LEARJET INC 31A

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered LEARJET INC 31A aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

02 /  NTSB Records

Events involving LEARJET INC 31A aircraft

8 event(s) on file. Showing the most recent 8.

• Mar 10, 2018

  N500MP

  Mount Pleasant, Michigan

  NTSB Docket →

• Mar 9, 2004

  N99AT

  Peach Springs, Arizona

  NTSB Docket →

• May 18, 2003

  N2SM

  Houston, Texas Minor

  NTSB Docket →

• May 31, 1989

  N501RS

  WADING RIVER, New York

  NTSB Docket →

• Feb 18, 1980

  N71AL

  HOUMA, Louisiana

  NTSB Docket →

• Aug 6, 1979

  N724SA

  READING, Pennsylvania

  NTSB Docket →

• Feb 28, 1975

  N500MP

  CHICAGO, Illinois

  NTSB Docket →

• Jun 26, 1972

  N25BB

  NEW CUMBERLAND, Pennsylvania Fatal

  NTSB Docket →

03 /  Airworthiness Directives

FAA directives applicable to LEARJET INC 31A

36 directive(s) on file. Showing the most recent 25 · 11 more in the Federal Register.

• Apr 24, 2019

  Airworthiness Directives; Northrop Grumman LITEF GmbH LCR-100 Attitude and Heading Reference System Units

  We are adopting a new airworthiness directive (AD) for Northrop Grumman LITEF GmbH LCR-100 Attitude and Heading Reference System (AHRS) units installed on various aircraft. This AD requires removing certain LCR-100 AHRS units from service. This AD was prompted by test results showing loss of or invalid data. The actio…

  Atlas AD → Federal Register ↗

• Sep 18, 2018

  Airworthiness Directives; Learjet, Inc. Airplanes

  We are adopting a new airworthiness directive (AD) for certain Learjet, Inc. Models 28, 29, 31, 31A, 35, 35A, 36, 36A, 55, 55B, 55C, and 60 airplanes. This AD was prompted by fatigue cracks initiating in the flap support structure due to repetitive flap loads, which has caused flap nose roller support bracket failure.…

  Atlas AD → Federal Register ↗

• May 8, 2018

  Airworthiness Directives; Learjet, Inc. Airplanes

  We propose to adopt a new airworthiness directive (AD) for certain Learjet, Inc. Models 28, 29, 31, 31A, 35, 35A, 36, 36A, 55, 55B, 55C, and 60 airplanes. This proposed AD was prompted by fatigue cracks initiating in the flap support structure due to repetitive flap loads, which has caused flap nose roller support bra…

  Atlas AD → Federal Register ↗

• Jun 5, 2017

  Airworthiness Directives; Northrop Grumman LITEF GmbH LCR-100 Attitude and Heading Reference System Units

  We propose to adopt a new airworthiness directive (AD) for Northrop Grumman LITEF GmbH LCR-100 Attitude and Heading Reference System (AHRS) units installed on various aircraft. This proposed AD would require removing certain LCR-100 AHRS units from service. This proposed AD is prompted by test results showing loss of…

  Atlas AD → Federal Register ↗

• Nov 18, 2016

  Airworthiness Directives; Learjet Inc. Airplanes

  We propose to adopt a new airworthiness directive (AD) for certain Learjet Inc. Model 36A airplanes. This proposed AD was prompted by a report indicating that an aileron cable failed on an airplane during a tension check and a determination that Model 36A airplanes were not included in AD 2005-13-36, which addresses t…

  Atlas AD → Federal Register ↗

• Mar 17, 2010

  Airworthiness Directives; Honeywell International Inc. TFE731 Series Turbofan Engines

  The FAA is adopting a new airworthiness directive (AD) for Honeywell International Inc. TFE731 series turbofan engines with certain second stage low-pressure compressor rotor (LPCR) discs and/or certain third stage LPCR discs installed. This AD requires removing from service certain second stage LPCR discs and/or cert…

  Atlas AD → Federal Register ↗

• Dec 11, 2009

  Airworthiness Directives; Honeywell International Inc. TFE731 Series Turbofan Engines

  This supplemental NPRM revises an earlier proposed airworthiness directive (AD), for Honeywell International Inc. TFE731 series turbofan engines with certain second stage low-pressure compressor rotor (LPCR) discs and/or certain third stage LPCR discs installed. That proposed AD would have required removing from servi…

  Atlas AD → Federal Register ↗

• Apr 13, 2009

  Airworthiness Directives; Honeywell International Inc. TFE731 Series Turbofan Engines

  The FAA proposes to adopt a new airworthiness directive (AD) for Honeywell International Inc. TFE731 series turbofan engines with certain second and third stage low-pressure compressor rotor (LPCR) discs installed. This proposed AD would require removing from service, certain second and third stage LPCR discs, part nu…

  Atlas AD → Federal Register ↗

• Aug 28, 2007

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

  The FAA is adopting a new airworthiness directive (AD) for certain Learjet Model 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C airplanes, and Model 45 airplanes. This AD requires inspecting for unsealed gaps on the pylon side of the engine firewall and cleaning/ sealing any unsealed gap; and, for certain airplan…

  Atlas AD → Federal Register ↗

• Apr 26, 2007

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

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Learjet Model 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C airplanes, and Model 45 airplanes. This proposed AD would require inspecting for unsealed gaps on the pylon side of the engine firewall and cleaning/sealing any unsealed gap; and,…

  Atlas AD → Federal Register ↗

• Feb 16, 2007

  Airworthiness Directives; Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C Airplanes

  The FAA is adopting a new airworthiness directive (AD) for certain Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C- 21A), 36, 36A, 55, 55B, and 55C airplanes. This AD requires modifying the left- and right-hand standby fuel pump switches…

  Atlas AD → Federal Register ↗

• Aug 16, 2006

  Airworthiness Directives; Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C Airplanes

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C airplanes. This proposed AD would require modifying the left- and right-hand standby…

  Atlas AD → Federal Register ↗

• Jul 5, 2005

  Airworthiness Directives; Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), and 36 Airplanes

  The FAA is adopting a new airworthiness directive (AD) for certain Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C- 21A), and 36 airplanes. This AD requires a one-time inspection of the center ball of the aileron control cable or cables…

  Atlas AD → Federal Register ↗

• Jun 7, 2005

  Airworthiness Directives; Precise Flight, Inc. Models SVS I and SVS IA Standby Vacuum Systems

  The FAA adopts a new airworthiness directive (AD) for all airplanes equipped with Precise Flight, Inc. (Precise Flight) Models SVS I and SVS IA standby vacuum systems (SVS) installed under certain supplemental type certificates or through field approval. This AD requires you to replace the airplane flight manual suppl…

  Atlas AD → Federal Register ↗

• Apr 6, 2005

  Airworthiness Directives; Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), and 36 Airplanes

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), and 36 airplanes. This proposed AD would require a one-time inspection of the center ball of the aileron contr…

  Atlas AD → Federal Register ↗

• Mar 4, 2005

  Airworthiness Directives; Precise Flight, Inc. Models SVS I and SVS IA Standby Vacuum Systems

  The FAA proposes to adopt a new airworthiness directive (AD) for all airplanes equipped with Precise Flight, Inc. (Precise Flight) Models SVS I and SVS IA standby vacuum systems (SVS) installed under certain supplemental type certificates or through field approval. This proposed AD would require you to replace the air…

  Atlas AD → Federal Register ↗

• Jan 19, 2005

  Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders

  The FAA is adopting a new airworthiness directive (AD) to supersede Airworthiness Directive 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD a…

  Atlas AD → Federal Register ↗

• Oct 7, 2004

  Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders

  The FAA proposes to supersede Airworthiness Directive (AD) 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This proposed AD applies to certain GTX 33…

  Atlas AD → Federal Register ↗

• May 21, 2004

  Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders

  The FAA adopts a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders that are installed on aircraft. This AD requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD is the result of observations that the GTX 330 and GTX 330D may…

  Atlas AD → Federal Register ↗

• Feb 9, 2004

  Airworthiness Directives; Learjet Model 31, 31A, 35, 35A (C-21A), 36, and 36A Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Learjet Model 31, 31A, 35, 35A (C-21A), 36, and 36A airplanes, that requires modification of the drag angles of the fuselage and engine pylons to gain access to the shear webs of the forward engine beams; repetitive inspections of the shea…

  Atlas AD → Federal Register ↗

• Dec 30, 2003

  Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders

  The FAA proposes to adopt a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders. This proposed AD would require you to install GTX 330/ 330D Software Upgrade Version 3.03. This proposed AD is the result of observations that the GTX 330 and GTX 330D may detect, fr…

  Atlas AD → Federal Register ↗

• Nov 13, 2003

  Airworthiness Directives; Learjet Model 31, 31A, 35, 35A (C-21A), 36, and 36A Airplanes

  This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Learjet Model 31, 31A, 35, 35A (C-21A), 36, and 36A airplanes. This proposal would require modification of the drag angles of the fuselage and engine pylons to gain access to the shear webs of the forward engine bea…

  Atlas AD → Federal Register ↗

• Apr 16, 2001

  Airworthiness Directives; Learjet Model 23, 24, 25, 28, 29, 31, 35, 36, and 55 Series Airplanes

  This amendment adopts a new airworthiness directive (AD) that is applicable to all Learjet Model 23, 24, 25, 28, 29, 31, 35, 36, and 55 series airplanes. This action requires an inspection to determine if tires on the main landing gear have a certain part number and certain serial numbers, and replacement with a tire…

  Atlas AD → Federal Register ↗

• Nov 16, 1999

  Airworthiness Directives; Learjet Model 31, 31A, 35, 35A, and 60 Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Learjet Model 31, 31A, 35, 35A, and 60 airplanes, that requires a visual inspection of the spoiler actuators to determine the serial number of the spoiler actuators; and replacement of the spoiler actuators with new actuators, if necessary…

  Atlas AD → Federal Register ↗

• Aug 30, 1999

  Airworthiness Directives; Learjet Model 31, 31A, 35, 35A, and 60 Airplanes

  This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Learjet Model 31, 31A, 35, 35A, and 60 airplanes. This proposal would require a visual inspection of the spoiler actuators to determine the serial number of the spoiler actuators; and replacement of the spoiler actu…

  Atlas AD → Federal Register ↗

04 /  Type Certificate Data Sheets

FAA TCDS for LEARJET INC 31A

The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.

• A10CE Historical Rev 64 · 12/28/2010

  Learjet Inc.

  Models: 25B, 24F-A, 36A, 24A + 25 more

  Atlas TCDS → DRS ↗

06 /  Supplemental Type Certificates

Modifications approved for LEARJET INC 31A

227 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.

• 03/06/2026

  STC SA2622NM

  Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101)

  Precise Flight Inc.

  Atlas STC → DRS ↗

• 09/26/2025

  STC ST03885AT

  Installation of an Avionica, Inc. avCM Cellular Module

  Aircraft Systems and Manufacturing Inc.

  Atlas STC → DRS ↗

• 09/15/2025

  STC ST12087CH

  Installation replacement Cabin/Cockpit Handheld Fire Extinguishers

  Avcon Industries Inc.

  Atlas STC → DRS ↗

• 03/24/2025

  STC ST02472AT

  Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII

  Aircraft Systems and Manufacturing Inc.

  Atlas STC → DRS ↗

• 03/24/2025

  STC ST03885AT

  Installation of an Avionica, Inc. avCM Cellular Module

  Aircraft Systems and Manufacturing Inc.

  Atlas STC → DRS ↗

• 02/17/2025

  STC ST02529CH

  Installation of XM Weather Receiver and Data Port

  Amphenol Cable and Interconnect Technologies Inc.

  Atlas STC → DRS ↗

• 08/27/2024

  STC ST01936WI

  Installation of LED lights

  AeroLED's Holdings LLC

  Atlas STC → DRS ↗

• 07/27/2024

  STC ST01138DE

  Installation of MidContinent MD23 standby altimeter and/or attitude indicators

  Butler National Corporation

  Atlas STC → DRS ↗

• 07/02/2024

  STC ST01138DE

  Installation of MidContinent MD23 standby altimeter and/or attitude indicators

  Cert Works LLC

  Atlas STC → DRS ↗

• 05/30/2024

  STC ST04728NY

  Installation of LAI CoolView Cabin Window

  Lee Aerospace Inc.

  Atlas STC → DRS ↗

• 05/13/2024

  STC ST03424CH

  Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders

  CMD Flight Solutions LLC

  Atlas STC → DRS ↗

• 02/06/2024

  STC ST01602WI

  Installation of Luminescent Overlay panels upgrade

  Global Aviation Tech LLC

  Atlas STC → DRS ↗

• 02/06/2024

  STC ST01391WI

  Upgrade of the Universal UNS-1B Flight Management System (FMS) to the UNS-1F FMS

  Global Aviation Tech LLC

  Atlas STC → DRS ↗

• 02/06/2024

  STC ST01604WI

  Installation of the Single UNS-1Ew Flight Management System (FMS) with a LPV Monitor upgrade

  Global Aviation Tech LLC

  Atlas STC → DRS ↗

• 02/06/2024

  STC ST01517WI

  Installation of the Glareshield LED Lighting System

  Global Aviation Tech LLC

  Atlas STC → DRS ↗

• 12/05/2023

  STC ST04575AT

  Installation of the Rockwell Collins ALT-1000+/ -4000+ with 5G Filtering

  Chippewa Aerospace Inc.

  Atlas STC → DRS ↗

• 11/22/2023

  STC ST03885AT

  Installation of an Avionica, Inc. avCM Cellular Module

  Archeion Holdings LLC

  Atlas STC → DRS ↗

• 09/01/2023

  STC ST00352SE

  Installation of an aft fuselage stowage locker.

  Raisbeck Engineering Inc.

  Atlas STC → DRS ↗

• 06/09/2023

  STC ST02472AT

  Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII

  Archeion Holdings LLC

  Atlas STC → DRS ↗

• 06/09/2023

  STC ST02472AT

  Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII

  Archeion Holdings LLC

  Atlas STC → DRS ↗

• 04/13/2023

  STC ST01070DE

  Installation of the Curtiss-Wright Fortress Flight Data Recorder (with Cockpit Voice Recorder)

  Peregrine

  Atlas STC → DRS ↗

• 03/01/2023

  STC ST01682WI

  Installation of Heads Up Technologies (HUT) Cabin Entertainment System (CES)

  Heads Up Technologies Inc.

  Atlas STC → DRS ↗

• 02/22/2023

  STC ST00098IB

  Introduction of ADS-B Out

  STC Twenty One Limited

  Atlas STC → DRS ↗

• 01/18/2023

  STC ST04221NY

  Installation of LAI Heated Windshields

  Lee Aerospace Inc.

  Atlas STC → DRS ↗

• 12/02/2022

  STC ST02004WI

  Installation of the Garmin GI-275 Instantaneous Vertical Speed Indicators (IVSI)

  Peregrine

  Atlas STC → DRS ↗

• 07/22/2022

  STC ST02893AT

  Installation of a Boom Beam Taxi/Landing Light System

  Whelen Aerospace Technologies

  Atlas STC → DRS ↗

• 06/22/2022

  STC ST02893AT

  Installation of a Boom Beam Taxi/Landing Light System

  Whelen Aerospace Technologies

  Atlas STC → DRS ↗

• 02/17/2022

  STC ST03885AT

  Installation of an Avionica, Inc. avCM Cellular Module

  Archeion Holdings LLC

  Atlas STC → DRS ↗

• 02/17/2022

  STC ST03885AT

  Installation of an Avionica, Inc. avCM Cellular Module

  Archeion Holdings LLC

  Atlas STC → DRS ↗

• 02/17/2022

  STC ST03885AT

  Installation of an Avionica, Inc. avCM Cellular Module

  Archeion Holdings LLC

  Atlas STC → DRS ↗

+ 197 more STCs on file

07 /  PMA replacement parts

FAA-approved replacement parts for LEARJET INC 31A

29 parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.

• BAS31010042#https://drs.faa.gov/browse/excelExternalWindow/91AE6817325787BA862578E20061BB28.0001##

  Installation of Universal Avionics Dual UNS-1Ew FMS

  Learjet Inc replaces Modification Part

  PMA holder →

• 1065#https://drs.faa.gov/browse/excelExternalWindow/9D3569CB97384A15862576C50058C5A7.0001##

  Equipment Racks

  Avcon Industries Inc replaces Modification Part

  PMA holder →

• 4108-34238#https://drs.faa.gov/browse/excelExternalWindow/BA796ED637CCE7C686257D86004F2E25.0001##

  UNS 1Ew FMS

  Global Aviation Technologies replaces Modification Part

  PMA holder →

• 4108-34238#https://drs.faa.gov/browse/excelExternalWindow/ACDA76536566C2A986257C61006F5EC0.0001##

  UNS 1Ew FMS

  Global Aviation Technologies replaces Modification Part

  PMA holder →

• M100132ICT#https://drs.faa.gov/browse/excelExternalWindow/E9B10767BFA4A77F8625722D004ED2A5.0001##

  Allied Signal (Bendix King) TCAS II System

  Learjet Inc replaces Modification Part

  PMA holder →

• M100267ICT#https://drs.faa.gov/browse/excelExternalWindow/7601D8EF7ECF4FD2862570F300633A18.0001##

  Allied Signal MVII Enhanced GPWS/ Windshear System Installation

  Learjet Inc replaces Modification Part

  PMA holder →

• BAS31017000#https://drs.faa.gov/browse/excelExternalWindow/3C420014405B0B67862571F7004FC5C4.0001##

  Single Universal UNS-1C+ or UNS-1E Flight Management System Installation

  Learjet Inc replaces Modification Part

  PMA holder →

• 1065#https://drs.faa.gov/browse/excelExternalWindow/3D55FC4CA0CEA4C0862574DE0053FB66.0001##

  Equipment Racks

  Avcon Industries Inc replaces Modification Part

  PMA holder →

• XMDPRT-01#https://drs.faa.gov/browse/excelExternalWindow/2C05DB4DA492A0A38625743C00498199.0001##

  XM WX Data Port

  Heads Up Technologies Inc replaces XMDPRT-01

  PMA holder →

• XMD075-01#https://drs.faa.gov/browse/excelExternalWindow/77A2CA3BAC21870C8625743C0049816A.0001##

  XM Weather Receiver

  Heads Up Technologies Inc replaces XMD075-01

  PMA holder →

• 120-99589-101#https://drs.faa.gov/browse/excelExternalWindow/4222FF4B6A37C7C2862574130069D673.0001##

  XM / WXR Master Kit

  Carlisle Interconnect Technologies dba Electronic Cable Specialists replaces Modification Part

  PMA holder →

• 120-99589-101#https://drs.faa.gov/browse/excelExternalWindow/2C7EB86FB3554E12862573FA00753BB5.0001##

  XM / WXR Master Kit

  Carlisle Interconnect Technologies dba Electronic Cable Specialists replaces Modification Part

  PMA holder →

• W/XT-1296 POLY#https://drs.faa.gov/browse/excelExternalWindow/2787B7FF2DF1E48986257DA8005CFF6E.0001##

  Learjet 31A Dust Pane Cabin Window - Inner (Tinted Polycarbonate)

  Great Lakes Aero Products Inc replaces 2613427-2

  PMA holder →

• W-1296 POLY#https://drs.faa.gov/browse/excelExternalWindow/06A8657ECF73CD4186257DA8005CFF14.0001##

  Learjet 31A Dust Pane Cabin Window - Inner (Clear Polycarbonate)

  Great Lakes Aero Products Inc replaces 2613427-1

  PMA holder →

• SC-W/G-1296#https://drs.faa.gov/browse/excelExternalWindow/19E2F178A1198A2686257DA8005CFEC1.0001##

  Learjet 31A Dust Pane Cabin Window - Inner (SC Gray Acrylic)

  Great Lakes Aero Products Inc replaces 2613427-1, 2613427-2

  PMA holder →

• SC-W/T-1296#https://drs.faa.gov/browse/excelExternalWindow/102244A035B33C2C86257DA8005CFE6D.0001##

  Learjet 31A Dust Pane Cabin Window - Inner (SC Green Acrylic)

  Great Lakes Aero Products Inc replaces 2613427-1, 2613427-2

  PMA holder →

• W/XT-1296#https://drs.faa.gov/browse/excelExternalWindow/AC69288AF0A9689786257DA8005CFE1B.0001##

  Learjet 31A Dust Pane Cabin Window - Inner (Any Tint Acrylic)

  Great Lakes Aero Products Inc replaces 2613427-1, 2613427-2

  PMA holder →

• W/T-1296#https://drs.faa.gov/browse/excelExternalWindow/869FCA51E086572B86257DA8005CFD62.0001##

  Learjet 31A Dust Pane Cabin Window - Inner (Green Acrylic)

  Great Lakes Aero Products Inc replaces 2613427-1, 2613427-2

  PMA holder →

• W/G-1296#https://drs.faa.gov/browse/excelExternalWindow/20B6A67B20E8993786257DA8005CFDC4.0001##

  Learjet 31A Dust Pane Cabin Window - Inner (Gray Acrylic)

  Great Lakes Aero Products Inc replaces 2613427-1, 2613427-2

  PMA holder →

• W-1296#https://drs.faa.gov/browse/excelExternalWindow/B66AD1939D4AB83286257DA8005CFCBE.0001##

  Learjet 31A Dust Pane Cabin Window - Inner (Clear Acrylic)

  Great Lakes Aero Products Inc replaces 2613427-1, 2613427-2

  PMA holder →

• AD-549-1324-06#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150113871420250604170814.0001##

  Battery Storage

  Aero Design Inc/A HEICO Aerospace Company replaces 549-1324-06

  PMA holder →

• 72019100-002#https://drs.faa.gov/browse/excelExternalWindow/BC06B2F0432D03B286257AE000671BA9.0001##

  General Interface Unit (GIU)

  Duncan Aviation Inc replaces Modification Part

  PMA holder →

• 72019100-A12#https://drs.faa.gov/browse/excelExternalWindow/1CD5413A1B0CA4DE86257A7D005FE1F9.0001##

  General Interface Unit (GIU)

  Duncan Aviation Inc replaces Modification Part

  PMA holder →

• 72019100-A12#https://drs.faa.gov/browse/excelExternalWindow/9CCA26D169E0E81F862576DB00689725.0001##

  General Interface Unit (GIU)

  Duncan Aviation Inc replaces Modification Part

  PMA holder →

• 72019100-A12#https://drs.faa.gov/browse/excelExternalWindow/3065A54636A02D6986257A780062BF77.0001##

  General Interface Unit (GIU)

  Duncan Aviation Inc replaces Modification Part

  PMA holder →

• 72019100-A12#https://drs.faa.gov/browse/excelExternalWindow/B97B533B870651A4862576DB006898E4.0001##

  General Interface Unit (GIU)

  Duncan Aviation Inc replaces Modification Part

  PMA holder →

• 167800-52#https://drs.faa.gov/browse/excelExternalWindow/96F3CB1BC7CE8F73862576F200696B0D.0001##

  Windshield Assembly

  Sierracin/Sylmar Corp replaces 6600393-004

  PMA holder →

• 167800-51#https://drs.faa.gov/browse/excelExternalWindow/7982CC0E8860ED18862576F200696AD6.0001##

  Windshield Assembly

  Sierracin/Sylmar Corp replaces 6600393-003

  PMA holder →

• 1065#https://drs.faa.gov/browse/excelExternalWindow/D5268ED22CCA43698625731D00584D04.0001##

  Equipment Racks

  Avcon Industries Inc replaces Modification Part

  PMA holder →

04 /  Regulations watching this type

Advisory Circulars and Federal Register activity for LEARJET INC 31A

05 /  Aircraft of this type

All 104 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.

05 /  Sources & Methodology

Every count traces back to a primary US-government source

• FAA Aircraft Registry →

  Refreshed Apr 27, 2026

  Available

• NTSB CAROL →

  Refreshed Apr 27, 2026

  Available

• Federal Register (FAA Airworthiness Directives) →

  Refreshed Apr 27, 2026

  Available

We render counts and lists as the agency publishes them. Read the methodology →