# N508AB: 2004 Learjet 60 - Status: Valid registration - Airframe: [Learjet 60](https://openairdocs.org/model/learjet-60) (registry code 5170707, 11 seats) - Engine: [Pratt & Whitney Canada PW305A](https://openairdocs.org/engine/pratt-whitney-canada-pw305a) (registry code 52190) - Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) (Learjet Inc.), [TCDS E35NE](https://openairdocs.org/tcds/E35NE) (Pratt & Whitney Canada Corp.) (OpenAirDocs) - Serial number: 273 - Year built: 2004 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: August 25, 2011 - Certificate issued: May 21, 2018 - Expires: May 31, 2028 - Mode S code: A657AA - Registered owner: [Lj60-273 LLC](https://openairdocs.org/faa-owner/LJ60-273%20LLC) - Location: [Memphis, TN](https://openairdocs.org/faa-place/TN/Memphis) - Owner type: LLC - Owner's area on the map: 35.0351° N, 89.9272° W: Placed by OpenAirDocs at the center of ZIP code 38118, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=508AB - Page: https://openairdocs.org/aircraft/N508AB From the FAA registry file of October 21, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs that may apply (OpenAirDocs): 23 in force ### Matched by airframe (Learjet 60) - [AD 2022-05-01](https://openairdocs.org/ad/2022-05-01): Spoilers · Learjet 35, 35A (C-21A), 36 and 5 more. Effective Mar 9, 2022 - [AD 2020-11-04](https://openairdocs.org/ad/2020-11-04): Engine Exhaust · Learjet 60. Effective Jun 25, 2020 - [AD 2019-17-01](https://openairdocs.org/ad/2019-17-01): Fuselage · Learjet 60. Effective Oct 2, 2019 - [AD 2018-19-04](https://openairdocs.org/ad/2018-19-04): TE Flap Control System · Learjet 28, 29, 31 and 9 more. Effective Oct 23, 2018 - [AD 2013-24-04](https://openairdocs.org/ad/2013-24-04): Fuel · Learjet 60. Effective Mar 14, 2014 - [AD 2013-13-09](https://openairdocs.org/ad/2013-13-09): Landing gear, Wings, Engine exhaust · Learjet 60. Effective Aug 6, 2013 - [AD 2012-08-16](https://openairdocs.org/ad/2012-08-16): Extinguishing system · Learjet 60. Effective May 29, 2012 - [AD 2010-11-11](https://openairdocs.org/ad/2010-11-11): Landing gear · Learjet 60. Effective Jul 13, 2010 - [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 2002-14-19](https://openairdocs.org/ad/2002-14-19): Collins Air Data Computers (ADC) · Boeing DC-8-11, DC-8-12, DC-8-21 and 36 more. Effective Aug 23, 2002 - [AD 2001-12-02](https://openairdocs.org/ad/2001-12-02): Brake Valve · Learjet 55, 55B, 55C and 1 more. Effective Jul 18, 2001 - [AD 2000-23-18](https://openairdocs.org/ad/2000-23-18): Oxygen Tubing · Learjet 60. Effective Dec 26, 2000 - [AD 99-23-19](https://openairdocs.org/ad/99-23-19): Spoiler Actuator · Learjet 31, 31A, 35 and 2 more. Effective Dec 21, 1999 - [AD 99-16-03](https://openairdocs.org/ad/99-16-03): Horizontal Stabilizer Anti-Ice System · Learjet 23, 24, 24A and 22 more. Effective Sep 7, 1999 - [AD 98-16-18](https://openairdocs.org/ad/98-16-18): Brake Wear Dimension · Learjet 60. Effective Aug 24, 1998 - [AD 96-18-01](https://openairdocs.org/ad/96-18-01): Aft Core Cowl Nozzle of Engine Nacelles · Learjet 60. Effective Oct 2, 1996 - [AD 95-21-03](https://openairdocs.org/ad/95-21-03): Engine Fire Pull Switch Assembly · Learjet 31A and 60. Effective Oct 26, 1995 - [AD 94-01-06](https://openairdocs.org/ad/94-01-06): Traffic Alert and Collision Avoidance System II Processors · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 176 more. Effective Feb 4, 1994 - [AD 93-23-12](https://openairdocs.org/ad/93-23-12): Heating Systems · Learjet 60. Effective Dec 15, 1993 ### Matched by engine (Pratt & Whitney Canada PW305A) - [AD 2010-24-05](https://openairdocs.org/ad/2010-24-05): Failure of the impeller · Pratt & Whitney Canada PW305A and PW305B. Effective Jan 3, 2011 - [AD 2009-14-12](https://openairdocs.org/ad/2009-14-12): High Pressure Compressor (HPC) · Pratt & Whitney Canada PW305A and PW305B. Effective Aug 13, 2009 - [AD 2008-13-16](https://openairdocs.org/ad/2008-13-16): Fan blade · Pratt & Whitney Canada PW305A and PW305B. Effective Jul 10, 2008 - [AD 2001-04-10](https://openairdocs.org/ad/2001-04-10): Low Pressure Turbine (LPT) Disks · Pratt & Whitney Canada PW305 and PW305A. Effective Apr 6, 2001 ### Historical (superseded or no longer in force) - [AD 2017-11-09](https://openairdocs.org/ad/2017-11-09) (historical): Fuselage · Learjet 60. Effective May 30, 2017 - [AD 2017-08-07](https://openairdocs.org/ad/2017-08-07) (historical): Fuselage · Learjet 60. Effective May 22, 2017 - [AD 2003-19-11](https://openairdocs.org/ad/2003-19-11) (historical): Fuel crossflow tube · Learjet 60. Effective Nov 3, 2003 - [AD 95-14-09](https://openairdocs.org/ad/95-14-09) (historical): Fuel Crossflow Tube · Learjet 60. Effective Aug 3, 1995 ## Information bulletins (advisory) (3 in force) - [SAIB 2026-07](https://openairdocs.org/saib/2026-07): MAIN LANDING GEAR ATTACH SECTION, Trunnion Pins. Issued Mar 19, 2026 - [SAIB NM-12-25](https://openairdocs.org/saib/NM-12-25): Auto Flight: Altitude Controller. Issued Apr 16, 2012 - [SAIB 2024-04](https://openairdocs.org/saib/2024-04): Electronic Engine Control Units. Issued Oct 29, 2024 ## NTSB investigations None matched to N508AB. ## FAA accident and incident reports None matched to N508AB. ## Service difficulty reports None filed for this aircraft. Reports filed since March 27, 2018, when the mark's previous registration was cancelled. ## Earlier aircraft with N508AB The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N508AB before. - [Cancelled 2018-03-27](https://openairdocs.org/deregistered/N508AB-2018-03-27): Brown Raymond Allen RV-7E, S/N 70080. Registration expired, pending cancellation. Owner: [Brown Raymond A](https://openairdocs.org/faa-owner/BROWN%20RAYMOND%20A), [Lakeland, FL](https://openairdocs.org/faa-place/FL/Lakeland) ## Related - Other Learjet 60 aircraft: https://openairdocs.org/model/learjet-60/aircraft.md - STCs for the Learjet 60: https://openairdocs.org/model/learjet-60/stcs.md - The Pratt & Whitney Canada PW305A engine: https://openairdocs.org/engine/pratt-whitney-canada-pw305a.md --- 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.