# Accident 19780125000689A: Grumav AA1B, Concord, CA, January 25, 1978

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 25, 1978
- Place: Concord, CA
- Airport: Buchanan
- Damage: Substantial damage
- Phase of flight: Normal Cruise
- Location: 37.9897° N, 122.0569° W: Placed by OpenAirDocs at BUCHANAN FLD (CCR), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9897&lon=-122.0569&mi=10
- Aircraft: N9952L, a cancelled registration (https://openairdocs.org/deregistered/N9952L-2009-09-18) (OpenAirDocs)
- Registry model: Grumman American Avn. AA-1B (registry code 3960103, https://openairdocs.org/model/grumman-american-avn-aa-1b) (OpenAirDocs)
- Registry engine: Lycoming 0-235 series (registry code 41505, https://openairdocs.org/engine/lycoming-0-235-series) (OpenAirDocs)
- Reported make and model: GRUMAV AA1B
- Fatal injuries: 0
- Pilot flight hours: 101 total, 101 in this make and model, 4 in the last 90 days
- NTSB investigation: [NTSB OAK78FVD13](https://openairdocs.org/ntsb/OAK78FVD13) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19780125000689A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

HIT HILL AFTER DESCENDING BELOW ASSIGNED ALTITUDE WHILE WAITING FPECIAL VFR CLEARANCE.

## The NTSB's investigation of this event (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 OAK78FVD13](https://openairdocs.org/ntsb/OAK78FVD13), Jan 25, 1978: Grumman AA1-B (N9952L), Concord, CA, substantial damage

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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