# NTSB ANC72FAG24: Cessna 150H, N22873, Skwentna, AK, August 14, 1971

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: August 14, 1971
- Place: Skwentna, AK · SKWENTNA, AK
- Location: 61.9903° N, 151.3978° W: Placed by OpenAirDocs: center of Skwentna, AK, within about 12 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=61.9903&lon=-151.3978&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report March 31, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162794
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC72FAG24
- Page: https://openairdocs.org/ntsb/ANC72FAG24

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3019  71/8/14    SKWENTNA,ALAS       CESSNA 150H         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1630                    N22873              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  AGE 37, 309 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            117 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ANCHORAGE,ALAS              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - WET,SOFT GROUND
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NR 4 INTK VALVE FAILED,PLT LNDD ACFT ON SOFT TUNDRA.
```

## Aircraft

- Registration: [N22873](https://openairdocs.org/deregistered/N22873-1991-11-21), registration cancelled 1991-11-21, S/N 15068580 (OpenAirDocs)
- Reported make and model: CESSNA 150H
- Registry model: [Cessna 150H](https://openairdocs.org/model/cessna-150h) (registry code 2071818) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N22873 (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 ANC71DAG75](https://openairdocs.org/ntsb/ANC71DAG75), Mar 26, 1971: Cessna 150H (N22873), Anchorage, 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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