# N744AT: 1983 Cessna 550, registration cancelled 2020-02-12

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 12, 2020
- Status when cancelled: Valid registration
- Airframe: [Cessna 550](https://openairdocs.org/model/cessna-550) (registry code 2076604)
- Engine: [Pratt & Whitney Canada JT15D-4 series](https://openairdocs.org/engine/pratt-whitney-canada-jt15d-4-series) (registry code 52112)
- Data sheets: [TCDS A22CE](https://openairdocs.org/tcds/A22CE) (OpenAirDocs)
- Serial number: 550-0017
- Year built: 1983
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, normal, transport
- Airworthiness date: January 16, 1986
- Certificate issued: July 13, 2004
- Last registry action: May 15, 2017
- Mode S code: AA0178
- Owner when cancelled: [Air Ambulance By Air Trek Inc](https://openairdocs.org/faa-owner/AIR%20AMBULANCE%20BY%20AIR%20TREK%20INC)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.8187° N, 75.5062° W: Placed by OpenAirDocs at the center of ZIP code 19810, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N744AT
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=744AT
- Page: https://openairdocs.org/deregistered/N744AT-2020-02-12

From the FAA registry file of November 3, 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 Cessna 550: https://openairdocs.org/model/cessna-550.md

## Service difficulty reports (2)

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

- [SDR FDIA201905130919](https://openairdocs.org/sdr/FDIA201905130919), May 9, 2019: FUEL SYS. CONTAMINATED. THE RIGHT ENGINE SPOOLED DOWN AFTER AN HOUR IN FLIGHT. DESCENDED TO 8000FT, THE LT ENGINE SPOOLED DOWN AND QUIT. A DEAD STICK LANDING WAS MADE. INVESTIGATION FO
- [SDR FDIA2012FA0000150](https://openairdocs.org/sdr/FDIA2012FA0000150), Mar 12, 2012: LANDING GEAR. MALFUNCTIONED. ACFT DEPARTED FROM BASE ON A PART 91 REPOSITIONING FLIGHT. AFTER DEPARTURE THE LT MAIN GEAR DID NOT FULLY RETRACT BEFORE THE HYD SYS SHUTDOWN CAUSING THE LT MAI

## 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 ERA19IA178](https://openairdocs.org/ntsb/ERA19IA178), May 9, 2019: Cessna 550 (N744AT), Savannah, GA, incident, no damage. Probable cause: The lineman's inadvertent introduction of diesel exhaust fluid (DEF) to the fuel truck fuel system icing inhibitor reservoir, which resulted in fuel contamination and a total loss of engine power.…

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