# N277TW: 1973 Gates Lear Jet 24D, registration cancelled 2019-09-06

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 6, 2019
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Gates Lear Jet 24D](https://openairdocs.org/model/gates-lear-jet-24d) (registry code 5170311)
- Engine: [GE CJ610-SER series](https://openairdocs.org/engine/ge-cj610-ser-series) (registry code 30006)
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE), [TCDS 1E16](https://openairdocs.org/tcds/1E16) (OpenAirDocs)
- Serial number: 277
- Year built: 1973
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-jet
- Airworthiness: Standard, transport
- Airworthiness date: October 12, 1973
- Certificate issued: January 16, 1996
- Last registry action: March 14, 2016
- Mode S code: A2C23B
- Owner when cancelled: [Sierra American Corporation](https://openairdocs.org/faa-owner/SIERRA%20AMERICAN%20CORPORATION)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.7376° N, 75.6671° W: Placed by OpenAirDocs at the center of ZIP code 19808, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N277TW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=277TW
- Page: https://openairdocs.org/deregistered/N277TW-2019-09-06

From the FAA registry file of November 5, 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 Gates Lear Jet 24D: https://openairdocs.org/model/gates-lear-jet-24d.md

## Service difficulty reports (3)

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

- [SDR HAEA200900211](https://openairdocs.org/sdr/HAEA200900211), Oct 2, 2009: PUMP. FAILED. ON DESCENT, ACFT HYD PRESSURE GAUGE READ ZERO. LANDING GEAR EXTENDED MANUALLY. ACFT LANDED NORMALLY. MX REPLACED NR1 AND NR2 ENGINE DRIVEN HYD PUMP. OPS CHECK G
- [SDR 00016](https://openairdocs.org/sdr/00016), Apr 12, 2002: WARNING LIGHT. FALSE INDICATION. NOSE GEAR UNSAFE LIGHT AFTER TAKEOFF, RETURN TO DEPARTURE AIRPORT, THREE GREEN DOWN AND LOCKED. AIRCRAFT TO BE FERRIED BACK TO ADS, GEAR DOWN AND LOCKED FOR MAI
- [SDR 00010](https://openairdocs.org/sdr/00010), Jan 14, 2002: O-RING. DAMAGED. RIGHT ENGINE FIRE WARNING ILLUMINATED. ENGINE BROUGHT BACK TO FLIGHT IDLE, LIGHT DID NOT GO OUT. SHUT DOWN ENGINE. MECHANIC DISPATCHED TO AIRCRAFT, INSPECTED EN

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