# NTSB OAK78DVG49: Grum Amer AA5B, N74494, Angwin, CA, June 12, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 12, 1978
- Place: Angwin, CA · ANGWIN, CA
- Location: 38.5779° N, 122.4512° W: Placed by OpenAirDocs: center of Angwin, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.5779&lon=-122.4512&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 15, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 141414
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK78DVG49
- Page: https://openairdocs.org/ntsb/OAK78DVG49

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1754  78/6/12    ANGWIN,CA           GRUM AMER AA5B      CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 34, 23 TOTAL
        TIME - 2245                    N74494              PX-  0  0  0  TRAINING                  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - ANGWIN
        DEPARTURE POINT             INTENDED DESTINATION
          NAPA,CA                     LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: OBJECT                                    LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  PROP/ENGINE VIBRATION
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- PLT REPORTED ENG MISSING,RUNNING ROUGH.LNDD ADJ TO UNLIT RWY,HIT WINDSOCK.
```

## Aircraft

- Registration: [N74494](https://openairdocs.org/deregistered/N74494-1983-05-03), registration cancelled 1983-05-03, S/N AA5B-0247 (OpenAirDocs)
- Reported make and model: GRUM AMER AA5B
- Registry model: [Grumman American Avn. AA-5B](https://openairdocs.org/model/grumman-american-avn-aa-5b) (registry code 3960105) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Angwin

## 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 19780612032559A](https://openairdocs.org/incident/19780612032559A), Jun 12, 1978: Gulstm AA5, Angwin, CA, Substantial damage. Plt reported eng missing,running rough. Lndd adj to unlit rwy,hit sock.

## Other investigations on N74494 (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 LAX81FUA02](https://openairdocs.org/ntsb/LAX81FUA02), Nov 29, 1980: Grumman AA-5B (N74494), Torrance, CA, destroyed

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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