Learjet 35A

Service difficulty reports · 726

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duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = '35A'
  ORDER BY difficulty_date DESC"

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SDR 99ZZZX1376Bearing · roughAILERONS FELT A LITTLE STIFF IN FLIGHT. CHECKED FOR FREEDOM OF MOVEMENT AND GROUND BY MOVING AILERONS UP AND DOWN BY HAND. NO ABNORMALITIES NOTED. WHILE RESTRICTING AILERON MOVEMENT BY HOLDING PRESSURE ON THE AILERON SURFACE, ROUGH BEARINGS WERE NOTED. ALLMar 11, 1999 · N593LR · Lear 35A · Aileron Control SystemSDR 99ZZZX1359Line · leakingDURING OPERATIONAL CHECKS OF HYDRAULIC SYSTEM (AFTER REPLACEMENT OF FLAP CONTROL VALVE), NOTED A HYDRAULIC LEAK OUT OF AN ALUMINUM HYDRAULIC LINE, PN 260-7003-368, FOR THE FLAP EXTEND SYSTEM. THE LEAK WAS FROM A CORROSION PIN HOLE ABOAUT 1.50 INCHES FROM END Mar 10, 1999 · N258G · Lear 35A · Hydraulic System, MainSDR 99ZZZX1374Wire · brokenWHILE C/W LEARJET SB 35/36-52-10 (UPPER CABIN DOOR TORSION BAR ARM ASSEMBLIES); IT WAS FOUND THAT THE SHEATHING AND ALL THE WIRES INSIDE IT WERE BROKEN. THESE WIRES ARE FOR THE UPPER DOOR LATCH PIN SWITCHES. ACCORDING TO CHAPTER 52-10-10, PAGE 3 OF THE LEARJMar 9, 1999 · N111KK · Lear 35A · Door System WiringSDR 99ZZZX1162Master Warning · malfunctionedMASTER WARNING PANEL LIGHTS ILLUMINATED PRIOR TO TAKEOFF. TROUBLESHOT TO WIRE SHORTING OUT ON RADIO RACK. REPAIRED WIRE IN WIRE BUNDLE. OERATIONS CHECKED OK.Mar 1, 1999 · N68UW · Lear 35A · Central WarningSDR 99ZZZX1170Impeller · crackedDURING ROUTINE CZI (COMPRESSOR ZONE INSPECTION), HIGH PRESSURE COMPRESSOR IMPELLER WAS SENT TO ALLIED SIGNAL FOR EDDY CURRENT INSPECTION OF SEAL RELIEF/BORE AREA PER ALERT SB A72-3641. SUBSURFACE DISCONTINUITY WAS REVEALED BY THE INSPECTION. PART IS SCRAP. Feb 15, 1999 · N97AN · Lear 35A · Turbine Engine Compressor SectionSDR CA990223011Pump · failed(CAN) ON FINAL WITH FULL FLAPS, THE LEFT SPOILER ON REMAINED EXTENDED WHEN CONTROLS WERE RETURNED TO NEUTRAL. AIRCRAFT LANDED OK. NR 2 HYDRAULIC PUMP HAD FAILED AND CONTAMINATED SYSTEM WITH DEBRIS WHICH CLOGGEDTHE SPOILER FILTER. THIS CAUSED SPOILER TO FREFeb 10, 1999 · Lear 35A · Hydraulic Pump (Electric/Engine), MainSDR 99ZZZX1168Valve · inoperativePILOT REPORTED SMOKE IN CABIN. AIRCRAFT RETURNED TO ITS STARTING POINT (ORF). PROBLEM ISOLATED TO GEARBOX BREATHER VALVE STUCK CLOSED. UNIT REPLACED AND OPERATIONAL CHECK GOOD.Jan 21, 1999 · N802JW · Lear 35A · Turbine Engine Accessory DriveSDR 98ZZZX4711Fcu · malfunctionedABOVE 30,000 FEET, ENGINE, S/N P-74282, WOULD BEGIN TO SURGE IN ALL ENGINE PARAMETERS. AS THE AIRCRAFT INCREASED ALTITUDE, THE SURGING WOULD BECOME MORE INTENSE. AT THIS POINT (APPROXIMATELY 39K), THE PILOT BROUGHT THE POWER LEVER TO IDLE AND THE ENGINE SHUTDec 15, 1998 · N35NW · Lear 35A · Fuel Control/Turbine EnginesSDR CA981209006Balance Patch · missing(CAN) ON LANDING, PILOT REPORTED SEVERE NOISE AND VIBRATION FROM NOSE WHEEL. RUBBER BALANCE PATCH ON INSIDE HAD TORN OFF. PART TC: 37.Dec 9, 1998 · Lear 35A · TireSDR 99ZZZX186Switch · malfunctionedAIRCRAFT WAS ON APPROACH TO BVR, SELECTED GEAR DOWN, HAD NO GREEN LIGHT ON LEFT MAIN GEAR, DID A FLY-BY, TOWER REPORTED GEAR DOWN BUT NO LANDING LIGHT. AIRCRAFT LANDED. WHEN LANDING, AS SOON AS AIRCRAFT TOUCHED DOWN, LEFT GREEN LIGHT CAME ON. MAINTENANCE FONov 24, 1998 · N27TT · Lear 35A · Landing Gear Position and WarningSDR 99ZZZX1586Connector · malfunctionedNOSE WHEEL STEERING WAS FOUND ERRATIC. FOUND WIRING HARNESS TO FOLLOW-UP POTENTIOMETER DAMAGED AND CONNECTOR CORRODED. REPLACED FOLLOW-UP. REINSTALLED NOSE GEAR ASSY. ACFT TT: 8,638.5.Nov 23, 1998 · N51LC · Lear 35A · Landing Gear Steering SystemSDR 99ZZZX601Fuel Control · malfunctionedAIRCRAFT WAS ON A FAR PART 91 COMPANY FLIGHT, DEPARTING DAL - JUST AFTER TAKEOFF, THE LEFT LOW FUEL PRESSURE ANNUNCIATOR LIGHT ILLUMINATED FOLLOWED BY AN ENGINE SURGE THEN ENGINE ROLLED BACK TO 62 PERCENT N1 AND STABILIZED. LEFT ENGINE COMPUTER ANNUNCIATOR LINov 6, 1998 · N21NG · Lear 35A · Fuel Control/Turbine EnginesSDR 98ZZZX4309Fan Blade · failedON DESCENT INTO HWO, PILOTS FELT RT ENGINE VIBRATION. PILOTS REDUCED POWER AND LANDED HWO. FOUND FRONT FAN BLADE MID-SPAN DAMPENER MISSING FROM FAN BLADE. CYCLES: 3,766.Oct 19, 1998 · N108RB · Lear 35A · Turbine Engine Compressor SectionSDR 98ZZZX4135Retainer · failedDURING ENGINE DISASSEMBLY, DISCOVERED ONE TANG OF RING, RETAINING HAD SEPARATED FROM RING. SEPARATED PIECE WAS FOUND LODGED IN THE FAN GEARBOX ELEMENT OF OIL PUMP. RING RETAINING P/N 3073754-1 WAS INSTALLED 2,639.7 HOURS PREVIOUSLY DURING INCORPORATION OF SBOct 7, 1998 · N431AS · Lear 35A · Turbine Engine Oil SystemSDR 98ZZZX4042Actuator · rupturedFLIGHT CREW REPORTED A LOSS OF HYDRAULIC PRESSURE IN-FLIGHT. AFTER LANDING, THE MECHANIC INSPECTED THE ACFT AND DETERMINED THE LT FLAP ACTUATOR HOUSING HAD RUPTURED CAUSING A LOSS OF HYDRAULIC FLUID.Oct 5, 1998 · N500DS · Lear 35A · Trailing Edge Flap ActuatorSDR 98ZZZX4190Bolt · misinstalledNOSE GEAR DOOR MECHANISM ROD ATTACH POINT BOLT P/N AN 24-30 TO NOSE STRUT INCORRECTLY INSTALLED ACCORDING TO LEARJET 35A IPC CH 32-23-05, FIG 05, ITEM -21, PG 0, AND IS CAUSING GOUGING TO THE SKIN AT FRAME 5, FS 160.77. GOUGING OCCURS WHEN THE BOLT HEAD IS BESep 30, 1998 · N38AM · Lear 35A · Nose/Tail Landing Gear Strut/AxleSDR 98ZZZX3631Strut · gougedNOSE GEAR DOOR MECHANISM ROD ATTACH POINT BOLT P/N AN24-30 TO NOSE STRUT BEING INCORRECTLY INSTALLED AND IS CAUSING GOUGING TO THE SKIN AT FRAME 5, BS 160.77. IN REFERENCE TO THE ILLUSTRATION, THE POSITION OF THE BOLT HEAD SHOULD BE INSTALLED WITH THE BOLT HESep 21, 1998 · N436BL · Lear 35A · Nose/Tail Landing Gear Strut/AxleSDR 98ZZZX3661Breather Valve · failedCREW NOTICED THE PRESENCE OF OILY SMOKE ENTERING CABIN DURING CRUISE FLIGHT. UNEVENTFUL LANDING WAS MADE. REPLACED FAULTY RT BREATHER PRESSURIZATION VALVE. OPERATIONALLY CHECK AND LEAK CHECKED NORMAL.Sep 17, 1998 · N72CK · Lear 35A · Air Distribution FanSDR CA980928029Bolt · cracked(CAN) TWO BOLTS FOUND CRACKED AT ENGINE REMOVAL USING NDT METHOD. THESE BOLTS ARE NOT ON A MAINTENANCE SCHEDULE REQUIRING INSPECTION. PART TC: 3,492.Sep 10, 1998 · Lear 35A · Engine Mount SectionSDR 98ZZZX4189Blade · failedDURING CRUISE, NR 2 ENGINE EXPERIENCED A RAPID RISE IN INTERSTAGE TURBINE TEMPERATURE (ITT) AND VIBRATION LEVEL. THRUST WAS REDUCED TO IDLE. A SAFE LANDING WAS MADE AT NEW ORLEANS INTERNATIONAL AIRPORT (MSY). ENGINE WAS REMOVED FROM AIRCRAFT FOR INVESTIGATISep 9, 1998 · N28MJ · Lear 35A · Turbine SectionSDR 98ZZZX3628Drag Chute · malfunctionedDRAG CHUTE DEPLOYED WITHOUT BEING ACTIVATED DURING FLIGHT. IN A DESCENT APPROXIMATELY FL 230, 320 KNOTS, INDICATED AROUND THE STW VOR. SUBMITTER STATED CAUSE UNKNOWN.Aug 1, 1998 · N811DD · Lear 35A · ParachuteSDR 98ZZZX3237Anti Ice · inoperativeWING ANTI-ICE VALVE SUTCK IN THE OPEN POSITION. THIS ALLOWED THE WING DUCT IN THE CABIN TO OVERHEAT. THE FLIGHT WAS INTERRUPTED, BUT THERE WERE NO INJURIES.Jul 31, 1998 · N183FD · Lear 35A · Airfoil Anti/De-ice SystemSDR 98ZZZM962Gasket · looseWHILE AT ALTITUDE, THE PILOTS TURNED ON THE WING AND HORIZONTAL STABILIZER ANTI-ICE SYSTEM, ONCE ENGAGED THE CREW IMMEDIATELY SMELLED 'BURNING RUBBER' AND HEARD A SOUND OF RUSHING AIR IN THE CABIN. THE WING STAB HEAT SWITCH WAS IMMEDIATELY TURNED OFF. INVESTJul 31, 1998 · N135DE · Lear 35A · Airfoil Anti/De-ice SystemSDR 99ZZZX127Weight · looseDURING TAKEOFF ROLL THERE WAS AN ABNORMAL VIBRATION FROM THE NOSE GEAR AT LIFT-OFF. THE AIRCRAFT RETURNED AND LANDED WITHOUT INCIDENT. THE NOSE WHEEL WAS DISASSEMBLED AND THE BALANCE WEIGHT HAD BROKEN LOOSE FROM INSIDE THE TIRE.Jul 27, 1998 · N553V · Lear 35A · TireSDR 98ZZZX2954Bolt · misinstalledNOSE GEAR DOOR MECHANISM ROD ATTACH POINT BOLT P/N AN24-30 TO NOSE STRUT IS BEING INSTALLED INCORRECTLY ACCORDING TO LEARJET IPC CH 32-23-05, FIG 05, ITEM -21, PAGE 0, AND CAUSING GOUGING TO THE SKIN AT FRAME 5, FS 160.77. IN REFERENCE TO THE ILLUSTRATION, THJul 24, 1998 · N40DK · Lear 35A · Nose/Tail Landing Gear Strut/AxleSDR 98ZZZX3589Sensor · failedON PRE-FLIGHT, PILOT NOTICED LEFT ENGINE FIRE DETECTION WOULD NOT TEST. TROUBLESHOT SYSTEM AND FOUND OPEN CIRCUIT IN ACCY GEARBOX AREA SENSING ELEMENT. INSTALLED NEW ELEMENT AND SYSTEM TEST NORMAL.Jul 13, 1998 · N288JP · Lear 35A · Fire DetectionSDR 98ZZZX2974Valve · stuckAT FL 430,THE WINDSHIELD OVERHEAT LIGHT CAME ON. THE PILOT IMMEDIATELY SHUT OFF THE WINDSHIELD HEAT. THE COPILOT THEN NOTICED THE RIGHT WINDSHIELD HAD MELTED. SYSTEM WAS TROUBLESHOT AND RAM AIR VALVE FOR W/S HEAT SYSTEM WAS FOUND STICKING. OVERHEAD SHUT-OFJul 1, 1998 · N196SD · Lear 35A · Windshield/Door Rain/Ice RemovalSDR 98ZZZX2566Engine · failedON APPROACH, RT ENGINE LOST OIL PRESSURE. FOUND SOME METAL IN SCREW AND OIL. SUSPECT INTERNAL ENGINE OR GEARBOX FAILURE.Jun 25, 1998 · N108RB · Lear 35A · Engine (Turbine/Turboprop)SDR 98ZZZX2726Bolt · misinstalledNOSE GERA DOOR MECHANISM ROD ATTACH PONT BOLT P/N AN24-30 TO NOSE STRUT IS BEING INCORRECTLY INSTALLED ACCORDING TO LEARJET IPC CH 32-23-05, FIG 05, ITEM 21, PAGE 0, AND CAUSING GOUGING TO THE SKIN AT FRAME 5, FS 160.77. IN REFERENCE TO THE ILLUSTRATION, THE Jun 17, 1998 · N365N · Lear 35A · Landing Gear Door Retract SectionSDR 98ZZZX1687Floodlight · burnedSMOKE NOTED AT INSTRUMENT GLARESHIELD DETERMINED TO BE FROM FLUORESCENT FLOODLIGHT. PORTION OF FLOODLIGHT LENS (PLASTIC) WAS OVERHEATED. PLASTIC SHEATH AROUND COLD CATHODE TUBE AT POWER INPUT END WAS CHARRED/OVERHEATED. ASSY REMOVED FROM AIRCRAFT.Apr 1, 1998 · N110FT · Lear 35A · Flight Compartment LightingSDR 98ZZZX1691Line · leakingAFTER NOTING A HYDRAULIC LEAK BY THE RT MAIN GEAR WHEEL WELL, FOUND ALUMINUM HYDRAULIC LINE FOR THE FLAP RETURN SYSTEM WEEPING FROM A CORROSION PIN HOLE. THE PIN HOLE IS APPROXIMATELY 1 INCH FROM END OF LINE AND IN THE MIDDLE OF A 90 DEGREE BEND. THE LINE ISMar 31, 1998 · N258G · Lear 35A · Hydraulic System, MainSDR 98ZZZX1608Seal · failedACTUATOR SLOW TO LOCK IN (EXTENDED) 'GEAR DOWN' POSITION. LANDING GEAR POSITION DETERMINED TO BE UNLOCKED DURING APPROACH TO LANDING. SEVERAL CYCLES OF LANDING GEAR WERE ATTEMPTED. EVENTUALLY, THIS ACTUATOR DID FULLY EXTEND AND INDICATED A 'SAFE' CONDITION Feb 26, 1998 · N925DM · Lear 35A · Landing Gear ActuatorSDR 98ZZZX1007Transition Duct · failedWING LEADING EDGE ANTI-ICE DUCT IS COLLAPSED BLOCKING AIRFLOW TO THE RIGHT WING ANTI-ICE. TT: 8,961.8 HOURS.Feb 12, 1998 · N400DN · Lear 35A · Airfoil Anti/De-ice SystemSDR 98ZZZX789Vent Drain · blockedNR 2 PITOT STATIC VENT DRAINS PLUGGED WITH SILICONE. CLEANED DRAINS, INSTALLED NEW SEALS, AND CERTIFIED NR 2 PITOT-STATIC SYSTEM. AIRCRAFT TSN: 6,492.4 HOURS. AIRCRAFT LANDINGS: 5,782.Feb 10, 1998 · N32HM · Lear 35A · Pitot/Static SystemSDR 98ZZZX856Control Cable · failedPILOT ATTEMPTED TO ADVANCE LT THROTTLE FROM FLIGHT IDLE. ENGINE DID NOT RESPOND. FOUND THE CABLE ELEMENT BROKEN 6 INCHES AFT OF FUEL CONTROL POWER CONTROL ASSEMBLY.Jan 19, 1998 · N108RB · Lear 35A · Power LeverSDR 98ZZZX239Rod End · separatedAIRCRAFT CAME IN WITH REPORT STATING LEFT T/R FAILS TO STOW AFTER DEPLOY CYCLE. REMOVED ACCESS PANELS TO TROUBLESHOOT. FOUND LOWER REVERSER DOOR LINK SEPARATED FROM ROD END. AFTER A VISUAL INSPECTION OF LINK AND ROD END, ROD END ENGAGEMENT INTO LINK WAS APPJan 7, 1998 · N785JM · Lear 35A · Engine Thrust ReverserSDR 98ZZZX604Blade · failedDURING CRUISE FLIGHT AT 41,000 FEET, THE RT ENGINE APPARENTLY HAD HP BLADE FAILURE RESULTING IN IN-FLIGHT SHUTDOWN. OPERATOR DECLARED EMERGENCY AND HAD UNEVENTFUL LANDING AT TUL. DISASSEMBLY OF ENGINE CONFIRMED THE FAILURE. LOT NRS 4161, 4191, AND 4266. NODec 30, 1997 · N30HJ · Lear 35A · Turbine SectionSDR 98ZZZX314Engine · failedRIGHT ENGINE FLAMED OUT AT 430 WITH VIBRATION, DIVERTED TO TULSA. VISUAL INSPECTION OF TURBINE INDICATES SEVERE FOD.Dec 30, 1997 · N30HJ · Lear 35A · Engine (Turbine/Turboprop)SDR 98ZZZX315Engine · failedLEFT ENGINE FLAMED OUT AT FL 370, ATTEMPTED RESTART, VIBRATION DETECTED, SHUT DOWN ENGINE. DIVERTED TO BHM.Dec 19, 1997 · N30HJ · Lear 35A · Engine (Turbine/Turboprop)SDR 98ZZZX620Blade · failedDURING FLIGHT AT 41,000 FEET CRUISE, THE RT ENGINE APPARENTLY HAD HP BLADE FAILURE RESULTING IN IN-FLIGHT SHUTDOWN. OPERATOR DECLARED EMERGENCY AND HAD UNEVENTFUL LANDING IN BALTIMORE, MD. DISASSEMBLY OF ENGINE CONFIRMED THE FAILURE. NOTE: SB 72-3494 HAD BDec 7, 1997 · N727GL · Lear 35A · Turbine SectionSDR 98ZZZX537Switch · shortedFUEL BOOST SWITCH IS PART OF SB 35/36-28-11. THE SWITCH HAS AN INTEGRAL LIGHT. THE TWO WIRES FOR THE LIGHT ENTER THE SWITCH IN SUCH A WAY THEY CHAFE AT THE POINT WHERE THEY ENTER THE SWITCH. THIS CREATED A DIRECT SHORT TO GROUND OF THE POWER WIRE FOR THIS LDec 4, 1997 · N199CJ · Lear 35A · Fuel Boost PumpSDR 98ZZZX18Push Rod · corrodedCORROSION INSIDE AILERON BALANCE TAB PUSH RODS. CONDITION FOUND DURING A SCHEDULED INSPECTION. PIN HOLES WERE NOTED ON 3 OF THE 4 PUSH RODS. REPLACED ALL 4 WITH NEW RODS.Nov 17, 1997 · N831CW · Lear 35A · Aileron Tab Control SystemSDR 97ZZZX5030Inlet · crackedCRACKS WERE FOUND ON THE INSIDE OF THE ENGINE INLET AT THE FORWARD INLET RING FLANGE. CRACKS WERE FOUND DURING A PHASE A3 - 300-HOUR INSPECTION. INSPECTION REFERENCE NUMBERS 30-20-00, 71-10-10. AIRCRAFT TOTAL TIME: 7,862.3 HOURS. AIRCRAFT TOTAL CYCLES: 7Nov 5, 1997 · N20DK · Lear 35A · Engine Air Intake SystemSDR 97ZZZX5029Inlet · crackedCRACKS FOUND ON THE INSIDE OF THE ENGINE INLET AT THE FORWARD INLET RING FLANGE. CRACKS FOUND DURING A PHASE A3 - 300-HOUR INSPECTION. INSPECTION REFERENCE NUMBERS 30-20-00, 71-10-10. AIRCRAFT TOTAL TIME: 7,862.3 HOURS. AIRCRAFT TOTAL CYCLES: 7,469 HOURSNov 5, 1997 · N20DK · Lear 35A · Engine Air Intake SystemSDR 97ZZZX5188Connector · looseON APPROACH, COULD NOT GET NOSE LANDING GEAR DOWN AND LOCK LIGHT. FOUND CANNON PLUG FOR NOSE GEAR ACTUATOR LOOSE. CLEANED AND TIGHTENED PLUG. OPS CHECKS GOOD.Oct 31, 1997 · N31WR · Lear 35A · Landing Gear Position and WarningSDR 97ZZZX4680Engine · failedSHORTLY AFTER DEPARTURE, LEFT ENGINE OIL PRESSURE LIGHT ILLUMINATED, CREW VERIFIED SITUATION WITH PRESSURE GAUGE. ENGINE WAS SHUT DOWN FOR PRECAUTIONARY REASON. AIRCRAFT MADE UNEVENTFUL RETURN TO AIRPORT. CAUSE UNKNOWN. NO RECOMMENDATION AT THIS TIME.Oct 20, 1997 · N72CK · Lear 35A · Engine (Turbine/Turboprop)SDR 97ZZZX4532Pump · failedCREW WAS UNABLE TO TRANSFER FUEL OUT OF THE FUSELAGE TANK. SUSPECT CAUSE FAILED PUMP MOTOR. RECOMMEND INCREASED PRODUCT RELIABILITY THROUGH NORMAL PRODUCT IMPROVEMENT PROCESS OR RE-DESIGN OF PUMP WITH DUAL MOTORS ON COMMON SHAFT AND SOME INDICATION WHEN ONESep 11, 1997 · N50MJ · Lear 35A · Aircraft Fuel Distribution SystemSDR 97ZZZX4650Floorboard · delaminatedTHE BAGGAGE COMPARTMENT FLOOR IS CONSTRUCTED OF BONDED, HONEYCOMB MATERIAL. IT HAS TWO SECTIONS, FORWARD AND AFT, THAT ARE SPLICED TOGETHER. DURING AN A2 PHASE INSPECTION, A DELAMINATION WAS DISCOVERED INVOLVING THE UPPER SKIN OF THE FORWARD FLOORBOARD. IT Sep 1, 1997 · N88JA · Lear 35A · Fuselage Floor PanelSDR 97ZZZX3740Limiter Post · damagedPILOT REPORTED AIR CONDITIONING AS INOPERATIVE. ALSO, THAT IT WAS NOT DRAWING ELECTRICAL CURRENT. UPON INSPECTION, FOUND THE 150-AMP CURRENT LIMITER WAS NOT BLOWN, BUT THE END WAS BURNED OFF. THE DAMAGE ALSO EXTENDED TO THE STUD USED TO ATTACH THE A.C. CURREJul 31, 1997 · N43TJ · Lear 35A · DC Generating SystemSDR 97ZZZX3351Detector · false warningDURING APPROACH TO GSP, RT ENGINE FIRE WARNING ILLUMINATED MOMENTARILY. ENGINE POWER WAS REDUCED AND THE FIRE WARNING EXTINGUISHED. THE AIRCRAFT LANDED WITHOUT INCIDENT. NO DISCREPANCIES WERE FOUND. THE FIRE WARNING SYSTEM TESTS NORMAL. A & P MECHANIC AT Jul 16, 1997 · N53GL · Lear 35A · Fire Detection
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