# N9978L: Grumman American Avn. AA-1B, registration cancelled 1982-04-15

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 15, 1982
- Status when cancelled: Administratively canceled
- Airframe: [Grumman American Avn. AA-1B](https://openairdocs.org/model/grumman-american-avn-aa-1b) (registry code 3960103)
- Data sheets: [TCDS A11EA](https://openairdocs.org/tcds/A11EA) (OpenAirDocs)
- Serial number: AA1B-0278
- Type of aircraft: Fixed wing single engine
- Certificate issued: February 8, 1978
- Last registry action: April 14, 1982
- Mode S code: ADF01F
- Owners when cancelled: [Aircraft Sales Corp](https://openairdocs.org/faa-owner/AIRCRAFT%20SALES%20CORP), [Hyder Norman E](https://openairdocs.org/faa-owner/HYDER%20NORMAN%20E), [United California Bank](https://openairdocs.org/faa-owner/UNITED%20CALIFORNIA%20BANK), [Farkas Robert J](https://openairdocs.org/faa-owner/FARKAS%20ROBERT%20J), [Franz Robert H](https://openairdocs.org/faa-owner/FRANZ%20ROBERT%20H)
- Location: [Waukegan, IL](https://openairdocs.org/faa-place/IL/Waukegan)
- Owner type: Corporation
- Owner's area on the map: 42.3549° N, 87.8608° W: Placed by OpenAirDocs at the center of ZIP code 60085, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N9978L
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9978L
- Page: https://openairdocs.org/deregistered/N9978L-1982-04-15

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-1B: https://openairdocs.org/model/grumman-american-avn-aa-1b.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 FTW81DQD35](https://openairdocs.org/ntsb/FTW81DQD35), Sep 26, 1981: Grum Amer AA-1B (N9978L), Weed, NM, destroyed

## 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 19810926062999A](https://openairdocs.org/incident/19810926062999A), Sep 26, 1981: Grumav AA1B (N9978L), Weed, NM, Substantial damage. Pilot became lost following road and crashed into raising terrain in mountainous area.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.