# N279AS: 1977 Pilatus B4-PC11AF, registration cancelled 2012-09-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 21, 2012
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Pilatus B4-PC11AF](https://openairdocs.org/model/pilatus-b4-pc11af) (registry code 7090103)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS G25EU](https://openairdocs.org/tcds/G25EU) (OpenAirDocs)
- Serial number: 261
- Year built: 1977
- Type of aircraft: Glider
- Engine type: None
- Airworthiness: Standard, glider
- Airworthiness date: August 26, 1977
- Certificate issued: May 30, 1990
- Last registry action: June 16, 1999
- Mode S code: A2C7FC
- Owner when cancelled: [Butler John](https://openairdocs.org/faa-owner/BUTLER%20JOHN)
- Location: [Seattle, WA](https://openairdocs.org/faa-place/WA/Seattle)
- Owner type: Individual
- Owner's area on the map: 47.6514° N, 122.4063° W: Placed by OpenAirDocs at the center of ZIP code 98199, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N279AS
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=279AS
- Page: https://openairdocs.org/deregistered/N279AS-2012-09-21

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 Pilatus B4-PC11AF: https://openairdocs.org/model/pilatus-b4-pc11af.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 SEA92LA089](https://openairdocs.org/ntsb/SEA92LA089), May 3, 1992: Pilatus B-4 PC 11A (N279AS), Wenatchee, WA, destroyed, 1 fatal. Probable cause: FAILURE BY THE PILOT TO MAINTAIN AIRSPEED, RESULTING IN AIRCRAFT STALL.

## Other aircraft with N279AS

- [Registered now](https://openairdocs.org/aircraft/N279AS): Diamond Aircraft Ind DA20-C1, S/N C0780, built 2025

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