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Aircraft record

N556CG2003 Learjet 45

DeregisteredUnclaimedSource: FAA, updated Oct 20, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Mar 29, 2018.

Safety record in brief:No NTSB accidents or incidents since 198227 ADs may apply4 service difficulty reports

Registration
Deregistered
Last based in
San Antonio, TX
owner city / state
Owners
1
since 2013
NTSB events
None
since 1982
ADs may apply
27
confirm with A&P
Service reports
4
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Last registered owner
Gunn Aeronautique INC
Owner type
Corporation
City, state
San Antonio, TX
Certificate issued
Mar 5, 2013
Canceled
Mar 29, 2018
Airworthiness
Standard · Transport
Airworthiness date
Feb 20, 2013

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Learjet
Model
45
Year
2003
Serial number
237
Aircraft type
Fixed wing multi engine
Category
Land
Certification
Type Certificated
Seats
12
Engines
2
Max takeoff weight
20,000 and over lb
Mode S code
A715EE

Engine

Make and model
Honeywell Tfe731-20br
Type
Turbo-fan
Power
3,650 lb thrust

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2013 – 2018Gunn Aeronautique INCSan Antonio, TX

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

Accident history for this model

ADs published since 1998 that may apply (27)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2019-05-07Turbine Engine Compressor SectionApr 25, 2019Engine (TFE731-20BR)Serial numbers per Table 9 of Honeywell Service Bulletin TFE731-72-5256, Revision 0. Only with: Fan disk P/N 3060287-2 with S/N listed in Table 9 of the SB, without "T43374" marked adjacent to the fan disk P/N or S/N.
2015-12-06FuselageJul 21, 2015Airframe (45)Serial numbers per Bombardier Recommended Service Bulletin 40-56-03, Revision 1, and 45-56-3, Revision 1, dated October 15, 2012
2014-13-06Engine ExhaustAug 19, 2014Airframe (45)Certain serial numbers: 45 45-005–45-436; 45 45-2001–45-2132. Only with: Equipped with composite engine fan bypass ducts.
2014-12-52Honeywell International Inc. (Type Certificate Previously Held by AlliedSignal Inc.…Jul 28, 2014Engine (TFE731-20BR)Only with: Engines with LPT2 blades P/N 3075424-1, -2, or -3 installed.
2013-14-07Equipment/FurnishingsAug 26, 2013Airframe (45)Certain serial numbers: 45 45-002–45-380; 45 45-382–45-396; 45 45-398–45-405; 45 45-2001–45-2114; 45 45-2116; 45 45-2118; …
Show all 27 ADs
ADSubjectEffectiveApplies to
2012-16-14Honeywell International Inc. Turbofan EnginesOct 1, 2012Engine (TFE731-20BR)Serial numbers per Table 4 of Honeywell Service Bulletin TFE731-72-5221, Revision 0. Only with: Engines listed in Table 4 of the SB, or with LPT2 rotor assembly P/N 3060608-2, -3, or -5 that had LPT2 rotor blades P/N 3075424-2 replaced between March 2009 and September 2010, or P/N 3075424-3 replaced between July 2010 and September 2010.
2012-08-08Periodic InspectionsMay 29, 2012Airframe (45)
2011-25-03Landing GearJan 23, 2012Airframe (45)
2011-13-10Learjet Inc. Model 45 AirplanesAug 1, 2011Airframe (45)Certain serial numbers: 45 45-005–45-405; 45 45-2001–45-2126
2011-04-08Learjet Inc. Model 45 AirplanesMar 31, 2011Airframe (45)Certain serial numbers: 45 45-2001–45-2114; 45 45-2116–45-2120; 45 45-2122; 45 45-2125; 45 45-2126; 45 45-005–45-380; …
2010-21-19Learjet Inc. Model 45 AirplanesNov 18, 2010Airframe (45)Serial numbers per Bombardier Service Bulletins 40-26-05 and 45-26-9, both Revision 2, dated May 4, 2009
2010-06-13Learjet Inc. Model 45 AirplanesApr 1, 2010Airframe (45)Certain serial numbers: 45 45-005–45-380; 45 45-2001–45-2111
2009-24-22Learjet Inc. Model 45 AirplanesJan 8, 2010Airframe (45)Certain serial numbers: 45 45-005–45-321; 45 45-323–45-332; 45 45-2001–45-2075
2008-01-03Learjet Model 45 AirplanesFeb 14, 2008Airframe (45)Certain serial numbers: 45 45-002–45-302; 45 45-2001–45-2049
2007-17-17Learjet Model 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C Airplanes, and Model…Oct 2, 2007Airframe (45)Serial numbers per Table 1 of this AD: Bombardier Service Bulletins 31-54-2 Rev 1 and 45-54-3 Rev 2; Learjet Service Bulletins 35/36-54-3 and 55-54-3
2007-09-03Learjet Model 45 AirplanesMay 11, 2007Airframe (45)Certain serial numbers: 45 45-005–45-321. Only with: Equipped with an auxiliary power unit (APU).
2006-10-15Learjet Model 45 AirplanesMay 31, 2006Airframe (45)Certain serial numbers: 45 45-005–45-295; 45 45-2001–45-2044
2005-24-13Learjet Model 45 AirplanesDec 20, 2005Airframe (45)Certain serial numbers: 45 45-005–45-273; 45 45-2001–45-2029
2005-13-07Honeywell International Inc. (Formerly AlliedSignal Inc. and Garrett Turbine Engine Co.)…Jul 27, 2005Engine (TFE731-20BR)Serial numbers per Tables 1, 2, and 3 of Honeywell International Inc. SB No. TFE731-72-3682, dated November 26, 2002. Only with: Engines with LP 1st and 2nd stage turbine rotor discs P/Ns 3072069, 3073014, 3072070, 3073113, 3072351, 3071114, 3072542, 3074103, 3073013, 3074105 (all dash numbers) initially installed as new parts before April 1, 1991.
2005-05-15Honeywell International Inc. TFE731-2 and -3 Series Turbofan EnginesApr 18, 2005Engine (TFE731-20BR)Only with: LPT stage 1 disks P/Ns 3072070-All, 3072351-All, 3073013-All, 3073113-All, 3073497-All, and 3074103-All installed.
2003-17-08Learjet Model 45 AirplanesSep 24, 2003Airframe (45)Certain serial numbers: 45 45-005–45-071; 45 45-072–45-114. Only with: S/Ns 45-005 through 45-071 only if modified per Bombardier Service Bulletin 45-32-3.
2003-16-19Learjet Model 45 AirplanesAug 13, 2003Airframe (45)
2003-16-09Learjet Model 45 AirplanesAug 27, 2003Airframe (45)Certain serial numbers: 45 45-005–45-208; 45 45-210–45-222; 45 45-224; 45 45-225; 45 45-227; 45 45-229–45-231
2003-06-51Learjet Model 45 AirplanesApr 28, 2003Airframe (45)Certain serial numbers: 45 45-001–45-232
2002-17-01Learjet Model 45 AirplanesSep 12, 2002Airframe (45)Certain serial numbers: 45 45-005–45-213
2001-03-05Learjet Model 45 AirplanesFeb 20, 2001Airframe (45)Certain serial numbers: 45 45-002–45-004; 45 45-006–45-121; 45 45-124–45-129
2000-08-13Learjet Model 45 AirplanesMay 15, 2000Airframe (45)Only with: Crane Hydro-Aire brake control unit P/N 42-933-2 installed.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (4)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Ice and rain protection · pressure switch · failedAug 29, 2017

    THE FLIGHT CREW REPORTED DURING FLIGHT, DIVERTED DUE TO AN AMBER RT NAC HT FAIL ON THE CAS MASSAGE WITH AN ASSOCIATED AMBER NAC FI DURING FLIGHT. THE LANDING WAS UNEVENTFUL. TROUBLESHOT AND DETERMINED THAT A FAULT WITH THE NACELLE HEAT PRESSURE SWITCH. THE PRESSURE SWITCH WAS REPLACED AND…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Ice and rain protection · probe · failedJan 16, 2015

    FLIGHT CREW REPORTED THAT THE RT PITOT HEAT CB WAS TRIPPED & WOULD NOT RESET. TROUBLESHOOTING REVEALED THAT THE RT PRIMARY PITOT PROBE PN 6634100000-033 SN 214403 WAS DEFECTIVE. THE DEFECTIVE UNIT WAS REMOVED & A NEW PITOT PROBE INSTALLED. FUNCTIONAL CHECKS WERE SATISFACTORY. RVSM CHECKS…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Air conditioning and pressurization · controller · defectiveDec 10, 2013

    THE FLIGHT CREW REPORTED THAT THE LT BLEED AIR SYS FAILED IN FLIGHT. AFTER LANDING THE SYS WAS TROUBLESHOT & THE ENVIRONMENTAL CONTROL SYSTEM CONTROLLER PN 6636108500-3, SN 0330108 WAS FOUND TO BE DEFECTIVE. THE UNIT WAS R & R WITH A REPAIRED ECS. FUNCTIONAL & LEAK CHECKS OF THE BLEED AIR SYS WERE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 4 reports
  • Engine fuel and control · fcu · leakingJun 8, 2013

    THE FLIGHT CREW REPORTED, AFTER SHUTDOWN, THAT FUEL WAS LEAKING FROM THE P3 LIMITER DRAIN LINE. MX TROUBLESHOT AND FOUND THE FUEL CONTROL UNIT WAS DEFECTIVE AND REQUIRED REPLACEMENT, PN 3070800-37, SN 17360.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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