# NTSB ANC90LA127: Piper PA-12, N98994, Kustatan River, AK, July 29, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 29, 1990, 14:30 local (22:30 UTC)
- Place: Kustatan River, AK
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 28, 1992
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5413
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC90LA127
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5413/pdf
- Page: https://openairdocs.org/ntsb/ANC90LA127

## Probable cause

THE PILOT SELECTED UNSUITABLE TERRAIN FOR LANDING. THE TERRAIN WAS A CONTRIBUTING FACTOR.

## Sequence of events

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

- Nose over, landing - roll
  - terrain condition - loose gravel/sandy (contributing factor)
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)

## Analysis

DURING THE LANDING ROLLOUT ON A GRAVEL BAR THE AIRPLANE NOSED OVER.

## Aircraft

- Registration: [N98994](https://openairdocs.org/aircraft/N98994), registered now, S/N 12-352, built 1946 (OpenAirDocs)
- Reported make and model: PIPER PA-12
- Registry model: [Piper PA-12](https://openairdocs.org/model/piper-pa-12) (registry code 7101202) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 12352
- Airframe hours: 2989
- Engines: LYCOMING O-320 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Parnow, David
- Registered owner: David Parow
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 27, 1990, 51 hours before
- Departed: MRI, ANCHORAGE, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 1,258 total, 552 in this make and model, 1,231 as pilot in command, 55 in the last 90 days, 39 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 61 °F, dew point -0 °F
- Altimeter: 30.00 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 19900729029109A](https://openairdocs.org/incident/19900729029109A), Jul 29, 1990: Piper PA12, Kustatan River, AK, Substantial damage. While taxiing to park after landing on gravel bar tried to avoid a hole. Hit brakes and nosed over.

## Other investigations on N98994 (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 ANC80DAG29](https://openairdocs.org/ntsb/ANC80DAG29), Feb 16, 1980: Piper PA-12 (N98994), Skwentna, 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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