# Gates Learjet 24 - Type: Aircraft model (FAA registry) - Registry code: 5170301 - Manufacturer (registry): GATES LEARJET CORP - Model: 24 - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 2 · Turbo-jet - Seats: 8 - Weight class: 12,500 to 19,999 lb - Certification: Type certificated - Data sheet: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) (OpenAirDocs) - Holder: Learjet Inc. - Registered aircraft: 0 - Page: https://openairdocs.org/model/gates-learjet-24 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 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 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) (3) - [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 ## Registered aircraft None registered with this model now. ## STCs approved for it (93, first 50) - [STC SA00179WI](https://openairdocs.org/stc/SA00179WI): Installation of pressure dome provision for an infrared scanner in the camera door.. Avcon Industries Inc - [STC SA01213CH](https://openairdocs.org/stc/SA01213CH): Install air ambulance conversion in accordance with Spectrum Aeromed Inc. Drawings as listed on AML SA01213CH, or later FAA approved revision.. Spectrum Aeromed LLC dba Spectrum Aeromed - [STC SA01452CH](https://openairdocs.org/stc/SA01452CH): Installation of an air ambulance conversion kit.. Med-Pac Inc. - [STC SA02532AT](https://openairdocs.org/stc/SA02532AT): Installation of subject Michelin tires on appropriate aircraft. For Michelin 5, 6, 8, and 10-inch rim diameter tires on General Aviation Aircraft.. Michelin North America Inc. - [STC SA1170CE](https://openairdocs.org/stc/SA1170CE): Stretcher installation in cabin area.. Med-Flite of Midamerica Inc - [STC SA1170GL](https://openairdocs.org/stc/SA1170GL): Except Model 55: Install Egan Aviation air ambulance stretcher P/N 125 using installation kit P/N 803, inverter/pump kit No. 808, 809, or 810. For Model 55, install air ambulance stretcher P/N 125 using installation kit P/N 804, medical oxygen system kit P/N 807, inverter/pump kit No. 808, 809, or810.. Paul/ Lanna Egan LLC - [STC SA1418SO](https://openairdocs.org/stc/SA1418SO): Replacement of rotor vanes in Airborne 211CC and 212CW vacuum pumps. (See limitations). Aircraft Products Supply Co Inc - [STC SA157NE](https://openairdocs.org/stc/SA157NE): Installation of Graphic Engine Monitor System Model GEM-602 S/N 403 and GEM-603 S/N001126and subsequent.. Insight Instrument Corp - [STC SA1639GL](https://openairdocs.org/stc/SA1639GL): Install air ambulance conversion.. Spectrum Aeromed LLC dba Spectrum Aeromed - [STC SA1670SW](https://openairdocs.org/stc/SA1670SW): Installation of engine thrust reversers.. The NORDAM Group LLC - [STC SA1746SW](https://openairdocs.org/stc/SA1746SW): Installation of Ray Electronics Model 7107 battery fault warning system.. Ray Electronics Company - [STC SA175RM](https://openairdocs.org/stc/SA175RM): Replacement of throttle knob, Model EP-004, for 20 series Learjet equipped with Dee Howard thrust reversers.. Jet Accessories Inc - [STC SA1952SO](https://openairdocs.org/stc/SA1952SO): Installation of Appalachian Access. stainless steel brake discs, P/N 75-43.. Appalachian Accessories - [STC SA1RM](https://openairdocs.org/stc/SA1RM): Installation of cargo restraint system. Avcon Industries Inc - [STC SA2304SW](https://openairdocs.org/stc/SA2304SW): Replacement of plunger type landing gear squat switch with rotary type switch.. Sierra Industries, Inc - [STC SA2557NM (1 OF 2)](https://openairdocs.org/stc/SA2557NM%20(1%20OF%202)): Installation of KS Avionics EGT/CHT-2( ) combined exhaust gas and cylinder head temperature monitoring system.. K S Avionics Inc - [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 SA2657SW](https://openairdocs.org/stc/SA2657SW): Modification of air conditioner motor. Zee Systems, Inc - [STC SA2661SW](https://openairdocs.org/stc/SA2661SW): Installation of Ray Model 7507A battery monitoring system. Zee Company, Inc - [STC SA2726SW](https://openairdocs.org/stc/SA2726SW): Installation of 6-pole rotary squat switches.. Sierra Industries, Inc - [STC SA2788SW](https://openairdocs.org/stc/SA2788SW): Installation of tail-stringer antenna housing.. Sted-Mac Co - [STC SA2861SW](https://openairdocs.org/stc/SA2861SW): Addition of Hydro seal fluid additive to nose and main gear shock struts.. Granville Lasseter/dba Granville's Aircraft Strut Sealant - [STC SA2876WE](https://openairdocs.org/stc/SA2876WE): Installation of vertical tail floodlights on the horizontal stabilizer.. DeVore Aviation Corporation of America, a New Mexico Corporation - [STC SA3001SO](https://openairdocs.org/stc/SA3001SO): Installation of Appalachian Accessories, stainless steel brake discs, P/N 75-43.. Aviation Products, Inc - [STC SA30GL](https://openairdocs.org/stc/SA30GL): Installation of electronic engine synchronizer system.. Ontic Engineering and Manufacturing Inc. - [STC SA3249WE](https://openairdocs.org/stc/SA3249WE): Installation of dual Collins ADF Systems.. Learjet Inc - [STC SA3264WE](https://openairdocs.org/stc/SA3264WE): Installation of Global GNS-500A VLF navigation system.. Learjet Inc - [STC SA3328WE](https://openairdocs.org/stc/SA3328WE): Installation of flight data recorder Sundstrand Model FA542.. Learjet Inc - [STC SA36NW](https://openairdocs.org/stc/SA36NW): Installation of Sundstrand Ground Proximity Warning System. Sundstrand Data Control Inc - [STC SA3899WE](https://openairdocs.org/stc/SA3899WE): Installation of Collins F1S-84 Flight Instrument System.. Learjet Inc - [STC SA4059NM](https://openairdocs.org/stc/SA4059NM): Installation of emergency medical system.. Milam International Inc - [STC SA4060NM](https://openairdocs.org/stc/SA4060NM): Installation of emergency medical system.. Mayo Aviation Inc - [STC SA412CE](https://openairdocs.org/stc/SA412CE): Installation of Woodward Electronic Engine synchronizer system.. Ontic Engineering and Manufacturing Inc. - [STC SA4218WE](https://openairdocs.org/stc/SA4218WE): Installation of Radio Corporation of America Primus-300SL Color Weather Radar System.. Learjet Inc - [STC SA4403NM](https://openairdocs.org/stc/SA4403NM): Installation of third attitude indicator that meets the requirements of FAR 121.305(j).. Learjet Inc - [STC SA4999NM](https://openairdocs.org/stc/SA4999NM): Installation of lifeport patient loading and support system.. LifePort LLC - [STC SA5159NM (1 OF 2)](https://openairdocs.org/stc/SA5159NM%20(1%20OF%202)): Installation of chip detector system.. Northwest Aircraft Inc - [STC SA5581SW](https://openairdocs.org/stc/SA5581SW): Installation of ALCOR true-flow/ totalizer system. Alcor LLC - [STC SA639AL](https://openairdocs.org/stc/SA639AL): Installation of Model EP-110 starter/generator decoupler system on Models 23, 24, 25 airplanes using Bendix Model30B-37 starter generators.. Jet Accessories Inc - [STC SA644CE](https://openairdocs.org/stc/SA644CE): Install drift sight provisions. Limited to installation on Learjet model 24, serial number 124.. Eaglejet Aviation Inc. - [STC SA944NW](https://openairdocs.org/stc/SA944NW): Installation of the XR Drag Reduction System. Avcon Industries Inc - [STC SA996EA](https://openairdocs.org/stc/SA996EA): Installation of Shaw Aero fuel filler cap P/Ns 457-2, -266, -370, 431, -9R, -125, -1251.. Parker Hannifin Fluid Systems Division - [STC ST00016WI](https://openairdocs.org/stc/ST00016WI): Installation of Electric Floorboard Heaters. Learjet Inc - [STC ST00361DE](https://openairdocs.org/stc/ST00361DE): Installation of Puritan Bennett or B/E Aerospace Sweep on 2000 or Zodiac Intertechnique EROS crew oxygen mask.. West Star Aviation - [STC ST00462LA](https://openairdocs.org/stc/ST00462LA): Modification of the engine exhaust system.. Rooke Corporation dba Aviation Equipment - [STC ST00738WI](https://openairdocs.org/stc/ST00738WI): Increased service life. Data required.. Phoenix Air Group Inc. - [STC ST00814WI](https://openairdocs.org/stc/ST00814WI): Landing Gear Life Extension.. Phoenix Air Group Inc. - [STC ST00835DE](https://openairdocs.org/stc/ST00835DE): Installation of Automatic Dependent Surveillance - Broadcast (ADS-B) Out and In functionality using the Garmin GTX 335R and GTX 345R Transponders plus qualified position sensor. Peregrine - [STC ST01138DE](https://openairdocs.org/stc/ST01138DE): Installation of MidContinent MD23 standby altimeter and/or attitude indicators. Butler National Corporation - [STC ST01195WI](https://openairdocs.org/stc/ST01195WI): Installation of Rosemount Pitot/Static Probes, altimeters, and associated equipment in Learjet 20 series aircraft to obtain Reduced Vertical Separation Minimum approval.. Avcon Industries Inc All 93: https://openairdocs.org/model/gates-learjet-24/stcs.md ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (42) As reported by operators and repair stations, by the model named in the report. - [SDR HAEA200900211](https://openairdocs.org/sdr/HAEA200900211), Oct 2, 2009: PUMP. FAILED. ON DESCENT, ACFT HYD PRESSURE GAUGE READ ZERO. LANDING GEAR EXTENDED MANUALLY. ACFT LANDED NORMALLY. MX REPLACED NR1 AND NR2 ENGINE DRIVEN HYD PUMP. OPS CHECK G - [SDR HAEA200900208](https://openairdocs.org/sdr/HAEA200900208), Feb 19, 2009: HOUSING. CRACKED. ACFT LOST MAIN HYD PRESSURE DURING DECENT INTO 'FAR'. ON LANDING ROLL OUT DEPLOYED DRAG CHUTE AND ACTIVATED EMERGENCY BRAKE. MX DISCOVERED THE NR 3 BRAKE HSG CR - [SDR 2008FA0000157](https://openairdocs.org/sdr/2008FA0000157), Jan 8, 2008: YAW DAMPER. FAULTY. THIS PART FAILED TO OPERATE DURING FIRST FLIGHT AFTER INSTALLATION AT CRUISE. - [SDR 2008FA0000101](https://openairdocs.org/sdr/2008FA0000101), Jan 8, 2008: YAW DAMPER. FAULTY. THIS PART FAILED TO OPERATE DURING FIRST FLIGHT, AFTER INSTALLATION, AT CRUISE. - [SDR HAEA200600194](https://openairdocs.org/sdr/HAEA200600194), Sep 22, 2006: ENGINE. FLAMED OUT. RT ENGINE FLAMED OUT ON DESCENT INTO YIP. PILOT REPORTED THAT THE RT ENGINE THROTTLE WAS RETARDED TO LOWER THAN NORMAL IDLE. ENGINE RELIGHT WAS ACCOMPLISHED. AI - [SDR HAEA200600192](https://openairdocs.org/sdr/HAEA200600192), Aug 29, 2006: MOTOR. FAILED. AIRCRAFT DEPARTED AND NOTICED SMOKE IN THE COCKPIT. AIRCRAFT RETURNED, UNEVENTFUL. COMPANY MAINTENANCE ENROUTE. THE SOURCE OF THE SMOKE SEEMED TO BE THE AFT CAB - [SDR HAEA200400157](https://openairdocs.org/sdr/HAEA200400157), Jul 14, 2004: ANTI-SKID SYS. FAULTY. ON LANDING YIP, PILOT REPORTED AIRCRAFT BEGAN TO SLIGHTLY VEER TO THE RIGHT. CREW APPLIED FULL FLIGHT CONTROL DEFLECTION IN AN ATTEMPT TO COUNTER ACT ANY CROSSW - [SDR W322004F00001](https://openairdocs.org/sdr/W322004F00001), May 19, 2004: BRAKE ASSY. CRACKED. AIRCRAFT REPORTED LOSS OF HYDRAULIC PRESSURE AFTER FAILURE OF FLAPS TO DEPLOY. UPON INITIAL INSPECTION, HYDRAULIC FLUID WAS FOUND FLOWING FROM LT BRAKE ASSEMBLY - [SDR 00137](https://openairdocs.org/sdr/00137), May 6, 2004: CONNECTOR. FAULTY. PILOT REPORTED RIGHT THRUST REVERSER UNSAFE LIGHT ILLUMINATED DURING DESCENT. PER CHECKLIST ENGINE SHUT DOWN AND EXECUTED AN UNEVENTFUL LANDING IN LRD. REPLACED - [SDR 00116](https://openairdocs.org/sdr/00116), Oct 7, 2003: ENGINE. FLAMED OUT. PILOT REPORTED LT ENGINE FLAMMED OUT WHILE CLIMBING FROM FL420 TO FL430, DECENT TO RELIGHT ALTITUDE, RELIGHT NORMAL AND CONTINUED TO DESTINATION. WILL UPDATE AF - [SDR X5C2003F00000](https://openairdocs.org/sdr/X5C2003F00000), Jan 31, 2003: FILTER ELEMENT. DIRTY. DURING SCHEDULED MAINTNANCE, REPLACED MAIN FUEL FILTERS WITH ELEMENTS. EXPERENCED LOW FUEL PRESSURE LIGHT AT HIGH ENGINE POWER SETTINGS WITH JET PUMP OPERATION. - [SDR 00068](https://openairdocs.org/sdr/00068), Dec 6, 2002: SWITCH. OUT OF ADJUST. PILOT REPORTED 3 RED LIGHTS (DOOR LIGHTS) AFTER DEPARTURE FROM YIP AND RETURNED TO YIP. MAINTENANCE JACKED AND SWUNG GEAR OPS CK GOOD. AIRCRAFT DEPARTED YIP WIT - [SDR 00063](https://openairdocs.org/sdr/00063), Nov 18, 2002: INDICATOR. MALFUNCTIONED. AIRCRAFT DEPARTED, GEAR UNSAFE LIGHTS DID NOT GO OUT, AIRCRAFT RETURNED FOR UNEVENTFUL LANDING. AIRCRAFT FERRIED, DIRECT GEAR DOWN AND LOCKED FOR MAINTENANCE. W - [SDR X5C2002F00001](https://openairdocs.org/sdr/X5C2002F00001), Oct 17, 2002: O-RING. FAILED. LOW HYDRAULIC PRESSURE DURING LANDING APPROACH. REPLACED O-RING AT LEFT MAIN LANDING GEAR ACTUATOR FITTING, OPS CHECK GOOD. - [SDR X5C2002F00000](https://openairdocs.org/sdr/X5C2002F00000), Oct 17, 2002: O-RING. NICKED. LOW HYDRAULIC PRESSURE ON APPROACH, AIRCRAFT RETURNED, MAINTENANCE BASE. FOUND HYDRAULIC LEAK AT LT MAIN GEAR ACTUATOR FITTING, HYDRAULIC FLUID LEVEL LOW. LEAK - [SDR ESUA116380](https://openairdocs.org/sdr/ESUA116380), Sep 14, 2002: ACCESS PANEL. DEPARTED. AFTER DEPARTURE , PASSING THROUGH 13000 FEET, PILOT HEARD A LOUD BANG FOLLOWED BY A NOTICEABLE VIBRATION. PILOT DECLARED AN EMERGENCY, RETURNED TO AIRPORT. MAIN - [SDR 090214](https://openairdocs.org/sdr/090214), Sep 14, 2002: DOOR. OPEN. AFTER DEPARTURE FOR CYVR, PASSING THROUGH 13000 FEET PILOT HEARD A LOUD BANG FOLLOWED BY A NOTICEABLE VIBRATION. PILOT DECLARED AN EMERGENCY, TO RETURN TO CYVR. - [SDR HAEA00040](https://openairdocs.org/sdr/HAEA00040), Sep 6, 2002: STATIC LINE. KINKED. AIRCRAFT DEPARTED KYIP CLIMBING THROUGH 2,000 FT ALTIMETER PILOT SIDE LOCKED UP. RETURNED TO DEPARTURE AIRPORT FOR MAINTENANCE. FOUND STATIC LINE KINKED, REPAIR - [SDR 00012](https://openairdocs.org/sdr/00012), Feb 12, 2002: WARNING SYSTEM. FALSE INDICATION. LANDING GEAR UNSAFE LIGHT RETURNED TO DEPARTURE AIRPORT FOR MAINTENANCE. MAINTENANCE SWUNG GEAR, FOUND NO DISCREPANCIES. AIRCRAFT RETURNED TO SERVICE. - [SDR 00011](https://openairdocs.org/sdr/00011), Jan 24, 2002: FASTENER. MISSING. LANDING GEAR WOULD NOT RETRACT, OBTAINED FERRY PERMIT TO RELOCATE AIRCRAFT TO ADS. MAINTENANCE FOUND LT GEAR SQUAT SWITCH HARDWARE MISSING. REPLACED AND REPAIRE - [SDR HAEA200100002](https://openairdocs.org/sdr/HAEA200100002), Oct 5, 2001: FCU. OUT OF ADJ. AIRCRAFT WAS CLIMBING FROM 390 TO 410 AT 410 RIGHT ENGINE FLAMED OUT. DESCEND TO 240, PERFORMED SUCCESSFUL RELIGHT AND CLIMB BACK TO 390. DENSITY SETTING CHANGE - [SDR 00002](https://openairdocs.org/sdr/00002), Oct 4, 2001: FCU. OUT OF ADJ. RIGHT ENGINE FLAME-OUT DURING CLIMB FROM 390 TO 410. RESTART AT 240 CLIMB BACK TO 390, NO FURTHER PROBLEM. MAINTENANCE PERFORMED DENSITY ADJUSTMENT. - [SDR 2001F00736](https://openairdocs.org/sdr/2001F00736), Oct 3, 2001: SWITCH. FAILED. ON FINAL APPROACH INTO JVL, LANDING GEAR FAILED TO EXTEND NORMALLY. LANDING WAS ASSURED AFTER SUCCESSFUL ALTERNATE GEAR EXTENSION. PROBLEM WAS NORMAL SWITCH WEA - [SDR 20010411CW006](https://openairdocs.org/sdr/20010411CW006), Mar 21, 2001: CONTROL CABLE. BINDING. LT THROTTLE BINDING WHEN ADVANCED FOR TAKEOFF POWER. FOUND BINDING OF LEFT AFT ENGINE THROTTLE CONTROL DUE TO POSSIBLE EXCESSIVE ROUTING OF CONTROL TO CONFORM T - [SDR 31101147KH](https://openairdocs.org/sdr/31101147KH), Mar 16, 2001: WIRE. SHORTED. SHORTLY AFTER DEPARTURE, FLIGHT CREW NOTED A PUSH FORWARD ON THE YOKE. AIRCRAFT RETURNED TO AIRPORT AND LANDED. MAINTENANCE PERSONNEL DISCOVERED A WIRE CHAFFED - [SDR 20010327CW014](https://openairdocs.org/sdr/20010327CW014), Feb 1, 2001: CHECK VALVE. FAILED. CABIN COULD NOT MAINTAIN PRESSURIZATION AT FL350, MAINTENANCE PERFORMED A GROUND PRESSURIZATION FUNCTIONAL CHECK NORMALLY. A PNEUMATIC CHECK VALVE DISCOVERED WI - [SDR 20010213CW009](https://openairdocs.org/sdr/20010213CW009), Jan 10, 2001: CONTROL UNIT. MALFUNCTIONED. AC COULD NOT MAINTAIN PRESSURIZATION AND INCREASE IN CABIN ALTITUDE RESULTED IN OXYGEN MASK DROP AND AURAL WARNINGS, AS APPROPRIATE. AC DESCENDED TO FL220 AND C - [SDR 20010213CW008](https://openairdocs.org/sdr/20010213CW008), Jan 5, 2001: INDICATOR. INOPERATIVE. LEFT ENGINE OIL PRESSURE GAGE NOTED TO HAVE DROPPED AND STUCK AT 12 PSI, OIL PRESSURE ON TAXI FOR TAKEOFF. AC WAS RETURNED TO MAINTENANCE AND A SERVICEABLE OIL - [SDR 20001027SH002](https://openairdocs.org/sdr/20001027SH002), Mar 8, 2000: TIRE. FAILED. AIRCRAFT HAD 2 FLAT TIRES AFTER LANDING. ANTI-SKID SYSTEM WAS NON-OPERATIONAL (DEFERRED STATUS) AND POSSIBLE POOR RUNWAY BRAKING CAUSE OF TIRE FAILURE. TIRE AND - [SDR 99ZZZX485](https://openairdocs.org/sdr/99ZZZX485), Jan 8, 1999: FUEL CONTROL. MALFUNCTIONED. LEFT ENGINE COMPRESSOR STALLNG FROM ROTATION TO 2,000 FEET. REPLACED LEFT FUEL CONTROL UNIT. GROUND RUN, LEAK CHECKED, AND TEST FLEW AIRCRAFT, OPS CHECKED GOOD. - [SDR 98ZZZX3627](https://openairdocs.org/sdr/98ZZZX3627), Aug 12, 1998: PUMP. FAILED. APPROVED AIRCRAFT ACCESSORIES INC., CRS US2R225L OVERHAULED HYDRAULIC PUMP. WHEN INSTALLED, PUMP WOULD NOT PICK UP PRESSURE. BLED PUMP WITH NO RESULTS. WHEN THE - [SDR 99ZZZX5](https://openairdocs.org/sdr/99ZZZX5), Jun 22, 1998: STRINGER. CRACKED. DISCOVERED SEVERAL SMALL CRACKS INSIDE HORIZONTAL STABILIZER LOCATED AT LEFT AND RIGHT BL 19.40. CRACKS WERE NOTED DURING SCHEDULED INSPECTION OF THE AREA. A RE - [SDR 97ZZZX3178](https://openairdocs.org/sdr/97ZZZX3178), May 5, 1997: SKIN. CORRODED. SEVERE CORROSION IN SKIN PANEL AT RIGHT HAND AFT FUSELAGE BETWEEN FRAMES 23 AQND 26 IN AN AREA BELOW ENGINE PYLON. CORROSION POSSIBLY DUE TO TRAPPED MOISTURE IN - [SDR 12196825AA](https://openairdocs.org/sdr/12196825AA), Dec 2, 1996: SWITCH. MALFUNCTION. LEFT LANDING GEAR DOWN LIGHT INTERMITTENT. COULD NOT DUPLICATE DISCREPANCY. REPLACED LEFT MAIN GEAR DOWN AND LOCK WITH NEW AS A PRECAUTIONARY MEASURE. ADJUSTED - [SDR 96ZZZX6173](https://openairdocs.org/sdr/96ZZZX6173), Nov 12, 1996: TAILPIPE. CRACKED. LT FIRE LIGHT ILLUMINATED AT ALTITUDE. REPLACED CRACKED TAIL PIPE WITH SERVICEABLE UNIT. - [SDR 96ZZZX397](https://openairdocs.org/sdr/96ZZZX397), Jan 5, 1996: STRUT. GROOVE FAILED. LEFT LANDING GEAR STRUT SNAP-RING GROOVE FAILED. SUSPECT CAUSE - EXTREME ROUGHNESS ON RUNWAY. - [SDR 1239563CK](https://openairdocs.org/sdr/1239563CK), Dec 6, 1995: O-RING. LEAK. ON APPROACH TO LANDING, HYDRAULIC PRESSURE WAS NOTED TO BE ZERO. LANDING GEAR WAS EXTENDED USING EMERGENCY AIR SYSTEM AND A NORMAL LANDING WAS MADE. EXAMINATION - [SDR 95ZZZX4076](https://openairdocs.org/sdr/95ZZZX4076), Jul 24, 1995: BATTERY. OVERHEAT. BATTERY 140 DEGREES AND 160 DEGREES WARNING LIGHT ILLUMINATED. UNEVENTFUL LANDING ACCOMPLISHED. REPLACED NR 2 BATTERY WITH SERVICEABLE UNIT. - [SDR 95ZZZX2825](https://openairdocs.org/sdr/95ZZZX2825), May 12, 1995: ACTUATOR. O-RING FAILED. HYDRAULIC SYSTEM PRESSURE WENT TO ZERO. UNEVENTFUL LANDING ACCOMPLISHED. O-RING LT MAIN GEAR ACTUATOR LEAKING. INSTALLED NEW O-RING, LANDING GEAR HYDRAULIC RESE - [SDR 95ZZZX1143](https://openairdocs.org/sdr/95ZZZX1143), Feb 10, 1995: FOLLOW UP. DEFECTIVE. AIRCAFT TT 11,018.1 HRS, LANDINGS 10,996. FOUND NOSE STRUT UNDER-INFLATED AND NOSE STEERING DOES NOT CENTER. AFTER TAKEOFF, HAD 'UNSAFE GEAR' LIGHT ON NOSE GEAR - [SDR 95ZZZX1142](https://openairdocs.org/sdr/95ZZZX1142), Feb 10, 1995: PC BOARD. DEFECTIVE. AIRCAFT TT 11,018.1 HRS, LANDINGS 10,996. FOUND NOSE STRUT UNDER-INFLATED AND NOSE STEERING DOES NOT CENTER. AFTER TAKEOFF, HAD 'UNSAFE GEAR' LIGHT ON NOSE GEAR - [SDR 95ZZZX675](https://openairdocs.org/sdr/95ZZZX675), Jan 23, 1995: TUBE. FAILED. AIRCRAFT AT LEVEL FLIGHT 41,000 FEET WHEN ENGINE SUDDENLY FLAMED OUT. PILOT REQUESTED DESCENT AND WAS GRANTED. PILOT ATTEMPTED RELIGHT SEVERAL TIMES, UNSUCCESSF ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Learjet 24](https://openairdocs.org/model/learjet-24): 7 registered aircraft, registry code 5170302 --- 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.