# N68LU: 1968 Learjet 24 - Status: Valid registration - Airframe: [Learjet 24](https://openairdocs.org/model/learjet-24) (registry code 5170302, 8 seats) - Engine: [GE CJ610-SER series](https://openairdocs.org/engine/ge-cj610-ser-series) (registry code 30006) - Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) (Learjet Inc.), [TCDS 1E16](https://openairdocs.org/tcds/1E16) (General Electric Company) (OpenAirDocs) - Serial number: 163 - Year built: 1968 - Type: Fixed wing multi engine - Engine type: Turbo-jet - Airworthiness: Standard, transport - Airworthiness date: April 2, 1968 - Certificate issued: August 21, 1986 - Expires: April 30, 2028 - Mode S code: A901EB - Registered owner: [Lewis University](https://openairdocs.org/faa-owner/LEWIS%20UNIVERSITY) - Location: [Romeoville, IL](https://openairdocs.org/faa-place/IL/Romeoville) - Owner type: Corporation - Owner's area on the map: 41.6333° N, 88.0993° W: Placed by OpenAirDocs at the center of ZIP code 60446, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=68LU - Page: https://openairdocs.org/aircraft/N68LU 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. The registry lists only the engine series, so ADs for every GE CJ610-SER model are included. ## ADs that may apply (OpenAirDocs): 42 in force ### Matched by airframe (Learjet 24) - [AD 2006-16-18 R1](https://openairdocs.org/ad/2006-16-18-R1): Installing a warning placard on the TAWS/RMI · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 100 more. Effective Jul 18, 2008 - [AD 2007-04-18](https://openairdocs.org/ad/2007-04-18): Left- and right-hand standby fuel pump switches · Learjet 23, 24, 24A and 25 more. Effective Mar 23, 2007 - [AD 2005-23-06](https://openairdocs.org/ad/2005-23-06): Thrust reverser hydraulic system · Engine thrust reversers (NORDAM Group STC SA1669SW or 2 others). Effective Dec 19, 2005 - [AD 2005-23-03](https://openairdocs.org/ad/2005-23-03): Spherical accumulator for the main hydraulic system · Learjet 23, 24, 24A and 14 more. Effective Dec 19, 2005 - [AD 2005-16-09](https://openairdocs.org/ad/2005-16-09): Flappers. · Learjet 23, 24, 25 and 2 more. Effective Sep 13, 2005 - [AD 2005-13-36](https://openairdocs.org/ad/2005-13-36): Center ball of the aileron control cable · Learjet 23, 24, 24A and 21 more. Effective Aug 9, 2005 - [AD 2001-07-11](https://openairdocs.org/ad/2001-07-11): Main Landing Gear Tires · Learjet 23, 24, 24A and 25 more. Effective May 1, 2001 - [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 95-20-03](https://openairdocs.org/ad/95-20-03): Airplane Flight Manual (AFM) - Altitude Limitations · Learjet 24, 24A, 24B and 24 more. Effective Nov 2, 1995 - [AD 92-19-12](https://openairdocs.org/ad/92-19-12): Oxygen Plumbing & Map Light Wires · Learjet 23, 24, 24A and 22 more. Effective Nov 17, 1992 - [AD 89-12-01](https://openairdocs.org/ad/89-12-01): Drag Chute Riser · Learjet 24, 24A, 24B and 22 more. Effective Jul 3, 1989 - [AD 86-05-05 R1](https://openairdocs.org/ad/86-05-05-R1): Battery Vent System · Learjet 23, 24, 24A and 20 more. Effective Jan 19, 1988 - [AD 86-22-05](https://openairdocs.org/ad/86-22-05): Flap Sector Mounting Brackets Inspection · Learjet 23, 24, 24A and 23 more. Effective Nov 10, 1986 - [AD 82-01-05 R2](https://openairdocs.org/ad/82-01-05-R2): Stall Warning Accelerometer Unit · Learjet 23, 24, 24A and 16 more. Effective Apr 10, 1986 - [AD 80-19-11 R1](https://openairdocs.org/ad/80-19-11-R1): Automatic Flight Control and Stall Warning Systems · Learjet 23, 24, 24A and 20 more. Effective May 20, 1985 - [AD 84-19-06](https://openairdocs.org/ad/84-19-06): Tab Control System · Learjet 24, 24A, 24B and 22 more. Effective Oct 22, 1984 - [AD 84-17-02](https://openairdocs.org/ad/84-17-02): Horizontal Stabilizer Trim Actuator · Learjet 24, 24A, 24B and 7 more. Effective Oct 5, 1984 - [AD 81-13-07](https://openairdocs.org/ad/81-13-07): Change to AFM Fuel Starvation · Learjet 23, 24, 24A and 20 more. Effective Jun 25, 1981 - [AD 80-26-02](https://openairdocs.org/ad/80-26-02): AFCS/AFC-SS Pitch Function · Learjet 23, 24, 24A and 16 more. Effective Jan 15, 1981 - [AD 80-19-09 R1](https://openairdocs.org/ad/80-19-09-R1): Jet Pumps · Learjet 23, 24, 24A and 20 more. Effective Dec 11, 1980 - [AD 80-07-09](https://openairdocs.org/ad/80-07-09): Cabin Main Entrance Upper Door · Learjet 23, 24, 24A and 20 more. Effective May 1, 1980 - [AD 79-12-05](https://openairdocs.org/ad/79-12-05): Stall Warning Systems · Learjet 24, 24A, 24B and 13 more. Effective Nov 6, 1979 - [AD 78-20-12](https://openairdocs.org/ad/78-20-12): Aircraft Tires · Cessna 336, 337, T337B and 15 more. Effective Oct 5, 1978 - [AD 78-16-03](https://openairdocs.org/ad/78-16-03): Refrigeration Condenser Fan · Learjet 23, 24, 24A and 18 more. Effective Aug 17, 1978 - [AD 77-19-02](https://openairdocs.org/ad/77-19-02): Cabin Door Locking Mechanism · Learjet 23, 24, 24A and 14 more. Effective Jul 20, 1978 - [AD 76-18-07](https://openairdocs.org/ad/76-18-07): Inverter Input Power · Learjet 24, 25, 35 and 1 more. Effective Sep 10, 1976 - [AD 75-15-06](https://openairdocs.org/ad/75-15-06): Landing Gear Struts · Learjet 23, 24, 24A and 14 more. Effective Jul 25, 1975 - [AD 74-23-01](https://openairdocs.org/ad/74-23-01): External Power Receptacle · Learjet 23 and 24. Effective Nov 5, 1974 - [AD 72-15-03](https://openairdocs.org/ad/72-15-03): Spoiler Actuator Pivot Bolts · Learjet 24 and 25. Effective Sep 19, 1974 - [AD 71-16-04](https://openairdocs.org/ad/71-16-04): Battery Change or Modification of Comb · Learjet 23, 24 and 25. Effective Aug 3, 1971 - [AD 69-15-06](https://openairdocs.org/ad/69-15-06): Engine Throttle Cable · Learjet 23, 24 and 25. Effective Aug 15, 1969 - [AD 66-14-02](https://openairdocs.org/ad/66-14-02): Windshield Deicing Systems · Learjet 23 and 24. Effective Jun 1, 1966 - [AD 66-13-04](https://openairdocs.org/ad/66-13-04): Pressure Control Static Air System · Learjet 23 and 24. Effective May 17, 1966 ### Matched by engine (GE CJ610-SER series) - [AD 2010-09-08](https://openairdocs.org/ad/2010-09-08): AFT Technologies combustion liners · General Electric CF700-2C, CF700-2D, CF700-2D-2 and 7 more. Effective May 28, 2010 - [AD 2001-10-12](https://openairdocs.org/ad/2001-10-12): Unapproved Parts · General Electric CF700-2C, CF700-2D, CF700-2D-2 and 7 more. Effective Jun 7, 2001 - [AD 98-23-06](https://openairdocs.org/ad/98-23-06): Combustion Liner Assemblies · General Electric CF700-2C, CF700-2D, CF700-2D-2 and 7 more. Effective Nov 20, 1998 - [AD 97-25-08](https://openairdocs.org/ad/97-25-08): General Electric CF700-2C, CF700-2D, CF700-2D-2 and 7 more. Effective Jan 2, 1998 - [AD 85-18-03](https://openairdocs.org/ad/85-18-03): Stage 1 Turbine Disk · General Electric CF700-2D, CF700-2D-2, CJ610-8A and 1 more. Effective Nov 15, 1985 - [AD 80-08-06 R1](https://openairdocs.org/ad/80-08-06-R1): Turbine Disks · General Electric CF700-2D, CF700-2D-2, CJ610-8A and 1 more. Effective Feb 2, 1981 - [AD 75-19-05](https://openairdocs.org/ad/75-19-05): Horizontal Drive Shaft · General Electric CF700-2C, CF700-2D, CF700-2D-2 and 1 more. Effective Sep 26, 1975 - [AD 78-07-06](https://openairdocs.org/ad/78-07-06): Compressor Disks · General Electric CF700-2C, CF700-2D, CF700-2D-2 and 2 more - [AD 73-23-05](https://openairdocs.org/ad/73-23-05): First Stage Turbine Discs · General Electric CF700-2C, CJ610-1, CJ610-4 and 2 more ### Historical (superseded or no longer in force) - [AD 95-25-03](https://openairdocs.org/ad/95-25-03) (historical): Deterioration of Flapper Valves of Tip Tank · Learjet 23, 24, 25 and 2 more. Effective Dec 27, 1995 ## Information bulletins (advisory) (5 in force) - [SAIB 2026-07](https://openairdocs.org/saib/2026-07): MAIN LANDING GEAR ATTACH SECTION, Trunnion Pins. Issued Mar 19, 2026 - [SAIB NM-13-38](https://openairdocs.org/saib/NM-13-38): Flight Controls Control Column Section. Issued Jun 24, 2013 - [SAIB CE-02-19](https://openairdocs.org/saib/CE-02-19): . Issued Mar 11, 2002 - [SAIB NE-08-49R1](https://openairdocs.org/saib/NE-08-49R1): Turbine Engine Combustion Section. Issued Sep 17, 2008 - [SAIB NE-00-31](https://openairdocs.org/saib/NE-00-31): . Issued Aug 29, 2000 - [SAIB NE-08-49](https://openairdocs.org/saib/NE-08-49) (historical): Turbine Engine Combustion Section. Issued Sep 9, 2008 ## NTSB investigations None matched to N68LU. ## FAA accident and incident reports None matched to N68LU. ## Service difficulty reports None filed for this aircraft. ## Related - Other Learjet 24 aircraft: https://openairdocs.org/model/learjet-24/aircraft.md - STCs for the Learjet 24: https://openairdocs.org/model/learjet-24/stcs.md - The GE CJ610-SER series engine: https://openairdocs.org/engine/ge-cj610-ser-series.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.