of using unapproved above-minimum specification torque in performance calculations that, collectively, resulted in the pilots relying on performance calculations that significantly overestimated the helicopter's load-carrying capacity and did not provide an adequate performance margin for a successful takeoff; and insufficient oversight by the U.S. Forest Service and the Federal Aviation Administration. Contributing to the accident was the failure of the flight crewmembers to address the fact that the helicopter had approached its maximum performance capability on their two prior departures from the accident site because they were accustomed to operating at the limit of the helicopter’s performance. Contributing to the fatalities were the immediate, intense fire that resulted from the spillage of fuel upon impact from the fuel tanks that were not crash resistant, the separation from the floor of the cabin seats that were not crash resistant, and the use of an inappropriate release mechanism on the cabin seat restraints. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Loading](https://openairdocs.org/ntsb-findings/01011500): Aircraft › Aircraft handling/service · Related operating info (probable cause); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/01011500/cases.md?model=8142104), [All aircraft, 35 cases](https://openairdocs.org/ntsb-findings/01011500/cases.md) - [Aircraft capability](https://openairdocs.org/ntsb-findings/01061000): Aircraft › Aircraft oper/perf/capability · Related operating info (probable cause); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/01061000/cases.md?model=8142104), [All aircraft, 57 cases](https://openairdocs.org/ntsb-findings/01061000/cases.md) - [Culture: standard operating practices](https://openairdocs.org/ntsb-findings/04024015): Organizational issues › Management · Operator (probable cause); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/04024015/cases.md?model=8142104), [All aircraft, 10 cases](https://openairdocs.org/ntsb-findings/04024015/cases.md) - [Knowledge](https://openairdocs.org/ntsb-findings/02032000): Personnel issues › Experience/knowledge · Pilot (probable cause); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/02032000/cases.md?model=8142104), [All aircraft, 5 cases](https://openairdocs.org/ntsb-findings/02032000/cases.md) - [Oversight: oversight of operation](https://openairdocs.org/ntsb-findings/04032015): Organizational issues › Support/oversight/monitoring · FAA/Regulator (probable cause); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/04032015/cases.md?model=8142104), [All aircraft, 61 cases](https://openairdocs.org/ntsb-findings/04032015/cases.md) - [Oversight: oversight of operation](https://openairdocs.org/ntsb-findings/04032015): Organizational issues › Support/oversight/monitoring · Other government (probable cause); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/04032015/cases.md?model=8142104), [All aircraft, 61 cases](https://openairdocs.org/ntsb-findings/04032015/cases.md) - [Action: lack of action](https://openairdocs.org/ntsb-findings/02041030): Personnel issues › Action/decision · Flight crew (probable cause); cases with it: [Sikorsky S-61N, 2 cases](https://openairdocs.org/ntsb-findings/02041030/cases.md?model=8142104), [All aircraft, 792 cases](https://openairdocs.org/ntsb-findings/02041030/cases.md) - [Fuel system: fuel storage](https://openairdocs.org/ntsb-findings/01022810): Aircraft › Aircraft systems · Design (probable cause); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/01022810/cases.md?model=8142104), [All aircraft, 60 cases](https://openairdocs.org/ntsb-findings/01022810/cases.md) - [Equipment/furnishings: flight compartment equipment](https://openairdocs.org/ntsb-findings/01022510): Aircraft › Aircraft systems · Design (probable cause); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/01022510/cases.md?model=8142104), [All aircraft, 37 cases](https://openairdocs.org/ntsb-findings/01022510/cases.md) - [Fluids: fuel](https://openairdocs.org/ntsb-findings/01071010): Aircraft › Fluids/misc hardware · Fluid condition; cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/01071010/cases.md?model=8142104), [All aircraft, 1,695 cases](https://openairdocs.org/ntsb-findings/01071010/cases.md) - [Wind](https://openairdocs.org/ntsb-findings/03034000): Environmental issues › Conditions/weather/phenomena · Availability of related info; cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/03034000/cases.md?model=8142104), [All aircraft, 110 cases](https://openairdocs.org/ntsb-findings/03034000/cases.md) - [Indicating/recording systems: data recorders (flight/maint)](https://openairdocs.org/ntsb-findings/01023130): Aircraft › Aircraft systems · Not installed/available; cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-findings/01023130/cases.md?model=8142104), [All aircraft, 17 cases](https://openairdocs.org/ntsb-findings/01023130/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Prior to flight: Aircraft loading event](https://openairdocs.org/ntsb-events/010); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-events/010/sequence.md?model=8142104), [All aircraft, 84 cases](https://openairdocs.org/ntsb-events/010/sequence.md) - [Initial climb: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) (defining event); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-events/490/sequence.md?model=8142104), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) - [Post-impact: Fire/smoke (post-impact)](https://openairdocs.org/ntsb-events/170); cases with it: [Sikorsky S-61N, 1 case](https://openairdocs.org/ntsb-events/170/sequence.md?model=8142104), [All aircraft, 354 cases](https://openairdocs.org/ntsb-events/170/sequence.md) ## Analysis The Safety Board's full report is available at http://www.ntsb.gov/publictn/A_Acc1.htm. The Aircraft Accident Report number is NTSB/AAR-10-06. On August 5, 2008, about 1941 Pacific daylight time, a Sikorsky S-61N helicopter, N612AZ, impacted trees and terrain during the initial climb after takeoff from Helispot 44 (H-44), located at an elevation of about 6,000 feet in mountainous terrain near Weaverville, California. The pilot-in-command, the safety crewmember, and seven firefighters were fatally injured; the copilot and three firefighters were seriously injured. Impact forces and a postcrash fire destroyed the helicopter, which was being operated by the U.S. Forest Service (USFS) as a public flight to transport firefighters from H-44 to another helispot. The USFS had contracted with Carson Helicopters, Inc. (CHI) of Grants Pass, Oregon, for the services of the helicopter, which was registered to CHI and leased to Carson Helicopter Services, Inc. of Grants Pass. Visual meteorological conditions prevailed at the time of the accident, and a company visual flight rules flight plan had been filed. ## Factual narrative The Safety Board's full report is available at http://www.ntsb.gov/publictn/A_Acc1.htm. The Aircraft Accident Report number is NTSB/AAR-10-06. On August 5, 2008, about 1941 Pacific daylight time, a Sikorsky S-61N helicopter, N612AZ, impacted trees and terrain during the initial climb after takeoff from Helispot 44 (H-44), located at an elevation of about 6,000 feet in mountainous terrain near Weaverville, California. The pilot-in-command, the safety crewmember, and seven firefighters were fatally injured; the copilot and three firefighters were seriously injured. Impact forces and a postcrash fire destroyed the helicopter, which was being operated by the U.S. Forest Service (USFS) as a public flight to transport firefighters from H-44 to another helispot. The USFS had contracted with Carson Helicopters, Inc. (CHI) of Grants Pass, Oregon, for the services of the helicopter, which was registered to CHI and leased to Carson Helicopter Services, Inc. of Grants Pass. Visual meteorological conditions prevailed at the time of the accident, and a company visual flight rules flight plan had been filed. ## Aircraft - Registration: [N612AZ](https://openairdocs.org/deregistered/N612AZ-2017-05-23), registration cancelled 2017-05-23, S/N 61297, built 1965 (OpenAirDocs) - Reported make and model: SIKORSKY S-61N - Registry model: [Sikorsky S-61N](https://openairdocs.org/model/sikorsky-s-61n) (registry code 8142104) (OpenAirDocs) - Registry engine: [GE CT58-140-1](https://openairdocs.org/engine/ge-ct58-140-1) (registry code 30128, turbo-shaft) (OpenAirDocs) - Category: Helicopter - Engines: General Electric CT58-140 turbo shaft; General Electric CT58-140 turbo shaft - Damage: Destroyed - Fire: On-Ground - Flight: Public aircraft - federal, Public use - Operator: USDA Forest Service - Departed: NONE, Weaverville, CA - Destination: NONE - Flight plan: Company VFR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 54; injuries: fatal; commercial, airline transport; flight hours: 20,286 total, 8,166 in this make and model - Co-pilot; injuries: serious ## Weather - Conditions: Visual (VMC) - Wind: 150° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 91 °F, dew point 36 °F - Altimeter: 29.82 inHg - Observed at: RDD ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20080805857529A](https://openairdocs.org/incident/20080805857529A), Aug 5, 2008: Skrsky S61N, Redding, CA, Destroyed, 9 fatal. On August 5, 2008, at approximately 1940 pacific dayligt time, a Sikorsky S-61N helicopter, N612AZ, operated by carson helicopter servics inc., under contract… ## Docket (236 files) The files NTSB released with the investigation on September 16, 2009, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=68616. - Operations 2-operations group chairman's factual report (item 1, PDF, 72 pages, 4.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245254&FileExtension=pdf&FileName=Operations%202-Operations%20Group%20Chairman%27s%20Factual%20Report-Master.pdf - Operations group chairmani��s factual report-errata sheet (item 2, PDF, 2 pages): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245403&FileExtension=pdf&FileName=Operations%20Group%20Chairman%EF%BF%BDs%20Factual%20Report-Errata%20Sheet-Master.pdf - Operations 2-attachment 01_subpoena (item 3, PDF, 2 pages, 118 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244975&FileExtension=pdf&FileName=Operations%202-Attachment%2001_Subpoena-Rel.pdf - Operations 2-attachment 02_operating certificates (item 4, PDF, 4 pages, 185 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244978&FileExtension=pdf&FileName=Operations%202-Attachment%2002_Operating%20Certificates-Rel.pdf - Operations 2-attachment 03_load calculations performed by PIC (item 5, PDF, 4 pages, 249 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244981&FileExtension=pdf&FileName=Operations%202-Attachment%2003_Load%20Calculations%20Performed%20by%20PIC-Rel.pdf - Operations 2-attachment 04_ pilot's records (item 6, PDF, 53 pages, 3.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245235&FileExtension=pdf&FileName=Operations%202-Attachment%2004_Pilot%27s%20Records-Rel.pdf - Operations 2-attachment 05_pilots' duty hours (item 7, PDF, 2 pages, 232 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244985&FileExtension=pdf&FileName=Operations%202-Attachment%2005_Pilots%27%20Duty%20Hours-Master.pdf - Operations 2-attachment 06_copilot records (item 8, PDF, 33 pages, 2.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245238&FileExtension=pdf&FileName=Operations%202-Attachment%2006_Copilot%20Records-Rel.pdf - Operations 2-attachment 07_chsi training manual (item 9, PDF, 282 pages, 2.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244983&FileExtension=pdf&FileName=Operations%202-Attachment%2007_CHSI%20Training%20Manual-Master.pdf - Operations 2-attachment 08_aircraft contract daily diary OAS-137 (item 10, PDF, 4 pages, 279 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244987&FileExtension=pdf&FileName=Operations%202-Attachment%2008_Aircraft%20Contract%20Daily%20Diary%20OAS-137-Master.pdf - Operations 2-attachment 09_load calculation form (item 11, PDF, 5 pages, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244989&FileExtension=pdf&FileName=Operations%202-Attachment%2009_Load%20Calculation%20Form-Master.pdf - Operations 2-attachment 10_ihog chapter 7 helicopter load calculations and manifests (item 12, PDF, 9 pages, 2.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244991&FileExtension=pdf&FileName=Operations%202-Attachment%2010_IHOG%20Chapter%207%20Helicopter%20Load%20Calculations%20and%20Manifests-Master.pdf - Operations 2-attachment 11_ihog appendix a helicopter management forms and checklists (item 13, PDF, 36 pages, 345 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244993&FileExtension=pdf&FileName=Operations%202-Attachment%2011_IHOG%20Appendix%20A%20Helicopter%20Management%20Forms%20and%20Checklists-Master.pdf - Operations 2-attachment 12_chsi provided chart c 06-27-08 (item 14, PDF, 1 page, 129 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244995&FileExtension=pdf&FileName=Operations%202-Attachment%2012_CHSI%20Provided%20Chart%20C%2006-27-08-Master.pdf - Operations 2-attachment 13_original manifests (item 15, PDF, 9 pages, 517 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244998&FileExtension=pdf&FileName=Operations%202-Attachment%2013_Original%20Manifests-Rel.pdf - Operations 2-attachment 14_chc weight documentation charts a b and c (item 16, PDF, 21 pages, 2.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245001&FileExtension=pdf&FileName=Operations%202-Attachment%2014_CHC%20Weight%20Documentation%20Charts%20A%20B%20and%20C-Rel.pdf - Operations 2-attachment 15_chart a and c comparisons (item 17, PDF, 8 pages, 109 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245177&FileExtension=pdf&FileName=Operations%202-Attachment%2015_Chart%20A%20and%20C%20Comparisons-Master.pdf - Operations 2-attachment 16_calibration records (item 18, PDF, 1 page, 431 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245003&FileExtension=pdf&FileName=Operations%202-Attachment%2016_Calibration%20Records-Master.pdf - Operations 2-attachment 17_prior accident-incidents (item 19, PDF, 14 pages, 3.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245390&FileExtension=pdf&FileName=Operations%202-Attachment%2017_Prior%20Accident-Incidents-Master.pdf - Operations 2-attachment 18_chsi provided chart a and bs 8-11-07 and 01-04-08 (item 20, PDF, 12 pages, 2.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245005&FileExtension=pdf&FileName=Operations%202-Attachment%2018_CHSI%20Provided%20Chart%20A%20and%20Bs%208-11-07%20and%2001-04-08-Master.pdf - Operations 2-attachment 19_der provided weight documents 12-07 (item 21, PDF, 13 pages, 567 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245008&FileExtension=pdf&FileName=Operations%202-Attachment%2019_DER%20Provided%20Weight%20Documents%2012-07-Rel.pdf - Operations 2-attachment 20_weight from airworthiness conformity inspection 08-06-07 (item 22, PDF, 1 page, 358 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245010&FileExtension=pdf&FileName=Operations%202-Attachment%2020_Weight%20from%20Airworthiness%20Conformity%20Inspection%2008-06-07-Master.pdf - Operations 2-attachment 21_weight for test flight from subpoena (item 23, PDF, 1 page, 60 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245012&FileExtension=pdf&FileName=Operations%202-Attachment%2021_Weight%20for%20Test%20Flight%20from%20Subpoena-Master.pdf - Operations 2-attachment 22_chart b from subpoena 12-26-07 (item 24, PDF, 1 page, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245015&FileExtension=pdf&FileName=Operations%202-Attachment%2022_Chart%20B%20from%20Subpoena%2012-26-07-Rel.pdf - Operations 2-attachment 23_chart a from subpoena 08-11-07 01-04-08 and 03-25-08 (item 25, PDF, 12 pages, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245018&FileExtension=pdf&FileName=Operations%202-Attachment%2023_Chart%20A%20from%20Subpoena%2008-11-07%2001-04-08%20and%2003-25-08-Rel.pdf - Operations 2-attachment 24_chart b from subpoena 01-04-08 (item 26, PDF, 1 page, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245021&FileExtension=pdf&FileName=Operations%202-Attachment%2024_Chart%20B%20from%20Subpoena%2001-04-08-Rel.pdf - Operations 2-attachment 25_chart c from subpoena 03-25-08 (item 27, PDF, 1 page, 99 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245023&FileExtension=pdf&FileName=Operations%202-Attachment%2025_Chart%20C%20from%20Subpoena%2003-25-08-Master.pdf - Operations 2-attachment 26_subpoenaed email from chi to chsi confirming weights 03-28-08 (item 28, PDF, 1 page, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245026&FileExtension=pdf&FileName=Operations%202-Attachment%2026_Subpoenaed%20Email%20from%20CHI%20to%20CHSI%20Confirming%20Weights%2003-28-08-Rel.pdf - Operations 2-attachment 27_subpoenaed email from chsi to chi confirming weights 05-05-08 (item 29, PDF, 2 pages, 108 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245029&FileExtension=pdf&FileName=Operations%202-Attachment%2027_Subpoenaed%20Email%20from%20CHSI%20to%20CHI%20Confirming%20Weights%2005-05-08-Rel.pdf - Operations 2-attachment 28_chsi fleet chart bs submitted to usfs for 2007 bids (item 30, PDF, 12 pages, 694 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245032&FileExtension=pdf&FileName=Operations%202-Attachment%2028_CHSI%20Fleet%20Chart%20Bs%20Submitted%20to%20USFS%20for%202007%20Bids-Rel.pdf - Operations 2-attachment 29_chsi fleet chart bs submitted to usfs for 2008 bids (item 31, PDF, 11 pages, 571 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245035&FileExtension=pdf&FileName=Operations%202-Attachment%2029_CHSI%20Fleet%20Chart%20Bs%20Submitted%20to%20USFS%20for%202008%20Bids-Rel.pdf - Operations 2-attachment 30_chsi fleet weights and performance submitted to usfs for 2008 bids (item 32, PDF, 1 page, 51 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245037&FileExtension=pdf&FileName=Operations%202-Attachment%2030_CHSI%20Fleet%20Weights%20and%20Performance%20Submitted%20to%20USFS%20for%202008%20Bids-Master.pdf - Operations 2-attachment 31_bid submitted to usfs (item 33, PDF, 6 pages, 385 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245040&FileExtension=pdf&FileName=Operations%202-Attachment%2031_Bid%20Submitted%20to%20USFS-Rel.pdf - Operations 2-attachment 32_roc scale repair-calibration station (item 34, PDF, 1 page, 69 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245043&FileExtension=pdf&FileName=Operations%202-Attachment%2032_ROC%20Scale%20Repair-Calibration%20Station-Rel.pdf - Operations 2-attachment 33_load calculation form instructions (item 35, PDF, 2 pages, 196 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245045&FileExtension=pdf&FileName=Operations%202-Attachment%2033_Load%20Calculation%20Form%20Instructions-Master.pdf - Operations 2-attachment 34_ Sikorsky's communications with FAA regarding 25 minute power available chart (item 36, PDF, 6 pages, 222 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245257&FileExtension=pdf&FileName=Operations%202-Attachment%2034_Sikorsky%27s%20Communications%20with%20FAA%20regarding%2025%20Minute%20Power%20Available%20Chart-Rel.pdf - Operations 2-attachment 35_usfs power check form from ihog (item 37, PDF, 5 pages, 578 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245047&FileExtension=pdf&FileName=Operations%202-Attachment%2035_USFS%20Power%20Check%20Form%20From%20IHOG-Master.pdf - Operations 2-attachment 36_power checks performed by pilots of ht 766 (item 38, PDF, 4 pages, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245049&FileExtension=pdf&FileName=Operations%202-Attachment%2036_Power%20Checks%20Performed%20by%20Pilots%20of%20HT%20766-Master.pdf - Operations 2-attachment 37_chsi provided supplement 5 figure 1 (item 39, PDF, 1 page, 156 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245051&FileExtension=pdf&FileName=Operations%202-Attachment%2037_CHSI%20Provided%20Supplement%205%20Figure%201-Master.pdf - Operations 2-attachment 38_FAA provided supplement 5 (item 40, PDF, 8 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245334&FileExtension=pdf&FileName=Operations%202-Attachment%2038_FAA%20Provided%20Supplement%205-Rel.pdf - Operations 2-attachment 39_supplement 7 (item 41, PDF, 18 pages, 2.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245165&FileExtension=pdf&FileName=Operations%202-Attachment%2039_Supplement%207-Rel.pdf - Operations 2-attachment 40_chsi provided supplement 8 (item 42, PDF, 42 pages, 13.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245054&FileExtension=pdf&FileName=Operations%202-Attachment%2040_CHSI%20Provided%20Supplement%208-Rel.pdf - Operations 2-attachment 41_FAA provided supplement 8 (item 43, PDF, 19 pages, 2.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245146&FileExtension=pdf&FileName=Operations%202-Attachment%2041_FAA%20Provided%20Supplement%208-Rel.pdf - Operations 2-attachment 42_FAA provided supplement 9 (item 44, PDF, 19 pages, 2.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245057&FileExtension=pdf&FileName=Operations%202-Attachment%2042_FAA%20Provided%20Supplement%209-Rel.pdf - Operations 2-attachment 43_supplement excerpts charts provided to pilots at helibase in-football- (item 45, PDF, 11 pages, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245059&FileExtension=pdf&FileName=Operations%202-Attachment%2043_Supplement%20Excerpts%20Charts%20Provided%20to%20Pilots%20at%20Helibase%20in-football-Master.pdf - Operations 2-attachment 44_email from chsi chief pilot instructing pilots to change charts supplement 8 and 9 (item 46, PDF, 13 pages, 9.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245062&FileExtension=pdf&FileName=Operations%202-Attachment%2044_Email%20from%20CHSI%20Chief%20Pilot%20Instructing%20Pilots%20to%20Change%20Charts%20Supplement%208%20and%209-Rel.pdf - Operations 2-attachment 45_comparison of performance charts provided by chsi and FAA (item 47, PDF, 49 pages, 26.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245064&FileExtension=pdf&FileName=Operations%202-Attachment%2045_Comparison%20of%20Performance%20Charts%20provided%20by%20CHSI%20and%20FAA-Master.pdf - Operations 2-attachment 46_performance calculations on charts provided by chsi and FAA (item 48, PDF, 9 pages, 11.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245066&FileExtension=pdf&FileName=Operations%202-Attachment%2046_Performance%20Calculations%20on%20Charts%20Provided%20by%20CHSI%20and%20FAA-Master.pdf - Operations 2-attachment 47_height-velocity diagram (item 49, PDF, 1 page, 861 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245171&FileExtension=pdf&FileName=Operations%202-Attachment%2047_Height-Velocity%20Diagram-Rel.pdf - Operations 2-attachment 48_chsi charts submitted to usfs for 2008 bid (item 50, PDF, 15 pages, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245069&FileExtension=pdf&FileName=Operations%202-Attachment%2048_CHSI%20Charts%20Submitted%20to%20USFS%20for%202008%20Bid-Rel.pdf - Operations 2-attachment 49_liquid tank installation STC (item 51, PDF, 2 pages, 318 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245072&FileExtension=pdf&FileName=Operations%202-Attachment%2049_Liquid%20Tank%20Installation%20STC-Rel.pdf - Operations 2-attachment 50_hoist installation STC (item 52, PDF, 2 pages, 320 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245075&FileExtension=pdf&FileName=Operations%202-Attachment%2050_Hoist%20Installation%20STC-Rel.pdf - Operations 2-attachment 51_composite main rotor blade component cards installed 08-14-07 (item 53, PDF, 3 pages, 252 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245077&FileExtension=pdf&FileName=Operations%202-Attachment%2051_Composite%20Main%20Rotor%20Blade%20Component%20Cards%20installed%2008-14-07-Master.pdf - Operations 2-attachment 52_liquid tank component card installed 03-25-08 (item 54, PDF, 1 page, 55 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245080&FileExtension=pdf&FileName=Operations%202-Attachment%2052_Liquid%20Tank%20Component%20Card%20installed%2003-25-08-Rel.pdf - Operations 2-attachment 53_ag air component card installed 12-26-07 (item 55, PDF, 1 page, 63 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245083&FileExtension=pdf&FileName=Operations%202-Attachment%2053_Ag%20Air%20Component%20Card%20installed%2012-26-07-Rel.pdf - Operations 2-attachment 54_ht 766 helicopter activity report (item 56, PDF, 4 pages, 202 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245180&FileExtension=pdf&FileName=Operations%202-Attachment%2054_HT%20766%20Helicopter%20Activity%20Report-Rel.pdf - Operations 2-attachment 55_usfs inspector evaluation of ht 766 (item 57, PDF, 1 page, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245086&FileExtension=pdf&FileName=Operations%202-Attachment%2055_USFS%20Inspector%20Evaluation%20of%20HT%20766-Rel.pdf - Operations 2-attachment 56_ht 766 registration (item 58, PDF, 1 page, 35 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245088&FileExtension=pdf&FileName=Operations%202-Attachment%2056_HT%20766%20Registration-Master.pdf - Operations 2-attachment 57_chsi organization chart (item 59, PDF, 1 page, 36 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245090&FileExtension=pdf&FileName=Operations%202-Attachment%2057_CHSI%20Organization%20Chart-Master.pdf - Operations 2-attachment 58_subpoenaed email stating chi pays for chsi employees (item 60, PDF, 1 page, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245093&FileExtension=pdf&FileName=Operations%202-Attachment%2058_Subpoenaed%20Email%20Stating%20CHI%20Pays%20for%20CHSI%20Employees-Rel.pdf - Operations 2-attachment 59_liquid tank specifications (item 61, PDF, 2 pages, 76 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245095&FileExtension=pdf&FileName=Operations%202-Attachment%2059_Liquid%20Tank%20Specifications-Master.pdf - Operations 2-attachment 60_Sikorsky provided S-61 ground effect diagram (item 62, PDF, 1 page, 10 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245097&FileExtension=pdf&FileName=Operations%202-Attachment%2060_Sikorsky%20Provided%20S-61%20Ground%20Effect%20Diagram-Master.pdf - Operations 2-attachment 61_seat weights (item 63, PDF, 2 pages, 61 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245129&FileExtension=pdf&FileName=Operations%202-Attachment%2061_Seat%20Weights-Rel.pdf - Operations 2-attachment 62_maintenance review of ht 766 weight specific (item 64, PDF, 2 pages, 73 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245099&FileExtension=pdf&FileName=Operations%202-Attachment%2062_Maintenance%20Review%20of%20HT%20766%20Weight%20Specific-Master.pdf - Operations 2-attachment 63_chsi provided letter from the usfs regarding use of minimum engine specification (item 65, PDF, 1 page, 62 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245101&FileExtension=pdf&FileName=Operations%202-Attachment%2063_CHSI%20Provided%20Letter%20from%20the%20USFS%20Regarding%20Use%20of%20Minimum%20Engine%20Specification-Master.pdf - Operations 2-attachment 64_iron complex fire information helibase locations (item 66, PDF, 2 pages, 987 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245103&FileExtension=pdf&FileName=Operations%202-Attachment%2064_Iron%20Complex%20Fire%20Information%20Helibase%20Locations-Master.pdf - Operations 2-attachment 65_maps in relation to H-44 accident site (item 67, PDF, 4 pages, 714 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245105&FileExtension=pdf&FileName=Operations%202-Attachment%2065_Maps%20in%20Relation%20to%20H-44%20Accident%20Site-Master.pdf - Operations 2-attachment 66_trinity helibase information (item 68, PDF, 3 pages, 122 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245107&FileExtension=pdf&FileName=Operations%202-Attachment%2066_Trinity%20Helibase%20Information-Master.pdf - Operations 2-attachment 67_accident maps and diagrams (item 69, PDF, 11 pages, 2.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245143&FileExtension=pdf&FileName=Operations%202-Attachment%2067_Accident%20Maps%20and%20Diagrams-Master.pdf - Operations 2-attachment 68_weather (item 70, PDF, 2 pages, 54 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245110&FileExtension=pdf&FileName=Operations%202-Attachment%2068_Weather-Rel.pdf - Operations 2-attachment 69_weight and balance of ht 766 (item 71, PDF, 2 pages, 70 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245366&FileExtension=pdf&FileName=Operations%202-Attachment%2069_Weight%20and%20Balance%20of%20HT%20766-Master.pdf - Operations 2-attachment 70_mission profile of departures (item 72, PDF, 1 page, 52 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245401&FileExtension=pdf&FileName=Operations%202-Attachment%2070_Mission%20Profile%20of%20Departures-Master.pdf - Operations 2-attachment 71_weighing field notes (item 73, PDF, 5 pages, 20 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245112&FileExtension=pdf&FileName=Operations%202-Attachment%2071_Weighing%20Field%20Notes-Master.pdf - Operations 2-attachment 72_witness interviews (item 74, PDF, 43 pages, 532 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245115&FileExtension=pdf&FileName=Operations%202-Attachment%2072_Witness%20Interviews-Rel.pdf - Operations 2-attachment 73_witness positions (item 75, PDF, 1 page, 245 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245117&FileExtension=pdf&FileName=Operations%202-Attachment%2073_Witness%20Positions-Master.pdf - Operations 2-attachment 74_other pertinent interviews (item 76, PDF, 18 pages, 186 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245194&FileExtension=pdf&FileName=Operations%202-Attachment%2074_Other%20Pertinent%20Interviews-Rel.pdf - Operations 2-attachmnet 75_miscellaneous interviews (item 77, PDF, 101 pages, 1.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245132&FileExtension=pdf&FileName=Operations%202-Attachmnet%2075_Miscellaneous%20Interviews-Rel.pdf - Operations 2-attachment 76_copilot interview (item 78, PDF, 52 pages, 145 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245120&FileExtension=pdf&FileName=Operations%202-Attachment%2076_Copilot%20Interview-Rel.pdf - Operations 2-attachment 77_pilot-operator aircraft accident report NTSB form 61201 (item 79, PDF, 9 pages, 690 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245123&FileExtension=pdf&FileName=Operations%202-Attachment%2077_Pilot-Operator%20Aircraft%20Accident%20Report%20NTSB%20Form%2061201-Rel.pdf - Operations 2-attachment 78_pilot-operator aircraft accident report NTSB form 61201 usfs (item 80, PDF, 9 pages, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245141&FileExtension=pdf&FileName=Operations%202-Attachment%2078_Pilot-Operator%20Aircraft%20Accident%20Report%20NTSB%20Form%2061201%20USFS-Rel.pdf - Operations 2-attachment 79_statement of party representatives to NTSB investigation (item 81, PDF, 2 pages, 75 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245126&FileExtension=pdf&FileName=Operations%202-Attachment%2079_Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation-Rel.pdf - Operations 2-attachment 79A_statement of party representatives to NTSB investigation (item 82, PDF, 1 page, 33 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245288&FileExtension=pdf&FileName=Operations%202-Attachment%2079A_Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation-Rel.pdf - Operations 2-attachment 80_weight testing ogden ut (item 83, PDF, 51 pages, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245243&FileExtension=pdf&FileName=Operations%202-Attachment%2080_Weight%20Testing%20Ogden%20UT-Rel.pdf - Operations 2-attachment 81_pertinent list of FAA inspections-actions (item 84, PDF, 3 pages, 14 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245148&FileExtension=pdf&FileName=Operations%202-Attachment%2081_Pertinent%20List%20of%20FAA%20Inspections-Actions-Master.pdf - Operations 2-attachment 82_contract AG-024B-C-08-9354 passenger transport (item 85, PDF, 1 page, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245285&FileExtension=pdf&FileName=Operations%202-Attachment%2082_Contract%20AG-024B-C-08-9354%20Passenger%20Transport-Rel.pdf - Operations 2-attachment 83_modification to contract-AG-024B-C-08_9340 (item 86, PDF, 3 pages, 307 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245197&FileExtension=pdf&FileName=Operations%202-Attachment%2083_Modification%20to%20Contract-AG-024B-C-08_9340-Rel.pdf - Operations 2-attachment 84_miscellaneous interviews 2 added (item 87, PDF, 7 pages, 96 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245393&FileExtension=pdf&FileName=Operations%202-Attachment%2084_Miscellaneous%20Interviews%202%20added-Rel.pdf - Operations 2-attachment 85_chart b dart provided 08-06-07 (item 88, PDF, 1 page, 45 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245151&FileExtension=pdf&FileName=Operations%202-Attachment%2085_Chart%20B%20DART%20Provided%2008-06-07-Rel.pdf - Operations 2-attachment 86_chart cs from fleet (item 89, PDF, 10 pages, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245153&FileExtension=pdf&FileName=Operations%202-Attachment%2086_Chart%20Cs%20from%20Fleet-Master.pdf - Operations 2-attachment 87_personnel at H-44 (item 90, PDF, 2 pages, 71 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245155&FileExtension=pdf&FileName=Operations%202-Attachment%2087_Personnel%20at%20H-44-Master.pdf - Operations 2-attachment 88_lease agreement between chi and chsi (item 91, PDF, 15 pages, 3.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245168&FileExtension=pdf&FileName=Operations%202-Attachment%2088_Lease%20Agreement%20between%20CHI%20and%20CHSI-Rel.pdf - Operations 2-attachment 89_human performance interviews (item 92, PDF, 12 pages, 93 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245157&FileExtension=pdf&FileName=Operations%202-Attachment%2089_Human%20Performance%20Interviews-Master.pdf - Operations 2-attachment 90_weight build-up to accident configuration (item 93, PDF, 7 pages, 106 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245175&FileExtension=pdf&FileName=Operations%202-Attachment%2090_Weight%20Build-Up%20to%20Accident%20Configuration-Master.pdf - Operations 2-attachment 91_hoist STC flight testing documents 12-26-07 (item 94, PDF, 7 pages, 394 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245200&FileExtension=pdf&FileName=Operations%202-Attachment%2091_Hoist%20STC%20Flight%20Testing%20Documents%2012-26-07-Rel.pdf - Operations 2-attachment 92_usfs post accident weighing (item 95, PDF, 1 page, 13 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245249&FileExtension=pdf&FileName=Operations%202-Attachment%2092_USFS%20Post%20Accident%20Weighing-Master.pdf - Operations 2-attachment 93_usfs contract cure notices (item 96, PDF, 23 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245270&FileExtension=pdf&FileName=Operations%202-Attachment%2093_USFS%20Contract%20Cure%20Notices-Rel.pdf - Operations 2-attachment 94_usfs contract termination letters (item 97, PDF, 5 pages, 454 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245339&FileExtension=pdf&FileName=Operations%202-Attachment%2094_USFS%20Contract%20Termination%20Letters-Rel.pdf - Operations 2-attachment 95_chi responses to cure notices (item 98, PDF, 25 pages, 2.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245342&FileExtension=pdf&FileName=Operations%202-Attachment%2095_CHI%20responses%20to%20Cure%20Notices-Rel.pdf - Operations 2-attachment 96_contract AG-024B-C-08-9340 (item 99, PDF, 183 pages, 11.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245331&FileExtension=pdf&FileName=Operations%202-Attachment%2096_Contract%20AG-024B-C-08-9340-Rel.pdf - Operations 2-attachment 97_email from chi concerning weight and balance records (item 100, PDF, 2 pages, 79 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245364&FileExtension=pdf&FileName=Operations%202-Attachment%2097_Email%20from%20CHI%20concerning%20weight%20and%20balance%20records-Rel.pdf - Operations 2-attachment 98_e-mail excerpt from usfs chuck taylor concerning usfs position on plus spec engines (item 101, PDF, 3 pages, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245344&FileExtension=pdf&FileName=Operations%202-Attachment%2098_E-mail%20excerpt%20from%20USFS%20Chuck%20Taylor%20concerning%20USFS%20position%20on%20plus%20spec%20engines-Master.pdf - Operations 2-attachment 99_record of conversation-chi director of maintenance (item 102, PDF, 1 page, 42 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245347&FileExtension=pdf&FileName=Operations%202-Attachment%2099_Record%20of%20Conversation-CHI%20Director%20of%20Maintenance-Rel.pdf - Operations 2-attachment 100_email from usfs concerning reweighing of helicopters on contracts (item 103, PDF, 3 pages, 246 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245350&FileExtension=pdf&FileName=Operations%202-Attachment%20100_Email%20from%20USFS%20concerning%20reweighing%20of%20helicopters%20on%20contracts-Rel.pdf - Operations 2-attachment 101_usfs letter to chi dated March 20 2006 concerning use of 25 minute charts (item 104, PDF, 1 page, 109 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245353&FileExtension=pdf&FileName=Operations%202-Attachment%20101_USFS%20letter%20to%20CHI%20dated%20March%2020%202006%20concerning%20use%20of%2025%20minute%20charts-Rel.pdf - Operations 2-attachment 102_email from chi concerning compensation (item 105, PDF, 1 page, 41 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245356&FileExtension=pdf&FileName=Operations%202-Attachment%20102_Email%20from%20CHI%20concerning%20compensation-Rel.pdf - Operations 2-attachment 103_email from chi concerning chi's estimate of N612AZ'S empty weight (item 106, PDF, 3 pages, 130 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245359&FileExtension=pdf&FileName=Operations%202-Attachment%20103_Email%20from%20CHI%20concerning%20CHI%27s%20estimate%20of%20N612AZ%27s%20empty%20weight-Rel.pdf - Operations 2-attachment 104_S-61N instrument panel diagrams showing pilot-copilot focus areas information provided (item 107, PDF, 5 pages, 4.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245361&FileExtension=pdf&FileName=Operations%202-Attachment%20104_S-61N%20instrument%20panel%20diagrams%20showing%20pilot-copilot%20focus%20areas%20Information%20provide-Master.pdf - Operations 2-attachment 105_first flight out of H44 passenger statements (item 108, PDF, 8 pages, 757 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245375&FileExtension=pdf&FileName=Operations%202-Attachment%20105_First%20Flight%20out%20of%20H44%20Passenger%20Statements-Rel.pdf - Operations 2-attachment 106_FAA determination of public aircraft status (item 109, PDF, 2 pages, 81 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245406&FileExtension=pdf&FileName=Operations%202-Attachment%20106_FAA%20Determination%20of%20Public%20Aircraft%20Status-Rel.pdf - Operations 2-attachment 107_dave wolf's statement (item 110, PDF, 1 page, 182 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245409&FileExtension=pdf&FileName=Operations%202-Attachment%20107_Dave%20Wolf%27s%20Statement-Rel.pdf - Operations 2-attachment 108_correspondence from chi and FAA regarding use of rfms 6 7 and 8 (item 111, PDF, 15 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245412&FileExtension=pdf&FileName=Operations%202-Attachment%20108_Correspondence%20from%20CHI%20and%20FAA%20Regarding%20Use%20of%20RFMS%206%207%20and%208-Rel.pdf - Operations 2-attachment 108A_further FAA correspondence regarding use of rfms 6 7 and 8 (item 112, PDF, 7 pages, 310 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245483&FileExtension=pdf&FileName=Operations%202-Attachment%20108A_Further%20FAA%20Correspondence%20Regarding%20Use%20of%20RFMS%206%207%20and%208-Rel.pdf - Operations 2-attachment 109_documents concerning FAA postaccident actions (item 113, PDF, 22 pages, 4.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245472&FileExtension=pdf&FileName=Operations%202-Attachment%20109_Documents%20Concerning%20FAA%20Postaccident%20Actions-Rel.pdf - Operations 2-attachment 110_information from FAA concerning addition of N612AZ N103WF N61NH and N725JH to chsi's p (item 114, PDF, 44 pages, 2.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245509&FileExtension=pdf&FileName=Operations%202-Attachment%20110_Information%20from%20FAA%20Concerning%20Addition%20of%20N612AZ%20N103WF%20N61NH%20and%20N725JH%20to%20CHSI%27-Rel.pdf - Meteorology 5-factual report of group chairman (item 115, PDF, 18 pages, 4.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245136&FileExtension=pdf&FileName=Meteorology%205-Factual%20Report%20of%20Group%20Chairman-Master.pdf - Meteorology 5-addendum 1 (item 116, PDF, 16 pages, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245324&FileExtension=pdf&FileName=Meteorology%205-Addendum%201-Master.pdf - Meteorology 5-errata for addendum 1 (item 117, PDF, 2 pages, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245426&FileExtension=pdf&FileName=Meteorology%205-Errata%20for%20Addendum%201-Master.pdf - Survival factors 6-factual report of group chairman (item 118, PDF, 33 pages, 583 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245265&FileExtension=pdf&FileName=Survival%20Factors%206-Factual%20Report%20of%20Group%20Chairman-Master.pdf - Survival factors 6-attachment 1 irpg (item 119, PDF, 2 pages, 137 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244941&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%201%20IRPG-Master.pdf - Survival factors 6-attachment 2 wreckage photos (item 120, PDF, 11 pages, 2.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244949&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%202%20Wreckage%20Photos-Master.pdf - Survival factors 6-attachment 3 N61NH sistership photos (item 121, PDF, 9 pages, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244943&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%203%20N61NH%20Sistership%20Photos-Master.pdf - Survival factors 6-attachment 4 seat drawings (item 122, PDF, 5 pages, 447 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245183&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%204%20Seat%20drawings-Rel.pdf - Survival factors 6-attachment 5 restraint photos (item 123, PDF, 11 pages, 2.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244951&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%205%20Restraint%20Photos-Master.pdf - Survival factors 6-attachment 6 exhibit 4 restraint inspection guidelines (item 124, PDF, 2 pages, 66 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244945&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%206%20Exhibit%204%20Restraint%20Inspection%20Guidelines-Master.pdf - Survival factors 6-attachment 7 FAA forms 8110-3 (item 125, PDF, 26 pages, 2.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245186&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%207%20FAA%20Forms%208110-3-Rel.pdf - Survival factors 6-attachment 8 injury chart (item 126, PDF, 5 pages, 40 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244947&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%208%20Injury%20Chart-Master.pdf - Survival factors 6-addendum a attachment 9 STC SR02327AK (item 127, PDF, 19 pages, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245189&FileExtension=pdf&FileName=Survival%20Factors%206-Addendum%20A%20Attachment%209%20STC%20SR02327AK-Rel.pdf - Survival factors 6-addendum b attachment 10 (item 128, PDF, 11 pages, 255 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245519&FileExtension=pdf&FileName=Survival%20Factors%206-Addendum%20B%20Attachment%2010-Master.pdf - Survival factors 6-emergency response specialist report (item 129, PDF, 10 pages, 66 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245280&FileExtension=pdf&FileName=Survival%20Factors%206-Emergency%20Response%20Specialist%20Report-Master.pdf - Survival factors 6-emergency response specialist report attachment 1_overview of incident command system as provide (item 130, PDF, 2 pages, 15 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245272&FileExtension=pdf&FileName=Survival%20Factors%206-Emergency%20Response%20Specialist%20Report%20Attachment%201_Overview%20of%20Incident%20Command%20System%20%20as%20Prov-Master.pdf - Survival factors 6-emergency response specialist report attachment 2_excerpts from the trinity helibase operating GU (item 131, PDF, 3 pages, 137 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245275&FileExtension=pdf&FileName=Survival%20Factors%206-Emergency%20Response%20Specialist%20Report%20Attachment%202_Excerpts%20from%20the%20Trinity%20Helibase%20Operati-Rel.pdf - Survival factors 6-emergency response specialist report attachment 3_trinity helibase crash rescue plan (item 132, PDF, 2 pages, 61 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245278&FileExtension=pdf&FileName=Survival%20Factors%206-Emergency%20Response%20Specialist%20Report%20Attachment%203_Trinity%20Helibase%20Crash%20Rescue%20Plan-Rel.pdf - Airworthiness factual report of group chairman 35 photo's (item 133, PDF, 80 pages, 10.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245229&FileExtension=pdf&FileName=Airworthiness%20Factual%20Report%20of%20Group%20Chairman%2035%20photo%27s-Master.pdf - Errata to airworthiness group chairman's factual report (item 134, PDF, 2 pages, 15 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245465&FileExtension=pdf&FileName=Errata%20to%20Airworthiness%20Group%20Chairman%27s%20Factual%20Report-Master.pdf - Attachment 1 to airworthiness group chairman's factual report (item 135, PDF, 9 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245469&FileExtension=pdf&FileName=Attachment%201%20to%20Airworthiness%20Group%20Chairman%27s%20Factual%20Report-Master.pdf - Addendum 1 to airworthiness factual report of group chairman (item 136, PDF, 6 pages, 39 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245368&FileExtension=pdf&FileName=Addendum%201%20to%20Airworthiness%20Factual%20Report%20of%20Group%20Chairman-Master.pdf - Addendum 2 to airworthiness factual report of group chairman (item 137, PDF, 3 pages, 21 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245397&FileExtension=pdf&FileName=Addendum%202%20to%20Airworthiness%20Factual%20Report%20of%20Group%20Chairman-Master.pdf - Addendum 3 to airworthiness factual report 7 embedded photos (item 138, PDF, 6 pages, 382 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245467&FileExtension=pdf&FileName=Addendum%203%20to%20Airworthiness%20Factual%20Report%207%20embedded%20photos-Master.pdf - Addendum 4 to airworthiness factual report of group chairman (item 139, PDF, 3 pages, 44 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245506&FileExtension=pdf&FileName=Addendum%204%20to%20Airworthiness%20Factual%20Report%20of%20Group%20Chairman-Master.pdf - Maintenance records 11-factual report of group chairman (item 140, PDF, 17 pages, 190 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245173&FileExtension=pdf&FileName=Maintenance%20Records%2011-Factual%20Report%20of%20Group%20Chairman-Master.pdf - Maintenance records 11-attachment 1-AIR carrier certificates (item 141, PDF, 4 pages, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245206&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%201-Air%20Carrier%20Certificates-Rel.pdf - Maintenance records 11-attachment 2-type certificate data sheets (item 142, PDF, 18 pages, 94 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244966&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%202-Type%20Certificate%20Data%20Sheets-Master.pdf - Maintenance records 11-attachment 3-continuing analysis and surveillance system meetings (item 143, PDF, 15 pages, 9.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245203&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%203-Continuing%20Analysis%20and%20Surveillance%20System%20Meetings-Rel.pdf - Maintenance records 11-attachment 4-airworthiness directive and service bulletin summary (item 144, PDF, 23 pages, 3.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245218&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%204-Airworthiness%20Directive%20and%20Service%20Bulletin%20Summary-Rel.pdf - Maintenance records 11-attachment 5-aircraft flight and maintenance logs (item 145, PDF, 21 pages, 8.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245221&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%205-Aircraft%20Flight%20and%20Maintenance%20Logs-Rel.pdf - Maintenance records 11-attachment 51-aircraft flight and maintenance logs (item 146, PDF, 13 pages, 8.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245227&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%2051-Aircraft%20Flight%20and%20Maintenance%20Logs-Rel.pdf - Maintenance records 11-attachment 52-aircraft flight and maintenance logs (item 147, PDF, 9 pages, 2.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245224&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%2052-Aircraft%20Flight%20and%20Maintenance%20Logs-Rel.pdf - Maintenance records 11-attachment 6-major repairs and alternations (item 148, PDF, 17 pages, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245209&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%206-Major%20Repairs%20and%20Alternations-Rel.pdf - Maintenance records 11-attachment 7-time limit control components (item 149, PDF, 11 pages, 683 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244968&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%207-Time%20Limit%20Control%20Components-Master.pdf - Maintenance records 11-attachment 8-approved vendor list (item 150, PDF, 2 pages, 334 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244970&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%208-Approved%20Vendor%20List-Master.pdf - Maintenance records 11-attachment 9-main gear box information (item 151, PDF, 5 pages, 278 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245212&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%209-Main%20Gear%20Box%20Information-Rel.pdf - Maintenance records 11-attachment 10-input freewheeling unit information (item 152, PDF, 5 pages, 181 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245215&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%2010-Input%20Freewheeling%20Unit%20Information-Rel.pdf - Maintenance records 11-attachment 11-transmission inspection panel information (item 153, PDF, 7 pages, 267 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244972&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%2011-Transmission%20Inspection%20Panel%20Information-Master.pdf - Maintenance records 11-attachment 12-FAA response letter (item 154, PDF, 4 pages, 680 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245232&FileExtension=pdf&FileName=Maintenance%20Records%2011-Attachment%2012-FAA%20Response%20Letter-Rel.pdf - Cockpit voice-flight data recorder 12-factual report of group chairman (item 155, PDF, 45 pages, 393 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245247&FileExtension=pdf&FileName=Cockpit%20Voice-Flight%20Data%20Recorder%2012-Factual%20Report%20of%20Group%20Chairman-Master.pdf - Cockpit voice recorder 12 - group chairman's sound spectrum study (item 156, PDF, 11 pages, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=20469651&FileExtension=pdf&FileName=Cockpit%20Voice%20Recorder%2012-Group%20Chairman_s%20Sound%20Spectrum%20Study_Release-Rel.pdf - Cockpit voice recorder 12 - addendum to group chairman's sound spectrum study (item 157, PDF, 13 pages, 868 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=20470651&FileExtension=pdf&FileName=Cockpit%20Voice%20Recorder%2012-Addendum%20to%20Group%20Chairman_s%20Sound%20Spectrum%20Study_Release-Rel.pdf - Cockpit voice recorder 12-errata to group chairman's sound spectrum study (item 158, PDF, 9 pages, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245422&FileExtension=pdf&FileName=Cockpit%20Voice%20Recorder%2012-Errata%20to%20Group%20Chairman%27s%20Sound%20Spectrum%20Study-Master.pdf - Aircraft performance 13-helicopter hover study (item 159, PDF, 29 pages, 318 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245191&FileExtension=pdf&FileName=Aircraft%20Performance%2013-Helicopter%20Hover%20Study-Master.pdf - Aircraft performance 13-addendum 1 to the helicopter hover study (item 160, PDF, 11 pages, 127 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245418&FileExtension=pdf&FileName=Aircraft%20Performance%2013-Addendum%201%20to%20the%20Helicopter%20Hover%20Study-Master.pdf - Aircraft performance 13-errata to the helicopter hover study (item 161, PDF, 30 pages, 493 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245416&FileExtension=pdf&FileName=Aircraft%20Performance%2013-ERRATA%20to%20the%20Helicopter%20Hover%20Study-Master.pdf - Aircraft performance 13-addendum 2 to the helicopter hover study (item 162, PDF, 38 pages, 1.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245521&FileExtension=pdf&FileName=Aircraft%20Performance%2013-Addendum%202%20to%20the%20Helicopter%20Hover%20Study-Master.pdf - Party comments on hover study addendum 2 (item 163, PDF, 15 pages, 2.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245524&FileExtension=pdf&FileName=Party%20Comments%20on%20Hover%20Study%20Addendum%202-Rel.pdf - Materials laboratory factual report 08-121 (item 164, PDF, 35 pages, 6.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245290&FileExtension=pdf&FileName=Materials%20Laboratory%20Factual%20Report%2008-121-Master.pdf - Materials laboratory factual report 08-121 errata sheet (item 165, PDF, 2 pages, 23 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245399&FileExtension=pdf&FileName=Materials%20Laboratory%20Factual%20Report%2008-121%20Errata%20Sheet-Master.pdf - Materials laboratory 15-factual report 09-013 (item 166, PDF, 19 pages, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244953&FileExtension=pdf&FileName=Materials%20Laboratory%2015-Factual%20Report%2009-013-Master.pdf - Materials laboratory 15-factual report 09-019 (item 167, PDF, 19 pages, 7.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245259&FileExtension=pdf&FileName=Materials%20Laboratory%2015-Factual%20Report%2009-019-Master.pdf - Materials laboratory 15-factual report 09-054 fuel testing report review (item 168, PDF, 4 pages, 101 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245159&FileExtension=pdf&FileName=Materials%20Laboratory%2015-Factual%20Report%2009-054%20Fuel%20Testing%20Report%20Review-Master.pdf - Materials laboratory 15-errata to materials laboratory factual report 09-054 fuel testing report review (item 169, PDF, 1 page, 11 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245500&FileExtension=pdf&FileName=Materials%20Laboratory%2015-Errata%20to%20Materials%20Laboratory%20Factual%20Report%2009-054%20Fuel%20Testing%20Report%20Review-Master.pdf - Materials laboratory factual report 09-094 (item 170, PDF, 24 pages, 986 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245372&FileExtension=pdf&FileName=Materials%20Laboratory%20Factual%20Report%2009-094-Master.pdf - Materials laboratory factual report 10-002 (item 171, PDF, 6 pages, 547 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245370&FileExtension=pdf&FileName=Materials%20Laboratory%20Factual%20Report%2010-002-Master.pdf - H44 approach and landing study (item 172, PDF, 18 pages, 3.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245502&FileExtension=pdf&FileName=H44%20Approach%20and%20Landing%20Study-Master.pdf - Carson comments on H44 approach and landing study (item 173, PDF, 3 pages, 136 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245535&FileExtension=pdf&FileName=Carson%20Comments%20on%20H44%20Approach%20and%20Landing%20Study-Master.pdf - Carson 2009 flight test (item 174, PDF, 49 pages, 4.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245386&FileExtension=pdf&FileName=Carson%202009%20Flight%20Test-Rel.pdf - Carson 2008 flight test (item 175, PDF, 5 pages, 147 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245477&FileExtension=pdf&FileName=Carson%202008%20Flight%20Test-Rel.pdf - Sikorsky report on sikorsky-carson 2010 flight test (item 176, PDF, 13 pages, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245511&FileExtension=pdf&FileName=Sikorsky%20Report%20on%20Sikorsky-Carson%202010%20Flight%20Test-Master.pdf - Carson report on sikorsky-carson 2010 flight test (item 177, PDF, 48 pages, 2.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245514&FileExtension=pdf&FileName=Carson%20Report%20on%20Sikorsky-Carson%202010%20Flight%20Test-Rel.pdf - FAA comments on carson flight tests (item 178, PDF, 3 pages, 570 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245480&FileExtension=pdf&FileName=FAA%20Comments%20on%20Carson%20Flight%20Tests-Rel.pdf - Ge power study (item 179, PDF, 5 pages, 111 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245395&FileExtension=pdf&FileName=GE%20Power%20Study-Master.pdf - Party submission from carson helicopters (item 180, PDF, 60 pages, 4.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245439&FileExtension=pdf&FileName=Party%20Submission%20from%20Carson%20Helicopters-Master.pdf - Carson party submission exhibits 1 to 10 (item 181, PDF, 142 pages, 21.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245454&FileExtension=pdf&FileName=Carson%20Party%20Submission%20Exhibits%201%20to%2010-Rel.pdf - Carson party submission exhibits 11 to 25 (item 182, PDF, 173 pages, 21.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245457&FileExtension=pdf&FileName=Carson%20Party%20Submission%20Exhibits%2011%20to%2025-Rel.pdf - Carson party submissions exhibits 26 to 32 (item 183, PDF, 54 pages, 7.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245460&FileExtension=pdf&FileName=Carson%20Party%20Submissions%20Exhibits%2026%20to%2032-Rel.pdf - Carson party submission exhibits-emails from ge and Sikorsky allowing release of documents stamped proprietary (item 184, PDF, 7 pages, 166 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245463&FileExtension=pdf&FileName=Carson%20Party%20Submission%20Exhibits-Emails%20from%20GE%20and%20Sikorsky%20Allowing%20Release%20of%20Documents%20Stamped%20Proprietary-Rel.pdf - Carson comments on Sikorsky submission (item 185, PDF, 7 pages, 176 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245498&FileExtension=pdf&FileName=Carson%20Comments%20on%20Sikorsky%20Submission-Master.pdf - Carson comments on usfs submission (item 186, PDF, 5 pages, 147 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245496&FileExtension=pdf&FileName=Carson%20Comments%20on%20USFS%20Submission-Master.pdf - Party submission from usfs (item 187, PDF, 29 pages, 410 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245429&FileExtension=pdf&FileName=Party%20Submission%20from%20USFS-Rel.pdf - Party submission from ge (item 188, PDF, 2 pages, 24 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245432&FileExtension=pdf&FileName=Party%20Submission%20from%20GE-Rel.pdf - Party submission from Sikorsky (item 189, PDF, 31 pages, 2.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245435&FileExtension=pdf&FileName=Party%20Submission%20from%20Sikorsky-Rel.pdf - Toxicological report pilot (item 190, PDF, 1 page, 16 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245388&FileExtension=pdf&FileName=Toxicological%20Report%20Pilot-Master.pdf - Statement of party representatives to NTSB investigation (item 191, PDF, 6 pages, 474 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=244958&FileExtension=pdf&FileName=Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation-Rel.pdf - Flight time on 08-05-08 (item 192, PDF, 1 page, 11 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245138&FileExtension=pdf&FileName=Flight%20Time%20on%2008-05-08-Master.pdf - Collective lock-factual report (item 193, PDF, 7 pages, 225 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245162&FileExtension=pdf&FileName=Collective%20Lock-Factual%20Report-Rel.pdf - Miscellaneous correspondence (item 194, PDF, 60 pages, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245252&FileExtension=pdf&FileName=Miscellaneous%20Correspondence-Rel.pdf - Miscellaneous transcript excerpts (item 195, PDF, 13 pages, 86 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245263&FileExtension=pdf&FileName=Miscellaneous%20Transcript%20Excerpts-Master.pdf - Closure of action items from July 30 2009 meeting (item 196, PDF, 8 pages, 45 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245414&FileExtension=pdf&FileName=Closure%20of%20Action%20Items%20from%20July%2030%202009%20Meeting-Master.pdf - Ge aviation letter regarding proprietary items in documents regarding fcu fuel filter contamination submitted by carson (item 197, PDF, 4 pages, 112 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245451&FileExtension=pdf&FileName=GE%20Aviation%20Letter%20Regarding%20Proprietary%20Items%20in%20Documents%20Regarding%20FCU%20Fuel%20Filter%20Contamination%20Submitted%20b-Rel.pdf - Documents regarding fcu fuel filter contamination submitted by carson helicopters part 1 (item 198, PDF, 59 pages, 4.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245442&FileExtension=pdf&FileName=Documents%20Regarding%20FCU%20Fuel%20Filter%20Contamination%20Submitted%20by%20Carson%20Helicopters%20Part%201-Rel.pdf - Documents regarding fcu fuel filter contamination submitted by carson helicopters part 2 (item 199, PDF, 70 pages, 5.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245445&FileExtension=pdf&FileName=Documents%20Regarding%20FCU%20Fuel%20Filter%20Contamination%20Submitted%20by%20Carson%20Helicopters%20Part%202-Rel.pdf - Documents regarding fcu fuel filter contamination submitted by carson helicopters part 3 (item 200, PDF, 70 pages, 4.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245448&FileExtension=pdf&FileName=Documents%20Regarding%20FCU%20Fuel%20Filter%20Contamination%20Submitted%20by%20Carson%20Helicopters%20Part%203-Rel.pdf - Additional information from witness (item 201, PDF, 4 pages, 57 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245486&FileExtension=pdf&FileName=Additional%20Information%20from%20Witness-Rel.pdf - FAA inspector statement regarding visit to trinity helibase on August 7 2008 (item 202, PDF, 2 pages, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245489&FileExtension=pdf&FileName=FAA%20Inspector%20Statement%20Regarding%20Visit%20to%20Trinity%20Helibase%20on%20August%207%202008-Rel.pdf - Information regarding 10 micron airframe fuel filters (item 203, PDF, 29 pages, 4.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245492&FileExtension=pdf&FileName=Information%20Regarding%2010%20Micron%20Airframe%20Fuel%20Filters-Rel.pdf - E-mail from carson concerning seat STC (item 204, PDF, 2 pages, 93 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245517&FileExtension=pdf&FileName=E-mail%20from%20Carson%20Concerning%20Seat%20STC-Rel.pdf - FAA response to NTSB information request 10-282 (item 205, PDF, 7 pages, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245527&FileExtension=pdf&FileName=FAA%20response%20to%20NTSB%20information%20request%2010-282-Rel.pdf - Correspondence with the copilot (item 206, PDF, 12 pages, 142 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245530&FileExtension=pdf&FileName=Correspondence%20with%20the%20Copilot-Rel.pdf - Additional information provided by usfs on November 29 2010 (item 207, PDF, 8 pages, 309 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245533&FileExtension=pdf&FileName=Additional%20Information%20Provided%20by%20USFS%20on%20November%2029%202010-Rel.pdf - Additional information provided by carson helicopters on December 2 2010 (item 208, PDF, 20 pages, 3.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245537&FileExtension=pdf&FileName=Additional%20Information%20Provided%20by%20Carson%20Helicopters%20on%20December%202%202010-Master.pdf - Additional information provided by Sikorsky on December 2 2010 (item 209, PDF, 5 pages, 1.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245540&FileExtension=pdf&FileName=Additional%20Information%20Provided%20by%20Sikorsky%20on%20December%202%202010-Rel.pdf - Aerial photos I�� burning wreckage smoke plume (item 210, PDF, 2 pages): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245328&FileExtension=pdf&FileName=Aerial%20Photos%20%EF%BF%BD%20Burning%20Wreckage%20Smoke%20Plume-Master.pdf - Photo 1 smoke plume 1943 PDT N420RL 8 miles out (item 211, PDF, 1 page, 916 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245294&FileExtension=pdf&FileName=Photo%201%20%20Smoke%20plume%201943%20PDT%20N420RL%208%20miles%20out-Master.pdf - Photo 2 smoke plume 1945 PDT N420RL 5 miles out (item 212, PDF, 1 page, 919 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245296&FileExtension=pdf&FileName=Photo%202%20%20Smoke%20plume%201945%20PDT%20N420RL%205%20miles%20out-Master.pdf - Photo 3 smoke plume 1946 PDT N420RL 2 miles out (item 213, PDF, 1 page, 948 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245298&FileExtension=pdf&FileName=Photo%203%20%20Smoke%20plume%201946%20PDT%20N420RL%202%20miles%20out-Master.pdf - Photo 4 smoke plume 1947 PDT N420RL taken over site (item 214, PDF, 1 page, 970 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245300&FileExtension=pdf&FileName=Photo%204%20%20Smoke%20plume%201947%20PDT%20N420RL%20taken%20over%20site-Master.pdf - Photo 5 smoke plume 1948 PDT N420RL taken over site (item 215, PDF, 1 page, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245302&FileExtension=pdf&FileName=Photo%205%20%20Smoke%20plume%201948%20PDT%20N420RL%20taken%20over%20site-Master.pdf - Photo 6 smoke plume 1951 PDT N420RL taken over site (item 216, PDF, 1 page, 996 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245304&FileExtension=pdf&FileName=Photo%206%20%20Smoke%20plume%201951%20PDT%20N420RL%20taken%20over%20site-Master.pdf - Photo 7 smoke plume 1954 PDT N420RL taken over site (item 217, PDF, 1 page, 987 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245306&FileExtension=pdf&FileName=Photo%207%20%20Smoke%20plume%201954%20PDT%20N420RL%20taken%20over%20site-Master.pdf - Photo 8 smoke plume 1955 PDT N420RL taken over site (item 218, PDF, 1 page, 936 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245308&FileExtension=pdf&FileName=Photo%208%20%20Smoke%20plume%201955%20PDT%20N420RL%20taken%20over%20site-Master.pdf - Photo 9 smoke plume 1956 PDT N420RL taken over site (item 219, PDF, 1 page, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245310&FileExtension=pdf&FileName=Photo%209%20%20Smoke%20plume%201956%20PDT%20N420RL%20taken%20over%20site-Master.pdf - Photo 10 smoke plume 2000 PDT N420RL taken over site (item 220, PDF, 1 page, 943 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245312&FileExtension=pdf&FileName=Photo%2010%20%20Smoke%20plume%202000%20PDT%20N420RL%20taken%20over%20site-Master.pdf - Photo 11 smoke plume 2001 PDT N420RL taken over site (item 221, PDF, 1 page, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245314&FileExtension=pdf&FileName=Photo%2011%20%20Smoke%20plume%202001%20PDT%20N420RL%20taken%20over%20site-Master.pdf - Photo 12 smoke plume 2001 PDT N420RL taken over site (item 222, PDF, 1 page, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245316&FileExtension=pdf&FileName=Photo%2012%20%20Smoke%20plume%202001%20PDT%20N420RL%20taken%20over%20site-Master.pdf - Photo 13 smoke plume 1949 PDT N90301 2-3 miles out (item 223, PDF, 1 page, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245318&FileExtension=pdf&FileName=Photo%2013%20%20Smoke%20plume%201949%20PDT%20N90301%202-3%20miles%20out-Master.pdf - Photo 14 smoke plume 1950 PDT N90301 taken over site (item 224, PDF, 1 page, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245320&FileExtension=pdf&FileName=Photo%2014%20%20Smoke%20plume%201950%20PDT%20N90301%20taken%20over%20site-Master.pdf - Photo 15 smoke plume 1951 PDT N90301 taken over site (item 225, PDF, 1 page, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245322&FileExtension=pdf&FileName=Photo%2015%20%20Smoke%20plume%201951%20PDT%20N90301%20taken%20over%20site-Master.pdf - Photo 16 chsi-submitted photo of accident helicopter taken on March 25 2008 (item 226, PDF, 1 page, 785 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245494&FileExtension=pdf&FileName=Photo%2016%20CHSI-submitted%20photo%20of%20accident%20helicopter%20taken%20on%20March%2025%202008-Master.pdf - Columbia helicopters inc submission (item 227, PDF, 22 pages, 4.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245504&FileExtension=pdf&FileName=Columbia%20Helicopters%20Inc%20Submission-Master.pdf - Administration investigation report previously released under foia (item 228, PDF, 106 pages, 23.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245542&FileExtension=pdf&FileName=Administration%20Investigation%20Report%20Previously%20Released%20under%20FOIA-Master.pdf - Affidavit of roger douglass dated December 3 2010 (item 229, PDF, 3 pages, 94 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245545&FileExtension=pdf&FileName=Affidavit%20of%20Roger%20Douglass%20dated%20December%203%202010-Rel.pdf - Copilot email dated December 4 2010 (item 230, PDF, 13 pages, 129 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245548&FileExtension=pdf&FileName=Copilot%20email%20dated%20December%204%202010-Rel.pdf - Memorandum I�� board member participation in the board hearing concerning the August 8 2008 crash during takeoff of firef (item 231, PDF, 4 pages): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245550&FileExtension=pdf&FileName=Memorandum%20%EF%BF%BD%20Board%20Member%20Participation%20in%20the%20Board%20Hearing%20concerning%20the%20August%208%202008%20Crash%20During%20Takeoff%20of-Master.pdf - Petition for reconsideration (item 232, PDF, 26 pages, 7.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245554&FileExtension=pdf&FileName=Petition%20For%20Reconsideration-Master.pdf - Sikorsky response to petition (item 233, PDF, 21 pages, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245556&FileExtension=pdf&FileName=Sikorsky%20Response%20to%20Petition-Master.pdf - Petition for reconsideration submission_ge aviation response (item 234, PDF, 3 pages, 215 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245560&FileExtension=pdf&FileName=Petition%20For%20Reconsideration%20Submission_GE%20Aviation%20Response-Master.pdf - Petition for reconsideration submission_us forest service response (item 235, PDF, 1 page, 47 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245558&FileExtension=pdf&FileName=Petition%20For%20Reconsideration%20Submission_US%20Forest%20Service%20Response-Master.pdf - Petition for reconsideration response (item 236, PDF, 6 pages, 294 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=245562&FileExtension=pdf&FileName=Petition%20for%20Reconsideration%20Response-Master.pdf From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.