# N6UP: 1981 Swearingen SA227-TT, registration cancelled 2020-10-31

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 31, 2020
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Swearingen SA227-TT](https://openairdocs.org/model/swearingen-sa227-tt) (registry code 8780620)
- Engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01514)
- Data sheets: [TCDS A5SW](https://openairdocs.org/tcds/A5SW) (OpenAirDocs)
- Serial number: TT-441
- Year built: 1981
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: December 30, 1999
- Certificate issued: July 18, 2017
- Last registry action: September 11, 2017
- Mode S code: A7C45D
- Owner when cancelled: [Airco Jn LLC](https://openairdocs.org/faa-owner/AIRCO%20JN%20LLC)
- Location: [Freedom, OK](https://openairdocs.org/faa-place/OK/Freedom)
- Owner type: LLC
- Owner's area on the map: 36.8218° N, 99.2162° W: Placed by OpenAirDocs at the center of ZIP code 73842, within about 11 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N6UP
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6UP
- Page: https://openairdocs.org/deregistered/N6UP-2020-10-31

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 Swearingen SA227-TT: https://openairdocs.org/model/swearingen-sa227-tt.md

## Service difficulty reports (1)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 2013FA0000704](https://openairdocs.org/sdr/2013FA0000704), Nov 17, 2013: STATIC INVERTER. DAMAGED. DURING APPROACH, A PASSENGER NOTICED SPARKS COMING FROM THE AREA OF THE AFT MOUNTED CABIN AC INVERTER. ACCORDING TO PASSENGERS AND CREW, THERE WAS NOTHING PLUGG

## 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 CEN18LA086](https://openairdocs.org/ntsb/CEN18LA086), Jan 19, 2018: Swearingen SA227 TT (N6UP), Houston, TX, substantial damage. Probable cause: The failure of the left starter relay during engine start, which resulted in a loss of electrical and battery power during the flight and led to a forced landing with the nose landing gear not fully…

## 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 20180119009679A](https://openairdocs.org/incident/20180119009679A), Jan 19, 2018: Swearingen SA227-TT (N6UP), Houston, TX, Substantial damage. While aircraft was passing through 18,000 feet, both generators failed and would not reset. Battery power rapidly deteriorated and the crew declared an…

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.