# N78904: 1961 Mooney M20A, registration cancelled 2017-11-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 21, 2017
- Status when cancelled: Revoked, canceled
- Airframe: [Mooney M20A](https://openairdocs.org/model/mooney-m20a) (registry code 5870204)
- Engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514)
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3) (OpenAirDocs)
- Serial number: 1918
- Year built: 1961
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Last registry action: January 14, 1977
- Mode S code: AAB46A
- Owner when cancelled: [Aztec Neon](https://openairdocs.org/faa-owner/AZTEC%20NEON)
- Location: [El Cajon, CA](https://openairdocs.org/faa-place/CA/El%20Cajon)
- Owner type: Corporation
- Owner's area on the map: 32.7956° N, 116.9698° W: Placed by OpenAirDocs at the center of ZIP code 92020, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N78904
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=78904
- Page: https://openairdocs.org/deregistered/N78904-2017-11-21

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 Mooney M20A: https://openairdocs.org/model/mooney-m20a.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 UNK64X2741](https://openairdocs.org/ntsb/UNK64X2741), Jul 9, 1964: Mooney MK-20B (N78904), San Clemente, CA, destroyed, 3 fatal

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