# NTSB ANC86IA033: Cessna 207, N9943M, Barrow, AK, March 10, 1986

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: March 10, 1986, 11:27 local (15:27 UTC)
- Place: Barrow, AK
- Coordinates: 71.280235, -156.779571 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=71.2802&lon=-156.7796&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 8 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4612
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86IA033
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4612/pdf
- Page: https://openairdocs.org/ntsb/ANC86IA033

## Analysis

ENGINE FAILED AND SEIZED IN FLIGHT. A FORCED LANDING AND THE SNOW COVERED TUNDRA FOLLOWED WITH NO INJURIES & MINOR DAMAGE TO THE AIRPLANE. ENGINE TEARDOWN AND EXAM REVEALED #3 CYLINDER WRIST PIN BROKEN.

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, cruise - normal
  - engine assembly,other - failure,total (cause)
- Forced landing, descent - emergency

## Aircraft

- Registration: [N9943M](https://openairdocs.org/aircraft/N9943M), registered now, S/N 20700757, built 1982 (OpenAirDocs)
- Reported make and model: CESSNA 207
- 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: 20700757
- Airframe hours: 2540
- Engines: CONTINENTAL IO-520-F 300 horsepower reciprocating
- Damage: Minor damage
- Flight: Part 135
- Registered owner: Edward J. Schollemberg
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, February 20, 1986, 47 hours before
- Departed: AIN, WAINWRIGHT, AK
- Destination: BRW, BARROW, AK
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; flight engineer, airline transport, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 5,000 total, 2,000 in this make and model, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 25 °F, dew point -0 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Incident 19860310041549I](https://openairdocs.org/incident/19860310041549I), Mar 10, 1986: Cessna 207A, Barrow, AK, Minor damage. Loss of oil pressure, rise in temperature, engine seized. Landed on a beach. NR3 wrist pin broken.

## Other investigations on N9943M (1)

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 ANC85IA083](https://openairdocs.org/ntsb/ANC85IA083), May 13, 1985: Cessna 207A (N9943M), Cape Simpson, AK, incident, minor 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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