Learjet 40 airworthiness directives

• AD 2023-01-05

  Effective 2023-03-09

  Learjet, Inc., Airplanes

  This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary.

  This AD applies to Learjet, Inc., Model 45 (Learjet 40), Model 45 (Learjet 45), Model 45 (Learjet 70), and Model 45 (Learjet 75) airplanes, certificated in any category, with an original airworthiness certificate or original export certificate of airworthiness issued on or before January 18, 2022.

• AD 2021-23-11

  Effective 2022-01-10

  Learjet Inc. Airplanes

  This AD was prompted by a report of a fuel leak due to a cracked fuel line between the engine fuel control and the engine fuel flow meter.

  This AD applies to Learjet Inc. Model 45 (Learjet 40), Model 45 (Learjet 45), Model 45 (Learjet 70), and Model 45 (Learjet 75) airplanes, serial numbers 45-002 through 45-556 and 45-2001 through 45-2146, certificated in any category.

• AD 2021-23-08

  Effective 2022-01-10 · recurring

  Learjet Inc. Airplanes

  This AD was prompted by reports of corrosion found on the upper surface of the lower center wing mid spar splice plate.

  This AD applies to Learjet Inc. Model 45 (Learjet 40), Model 45 (Learjet 45), Model 45 (Learjet 70), and Model 45 (Learjet 75) airplanes, serial numbers 45-002 through 45-596 and 45-2001 through 45-2146, certificated in any category.

• AD 2015-12-06

  Effective 2015-07-21

  Learjet Inc. Airplanes

  This AD was prompted by reports of non-conforming windshield supports (coupe rails).

  This AD applies to Learjet Inc. Model 45 airplanes, certificated in any category, as identified in Bombardier Recommended Service Bulletin 40-56-03, Revision 1, dated October 15, 2012 (for airplanes having serial numbers (S/Ns) 45-2000 through 45-2120 inclusive, and S/Ns 45-2122 through 45-2130 inclusive); and Bombardi...

• AD 2014-13-06

  Effective 2014-08-19

  Learjet Inc. Airplanes

  This AD was prompted by a report of two cases of premature corrosion found on the structural support flange for the engine thrust reverser.

  This AD applies to Learjet Inc. Model 45 airplanes having serial numbers (S/Ns) 45-005 through 45-436 inclusive, and 45-2001 through 45-2132 inclusive, certificated in any category, that are equipped with composite engine fan bypass ducts.

• AD 2013-14-07

  Effective 2013-08-26

  Learjet Inc. Airplanes

  This AD was prompted by a report that the fire barrier seal on the external baggage door does not seal the surrounding door structure due to incorrect positioning of the barrier.

  This AD applies to Learjet Model 45 airplanes, certificated in any category; serial numbers 45-002 through 45-380 inclusive, 45-382 through 45-396 inclusive, 45-398 through 45-405 inclusive, 45-2001 through 45-2114 inclusive, 45-2116, 45-2118, 45-2120, 45-2122, and 45-2124 through 45-2126 inclusive.

• AD 2012-26-15

  Effective 2013-01-24 · superseded or removed

  Honeywell International Inc. Air Data Pressure Transducers

  This AD was prompted by a report of a pressure measurement error in the pressure transducer used in various air data systems, which translates into air data parameter errors.

  This AD applies to air data pressure transducers, as installed in air data computers (ADC), air data modules (ADM), air data attitude heading reference systems (ADAHRS), and digital air data computers (DADC) having the part numbers and serial numbers identified in Honeywell Alert Service Bulletin ADM/ADC/ADAHRS-34- A01...

• AD 2012-08-08

  Effective 2012-05-29

  Learjet Inc.

  This AD was prompted by changes to the Airworthiness Limitations Section (ALS) of the maintenance manual (MM), which adds life- limits, revises life-limits, or adds inspections not previously identified.

  (1) This AD applies to all Learjet Inc., Model 45 airplanes, certificated in any category. (2) This AD requires revisions to certain operator maintenance documents to include new actions (e.g. inspections). Compliance with these actions is required by 14 CFR 91.403(c). For airplanes that have been previously modified, ...

• AD 2011-25-03

  Effective 2012-01-23

  Learjet Inc. Airplanes

  This AD was prompted by a report of the potential for fatigue cracking of the end cap of the main landing gear (MLG) prior to the published life limitation.

  This AD applies to Learjet Inc. Model 45 airplanes, certificated in any category; all serial numbers.

• AD 2011-13-10

  Effective 2011-08-01 · recurring

  Learjet Inc. Model 45 Airplanes

  This AD applies to Learjet Inc. Model 45 airplanes; certificated in any category; serial numbers 45-005 through 45-405 inclusive, and 45-2001 through 45-2126 inclusive.

• AD 2011-04-08

  Effective 2011-03-31

  Learjet Inc. Model 45 Airplanes

  This AD applies to Learjet Inc. Model 45 airplanes, certificated in any category; having serial numbers identified in paragraphs (c)(1) and (c)(2) of this AD. (1) Serial numbers 45-2001 through 45-2114 inclusive, 45-2116 through 45-2120 inclusive, 45-2122, 45-2125, and 45-2126. (2) Serial numbers 45-005 through 45-380 ...

• AD 2010-21-19

  Effective 2010-11-18

  Learjet Inc. Model 45 Airplanes

  This AD applies to Learjet Inc. Model 45 airplanes, certificated in any category; as identified in Bombardier Service Bulletins 40-26-05 and 45-26-9, both Revision 2, both dated May 4, 2009.

• AD 2010-07-02

  Effective 2010-05-03

  Various Aircraft Equipped With Honeywell Primus II RNZ-850( )/-851( ) Integrated Navigation Units

  This AD applies to various aircraft, certificated in any category, equipped with any Honeywell Primus II RNZ-850( )/-851( ) integrated navigation units (INUs) identified in a service bulletin identified in Table 1 of this AD. The aircraft include, but are not limited to, BAE Systems (Operations) Limited (Jetstream) Mod...

• AD 2010-06-13

  Effective 2010-04-01 · recurring

  Learjet Inc. Model 45 Airplanes

  This AD applies to Learjet Inc. Model 45 airplanes, certificated in any category, serial numbers 45-005 through 45-380 inclusive and 45-2001 through 45-2111 inclusive.

• AD 2009-24-22

  Effective 2010-01-08

  Learjet Inc. Model 45 Airplanes

  This AD applies to Learjet Inc. Model 45 airplanes, certificated in any category, serial numbers 45-005 through 45-321 inclusive, 45-323 through 45-332 inclusive, and 45-2001 through 45- 2075 inclusive.

• AD 2009-11-13

  Effective 2009-06-17 · superseded or removed

  Learjet Model 45 Airplanes

  This AD applies to Learjet Model 45 airplanes, certificated in any category, serial numbers 45-002 through 45-4000 inclusive.

• AD 2008-02-19

  Effective 2008-03-06

  Honeywell International Inc. TFE731-2C, -3B, -3BR, -3C, -3CR, -3D, -3DR, -4R, -5AR, -5BR, -5R, -20R, -20AR, -20BR, -40, -40AR, -40R, and -60 Series Turbofan Engines

  We are issuing this AD to prevent uncontained failure of the HP turbine rotor assembly, which could result in damage to the airplane.

  This AD applies to Honeywell International Inc. (Honeywell) TFE731-2C, -3B, -3BR, -3C, -3CR, -3D, -3DR, -4R, -5AR, -5BR, -5R, - 20R, -20AR, -20BR, -40, -40AR, -40R, and -60 series turbofan engines with certain high pressure (HP) turbine rotor discs part numbers and serial numbers. These engines are installed on, but no...

• AD 2008-01-03

  Effective 2008-02-14

  Learjet Model 45 Airplanes

  This AD applies to Learjet Model 45 airplanes, certificated in any category; serial numbers (S/Ns) 45-002 through 45-302 inclusive, and S/Ns 45-2001 through 45-2049 inclusive.

• AD 2007-17-17

  Effective 2007-10-02

  Learjet Model 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C Airplanes, and Model 45 Airplanes

  We are issuing this AD to prevent penetration of flammable liquids or fire through the engine firewall into the engine pylon, which could lead to fire inside the airplane.

  This AD applies to Learjet Model 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C airplanes, and Model 45 airplanes; certificated in any category; as identified in the service information specified in Table 1 of this AD. Table 1.--Applicable Service Information Learjet airplane model Service Bulletin Revision level ...

• AD 2007-09-03

  Effective 2007-05-11

  Learjet Model 45 Airplanes

  We are issuing this AD to prevent fuel leaking from the fuel shutoff valve of the APU, which could result in an uncontrollable fire and adversely affect the airplane's continued safe flight and landing.

  This AD applies to Learjet Model 45 airplanes, certificated in any category; serial numbers 45-005 through 45-321, equipped with an auxiliary power unit (APU).

• AD 2006-22-05

  Effective 2006-12-01 · superseded or removed

  Various Aircraft Equipped With Honeywell Primus II RNZ-850( )/-851( ) Integrated Navigation Units

  This AD applies to aircraft, certificated in any category, equipped with a Honeywell Primus II RNZ-850( )/-851( ) integrated navigation unit (INU) having a part number identified in Table 1 of this AD; including, but not limited to, BAE Systems (Operations) Limited (Jetstream) Model 4101 airplanes; Bombardier Model BD-...

• AD 2006-19-04

  Effective 2006-10-17

  Honeywell RCZ-833J/K, -851J/K, and -854J Communication (COM) Units, Equipped with XS-852E/F Mode S Transponders; and Honeywell XS-856A/B and -857A Mode S Transponders; Installed on But Not Limited to Certain Transport Category Airplanes

  We are issuing this AD to prevent the transponder of the COM unit from going into standby mode, which could increase the workload on the flightcrew and result in improper functioning of the traffic alert and collision avoidance system.

  This AD applies to the Honeywell parts identified in paragraphs (c)(1) and (c)(2) of this AD, approved under Technical Standard Order TSO-C112, installed on but not limited to Bombardier Model BD-700-1A10 and BD-700-1A11 airplanes; Cessna Model 550 and 560 airplanes; Cessna Model 650 airplanes; Dassault Model Falcon 90...

• AD 2006-10-15

  Effective 2006-05-31

  Learjet Model 45 Airplanes

  This AD applies to Learjet Model 45 airplanes, serial numbers 45-005 through 45-295 inclusive, and 45-2001 through 45-2044 inclusive; certificated in any category.

• AD 2005-24-13

  Effective 2005-12-20

  Learjet Model 45 Airplanes

  We are issuing this AD to prevent chafing between the wire bundle for the alternator on each engine and the hydraulic lines, which could result in a fire in the engine nacelle.

  This AD applies to Learjet Model 45 airplanes, certificated in any category; serial numbers (S/Ns) 45-005 through 45-273 inclusive, and 45-2001 through 45-2029 inclusive.

• AD 2003-17-08

  Effective 2003-09-24 · recurring

  Learjet Model 45 Airplanes

  To prevent moisture contamination and subsequent formation of ice which could cause bending and damage of the squat switch assembly of the nose landing gear (NLG), driving the nose wheel to an uncommanded angle against the force of the steering system, and consequently resulting in the airplane departing the runway at high speeds during landing.

  Model 45 airplanes, certificated in any category; serial numbers (S/N) 45-005 through 45-071 inclusive, that have been modified per Bombardier Service Bulletin 45-32-3; and S/Ns 45-072 through 45-114 inclusive.

• AD 2003-16-19

  Effective 2003-08-13

  Learjet Model 45 Airplanes

  To prevent structural failure of the horizontal stabilizer actuator assembly (HSAA), which could result in possible loss of control of the airplane.

  All Model 45 airplanes, certificated in any category.

• AD 2003-16-09

  Effective 2003-08-27

  Learjet Model 45 Airplanes

  Model 45 airplanes, serial numbers 45-005 through 45-208 inclusive, 45-210 through 45-222 inclusive, 45-224, 45-225, 45-227, and 45-229 through 45-231 inclusive; certificated in any category.

• AD 2003-06-51

  Effective 2003-04-28

  Learjet Model 45 Airplanes

  To prevent structural failure of the horizontal stabilizer actuator assembly, which could result in possible loss of control of the airplane.

  Model 45 airplanes, serial numbers 45-001 through 45-232 inclusive; certificated in any category.

• AD 2003-04-06

  Effective 2003-03-11 · superseded or removed

  Various Aircraft Equipped With Honeywell Primus II RNZ-850/-851 Integrated Navigation Units

  To ensure that the flightcrew has an accurate glideslope deviation indication.

  Aircraft, certificated in any category, equipped with a Honeywell Primus II RNZ-850/-851 Integrated Navigation Unit having a part number identified in Table 1 of this AD; including, but not limited to BAE Systems (Operations) Limited (Jetstream) Model 4101 airplanes; Bombardier BD-700-1A10 series airplanes; Bombardier ...

• AD 2002-17-01

  Effective 2002-09-12

  Learjet Model 45 Airplanes

  To prevent an electrical short circuit between the pilot's and copilot's foot warmers and the composite floor boards, which could result in outgassing of the faceply material of the composite floorboards, and consequent smoke in the cockpit.

  Model 45 airplanes, serial numbers 45-005 through 45-213 inclusive; certificated in any category.

• AD 2001-03-05

  Effective 2001-02-20

  Learjet Model 45 Airplanes

  To prevent metal fragments from breaking off the anti-ice manifold assembly due to fatigue, which could block a duct in the anti-ice system and result in an unannunciated loss of ice protection.

  Model 45 airplanes, certificated in any category, serial numbers 45-002 through 45-004 inclusive, 45-006 through 45- 121 inclusive, and 45-124 through 45-129 inclusive.

• AD 2000-22-04

  Effective 2000-12-06 · superseded or removed

  Learjet Model 45 Series Airplanes

  To prevent the airplane from departing the runway at high speeds during landing due to bending and damage to the squat switch assembly of the nose landing gear.

  Model 45 series airplanes, serial numbers 45-001 through 45-114 inclusive; certificated in any category.

• AD 2000-08-13

  Effective 2000-05-15

  Learjet Model 45 Airplanes

  to detect an uncommanded brake application condition during taxi and takeoff, which could result in a possible wheel/brake fire and/or a high- speed rejected takeoff.

  Model 45 airplanes on which Crane Hydro-Aire brake control unit part number (P/N) 42-933-2 is installed; certificated in any category.

Learjet 40: price, specs and every tail

AD data from the Federal Register and the FAA. Data: Radar, FAA aircraft registry file of 2026-10-09.