# NTSB ANC89LA153: Piper PA-18, N13931, Gulkana, AK, August 31, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 31, 1989, 09:00 local (17:00 UTC)
- Place: Gulkana, AK
- Location: 62.2714° N, 145.3822° W: Placed by OpenAirDocs: center of Gulkana, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=62.2714&lon=-145.3822&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 28, 1991
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5250
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC89LA153
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5250/pdf
- Page: https://openairdocs.org/ntsb/ANC89LA153

## Probable cause

THE PILOTS IMPROPER USE OF BRAKES DURING THE LANDING ROLL.

## Sequence of events

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

- Nose over, landing
  - brakes(normal) - improper use of, pilot in command (cause)

## Aircraft

- Registration: [N13931](https://openairdocs.org/aircraft/N13931), registered now, S/N 18-8978, built 1972 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18-8778
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Unknown
- Airworthiness certificate: Standard, Normal
- Airport: Windy Ridge, runway 14, 800 × 25 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 132 total, 132 in this make and model, 96 as pilot in command, 49 in the last 90 days, 28 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: -0 °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).

- [Accident 19890831033299A](https://openairdocs.org/incident/19890831033299A), Aug 31, 1989: Piper PA18150, Gulkana, AK, Substantial damage. Nosed over by hard braking after landing on a gravel bar.

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.