# N9974U: 1978 Grumman American Avn. AA-1C, registration cancelled 2013-05-31

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 31, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Grumman American Avn. AA-1C](https://openairdocs.org/model/grumman-american-avn-aa-1c) (registry code 3960100)
- Engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505)
- Data sheets: [TCDS A11EA](https://openairdocs.org/tcds/A11EA), [TCDS E-223](https://openairdocs.org/tcds/E-223) (OpenAirDocs)
- Serial number: AA1C0170
- Year built: 1978
- Type of aircraft: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Standard, utility
- Airworthiness date: May 22, 1978
- Certificate issued: October 24, 1995
- Last registry action: November 20, 2007
- Mode S code: ADEF9B
- Owner when cancelled: [Brown Thomas E](https://openairdocs.org/faa-owner/BROWN%20THOMAS%20E)
- Location: [Groton, NY](https://openairdocs.org/faa-place/NY/Groton)
- Owner type: Individual
- Owner's area on the map: 42.5837° N, 76.3879° W: Placed by OpenAirDocs at the center of ZIP code 13073, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N9974U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9974U
- Page: https://openairdocs.org/deregistered/N9974U-2013-05-31

From the FAA registry file of November 5, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Grumman American Avn. AA-1C: https://openairdocs.org/model/grumman-american-avn-aa-1c.md

## NTSB investigations (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 NYC96LA079](https://openairdocs.org/ntsb/NYC96LA079), Mar 27, 1996: Grumman American AA-1C (N9974U), Groton, NY, substantial damage. Probable cause: the pilot's inadequate fuel management, and his improper use of the fuel selector valve, which resulted in fuel starvation and the subsequent collision with bails of hay during the forced landing.

## FAA accident and incident reports (1)

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.

- [Accident 19960327005299A](https://openairdocs.org/incident/19960327005299A), Mar 27, 1996: Gulstm AA1C (N9974U), Groton, NY, Substantial damage. Experienced engine failure and landed in a field.

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