# NTSB ANC78DAG95: Cessna 172L, N7765G, Skwentna, AK, August 6, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 6, 1978
- 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: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 22, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 139844
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC78DAG95
- Page: https://openairdocs.org/ntsb/ANC78DAG95

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3055   78/8/6  NR.SKWENTNA,AK        CESSNA 172L         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 47, 400
        TIME - 1630                    N7765G              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 70 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BULCHULITNA LAKE,AK         LAKE HOOD,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: OTHER
        PROBABLE CAUSE(S)
           POWERPLANT - PROPELLER AND ACCESSORIES: BLADES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
           TERRAIN - OTHER
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
                                  PROP/ENGINE VIBRATION
        REMARKS- A/C FLOAT EQUIPPED.REDUCED PWR EMER LNDG ON LAND IN TREES.
```

## Aircraft

- Registration: [N7765G](https://openairdocs.org/aircraft/N7765G), registered now, S/N 17259465, built 1970 (OpenAirDocs)
- Reported make and model: CESSNA 172L
- Registry model: [Cessna 172L](https://openairdocs.org/model/cessna-172l) (registry code 2072432) (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 19780806032609A](https://openairdocs.org/incident/19780806032609A), Aug 6, 1978: Cessna 172D, Skwentna, AK, Substantial damage. A/c float equipped. Reduced pwr emer lndg on land in trees.

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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