# N999MB: Cessna 421A, registration cancelled 1977-06-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 21, 1977
- Status when cancelled: Valid registration
- Airframe: [Cessna 421A](https://openairdocs.org/model/cessna-421a) (registry code 2076012)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE) (OpenAirDocs)
- Serial number: 421A0144
- Type of aircraft: Fixed wing multi engine
- Certificate issued: December 2, 1976
- Mode S code: ADF527
- Owner when cancelled: [Nob Hill General Inc](https://openairdocs.org/faa-owner/NOB%20HILL%20GENERAL%20INC)
- Location: [Gilroy, CA](https://openairdocs.org/faa-place/CA/Gilroy)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N999MB
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=999MB
- Page: https://openairdocs.org/deregistered/N999MB-1977-06-21

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 Cessna 421A: https://openairdocs.org/model/cessna-421a.md

## 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 19770122007509A](https://openairdocs.org/incident/19770122007509A), Jan 22, 1977: Cessna 421 (N999MB), AZ, Destroyed

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