# N9934L: Grumman American Avn. AA-1B, registration cancelled 1977-02-01

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 1, 1977
- Status when cancelled: Valid registration
- 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-0234
- Type of aircraft: Fixed wing single engine
- Certificate issued: April 1, 1976
- Mode S code: ADE0B7
- Owner when cancelled: [Plencner Robert M](https://openairdocs.org/faa-owner/PLENCNER%20ROBERT%20M)
- Location: [Cleveland, OH](https://openairdocs.org/faa-place/OH/Cleveland)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N9934L
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9934L
- Page: https://openairdocs.org/deregistered/N9934L-1977-02-01

From the FAA registry file of November 4, 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 CHI76AC076](https://openairdocs.org/ntsb/CHI76AC076), Jul 1, 1976: Amer Avco AA1-B (N9934L), Creston, OH, destroyed, 1 fatal

## 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 19760701038379A](https://openairdocs.org/incident/19760701038379A), Jul 1, 1976: Grumav AA1B (N9934L), Creston, OH, Destroyed. Large key ring in switch,easily displaced. Pilot-inadvertently switched ign off during flight

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