# N56T: 1977 Cromwell PITTS S-1S, registration cancelled 2012-11-13

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 13, 2012
- Status when cancelled: Revoked, pending cancellation
- Airframe: [Cromwell PITTS S-1S](https://openairdocs.org/model/cromwell-pitts-s-1s) (registry code 7220650)
- Engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511)
- Serial number: 532-42-45391
- Year built: 1977
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 12, 1980
- Certificate issued: November 8, 1977
- Last registry action: November 12, 1977
- Mode S code: A7263A
- Owner when cancelled: [Cromwell Stephen B](https://openairdocs.org/faa-owner/CROMWELL%20STEPHEN%20B)
- Location: [Olympia, WA](https://openairdocs.org/faa-place/WA/Olympia)
- Owner type: Individual
- Owner's area on the map: 47.1083° N, 122.8706° W: Placed by OpenAirDocs at the center of ZIP code 98506, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N56T
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=56T
- Page: https://openairdocs.org/deregistered/N56T-2012-11-13

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 Cromwell PITTS S-1S: https://openairdocs.org/model/cromwell-pitts-s-1s.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 SEA83FA045](https://openairdocs.org/ntsb/SEA83FA045), Jan 24, 1983: Cromwell/Pitts S-1S (N56T), Athol, ID, destroyed, 1 fatal

## 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 19830123001549A](https://openairdocs.org/incident/19830123001549A), Jan 23, 1983: Amtrpt PITTSSPECS1 (N56T), Athol, ID, Destroyed. Entered a flat, inverted spin after a hammerhead stall. Waited too long in closing throttle to effect a recovery.

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