# NTSB DCA97MA017: Embraer EMB-120RT, N265CA, Monroe, MI, January 9, 1997 - Type: NTSB accident investigation - Classification: Accident · Fatal · Class 1 · Major · Final report - Date: January 9, 1997, 15:54 local (20:54 UTC) - Place: Monroe, MI - Coordinates: 41.909755, -83.38034 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=41.9098&lon=-83.3803&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 29 fatal - Status: Completed, report August 21, 2001 - Report: Board-adopted at Board Meeting - Investigation class: Class 1 - NTSB office: Major Investigations Division - Safety recommendations: Yes - NTSB case key (mKey): 11023 - NTSB case page: https://www.ntsb.gov/investigations/Pages/DCA97MA017.aspx - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/11023/pdf - Board report AAR9804 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR9804.pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=11023 - Page: https://openairdocs.org/ntsb/DCA97MA017 ## Probable cause The Federal Aviation Adminstration's (FAA) failure to establish adequate aircraft certification standards for flight in icing conditions, the FAA's failure to ensure that at Centro Tecnico Aeroespacial/FAA-approved procedure for the accident airplane's deice system operation was implemented by U.S.-based air carriers, and the FAA's failure to require the establishment of adequate minimum airspeeds for icing conditions, which led to the loss of control when the airplane accumulated a thin, rough, accretion of ice on its lifting surfaces. Contributing to the accident were the flightcrew's decision to operate in icing conditions near the lower margin of the operating airspeed envelope (with flaps retracted) and Comair's failure to establish and adequately disseminate unambiguous minimum airspeed values for flap configurations and for flight in icing conditions. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, approach - weather condition - icing conditions (cause) - aircraft control - not maintained, pilot in command (cause) - aircraft control - not maintained (cause) - airframe - ice (cause) - inadequate certification/approval, faa(organization) (cause) - information unclear, company/operator management (cause) - in-flight planning/decision - inadequate, pilot in command (cause) - anti-ice/deice system - airspeed - not maintained, pilot in command (cause) - stall (cause) - In flight collision with terrain/water, descent - uncontrolled - terrain condition - open field ## Analysis The flight was being vectored for the approach to runway 3R at Detroit Metropolitan Wayne County Airport (DTW) when the aircraft descended and impacted the ground. The aircraft struck the ground in a steep nose-down attitude in a level field in a rural area about 19 nm southwest of DTW. The flight carried 26 passengers and 3 crew members. There were no survivors and the airplane was destroyed by impact forces and a post crash fire. Instrument meteorological conditions prevailed at the time of the accident. The investigation revealed that it was likely that the airplane gradually accumulated a thin, rough glaze/mixed ice coverage on the leading edge deicing boot surfaces, possibly with ice ridge formation on the leading edge upper surface, as the airplane descended from 7,000 feet mean sea level (msl) to 4,000 feet msl in icing conditions, which may have been imperceptible to the pilots. The pilots had been instructed by air traffic control to slow to 150 knots and according to flight data recorder information, the airplane began to show signs of departure from controlled flight as it decelerated from 155 to 156 knots while in a flaps-up configuration. The investigation disclosed that the FAA failed to adopt a systematic and proactive approach to the certification, and operational issues of turbopropeller-driven transport airplane icing. The icing certification process has been inadequate because it has not required manufacturers to demonstrate the airplane's flight handling and stall characteristics under a sufficiently realistic range of adverse ice accretion/flight handling conditions. The aircraft manufacturer had issued a revision in April, 1996 to the approved flight manual which included activation of the leading edge deicing boots at the first sign of ice formation. The airplane operator did not incorporate the procedure, because it was contrary to the company's trained procedures and practices and of the belief that enacting the changes would result in potentially unsafe operation. Investigators' discussion with management personnel at each of the seven U.S.-based operators of the aircraft indicated that at the time of the accident only two of these operators had changed their procedures to reflect the information in the revision. The FAA, at the time of the accident, did not require manufacturers of all turbine-engine driven airplanes to publish minimum airspeed information for various flap configurations and phases and conditions of flight. During Safety Board investigators postaccident interviews with company pilots, there were inconsistent answers on the complex and varied minimum airspeed requirements established by the company for both icing and nonicing conditions. It was also noted that the pilots uncertainty of the appropriate airspeeds might have been associated with the language used, the different airspeeds and criteria contained in the guidance, the company's methods of distribution, and the company's failure t o incorporate the guidance as a formal, permanent revision to the flight standards manual. ## Factual narrative On January 9, 1997, Comair flight 3272, an Embraer EMB-120RT, N265CA, crashed while being vectored for approach to runway 3R at Detroit Metropolitan Wayne County Airport. The flight was operated under Code of Federal Regulations (CFR) Part 135 and carried 26 passengers and 3 crew members. There were no survivors, and the airplane was destroyed by impact forces and a post crash fire. Instrument meteorological conditions prevailed at the time of the accident. ## Aircraft - Registration: [N265CA](https://openairdocs.org/deregistered/N265CA-2001-08-20), registration cancelled 2001-08-20, S/N 120.257 (OpenAirDocs) - Reported make and model: Embraer EMB-120RT - Registry model: [Embraer EMB-120RT](https://openairdocs.org/model/embraer-emb-120rt) (registry code 3260202) (OpenAirDocs) - Category: Airplane - Serial number: 120257 - Airframe hours: 12752 - Engines: P&W PW118 1800 horsepower turbo prop - Damage: Destroyed - Fire: On-Ground - Flight: Part 135 - Operator: Comair, Inc., doing business as Comair Airlines - Registered owner: First Security Bank Of Utah, - Airworthiness certificate: Standard, Transport - Last inspection: Continuous airworthiness, December 27, 1996, 89 hours before - Departed: CVG, CINCINNATI, OH - Destination: DTW, DETROIT, MI - Flight plan: IFR - Airport: DTW, Detroit Metropolitan, runway 3R, 10,000 × 150 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 42; commercial, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: helicopter; medical: class 1, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 5,329 total, 2,302 in this make and model, 3,400 as pilot in command, 234 in the last 90 days, 85 in the last 30 days, 2 in the last 24 hours - Co-pilot; age 28; injuries: fatal; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; seat: rear ## Weather - Conditions: Instrument (IMC), Day - Wind: 70° at 5 knots - Visibility: 0.75 statute miles - Lowest ceiling: 600 ft broken - Temperature: 28 °F, dew point 27 °F - Altimeter: 29.00 inHg - Observed at: DTW, 19 nm away ## 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 19970109000259A](https://openairdocs.org/incident/19970109000259A), Jan 9, 1997: Emb EMB120RT, Detroit, MI, Destroyed, 29 fatal. On approach when crashed, weather may have been a factor. (.4)the flight was being vectored for the approach to runway 3R at Detroit metropolitan Wayne county… ## Docket (140 files) The files NTSB released with the investigation on May 7, 1997, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=11023. 75.6 MB in all. - Operations 2 - Factual Report of Group Chairman (item 1, .PDF, 4.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396497&FileExtension=.PDF&FileName=Operations%202%20-%20Factual%20Report%20of%20Group%20Chairman-Redacted.PDF - Operations 2 - Attachment 1 - COMAIR EMB-120 V-Speeds (item 2, .PDF, 20 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066170&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%201%20-%20COMAIR%20EMB-120%20V-Speeds-Master.PDF - Operations 2 - Attachment 2 - Airplane Weight and Balance Calculations (item 3, .PDF, 332 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396498&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%202%20-%20Airplane%20Weight%20and%20Balance%20Calculations-Redacted.PDF - Operations 2 - Attachment 3 - Toxicology Reports (item 4, .PDF, 152 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396499&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%203%20-%20Toxicology%20Reports-Redacted.PDF - Operations 2 - Attachment 4 - Program Tracking and Reporting Subsystems ASA and Skywest Airlines (item 5, .PDF, 77 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066173&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%204%20-%20Program%20Tracking%20and%20Reporting%20Subsystems%20ASA%20and%20Skywest%20Airlines-Master.PDF - Operations 2 - Attachment 5 - Airworthiness Directive 96-02-4 (item 6, .PDF, 145 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396500&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%205%20-%20Airworthiness%20Directive%2096-02-4-Redacted.PDF - Operations 2 - Attachment 6 - COMAIR Flight Standards Bulletin (item 7, .PDF, 169 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396501&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%206%20-%20COMAIR%20Flight%20Standards%20Bulletin-Redacted.PDF - Operations 2 - Attachment 7 - Excerpts from Embraer EMB-120 Airplane Flight Manual (item 8, .PDF, 170 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066176&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%207%20-%20Excerpts%20from%20Embraer%20EMB-120%20Airplane%20Flight%20Manual-Master.PDF - Operations 2 - Attachment 8 - Excerpts from COMAIR EMB-120 Flight Standards Manual (item 9, .PDF, 276 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066177&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%208%20-%20Excerpts%20from%20COMAIR%20EMB-120%20Flight%20Standards%20Manual-Master.PDF - Operations 2 - Attachment 9 - Excerpts from EMB-120 1996 Recurrent Ground School Training Guide (item 10, .PDF, 404 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066178&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%209%20-%20Excerpts%20from%20EMB-120%201996%20Recurrent%20Ground%20School%20Training%20Guide-Master.PDF - Operations 2 - Attachment 10 - Excerpts from COMAIR Flight Operations Traning Manual EMB-120 (item 11, .PDF, 252 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066179&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%2010%20-%20Excerpts%20from%20COMAIR%20Flight%20Operations%20Traning%20Manual%20EMB-120-Master.PDF - Operations 2 - Attachment 11 - Excerpts from COMAIR EMB-120 Pilot Training Manual (item 12, .PDF, 94 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066180&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%2011%20-%20Excerpts%20from%20COMAIR%20EMB-120%20Pilot%20Training%20Manual-Master.PDF - Operations 2 - Attachment 12 - COMAIR Inter-Office Memos (item 13, .PDF, 160 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066181&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%2012%20-%20COMAIR%20Inter-Office%20Memos-Master.PDF - Operations 2 - Attachment 13 - Embraer Operations Bulletin 120-002/96 (item 14, .PDF, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066182&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%2013%20-%20Embraer%20Operations%20Bulletin%20120-002%2F96-Master.PDF - Operations 2 - Attachment 14 - Correspondence (item 15, .PDF, 227 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396502&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%2014%20-%20Correspondence-Redacted.PDF - Operations 2 - Addendum 1 - Factual Report of Group Chairman (item 16, .PDF, 737 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396503&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%201%20-%20Factual%20Report%20of%20Group%20Chairman-Redacted.PDF - Operations 2 - Addendum 2 - Factual Report of Group Chairman - Interview with Barbara Carlson and Pam Mockbee (item 17, .PDF, 52 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396504&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%202%20-%20Factual%20Report%20of%20Group%20Chairman%20-%20Interview%20with%20Barbara%20Carlson%20and%20Pam%20Mockbee-Redacted.PDF - Operations 2 - Addendum 3 - Factual Report of Group Chairman (item 18, .PDF, 706 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396505&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%203%20-%20Factual%20Report%20of%20Group%20Chairman-Redacted.PDF - Operations 2 - Addendum 4 - Factual Report of Group Chairman (item 19, .PDF, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396506&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%204%20-%20Factual%20Report%20of%20Group%20Chairman-Redacted.PDF - ATC 3 - Factual Report of Group Chairman (item 20, .PDF, 463 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396507&FileExtension=.PDF&FileName=ATC%203%20-%20Factual%20Report%20of%20Group%20Chairman-Redacted.PDF - ATC 3 - Attachment 1 - Preliminary Notice/Notification Record (item 21, .PDF, 164 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396508&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%201%20-%20Preliminary%20Notice%2FNotification%20Record-Redacted.PDF - ATC 3 - Attachment 2 - FAA Report of Aircraft Accident (item 22, .PDF, 216 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396509&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%202%20-%20FAA%20Report%20of%20Aircraft%20Accident-Redacted.PDF - ATC 3 - Attachment 3 - Transcripts (item 23, .PDF, 913 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396510&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%203%20-%20Transcripts-Redacted.PDF - ATC 3 - Attachment 4 - ATIS (item 24, .PDF, 111 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396511&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%204%20-%20ATIS-Redacted.PDF - ATC 3 - Attachment 5 - Flight Tracks (NTSB + FAA Separation Log) (item 25, .PDF, 425 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066193&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%205%20-%20Flight%20Tracks%20(NTSB%20%2B%20FAA%20Separation%20Log)-Master.PDF - ATC 3 - Attachment 6 - Facility Records (item 26, .PDF, 365 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396512&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%206%20-%20Facility%20Records-Redacted.PDF - ATC 3 - Attachment 7 - Personnel Statements (item 27, .PDF, 128 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396513&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%207%20-%20Personnel%20Statements-Redacted.PDF - ATC 3 - Attachment 8 - Flight Strip (item 28, .PDF, 55 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066196&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%208%20-%20Flight%20Strip-Master.PDF - ATC 3 - Attachment 9 - SOP Excerpts (item 29, .PDF, 699 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066197&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%209%20-%20SOP%20Excerpts-Master.PDF - ATC 3 - Attachment 10 - NOS Charts (item 30, .PDF, 165 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066198&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2010%20-%20NOS%20Charts-Master.PDF - ATC 3 - Attachment 11 - Facility Layout Diagram (item 31, .PDF, 48 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066199&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2011%20-%20Facility%20Layout%20Diagram-Master.PDF - ATC 3 - Attachment 12 - Wake Turbulence Procedures, 7110.65 (item 32, .PDF, 432 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396514&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2012%20-%20Wake%20Turbulence%20Procedures,%207110.65-Redacted.PDF - ATC 3 - Attachment 13 - Pirep Procedures, 7110.65 (item 33, .PDF, 338 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066201&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2013%20-%20Pirep%20Procedures,%207110.65-Master.PDF - ATC 3 - Attachment 14 - Facility Manager's Letter (item 34, .PDF, 41 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396515&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2014%20-%20Facility%20Manager%27s%20Letter-Redacted.PDF - Witness 4 - Group Chairman Factual Report (item 35, .PDF, 450 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396516&FileExtension=.PDF&FileName=Witness%204%20-%20Group%20Chairman%20Factual%20Report-Redacted.PDF - Meteorology 5 - Factual Report of Group Chairman (item 36, .PDF, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396517&FileExtension=.PDF&FileName=Meteorology%205%20-%20Factual%20Report%20of%20Group%20Chairman-Redacted.PDF - Meteorology 5 - Attachment 1 (Attachments A) (item 37, .PDF, 1.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066205&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%201%20%20(Attachments%20A)-Master.PDF - Meteorology 5 - Attachment 2 (Attachments B) (item 38, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066206&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%202%20%20(Attachments%20B)-Master.PDF - Meteorology 5 - Attachment 3 (Attachments C) (item 39, .PDF, 889 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066207&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%203%20%20(Attachments%20C)-Master.PDF - Meteorology 5 - Attachment 4 (Attachments D) (item 40, .PDF, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066208&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%204%20%20(Attachments%20D)-Master.PDF - Meteorology 5 - Attachment 5 - (Attachments E) (item 41, .PDF, 956 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396518&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%205%20-%20(Attachments%20E)-Redacted.PDF - Meteorology 5 - Attachment 6 (Attachments F) (item 42, .PDF, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066210&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%206%20%20(Attachments%20F)-Master.PDF - Meteorology 5 - Attachment 7 (Attachments G) (item 43, .PDF, 719 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396519&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%207%20(Attachments%20G)-Redacted.PDF - Meteorology 5 - Attachment 8 (Attachments H) (item 44, .PDF, 553 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066212&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%208%20%20(Attachments%20H)-Master.PDF - Meteorology 5 - Attachment 9 (Attachments I) (item 45, .PDF, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396520&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%209%20(Attachments%20I)-Redacted.PDF - Meteorology 5 - Attachment 10 (Attachments J) (item 46, .PDF, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066214&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%2010%20(Attachments%20J)-Master.PDF - Meteorology 5 - Attachment 11 (Attachments K) (item 47, .PDF, 82 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396523&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%2011%20(Attachments%20K)-Redacted.PDF - Meteorology 5 - Addendum 1 to Meteorological Factual Report (item 48, .PDF, 52 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396526&FileExtension=.PDF&FileName=Meteorology%205%20-%20Addendum%201%20to%20Meteorological%20Factual%20Report-Redacted.PDF - Meteorology 5 - Addendum 1 to Meteorological Factual Report - Attachment - L (item 49, .PDF, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066217&FileExtension=.PDF&FileName=Meteorology%205%20-%20Addendum%201%20to%20Meteorological%20Factual%20Report%20-%20Attachment%20-%20L-Master.PDF - Meteorology 5 - Addendum II to Meteorological Factual Report - Weather Radar Data (item 50, .PDF, 3.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396529&FileExtension=.PDF&FileName=Meteorology%205%20-%20Addendum%20II%20to%20Meteorological%20Factual%20Report%20-%20Weather%20Radar%20Data-Redacted.PDF - Meteorology 5 - Addendum III to Meteorological Factual Report - Information regarding the exhaust stack plume height of Detroit Edison's Monroe Power Plant exhaust stack plume are contained as Attachments 1-10 (item 51, .PDF, 514 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396530&FileExtension=.PDF&FileName=Meteorology%205%20-%20Addendum%20III%20to%20Meteorological%20Factual%20Report%20-%20Information%20regarding%20the%20exhaust%20stack%20plume%20height%20of%20Detroit%20Edison%27s%20Monroe%20Power%20Plant%20exhaust%20stack%20plume%20are%20contained%20as%20Attachments%201-10-Redacted.PDF - Meteorology 5 - Addendum IV - A mesoscale meteorological review of the COMAIR 3272 crash of 9 January 1997 was prepared by scientists at the National Center for Atmospheric Research at the request of the NTSB (item 52, .PDF, 3.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396531&FileExtension=.PDF&FileName=Meteorology%205%20-%20Addendum%20IV%20-%20A%20mesoscale%20meteorological%20review%20of%20the%20COMAIR%203272%20crash%20of%209%20January%201997%20was%20prepared%20by%20scientists%20at%20the%20National%20Center%20for%20Atmospheric%20Research%20at%20the%20request%20of%20the%20NTSB-Redacted.PDF - Meteorology 5 - Addendum V - Mesoscale Analysis of the COMAIR-3272 Crash of 9 January 1997 (revised) by Ben C. Bernstein, National Center for Atmospheric Research (item 53, .PDF, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396537&FileExtension=.PDF&FileName=Meteorology%205%20-%20Addendum%20V%20-%20Mesoscale%20Analysis%20of%20the%20COMAIR-3272%20Crash%20of%209%20January%201997%20(revised)%20by%20Ben%20C.%20Bernstein,%20National%20Center%20for%20Atmospheric%20Research-Redacted.PDF - Meteorology 5 - Addendum VI - Interview Summaries from the Captain and First Officer of Northeast Flight 272 (item 54, .PDF, 330 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396698&FileExtension=.PDF&FileName=Meteorology%205%20-%20Addendum%20VI%20-%20Interview%20Summaries%20from%20the%20Captain%20and%20First%20Officer%20of%20Northeast%20Flight%20272-Redacted.PDF - Powerplants 8 - Group Chairman Factual Report (item 55, .PDF, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396700&FileExtension=.PDF&FileName=Powerplants%208%20-%20Group%20Chairman%20Factual%20Report-Redacted.PDF - Powerplants 8 - Photo 1. View of wreckage showing center crater and left and right engines and propellers (item 56, .PDF, 39 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066224&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%201.%20%20View%20of%20%20wreckage%20showing%20center%20crater%20and%20left%20and%20right%20engines%20and%20propellers-Master.PDF - Powerplants 8 - Photo 2. Left engine and propeller at crash site (item 57, .PDF, 44 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066225&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%202.%20%20Left%20engine%20and%20propeller%20at%20crash%20site-Master.PDF - Powerplants 8 - Photo 3. Right engine and propeller at crash site (item 58, .PDF, 53 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066226&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%203.%20%20Right%20engine%20and%20propeller%20at%20crash%20site-Master.PDF - Powerplants 8 - Photo 4. Left propeller blade tip fiberglass shell and foam core (item 59, .PDF, 44 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066227&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%204.%20%20Left%20propeller%20blade%20tip%20fiberglass%20shell%20and%20foam%20core-Master.PDF - Powerplants 8 - Photo 5. Left engine low pressure impeller leading edge (item 60, .PDF, 35 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066228&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%205.%20%20Left%20engine%20low%20pressure%20impeller%20leading%20edge-Master.PDF - Powerplants 8 - Photo 6. Right engine low pressure impeller leading edge (item 61, .PDF, 57 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066229&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%206.%20%20Right%20engine%20low%20pressure%20impeller%20leading%20edge-Master.PDF - Powerplants 8 - Photo 7. Left engine power turbine second stage blades (item 62, .PDF, 54 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066230&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%207.%20%20Left%20engine%20power%20turbine%20second%20stage%20blades-Master.PDF - Powerplants 8 - Photo 8. Right engine power turbine second stage blades (item 63, .PDF, 46 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066231&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%208.%20%20Right%20engine%20power%20turbine%20second%20stage%20blades-Master.PDF - Powerplants 8 - Photo 9. Left propeller servo piston (item 64, .PDF, 56 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066232&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%209.%20%20Left%20propeller%20servo%20piston-Master.PDF - Powerplants 8 - Photo 10. Right propeller ball screw showing 1 7/16 inch extension (item 65, .PDF, 34 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066233&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2010.%20%20Right%20propeller%20ball%20screw%20showing%201%207%2F16%20inch%20extension-Master.PDF - Powerplants 8 - Photo 11. Left propeller assembly prepared for shipment to Hamilton Standard (item 66, .PDF, 43 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066234&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2011.%20%20Left%20propeller%20assembly%20prepared%20for%20shipment%20to%20Hamilton%20Standard-Master.PDF - Powerplants 8 - Photo 12. Right propeller assembly prepared for shipment to Hamilton Standard (item 67, .PDF, 43 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066235&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2012.%20%20Right%20propeller%20assembly%20prepared%20for%20shipment%20to%20Hamilton%20Standard-Master.PDF - Powerplants 8 - Photo 13. Left engine prepared for shipment to Pratt & Whitney of Canada (item 68, .PDF, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066236&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2013.%20%20Left%20engine%20prepared%20for%20shipment%20to%20%20Pratt%20%26%20Whitney%20of%20Canada-Master.PDF - Powerplants 8 - Photo 14. Right engine prepared for shipment to Pratt & Whitney of Canada (item 69, .PDF, 48 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066237&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2014.%20%20Right%20engine%20prepared%20for%20shipment%20to%20Pratt%20%26%20Whitney%20of%20Canada-Master.PDF - Powerplants 8 - Photo 15. Left propeller assembly as received at Hamilton Standard (item 70, .PDF, 51 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066238&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2015.%20%20Left%20propeller%20assembly%20as%20received%20at%20Hamilton%20Standard-Master.PDF - Powerplants 8 - Photo 16. Right propeller assembly as received at Hamilton Standard (item 71, .PDF, 46 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066239&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2016.%20%20Right%20propeller%20assembly%20as%20received%20at%20Hamilton%20Standard-Master.PDF - Powerplants 8 - Photo 17. Comparison of the four left propeller blades (item 72, .PDF, 34 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066240&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2017.%20%20Comparison%20of%20the%20four%20left%20propeller%20blades-Master.PDF - Powerplants 8 - Photo 18. Comparison of the four right propeller blades (item 73, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066241&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2018.%20%20Comparison%20of%20the%20four%20right%20propeller%20blades-Master.PDF - Powerplants 8 - Photo 19. Comparison of butt end of right hand propeller blade No. 4 with butt end of an exemplar propeller blade (item 74, .PDF, 34 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066242&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2019.%20%20Comparison%20of%20butt%20end%20of%20right%20hand%20propeller%20blade%20No.%204%20with%20butt%20end%20of%20an%20exemplar%20propeller%20blade-Master.PDF - Powerplants 8 - Photo 20. Butt end of right hand propeller blade No. 4 showing measurement of witness mark on blade pin plateau with protractor to determine propeller blade pitch angle (item 75, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066243&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2020.%20%20Butt%20end%20of%20right%20hand%20propeller%20blade%20No.%204%20showing%20measurement%20of%20witness%20mark%20on%20blade%20pin%20plateau%20with%20protractor%20to%20determine%20propeller%20blade%20pitch%20angle-Master.PDF - Powerplants 8 - Photo 21. Left propeller hub (item 76, .PDF, 37 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066244&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2021.%20%20Left%20propeller%20hub-Master.PDF - Powerplants 8 - Photo 22. Right propeller hub (item 77, .PDF, 36 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066245&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2022.%20%20Right%20propeller%20hub-Master.PDF - Powerplants 8 - Photo 23. Measurement of yoke to mounting pad flange to determine propeller blade pitch angle (item 78, .PDF, 38 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066246&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2023.%20%20Measurement%20of%20yoke%20to%20mounting%20pad%20flange%20to%20determine%20propeller%20blade%20pitch%20angle-Master.PDF - Powerplants 8 - Photo 24. Left propeller servo pistion ball screw internal splines (item 79, .PDF, 43 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066247&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2024.%20%20Left%20propeller%20servo%20pistion%20ball%20screw%20internal%20splines-Master.PDF - Powerplants 8 - Photo 25. Left propeller servo piston quill external and interal splines (item 80, .PDF, 24 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066248&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2025.%20%20Left%20propeller%20servo%20piston%20quill%20external%20and%20interal%20splines-Master.PDF - Powerplants 8 - Photo 26. Righ propeller servo piston sectioned ball screw showing internal splines, and the external splines on the quill and transfer tube (item 81, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066249&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2026.%20%20Righ%20propeller%20servo%20piston%20sectioned%20ball%20screw%20showing%20internal%20splines,%20and%20the%20external%20splines%20on%20the%20quill%20and%20transfer%20tube-Master.PDF - Powerplants 8 - Photo 27. Left propeller blades showing deicing boots (item 82, .PDF, 47 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066250&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2027.%20%20Left%20propeller%20blades%20showing%20deicing%20boots-Master.PDF - Powerplants 8 - Photo 28. Left propeller bulkhead and electrial leads (item 83, .PDF, 44 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066251&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2028.%20%20Left%20propeller%20bulkhead%20and%20electrial%20leads-Master.PDF - Powerplants 8 - Photo 29. Left propeller slip rings (item 84, .PDF, 43 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066252&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2029.%20%20Left%20propeller%20slip%20rings-Master.PDF - Powerplants 8 - Photo 30. Right propeller blades showing damage to leading edge and missing deicing boots (item 85, .PDF, 40 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066253&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2030.%20%20Right%20propeller%20blades%20showing%20damage%20to%20leading%20edge%20and%20missing%20deicing%20boots-Master.PDF - Powerplants 8 - Photo 31. Right propeller bulkhead and electrical leads (item 86, .PDF, 38 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066254&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2031.%20%20Right%20propeller%20bulkhead%20and%20electrical%20leads-Master.PDF - Powerplants 8 - Photo 32. Right propeller ship rings (item 87, .PDF, 34 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066255&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2032.%20%20Right%20propeller%20ship%20rings-Master.PDF - Powerplants 8 - Photo 33. Left engine as received at Pratt & Whitney of Canada (item 88, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066256&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2033.%20%20Left%20engine%20as%20received%20at%20Pratt%20%26%20Whitney%20of%20Canada-Master.PDF - Powerplants 8 - Photo 34. Left engine low pressure impeller (item 89, .PDF, 22 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066257&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2034.%20%20Left%20engine%20low%20pressure%20impeller-Master.PDF - Powerplants 8 - Photo 35. Left engine high pressure impeller (item 90, .PDF, 24 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066258&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2035.%20%20Left%20engine%20high%20pressure%20impeller-Master.PDF - Powerplants 8 - Photo 36. Left engine combustion chamber liner (item 91, .PDF, 36 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066259&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2036.%20%20Left%20engine%20combustion%20chamber%20liner-Master.PDF - Powerplants 8 - Photo 37. Fractured low pressure and power turbine shafts from left engine (item 92, .PDF, 39 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066260&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2037.%20%20Fractured%20low%20pressure%20and%20power%20turbine%20shafts%20from%20left%20engine-Master.PDF - Powerplants 8 - Photo 38. Left engine high pressure turbine disk and blades (item 93, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066261&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2038.%20%20Left%20engine%20high%20pressure%20turbine%20disk%20and%20blades-Master.PDF - Powerplants 8 - Photo 39. Left engine low pressure turbine disk and blades (item 94, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066262&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2039.%20%20Left%20engine%20low%20pressure%20turbine%20disk%20and%20blades-Master.PDF - Powerplants 8 - Photo 40. Left engine first stage power turbine disk and blades (item 95, .PDF, 48 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066263&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2040.%20%20Left%20%20engine%20first%20stage%20power%20turbine%20disk%20and%20blades-Master.PDF - Powerplants 8 - Photo 41. Left engine second stage power turbine disk and blades (item 96, .PDF, 41 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066264&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2041.%20%20Left%20engine%20second%20stage%20power%20turbine%20disk%20and%20blades-Master.PDF - Powerplants 8 - Photo 42. Left engine power turbine second stage vanes showing slag and metal spatter due to sectioning of turbine case (item 97, .PDF, 44 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066265&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2042.%20%20Left%20engine%20power%20turbine%20second%20stage%20vanes%20showing%20slag%20and%20metal%20spatter%20due%20to%20sectioning%20of%20turbine%20case-Master.PDF - Powerplants 8 - Photo 43. Left engine propeller drive shaft (item 98, .PDF, 29 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066266&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2043.%20%20Left%20engine%20propeller%20drive%20shaft-Master.PDF - Powerplants 8 - Photo 44. Close up of left engine reduction gear box showing imprint of bull gear (item 99, .PDF, 53 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066267&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2044.%20%20Close%20up%20of%20left%20engine%20reduction%20gear%20box%20showing%20imprint%20of%20bull%20gear-Master.PDF - Powerplants 8 - Photo 45. Right engine as received at Pratt & Whitney of Canada (item 100, .PDF, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066268&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2045.%20%20Right%20engine%20as%20received%20at%20Pratt%20%26%20Whitney%20of%20Canada-Master.PDF - Powerplants 8 - Photo 46. Right engine low pressure impeller (item 101, .PDF, 49 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066269&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2046.%20%20Right%20engine%20low%20pressure%20impeller-Master.PDF - Powerplants 8 - Photo 47. Right engine high pressure impeller (item 102, .PDF, 25 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066270&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2047.%20%20Right%20engine%20high%20pressure%20impeller-Master.PDF - Powerplants 8 - Photo 48. Right engine combustion chamber liner (item 103, .PDF, 23 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066271&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2048.%20%20Right%20engine%20combustion%20chamber%20liner-Master.PDF - Powerplants 8 - Photo 49. Fractured low pressure and power turbine shafts from right engine (item 104, .PDF, 38 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066272&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2049.%20%20Fractured%20low%20pressure%20and%20power%20turbine%20shafts%20from%20right%20engine-Master.PDF - Powerplants 8 - Photo 50. Right engine high pressure turbine disk and blades (item 105, .PDF, 33 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066273&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2050.%20%20Right%20engine%20high%20pressure%20turbine%20disk%20and%20blades-Master.PDF - Powerplants 8 - Photo 51. Right engine low pressure turbine disk and blades (item 106, .PDF, 37 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066274&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2051.%20%20Right%20engine%20low%20pressure%20turbine%20disk%20and%20blades-Master.PDF - Powerplants 8 - Photo 52. Close up of right engine low pressure turbine blades showing the rainbow color pattern (item 107, .PDF, 47 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066275&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2052.%20%20Close%20up%20of%20right%20engine%20low%20pressure%20turbine%20blades%20showing%20the%20rainbow%20color%20pattern-Master.PDF - Powerplants 8 - Photo 53. Right engine first stage power turbine disk and blades (item 108, .PDF, 42 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066276&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2053.%20%20Right%20engine%20first%20stage%20power%20turbine%20disk%20and%20blades-Master.PDF - Powerplants 8 - Photo 54. Right engine second stage power turbine disk and blades (item 109, .PDF, 36 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066277&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2054.%20%20Right%20engine%20second%20stage%20power%20turbine%20disk%20and%20blades-Master.PDF - Powerplants 8 - Photo 55. Close up of right engine second stage power turbine blades (item 110, .PDF, 41 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066278&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2055.%20%20Close%20up%20of%20right%20engine%20second%20stage%20power%20turbine%20blades-Master.PDF - Powerplants 8 - Photo 56. Close up imprint of bull gear on right engine reduction gear box (item 111, .PDF, 53 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066279&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2056.%20%20Close%20up%20imprint%20of%20bull%20gear%20on%20right%20engine%20reduction%20gear%20box-Master.PDF - Powerplants 8 - Photo 57. Left auxiliary electric pump as received at AeroControlex (item 112, .PDF, 42 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066280&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2057.%20%20Left%20auxiliary%20electric%20pump%20as%20received%20at%20AeroControlex-Master.PDF - Powerplants 8 - Photo 58. Left auxiliary electric pump motor at 12:00 position (item 113, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066281&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2058.%20%20Left%20auxiliary%20electric%20pump%20motor%20at%2012%3A00%20position-Master.PDF - Powerplants 8 - Photo 59. Left auxiliary electric pump motor at 6:00 position (item 114, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066282&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2059.%20%20Left%20auxiliary%20electric%20pump%20motor%20at%206%3A00%20position-Master.PDF - Powerplants 8 - Photo 60. Left auxiliary electric pump housing and gears (item 115, .PDF, 29 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066283&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2060.%20%20Left%20auxiliary%20electric%20pump%20housing%20and%20gears-Master.PDF - Powerplants 8 - Photo 61. Right auxiliary electric pump as received at AeroControlex (item 116, .PDF, 34 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066284&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2061.%20%20Right%20auxiliary%20electric%20pump%20as%20received%20at%20AeroControlex-Master.PDF - Powerplants 8 - Photo 62. Right auxiliary electric pump motor at 12:00 position (item 117, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066285&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2062.%20%20Right%20auxiliary%20electric%20pump%20motor%20at%2012%3A00%20position-Master.PDF - Powerplants 8 - Photo 63. Right auxiliary electric pump motor at 6:00 position (item 118, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066286&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2063.%20%20Right%20auxiliary%20electric%20pump%20motor%20at%206%3A00%20position-Master.PDF - Powerplants 8 - Photo 64. Right auxiliary electric pump housing and gears (item 119, .PDF, 36 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066287&FileExtension=.PDF&FileName=Powerplants%208%20-%20Photo%2064.%20%20Right%20auxiliary%20electric%20pump%20housing%20and%20gears-Master.PDF - Systems 9 - Group Chairman Factual Report (item 120, .PDF, 234 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396719&FileExtension=.PDF&FileName=Systems%209%20-%20Group%20Chairman%20Factual%20Report-Redacted.PDF - Systems 9 - Photo 1. Upper Portion of Ice and Rain Protection Panel (item 121, .PDF, 55 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066289&FileExtension=.PDF&FileName=Systems%209%20-%20Photo%201.%20%20Upper%20Portion%20of%20Ice%20and%20Rain%20Protection%20Panel-Master.PDF - Systems 9 - Photo 2. Disassembly of the Engine Fire Handles (item 122, .PDF, 39 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066290&FileExtension=.PDF&FileName=Systems%209%20-%20Photo%202.%20%20Disassembly%20of%20the%20Engine%20Fire%20Handles-Master.PDF - Systems 9 - Photo 3. View of Left Wing Leading Edge Deice Boot (item 123, .PDF, 66 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066291&FileExtension=.PDF&FileName=Systems%209%20-%20Photo%203.%20%20View%20of%20Left%20Wing%20Leading%20Edge%20Deice%20Boot-Master.PDF - Systems 9 - Photo 4. Filament from Propeller Anti-ice "Normal" Light Bulb (item 124, .PDF, 18 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066292&FileExtension=.PDF&FileName=Systems%209%20-%20Photo%204.%20%20Filament%20from%20Propeller%20Anti-ice%20%22Normal%22%20Light%20Bulb-Master.PDF - Systems 9 - Photo 5. Measurement of Rudder Trim Spool Rod Extension (item 125, .PDF, 47 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066293&FileExtension=.PDF&FileName=Systems%209%20-%20Photo%205.%20%20Measurement%20of%20Rudder%20Trim%20Spool%20Rod%20Extension-Master.PDF - Systems 9 - Photo 6. Circuit Breaker Panel (item 126, .PDF, 64 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066294&FileExtension=.PDF&FileName=Systems%209%20-%20Photo%206.%20%20Circuit%20Breaker%20Panel-Master.PDF - Flight Data Recorder 10 - Group Chairman Factual Report (item 127, .PDF, 278 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396721&FileExtension=.PDF&FileName=Flight%20Data%20Recorder%2010%20-%20Group%20Chairman%20Factual%20Report-Redacted.PDF - Flight Data Recorder 10 - Attachment 1 (Parameter Listing) (item 128, .PDF, 380 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066296&FileExtension=.PDF&FileName=Flight%20Data%20Recorder%2010%20-%20Attachment%201%20(Parameter%20Listing)-Master.PDF - Flight Data Recorder 10 - Attachment 2 (Data Plots) (item 129, .PDF, 251 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066297&FileExtension=.PDF&FileName=Flight%20Data%20Recorder%2010%20-%20Attachment%202%20(Data%20Plots)-Master.PDF - Flight Data Recorder 10 - Addendum 1 to Group Chairman's Factual Report (item 130, .PDF, 134 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396722&FileExtension=.PDF&FileName=Flight%20Data%20Recorder%2010%20-%20Addendum%201%20to%20Group%20Chairman%27s%20Factual%20Report-Redacted.PDF - Flight Data Recorder 10 - Attachment 1 (Tabular Printout) (item 131, .PDF, 1.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066299&FileExtension=.PDF&FileName=Flight%20Data%20Recorder%2010%20-%20Attachment%201%20(Tabular%20Printout)-Master.PDF - Flight Data Recorder 10 - Attachment 2 (Data Plot) (item 132, .PDF, 84 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066300&FileExtension=.PDF&FileName=Flight%20Data%20Recorder%2010%20-%20Attachment%202%20%20(Data%20Plot)-Master.PDF - Flight Data Recorder 10 - Addendum 2 - Evaluation of Flight Control Parameters During Previous Flights, and Tabular Printout of FDR Data for the Last 10 Minutes of the Accident Flight (item 133, .PDF, 5.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40185431&FileExtension=.PDF&FileName=Flight%20Data%20Recorder%2010%20-%20Addendum%202%20-%20Evaluation%20of%20Flight%20Control%20Parameters%20During%20Previous%20Flights,%20and%20Tabular%20Printout%20of%20FDR%20Data%20for%20the%20Last%2010%20Minutes%20of%20the%20Accident%20Flight-Master.PDF - Maintenance Records 11 - Group Chairman Factual Report (item 134, .PDF, 234 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396723&FileExtension=.PDF&FileName=Maintenance%20Records%2011%20-%20Group%20Chairman%20Factual%20Report-Redacted.PDF - Maintenance Records 11 - Attachment 1 - Appendix A (item 135, .PDF, 82 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396726&FileExtension=.PDF&FileName=Maintenance%20Records%2011%20-%20Attachment%201%20-%20Appendix%20A-Redacted.PDF - Maintenance Records 11 - Attachment 2 - Appendix B (item 136, .PDF, 6.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066303&FileExtension=.PDF&FileName=Maintenance%20Records%2011%20-%20Attachment%202%20-%20Appendix%20B-Master.PDF - Cockpit Voice Recorder 12 - Group Chairman Factual Report (item 137, .PDF, 632 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396727&FileExtension=.PDF&FileName=Cockpit%20Voice%20Recorder%2012%20-%20Group%20Chairman%20Factual%20Report-Redacted.PDF - Aircraft Performance 13 - Factual Report of Group Chairman (item 138, .PDF, 5.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396728&FileExtension=.PDF&FileName=Aircraft%20Performance%2013%20-%20Factual%20Report%20of%20Group%20Chairman-Redacted.PDF - Aircraft Performance 13 - Addendum 1 (item 139, .PDF, 9.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40396729&FileExtension=.PDF&FileName=Aircraft%20Performance%2013%20-%20Addendum%201-Redacted.PDF - Animation Video of Accident (item 140, .PDF, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40066307&FileExtension=.PDF&FileName=Animation%20Video%20of%20Accident-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.