# N4523P: 1960 Piper PA-23-250, registration cancelled 2012-07-19

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 19, 2012
- Status when cancelled: Revoked, canceled
- Airframe: [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250) (registry code 7102308)
- Engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532)
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10), [TCDS E-295](https://openairdocs.org/tcds/E-295) (OpenAirDocs)
- Serial number: 27-27
- Year built: 1960
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: December 9, 1975
- Last registry action: March 26, 1977
- Mode S code: A57C59
- Owner when cancelled: [Doerr Aviation Inc](https://openairdocs.org/faa-owner/DOERR%20AVIATION%20INC)
- Location: [San Antonio, TX](https://openairdocs.org/faa-place/TX/San%20Antonio)
- Owner type: Corporation
- Owner's area on the map: 29.5387° N, 98.4913° W: Placed by OpenAirDocs at the center of ZIP code 78216, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4523P
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4523P
- Page: https://openairdocs.org/deregistered/N4523P-2012-07-19

From the FAA registry file of October 28, 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 Piper PA-23-250: https://openairdocs.org/model/piper-pa-23-250.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 UNK65X1447](https://openairdocs.org/ntsb/UNK65X1447), Feb 21, 1965: Piper PA23 (N4523P), San Antonio, TX, substantial damage

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