# NTSB ANC88DAG01: Cessna 207A, N73503, Atmautluak, AK, December 6, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: December 6, 1987, 17:55 local (21:55 UTC)
- Place: Atmautluak, AK
- Coordinates: 60.81097, -161.850051 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=60.8110&lon=-161.8501&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report December 27, 1988
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4933
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC88DAG01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4933/pdf
- Page: https://openairdocs.org/ntsb/ANC88DAG01

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Hard landing, landing - flare/touchdown
  - proper alignment - not maintained, pilot in command (cause)
  - light condition - dark night (contributing factor)
  - go-around - not performed, pilot in command (cause)
  - object - vehicle (contributing factor)
  - equipment,other - conflicting, driver of vehicle (cause)
  - pull-up - performed, pilot in command
- Nose gear collapsed, landing - flare/touchdown
  - landing gear,nose gear strut - separation

## Analysis

THE AIRCRAFT WAS ON FINAL APPROACH WHEN A VEHICLE APPEARED TO BE ON THE RUNWAY COMING AT THE AIRCRAFT. THE PILOT PULLED THE AIRCRAFT UP OVER THE SNOW MACHINE BUT SETTLED BACK TO THE GROUND ALONGSIDE THE RUNWAY.

## Aircraft

- Registration: [N73503](https://openairdocs.org/aircraft/N73503), registered now, S/N 20700599, built 1980 (OpenAirDocs)
- Reported make and model: CESSNA 207A
- Registry model: [Cessna 207A](https://openairdocs.org/model/cessna-207a) (registry code 2073605) (OpenAirDocs)
- Registry engine: [Continental IO-520-F](https://openairdocs.org/engine/continental-io-520-f) (registry code 17237, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 00599
- Engines: CONTINENTAL IO-520F 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: Ryan Air Service, Inc.
- Registered owner: Ryan Air Service Inc.
- Airworthiness certificate: Standard, Normal
- Departed: BET, BETHEL, AK
- Flight plan: Company VFR
- Airport: ATM, Atmautlauk, runway 33, 2,000 ×  ft, snow

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; commercial; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 2,227 total, 2,227 as pilot in command, 211 in the last 90 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 240° at 17 knots
- Visibility: 10 statute miles
- Temperature: 18 °F
- Altimeter: 29.00 inHg

## 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 19871206071159A](https://openairdocs.org/incident/19871206071159A), Dec 6, 1987: Cessna 207A, Atmautluak, AK, Substantial damage. Tried to land on the unlighted runway but blocked by a snowmobile. Pulled up over it and landed off side runway.

## Other investigations on N73503 (2)

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.

- [NTSB ANC22LA031](https://openairdocs.org/ntsb/ANC22LA031), Apr 16, 2022: Cessna 207A (N73503), Pilot Station, AK, substantial damage. Probable cause: The pilot’s failure to maintain directional control during takeoff in crosswind conditions which resulted in a loss of control and impact with terrain.
- [NTSB ANC81FA031](https://openairdocs.org/ntsb/ANC81FA031), Mar 19, 1981: Cessna 207A (N73503), Teller, AK, substantial damage

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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