# N3525X: 1966 Mooney M20F, registration cancelled 2012-10-04

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 4, 2012
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Mooney M20F](https://openairdocs.org/model/mooney-m20f) (registry code 5870214)
- Engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515)
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3), [TCDS 1E10](https://openairdocs.org/tcds/1E10) (OpenAirDocs)
- Serial number: 670062
- Year built: 1966
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: September 29, 1966
- Certificate issued: May 12, 1978
- Last registry action: June 24, 1989
- Mode S code: A3EF58
- Owner when cancelled: [Stephan William](https://openairdocs.org/faa-owner/STEPHAN%20WILLIAM)
- Location: [Bellevue, WA](https://openairdocs.org/faa-place/WA/Bellevue)
- Owner type: Individual
- Owner's area on the map: 47.6183° N, 122.2053° W: Placed by OpenAirDocs at the center of ZIP code 98004, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N3525X
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3525X
- Page: https://openairdocs.org/deregistered/N3525X-2012-10-04

From the FAA registry file of October 29, 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 M20F: https://openairdocs.org/model/mooney-m20f.md

## NTSB investigations (3)

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 SEA83LA195](https://openairdocs.org/ntsb/SEA83LA195), Sep 3, 1983: Mooney M20-F (N3525X), Seattle, WA, destroyed
- [NTSB OAK72DVM22](https://openairdocs.org/ntsb/OAK72DVM22), Jan 24, 1972: Mooney M21F (N3525X), Salinas, CA, substantial damage
- [NTSB OAK71DVG80](https://openairdocs.org/ntsb/OAK71DVG80), May 16, 1971: Mooney M20F (N3525X), Pope Valley, CA, substantial damage

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