# NTSB ANC10MA068: Dehavilland DHC-3, N455A, Aleknagik, AK, August 9, 2010

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Class 1 · Major · Final report
- Date: August 9, 2010, 14:45 local (22:45 UTC)
- Place: Aleknagik, AK
- Coordinates: 59.32389, -158.370834 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=59.3239&lon=-158.3708&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120)
- Highest injury: Fatal
- Injuries: 5 fatal, 4 serious
- Status: Completed, report June 2, 2011
- Report: Board-adopted at Board Meeting
- Investigation class: Class 1
- NTSB office: Alaska Regional Office
- Parties: Federal Aviation Administration, Viking Air Limited, Honeywell
- Safety recommendations: Yes
- NTSB case key (mKey): 76920
- NTSB case page: https://www.ntsb.gov/investigations/Pages/ANC10MA068.aspx
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76920/pdf
- Board report AAR1103 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR1103.pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76920
- Page: https://openairdocs.org/ntsb/ANC10MA068

## Probable cause

The pilot's temporary unresponsiveness for reasons that could not be established from the available information. Contributing to the investigation's inability to determine exactly what occurred in the final minutes of the flight was the lack of a cockpit recorder system with the ability to capture audio, images, and parametric data.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Personnel issues](https://openairdocs.org/ntsb-findings/02010000): Personnel issues › Physical · Pilot (probable cause); cases with it: [Dehavilland DHC-3, 1 case](https://openairdocs.org/ntsb-findings/02010000/cases.md?model=2802412), [All aircraft, 15 cases](https://openairdocs.org/ntsb-findings/02010000/cases.md)
- [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Dehavilland DHC-3, 2 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=2802412), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md)
- [Indicating/recording systems: data recorders (flight/maint)](https://openairdocs.org/ntsb-findings/01023130): Aircraft › Aircraft systems · Not specified (probable cause); cases with it: [Dehavilland DHC-3, 1 case](https://openairdocs.org/ntsb-findings/01023130/cases.md?model=2802412), [All aircraft, 17 cases](https://openairdocs.org/ntsb-findings/01023130/cases.md)
- [Equipment/furnishings: emergency locator beacon](https://openairdocs.org/ntsb-findings/01022562): Aircraft › Aircraft systems · Damaged/degraded; cases with it: [Dehavilland DHC-3, 1 case](https://openairdocs.org/ntsb-findings/01022562/cases.md?model=2802412), [All aircraft, 9 cases](https://openairdocs.org/ntsb-findings/01022562/cases.md)
- [Meteorological services: meteo equip coverage/avail](https://openairdocs.org/ntsb-findings/03013010): Environmental issues › Operating environment · Not specified; cases with it: [Dehavilland DHC-3, 1 case](https://openairdocs.org/ntsb-findings/03013010/cases.md?model=2802412), [All aircraft, 3 cases](https://openairdocs.org/ntsb-findings/03013010/cases.md)
- [Equipment/furnishings: emergency equipment](https://openairdocs.org/ntsb-findings/01022560): Aircraft › Aircraft systems · Not specified; cases with it: [Dehavilland DHC-3, 1 case](https://openairdocs.org/ntsb-findings/01022560/cases.md?model=2802412), [All aircraft, 10 cases](https://openairdocs.org/ntsb-findings/01022560/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Enroute: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120) (defining event); cases with it: [Dehavilland DHC-3, 4 cases](https://openairdocs.org/ntsb-events/120/sequence.md?model=2802412), [All aircraft, 1,074 cases](https://openairdocs.org/ntsb-events/120/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-11/03. On August 9, 2010, about 1442 Alaska daylight time, a single-engine, turbine powered, amphibious float-equipped de Havilland DHC-3T airplane, N455A, impacted mountainous, tree-covered terrain about 10 nautical miles (nm) northeast of Aleknagik, Alaska. The airline transport pilot and four passengers received fatal injuries, and four passengers received serious injuries. The airplane sustained substantial damage, including deformation and breaching of the fuselage. The flight was operated by GCI Communication Corp. (GCI), of Anchorage, Alaska, under the provisions of 14 Code of Federal Regulations Part 91. About the time of the accident, meteorological conditions that met the criteria for marginal visual flight rules were reported at Dillingham Airport, Dillingham, Alaska, about 18 nm south of the accident site. No flight plan was filed. The flight departed about 1427 from a GCI-owned private lodge on the shore of Lake Nerka and was en route to a remote sport fishing camp about 52 nm southeast on the Nushagak River.

## 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-11/03. On August 9, 2010, about 1442 Alaska daylight time, a single-engine, turbine powered, amphibious float-equipped de Havilland DHC-3T airplane, N455A, impacted mountainous, tree-covered terrain about 10 nautical miles (nm) northeast of Aleknagik, Alaska. The airline transport pilot and four passengers received fatal injuries, and four passengers received serious injuries. The airplane sustained substantial damage, including deformation and breaching of the fuselage. The flight was operated by GCI Communication Corp. (GCI), of Anchorage, Alaska, under the provisions of 14 Code of Federal Regulations Part 91. About the time of the accident, meteorological conditions that met the criteria for marginal visual flight rules were reported at Dillingham Airport, Dillingham, Alaska, about 18 nm south of the accident site. No flight plan was filed. The flight departed about 1427 from a GCI-owned private lodge on the shore of Lake Nerka and was en route to a remote sport fishing camp about 52 nm southeast on the Nushagak River.

## Aircraft

- Registration: [N455A](https://openairdocs.org/deregistered/N455A-2015-05-06), registration cancelled 2015-05-06, S/N 206, built 1957 (OpenAirDocs)
- Reported make and model: DEHAVILLAND DHC-3
- Registry model: [Dehavilland DHC-3](https://openairdocs.org/model/dehavilland-dhc-3) (registry code 2802412) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 206
- Engines: Honeywell TPE 331 900 horsepower turbo prop
- Damage: Substantial damage
- Flight: Other work use, Part 91
- Operator: General Communication Corporation (GCI)
- Registered owner: Gci Communication Corp
- Airworthiness certificate: Standard, Normal
- Departed: Aleknagik, AK
- Destination: Dillingham, AK
- Flight plan: Company VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 62; injuries: fatal; airline transport; airplane ratings: single-engine sea, multi-engine land, single-engine land, multi-engine sea; instrument ratings: airplane; medical: class 1, with waivers/limitations; seat: left; toxicology performed

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 12 knots, gusting 23
- Visibility: 3 statute miles
- Lowest ceiling: 1,000 ft overcast
- Temperature: 52 °F, dew point 48 °F
- Altimeter: 29.57 inHg
- Observed at: DLG, 18 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 20100809045749A](https://openairdocs.org/incident/20100809045749A), Aug 9, 2010: Dehavilland DHC-3, Aleknagik, AK, Destroyed, 5 fatal. N455A, a single engine, turbine-powred, amphibious float-equipped Dehavilland DHC-3T sustained substantial damage when it impacted mountainous, tree-covered…

## Docket (51 files)

The files NTSB released with the investigation on April 21, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76920. 77.6 MB in all.

- Operations 2 - Factual Report of Group Chairman with 2 Embedded Photos (item 1, .PDF, 2 photos, 756 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345808&FileExtension=.PDF&FileName=Operations%202%20-%20Factual%20Report%20of%20Group%20Chairman%20with%202%20Embedded%20Photos-Master.PDF
- Operations 2 - Attachment 1 - Record of Interviews (item 2, .PDF, 718 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346577&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%201%20-%20Record%20of%20Interviews-Master.PDF
- Operations 2 - Attachment 2 - Record of Statements (item 3, .PDF, 2.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345748&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%202%20-%20Record%20of%20Statements-Redacted.PDF
- Operations 2 - Attachment 3 - SkyConnect Flight Data (8-1 to 8-9 2010) (item 4, .PDF, 296 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40339172&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%203%20-%20SkyConnect%20Flight%20Data%20(8-1%20to%208-9%202010)-Master.PDF
- Operations 2 - Attachment 4 - Pilot Employment/Training Records (ConocoPhillips) (item 5, .PDF, 4.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346585&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%204%20-%20Pilot%20Employment%2FTraining%20Records%20(ConocoPhillips)-Redacted.PDF
- Operations 2 - Attachment 5 - Satellite Map with 1 Embedded Photo (item 6, .PDF, 1 photo, 180 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346586&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%205%20-%20Satellite%20Map%20with%201%20Embedded%20Photo-Master.PDF
- Operations 2 - Attachment 6 - Flight Track Map of PIC (Terry Smith's Flight) 8/4 to 8/9/2010 with 6 Embedded Images (item 7, .PDF, 6 photos, 801 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346658&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%206%20-%20Flight%20Track%20Map%20of%20PIC%20(Terry%20Smith%27s%20Flight)%208%2F4%20to%208%2F9%2F2010%20with%206%20Embedded%20Images-Master.PDF
- Operations 2 - Attachment 7 - Weight and Balance Data (item 8, .PDF, 55 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345752&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%207%20-%20Weight%20and%20Balance%20Data-Master.PDF
- Operations 2 - Attachment 8 - DLG Audio Highlights Aug 7 and 9 (item 9, .PDF, 67 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345796&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%208%20-%20DLG%20Audio%20Highlights%20Aug%207%20and%209-Master.PDF
- Operations 2 - Addendum 1: Interview of the pilot's wife (item 10, .PDF, 126 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40339984&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%201%3A%20Interview%20of%20the%20pilot%27s%20wife-Master.PDF
- Operations 2 - Addendum 2: Additional Interviews and Follow-up Information (item 11, .PDF, 86 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346530&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%202%3A%20Additional%20Interviews%20and%20Follow-up%20Information-Master.PDF
- Operations 2 - Addendum 3: Supplemental Interviews and Information (item 12, .PDF, 118 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346531&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%203%3A%20Supplemental%20Interviews%20and%20Information-Master.PDF
- Operations 2 - Addendum 4: Attachment 2 - Record of Statement - Ron Duncan Supplemental Statement (item 13, .PDF, 10.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40347512&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%204%3A%20Attachment%202%20-%20Record%20of%20Statement%20-%20Ron%20Duncan%20Supplemental%20Statement-Redacted.PDF
- Operations 2 - Addendum 4: Interviews Related to HRM Trips (item 14, .PDF, 39 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40347767&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%204%3A%20%20Interviews%20Related%20to%20HRM%20Trips-Master.PDF
- Meteorology 5 - Factual Report of Group Chairman with 26 Embedded Images (item 15, .PDF, 26 photos, 7.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346460&FileExtension=.PDF&FileName=Meteorology%205%20-%20Factual%20Report%20of%20Group%20Chairman%20with%2026%20Embedded%20Images-Master.PDF
- Meteorology 5 - Attachment 1 - PANW AWSS Record of Performance (item 16, .PDF, 132 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345642&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%201%20-%20PANW%20AWSS%20Record%20of%20Performance-Master.PDF
- Meteorology 5 - Attachment 2 - Weather Camera Images with 52 Embedded Photos (item 17, .PDF, 52 photos, 3.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345650&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%202%20-%20Weather%20Camera%20Images%20with%2052%20Embedded%20Photos-Master.PDF
- Meteorology 5 - Attachment 3 - Witness Statement (item 18, .PDF, 395 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345644&FileExtension=.PDF&FileName=Meteorology%205%20-%20Attachment%203%20-%20Witness%20Statement-Redacted.PDF
- Survival Factors Group Chairman's Factual Report (includes 2 photos) (item 19, .PDF, 2 photos, 635 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346544&FileExtension=.PDF&FileName=Survival%20Factors%20Group%20Chairman%27s%20Factual%20Report%20(includes%202%20photos)-Master.PDF
- Survival Factors Factual Report - Attachment 1 - Passenger Injury Table (item 20, .PDF, 36 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346545&FileExtension=.PDF&FileName=Survival%20Factors%20Factual%20Report%20-%20Attachment%201%20-%20Passenger%20Injury%20Table-Master.PDF
- Survival Factors Factual Report - Attachment 2 - AK DPS Chronology (item 21, .PDF, 3.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346565&FileExtension=.PDF&FileName=Survival%20Factors%20Factual%20Report%20-%20Attachment%202%20-%20AK%20DPS%20Chronology-Redacted.PDF
- Survival Factors Factual Report - Attachment 3 - AK RCC Summary Report (item 22, .PDF, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346566&FileExtension=.PDF&FileName=Survival%20Factors%20Factual%20Report%20-%20Attachment%203%20-%20AK%20RCC%20Summary%20Report-Redacted.PDF
- Survival Factors Factual Report - Attachment 4 - Statement from Sam Egli (item 23, .PDF, 52 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346559&FileExtension=.PDF&FileName=Survival%20Factors%20Factual%20Report%20-%20Attachment%204%20-%20Statement%20from%20Sam%20Egli-Master.PDF
- Survival Factors Factual Report - Attachment 5 - Statement from Dr. Dani Bowman (item 24, .PDF, 45 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346567&FileExtension=.PDF&FileName=Survival%20Factors%20Factual%20Report%20-%20Attachment%205%20-%20Statement%20from%20Dr.%20Dani%20Bowman-Master.PDF
- Survival Factors Factual Report - Attachment 6 - Artex Analysis Report (item 25, .PDF, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346569&FileExtension=.PDF&FileName=Survival%20Factors%20Factual%20Report%20-%20Attachment%206%20-%20Artex%20Analysis%20Report-Redacted.PDF
- Survival Factors Factual Report - Addendum 1 - Satellite phone, survival kit, and passenger briefing card from N455A (item 26, .PDF, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346570&FileExtension=.PDF&FileName=Survival%20Factors%20Factual%20Report%20-%20Addendum%201%20-%20Satellite%20phone,%20survival%20kit,%20and%20passenger%20briefing%20card%20from%20N455A-Master.PDF
- Survival Factors Factual Report - Addendum 2 - Summary of additional comments - Passenger #3 (item 27, .PDF, 25 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346572&FileExtension=.PDF&FileName=Survival%20Factors%20Factual%20Report%20-%20Addendum%202%20-%20Summary%20of%20additional%20comments%20-%20Passenger%20%233-Master.PDF
- Powerplants 8 - Factual Report of Group Chairman with 47 Pictures (item 28, .PDF, 47 photos, 4.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346079&FileExtension=.PDF&FileName=Powerplants%208%20-%20Factual%20Report%20of%20Group%20Chairman%20with%2047%20Pictures-Master.PDF
- Aircraft Performance 13 - Study (item 29, .PDF, 10.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346810&FileExtension=.PDF&FileName=Aircraft%20Performance%2013%20-%20Study-Redacted.PDF
- Materials Laboratory 15 - Factual Report 11-023 (with 25 photos embedded) (item 30, .PDF, 25 photos, 3.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346476&FileExtension=.PDF&FileName=Materials%20Laboratory%2015%20-%20Factual%20Report%2011-023%20(with%2025%20photos%20embedded)-Master.PDF
- Materials Laboratory 15 - Factual Report 10-092 (with 6 Embedded Photos) (item 31, .PDF, 6 photos, 665 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346538&FileExtension=.PDF&FileName=Materials%20Laboratory%2015%20-%20Factual%20Report%2010-092%20(with%206%20Embedded%20Photos)-Master.PDF
- Materials Laboratory 15 - Factual Report 10-095 (with 12 Embedded Photos) (item 32, .PDF, 12 photos, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346540&FileExtension=.PDF&FileName=Materials%20Laboratory%2015%20-%20Factual%20Report%2010-095%20(with%2012%20Embedded%20Photos)-Master.PDF
- Airworthiness Group Chairman's Factual Report With 80 Embedded Photos (item 33, .PDF, 80 photos, 9.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346508&FileExtension=.PDF&FileName=Airworthiness%20Group%20Chairman%27s%20Factual%20Report%20With%2080%20Embedded%20Photos-Master.PDF
- Airworthiness submission of raw flight data from Sky Connect (item 34, .CSV, 142 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345746&FileExtension=.csv&FileName=Airworthiness%20submission%20of%20raw%20flight%20data%20from%20Sky%20Connect-Master.csv
- Airworthiness Factual Report – Addendum 1: Examination of Instrument Gauges with 11 Embedded Images (item 35, .PDF, 11 photos, 821 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345530&FileExtension=.PDF&FileName=Airworthiness%20Factual%20Report%20%E2%80%93%20Addendum%201%3A%20%20Examination%20of%20Instrument%20Gauges%20with%2011%20Embedded%20Images-Master.PDF
- Airworthiness Group Chairman's Factual Addendum for Weight and Balance with 13 embedded photos (item 36, .PDF, 13 photos, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346801&FileExtension=.PDF&FileName=Airworthiness%20Group%20Chairman%27s%20Factual%20Addendum%20for%20Weight%20and%20Balance%20with%2013%20embedded%20photos-Master.PDF
- Airworthiness Group Chairman's Factual Addendum for Maintenance Records With 5 Embedded Photos (item 37, .PDF, 5 photos, 920 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346506&FileExtension=.PDF&FileName=Airworthiness%20Group%20Chairman%27s%20Factual%20Addendum%20for%20Maintenance%20Records%20With%205%20Embedded%20Photos-Master.PDF
- Global Positioning System Data File - Specialist's Factual Report with 2 Embedded Images (item 38, .PDF, 2 photos, 241 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40341116&FileExtension=.PDF&FileName=Global%20Positioning%20System%20Data%20File%20-%20Specialist%27s%20Factual%20Report%20with%202%20Embedded%20Images-Master.PDF
- Global Positioning System Data File - Attachment 1 (CSV Data File) (item 39, .CSV, 18 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40341118&FileExtension=.csv&FileName=Global%20Positioning%20System%20Data%20File%20-%20Attachment%201%20(CSV%20Data%20File)-Master.csv
- Global Positioning System Data File - Attachment 2 (CSV Data File) (item 40, .CSV, 21 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40341120&FileExtension=.csv&FileName=Global%20Positioning%20System%20Data%20File%20-%20Attachment%202%20(CSV%20Data%20File)-Master.csv
- Computer Data - Factual Report with 1 Embedded Image (item 41, .PDF, 1 photo, 61 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346574&FileExtension=.PDF&FileName=Computer%20Data%20-%20Factual%20Report%20with%201%20Embedded%20Image-Master.PDF
- Impact Study and Altitude Alerter Operation with 10 Embedded Images (item 42, .PDF, 10 photos, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346605&FileExtension=.PDF&FileName=Impact%20Study%20and%20Altitude%20Alerter%20Operation%20with%2010%20Embedded%20Images-Master.PDF
- Medical Records Information (item 43, .PDF, 103 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345692&FileExtension=.PDF&FileName=Medical%20Records%20Information-Master.PDF
- Record of Memorandum - Neurological Evaluation (item 44, .PDF, 286 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40348488&FileExtension=.PDF&FileName=Record%20of%20Memorandum%20-%20Neurological%20Evaluation-Redacted.PDF
- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 45, .PDF, 868 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346095&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF
- Record of Conversation (Willis Simmons) and e-mail from FAA Regional Counsel (item 46, .PDF, 71 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345974&FileExtension=.PDF&FileName=Record%20of%20Conversation%20(Willis%20Simmons)%20and%20e-mail%20from%20FAA%20Regional%20Counsel-Redacted.PDF
- Transcript of Radio Communications (item 47, .PDF, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346720&FileExtension=.PDF&FileName=Transcript%20of%20Radio%20Communications-Redacted.PDF
- GCI Communication Corporation Submission (item 48, .PDF, 3 photos, 510 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346852&FileExtension=.PDF&FileName=GCI%20Communication%20Corporation%20Submission-Master.PDF
- Statement of Party Representatives to NTSB Investigation (item 49, .PDF, 303 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346264&FileExtension=.PDF&FileName=Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation-Redacted.PDF
- Return of Parts List (item 50, .PDF, 29 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40350042&FileExtension=.PDF&FileName=Return%20of%20Parts%20List-Redacted.PDF
- Toxicological Report (item 51, .PDF, 110 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40346652&FileExtension=.PDF&FileName=Toxicological%20Report-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.

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