# NTSB ANC77DAA11: Piper PA-18, N4177Z, Bettles, AK, February 26, 1977

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: February 26, 1977
- Place: Bettles, AK · BETTLES, AK
- Location: 66.9073° N, 151.5381° W: Placed by OpenAirDocs: center of Bettles, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=66.9073&lon=-151.5381&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report April 20, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157586
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC77DAA11
- Page: https://openairdocs.org/ntsb/ANC77DAA11

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0543  77/2/26  NR.BETTLES,AK         PIPER PA-18         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 42, 7100
        TIME - 1600                    N4177Z              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 5068 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          BETTLES,AK                  RETURN                      UNKNOWN/NOT REPORTED
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER LEVEL OFF
        FACTOR(S)
           TERRAIN - SNOW-COVERED
        REMARKS- POOR DEPTH PERCEPTION CUES DUE TO FLAT LIGHT CONDITIONS.
```

## Aircraft

- Registration: [N4177Z](https://openairdocs.org/aircraft/N4177Z), registered now, S/N 18-8355, built 1966 (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
- Engines: reciprocating
- Damage: Substantial damage

## 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 19770226005089A](https://openairdocs.org/incident/19770226005089A), Feb 26, 1977: Piper PA18150, Bettles, AK, Substantial damage. Poor depth perception cues due to flat light conditions.

## Other investigations on N4177Z (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 ANC88FA045](https://openairdocs.org/ntsb/ANC88FA045), Apr 17, 1988: Piper PA-18-150 (N4177Z), Palmer, AK, substantial damage, 1 fatal

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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