# Learjet 45 (LEARJET 40)

- Type: Aircraft model (FAA registry)
- Registry code: 5170810
- Manufacturer (registry): LEARJET INC
- Model: 45 (LEARJET 40)
- Aircraft type: Fixed wing multi engine
- Category: Airplane
- Engines: 2 · Turbo-fan
- Seats: 9
- Weight class: 20,000 lb and over
- Certification: Type certificated
- Data sheet: [TCDS T00008WI](https://openairdocs.org/tcds/T00008WI) (OpenAirDocs)
- Holder: Learjet Inc.
- Registered aircraft: 0
- Page: https://openairdocs.org/model/learjet-45-learjet-40

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2023-01-05](https://openairdocs.org/ad/2023-01-05): Pneumatic · Learjet 45. Effective Mar 9, 2023
- [AD 2021-23-11](https://openairdocs.org/ad/2021-23-11): Powerplant System · Learjet 45. Effective Jan 10, 2022
- [AD 2021-23-08](https://openairdocs.org/ad/2021-23-08): Wing, Center Box · Learjet 45. Effective Jan 10, 2022
- [AD 2015-12-06](https://openairdocs.org/ad/2015-12-06): Fuselage · Learjet 45. Effective Jul 21, 2015
- [AD 2012-26-15 R1](https://openairdocs.org/ad/2012-26-15-R1): Navigation · Agusta AW139, A318-111, A318-112 and 70 more. Effective Dec 3, 2014
- [AD 2014-13-06](https://openairdocs.org/ad/2014-13-06): Engine Exhaust · Learjet 45. Effective Aug 19, 2014
- [AD 2013-14-07](https://openairdocs.org/ad/2013-14-07): Equipment/Furnishings · Learjet 45. Effective Aug 26, 2013
- [AD 2012-08-08](https://openairdocs.org/ad/2012-08-08): Periodic Inspections · Learjet 45. Effective May 29, 2012
- [AD 2011-25-03](https://openairdocs.org/ad/2011-25-03): Landing Gear · Learjet 45. Effective Jan 23, 2012
- [AD 2011-13-10](https://openairdocs.org/ad/2011-13-10): Powerplant · Learjet 45. Effective Aug 1, 2011
- [AD 2011-04-08](https://openairdocs.org/ad/2011-04-08): Electrical power · Learjet 45. Effective Mar 31, 2011
- [AD 2010-21-19](https://openairdocs.org/ad/2010-21-19): Fire protection · Learjet 45. Effective Nov 18, 2010
- [AD 2010-07-02](https://openairdocs.org/ad/2010-07-02): Integrated navigation units (INUs) · 328 Support Services 328-100, 328-300, Jetstream Model 4101 and 26 more. Effective May 3, 2010
- [AD 2010-06-13](https://openairdocs.org/ad/2010-06-13): Flight controls · Learjet 45. Effective Apr 1, 2010
- [AD 2009-24-22](https://openairdocs.org/ad/2009-24-22): Equipment/Furnishings · Learjet 45. Effective Jan 8, 2010
- [AD 2008-01-03](https://openairdocs.org/ad/2008-01-03): Principal structural elements (PSEs · Learjet 45. Effective Feb 14, 2008
- [AD 2007-17-17](https://openairdocs.org/ad/2007-17-17): Unsealed gaps on the pylon side of the engine firewall · Learjet 31, 31A, 35 and 7 more. Effective Oct 2, 2007
- [AD 2007-09-03](https://openairdocs.org/ad/2007-09-03): Auxiliary power unit (APU) · Learjet 45. Effective May 11, 2007
- [AD 2006-19-04](https://openairdocs.org/ad/2006-19-04): Honeywell COM unit and Mode S transponder · Bombardier BD-700-1A10, BD-700-1A11, 550 and 26 more. Effective Oct 17, 2006
- [AD 2006-10-15](https://openairdocs.org/ad/2006-10-15): Inspection reference numbers (IRNs) · Learjet 45. Effective May 31, 2006
- [AD 2005-24-13](https://openairdocs.org/ad/2005-24-13): Electrical wire bundle for the alternator on the left-hand engine · Learjet 45. Effective Dec 20, 2005
- [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005
- [AD 2003-17-08](https://openairdocs.org/ad/2003-17-08): Nose landing gear (NLG) squat switch camrod · Learjet 45. Effective Sep 24, 2003
- [AD 2003-16-09](https://openairdocs.org/ad/2003-16-09): Main landing gears (MLG) · Learjet 45. Effective Aug 27, 2003
- [AD 2003-16-19](https://openairdocs.org/ad/2003-16-19): Horizontal Stabilizer Actuator Assembly (HSAA) · Learjet 45. Effective Aug 13, 2003
- [AD 2003-06-51](https://openairdocs.org/ad/2003-06-51): Horizontal stabilizer actuator · Learjet 45. Effective Apr 28, 2003
- [AD 2002-17-01](https://openairdocs.org/ad/2002-17-01): Foot Warm circuit breaker · Learjet 45. Effective Sep 12, 2002
- [AD 2001-03-05](https://openairdocs.org/ad/2001-03-05): Anti-ice Manifold Assembly · Learjet 45. Effective Feb 20, 2001
- [AD 2000-08-13](https://openairdocs.org/ad/2000-08-13): Brakes · Learjet 45. Effective May 15, 2000

Historical (superseded or no longer in force):

- [AD 2012-26-15](https://openairdocs.org/ad/2012-26-15) (historical): Navigation · Agusta AW139, A318-111, A318-112 and 71 more. Effective Jan 24, 2013
- [AD 2009-11-13](https://openairdocs.org/ad/2009-11-13) (historical): Hydraulic power · Learjet 45. Effective Jun 17, 2009
- [AD 2006-22-05](https://openairdocs.org/ad/2006-22-05) (historical): Integrated navigation units (INUs) · 328 Support Services 328-100, 328-300, Jetstream Model 4101 and 27 more. Effective Dec 1, 2006
- [AD 2000-22-04](https://openairdocs.org/ad/2000-22-04) (historical): Nose Landing Gear · Learjet 45. Effective Dec 6, 2000

## Information bulletins (advisory) (2)

- [SAIB AIR-21-15R1](https://openairdocs.org/saib/AIR-21-15R1): Navigation System. Issued Sep 16, 2021
- [SAIB AIR-21-15](https://openairdocs.org/saib/AIR-21-15) (historical): Navigation System. Issued Aug 26, 2021

## Registered aircraft

None registered with this model now.

## NTSB investigations

None matched to aircraft with this model.

## FAA accident and incident reports

None matched to aircraft with this model.

## Service difficulty reports (5)

As reported by operators and repair stations, by the model named in the report.

- [SDR OEJA202408050001](https://openairdocs.org/sdr/OEJA202408050001), Aug 3, 2024: FLAP SYSTEM. FAILED. AFTER DEPARTING FROM SSI, I STARTED THE AFTER TAKE OFF CHECKLIST. I PUT TH FLAPS UP AND LOOKED TO VERIFY FLAPS WERE UP AND NOTICED IT WAS STILL AT FLAPS 8 DEGRE
- [SDR 2022FA0000603](https://openairdocs.org/sdr/2022FA0000603), Oct 13, 2022: WINDSHIELD. FAILED. ORIGINAL WINDSHIELD FAILED. HAD !HIS WINDSHIELD INSTANCE. AIRCRAFT FLEW FOR 7.0 HOURS AN L WINDSHIELD FAILED.
- [SDR O9IA202107185571](https://openairdocs.org/sdr/O9IA202107185571), Jul 17, 2021: FCU. FAULTED. IN CRUISE FLIGHT, THE FLIGHT CREW NOTICED THAT THE LH THROTTLE WAS STUCK IN THE MCR POSITION. ALL ATTEMPTS TO REDUCE THE THROTTLE WERE UNSUCCESSFUL. UPON CONSUL
- [SDR 2021FA0000188](https://openairdocs.org/sdr/2021FA0000188), Jun 30, 2021: WINDOW. CRACKED. WEST STAR AVIATION CREATED A WORK ORDER ON JUNE 17, 2021 FOR CUSTOMER. DISCREPANCY LH PILOT WINDSHIELD CRACKED/SHATTERED. WEST STAR AVIATION MOBILE RESPONSE TEA
- [SDR 2021FA0000385](https://openairdocs.org/sdr/2021FA0000385), Feb 16, 2021: NONE. WORN. PILOT REPORTS NOSE LANDING GEAR ACTUATOR IS LOSING FLUID. COMPLIED WITH R&R OF NOSE LANDING GEAR ACTUATOR. OPS TEST OK. AIRCRAFT OK FOR RTS.

## STCs that may be installed (OpenAirDocs) (157, first 50)

Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC ST12518IB](https://openairdocs.org/stc/ST12518IB): Flight Data Recorder (FDR) Installation Structural Provisions. Sky Service F.B.O. Inc
- [STC ST00885LA](https://openairdocs.org/stc/ST00885LA): Installation of fire extinguisher cartridges as replacements for Pacific Scientific fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON, LLC d/b/a MASS Systems
- [STC SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc
- [STC ST04760NY](https://openairdocs.org/stc/ST04760NY): Installation of LAI Windshields. Lee Aerospace
- [STC ST00892LA](https://openairdocs.org/stc/ST00892LA): Installation of Emergency Vision Assurance System (EVAS). VisionSafe LLC
- [STC ST12153AC](https://openairdocs.org/stc/ST12153AC): Installation of the Honeywell RFF-100 5G Bandpass Filter on certain Honeywell AA-300 and KRA 405B equipped aircraft. TES Parts LLC
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC ST12087CH](https://openairdocs.org/stc/ST12087CH): Installation replacement Cabin/Cockpit Handheld Fire Extinguishers. Avcon Industries Inc
- [STC ST01119DE](https://openairdocs.org/stc/ST01119DE): Installation of a Gogo Galileo Half-Duplex (HDX) System. Peregrine
- [STC ST12142IB](https://openairdocs.org/stc/ST12142IB): Installation of of the Honeywell RDR 7000 Weather Radar System. Maga Aviation Manutenção de Aeronaves LTDA
- [STC ST03292CH](https://openairdocs.org/stc/ST03292CH): Activation of an 802.11 a/b/g/n WiFi System. Elliott Aviation Technical Products Development, Inc
- [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc
- [STC ST01117DE](https://openairdocs.org/stc/ST01117DE): Installation of the Gogo ATG C1. Peregrine
- [STC ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC
- [STC ST04159CH](https://openairdocs.org/stc/ST04159CH): Upgrade of Honeywell Primus II Communications Units RCZ-8XX Transponders to support Certification of Automatic Dependent Surveillance -Broadcast (ADS-B) Out. CMD Flight Solutions LLC
- [STC ST03424CH](https://openairdocs.org/stc/ST03424CH): Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders. CMD Flight Solutions LLC
- [STC ST01639WI](https://openairdocs.org/stc/ST01639WI): Removal of the Concorde RG-443 Emergency Battery and replacement with the Concorde RG-145-2 Emergency Battery. Global Aviation Tech LLC
- [STC ST01726WI](https://openairdocs.org/stc/ST01726WI): Installation of a Tailcone Cooling Axial Fan and Ducting. Global Aviation Tech LLC
- [STC ST04575AT](https://openairdocs.org/stc/ST04575AT): Installation of the Rockwell Collins ALT-1000+/ -4000+ with 5G Filtering. Chippewa Aerospace Inc
- [STC ST01651CH](https://openairdocs.org/stc/ST01651CH): Install air ambulance conversion. Spectrum Aeromed LLC dba Spectrum Aeromed
- [STC ST01070DE](https://openairdocs.org/stc/ST01070DE): Installation of the Curtiss-Wright Fortress Flight Data Recorder (with Cockpit Voice Recorder). Peregrine
- [STC ST00098IB](https://openairdocs.org/stc/ST00098IB): Introduction of ADS-B Out. STC Twenty One Limited
- [STC ST01976WI](https://openairdocs.org/stc/ST01976WI): Add Honeywell Synthetic Vision Capability to the DU-875 Display Units, Primus Elite Advanced Features (PEAF). TurboJet Engineering Pty Ltd
- [STC ST04522CH](https://openairdocs.org/stc/ST04522CH): INSTALL UNIVERSAL AVIONICS SYSTEMS CORP (UASC) FMS SOFTWARE VERSION 1002.X INTO EXISTING UASC FMS's. FLIGHTSTAR CORPORATION
- [STC ST01704WI](https://openairdocs.org/stc/ST01704WI): Installation of Crane Aerospace & Electronics SmartStem Wireless Tire Pressure Sensing System. ELDEC Corporation
- [STC ST04177AT](https://openairdocs.org/stc/ST04177AT): Installation of a Talon Aerospace LED Replacement General Purpose Lamps. Aaxico Technical Services Inc
- [STC ST04479CH](https://openairdocs.org/stc/ST04479CH): INSTALL GOGO AVANCE L5 SYSTEM PROVISIONS. FLIGHTSTAR CORPORATION
- [STC ST01270WI-D](https://openairdocs.org/stc/ST01270WI-D): Installation of Honeywell MK V and MK VII EGPWS Runway Awareness and Advisory System (RAAS). This approval is limited to specifically idenitfied aircraft. Duncan Aviation Inc
- [STC ST02635LA](https://openairdocs.org/stc/ST02635LA): Modification to replace the existing Mode S Transponder system with the ACSS NXT-600 Mode S Transponder with ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC SA01452CH](https://openairdocs.org/stc/SA01452CH): Installation of an air ambulance conversion kit. Med-Pac Inc
- [STC ST04439CH](https://openairdocs.org/stc/ST04439CH): The certification for Transmitting Portable Electronic Device (TPED) on Learjet Inc. Model 45 aircraft in accordance with Flightstar Corporation Master Data List 45-001-028, Revision C, dated November 21, 2019, or later FAA approved revision. Flightstar Corporation
- [STC ST01927WI](https://openairdocs.org/stc/ST01927WI): Installation of Mid-Continent MD-302 Standby Attitude Module. Jet City Engineering Pty Ltd
- [STC ST04421CH](https://openairdocs.org/stc/ST04421CH): Installation of a Data link communication system supporting FANS 1/A+ capability. Flightstar Corporation
- [STC ST00934DE](https://openairdocs.org/stc/ST00934DE): Installation of Becker Avionics BXT6553 transponder. Peregrine
- [STC ST01558WI](https://openairdocs.org/stc/ST01558WI): Installation of a Nav Light Switch Modification for Flight Deck Annunciator Dimming. Diamond W. Inc
- [STC ST00909SE](https://openairdocs.org/stc/ST00909SE): Installation of emergency medical stretchers and bases, oxygen and electrical systems. LifePort LLC
- [STC ST10526SC](https://openairdocs.org/stc/ST10526SC): Replacement of Thrust Reverser Control Units. The NORDAM Group LLC
- [STC ST04298NY](https://openairdocs.org/stc/ST04298NY): Installation of the Universal Avionics System Corporation (UASC) UL-801 UNILINK Airborne Data Link. Sky Service F.B.O. Inc
- [STC ST00942DE](https://openairdocs.org/stc/ST00942DE): Demonstration of Aircraft Compatibility to Wireless Fidelity (WiFi) Data Transmissions (Ground & Flight). West Star Aviation, LLC
- [STC ST00790DE](https://openairdocs.org/stc/ST00790DE): Installation of BendixKing CAS 67B Traffic Alert and Collision Avoidance System (TCAS) II Version 7.1. Peregrine
- [STC ST02636LA](https://openairdocs.org/stc/ST02636LA): Modification to upgrade the existing XS-950 Mode S Transponder system to add ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC ST00347BO](https://openairdocs.org/stc/ST00347BO): Modification to upgrade a BendixKing CAS 67A TCAS II system to CAS 67B TCAS II Change 7.1. Pro Star Aviation, LLC
- [STC ST00361BO](https://openairdocs.org/stc/ST00361BO): Installation of a Honeywell Primus II (XS-852) ADS-B Out System. Pro Star Aviation, LLC
- [STC ST00373BO](https://openairdocs.org/stc/ST00373BO): Installation of Rockwell Collins TDR-94D Transponders with ADS-B Out. Pro Star Aviation, LLC
- [STC ST01878WI](https://openairdocs.org/stc/ST01878WI): Installation of replacement components for the cabin management/in-flight entertainment systems on the Learjet Model 45 aircraft (Learjet 70/75 configurations). Learjet Inc
- [STC ST11071SC](https://openairdocs.org/stc/ST11071SC): Demonstration of aircraft critical equipment and antenna systems tolerance of radio frequency interference (RFI) from intentional or spurious transmissions from certain Portable Electronic Devices (PEDs). Liberty Partners Inc
- [STC ST01842WI](https://openairdocs.org/stc/ST01842WI): Installation of Honeywell DU-875 Primus Elite cockpit display units. Learjet Inc
- [STC ST04194CH](https://openairdocs.org/stc/ST04194CH): Install Honeywell Liquid Crystal Display (LCD) Flight Displays. Pentastar Aviation LLC
- [STC ST04030CH](https://openairdocs.org/stc/ST04030CH): Installation of Aircell ATG-2000/4000/5000 High Speed Internet with Wireless Local Area Network (WLAN). Nextant Aerospace
- [STC ST03873NY](https://openairdocs.org/stc/ST03873NY): Installation of Honeywell DU-875 MFD. Aviation Traders Limited (Trading as ATL)

All 157: https://openairdocs.org/model/learjet-45-learjet-40/stcs.md

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Learjet 45](https://openairdocs.org/model/learjet-45): 433 registered aircraft, registry code 5170805
- [Beech 45](https://openairdocs.org/model/beech-45): 2 registered aircraft, registry code 1152002

---
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.