# NTSB OAK66D0178: Piper PA-22, N3954P, Mammoth Lake, CA, December 31, 1965

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: December 31, 1965
- Place: Mammoth Lake, CA · MAMMOTH LAKE, CA
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report February 15, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 174698
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK66D0178
- Page: https://openairdocs.org/ntsb/OAK66D0178

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3775  65/12/31   MAMMOTH LAKE CALI   PIPER PA-22         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 26, 412
        TIME - 1215                    N3954P              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 168 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  ADVERSE/UNFAVORABLE WEATHER
```

## Aircraft

- Registration: [N3954P](https://openairdocs.org/aircraft/N3954P), registered now, S/N 22-3631, built 1956 (OpenAirDocs)
- Reported make and model: PIPER PA-22
- Registry model: [Piper PA-22-150](https://openairdocs.org/model/piper-pa-22-150) (registry code 7102210) (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

## Other investigations on N3954P (2)

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 FTW77FPA18](https://openairdocs.org/ntsb/FTW77FPA18), Jul 8, 1977: Piper PA-22 (N3954P), Hebron, TX, substantial damage
- [NTSB LAX71FUQ17](https://openairdocs.org/ntsb/LAX71FUQ17), Sep 21, 1970: Piper PA-22 (N3954P), Lancaster, CA, 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.