# NTSB ANC82DA092: Piper PA-18, N3771P, Near Glennallen, AK, September 17, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: September 17, 1982, 15:00 local (23:00 UTC)
- Place: Near Glennallen, AK
- Coordinates: 62.100463, -145.529495 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=62.1005&lon=-145.5295&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 17, 1983
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 71865
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC82DA092
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71865/pdf
- Page: https://openairdocs.org/ntsb/ANC82DA092

## Sequence of events

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

- Nose over, landing - roll
  - planned approach - inadequate, pilot in command (cause)
  - weather condition - tailwind (contributing factor)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - improper, pilot in command (cause)

## Analysis

THE AIRCRAFT WAS FLIPPED OVER BY GUSTY TAILWIND AFTER THE PILOT LANDED DOWNWIND. NO LOGICAL REASON OFFERED FOR DOWNWIND LANDING.

## Aircraft

- Registration: [N3771P](https://openairdocs.org/aircraft/N3771P), registered now, S/N 18-4655, built 1955 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18A 150](https://openairdocs.org/model/piper-pa-18a-150) (registry code 7101837) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18-4655
- Airframe hours: 2034
- Engines: LYCOMING O-320 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Gerald L. Sibley
- Registered owner: Gerald L. Sibley
- Departed: CZO, CHISTOCHINA, AK
- Destination: (REMOTE AREA), AK
- Flight plan: Unknown
- Airport: 12

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; private; airplane ratings: single-engine land; medical: unknown, invalid medical for flight; flight hours: 3,800 total, 3,724 in this make and model, 3,700 as pilot in command, 60 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 60° at 15 knots
- Visibility: 60 statute miles
- Temperature: 113 °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 19820917049879A](https://openairdocs.org/incident/19820917049879A), Sep 17, 1982: Piper PA18, Glennallen, AK, Substantial damage. Pilot landed floatplane in a river in a downwind direction. Airplane flipped over. No current biennial or medical.

## Other investigations on N3771P (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 ANC79DAG48](https://openairdocs.org/ntsb/ANC79DAG48), May 6, 1979: Piper PA-18 (N3771P), Kodiak, 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.

---
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.