Lycoming ALF-502 SER. series

Service difficulty reports · 66

Newest first. General aviation reporting is voluntary.

Query with SQL
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 engine_model_key = 'ALF502'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR CIEA200800002Selector Valve · failedDURING FINAL APPROACH THE FLIGHT CREW LOWERED THE LANDING GEAR AND THE NOSE GEAR DOORS OPENED BUT THE LANDING GEAR DID NOT EXTEND. THE CREW MANUALLY LOWERED THE NOSE GEAR USING THE EMERGENCY GEAR EXTENSION SYS AND THE SYS WORKED NORMAL. UPON LANDING MAINT INApr 15, 2008 · N643CR · Cndair CL600* · Landing Gear SelectorSDR WAI2008F00000Windshield · crackedON 28 NOV, 2007 AT 2100, ENROUTE AT FL 330, THE CAPTAIN NOTICED A CRACK IN THE EXTERIOR PANEL OF THE LT FWD WINDSHIELD. THE APPROPRIATE CHECKLIST WAS COMPLETED AND A SPEED REDUCTION AND DECENT REQUESTED. WHILE DESCENDING A LOUD (POP) AND SUBSEQUENT WHISTLINGDec 13, 2007 · N900LG · Cndair CL600* · Flight Compartment WindowsSDR 2007F00023Fire Loop · shortedFLIGHT CREW REPORTED LT ENGINE FIRE DETECTION FAIL LIGHT CAME ON JUST PRIOR TO ROTATION, THEN FIRE WARNING CAME ON AT 1,500 FEET DURING CLIMB. STAYED ON AFTER DISCHARGING BOTH FIRE BOTTLES. RETURNED TO BASE, AFTER LANDING, APPEARED TO BE NO FIRE. FOUND LT ENGIMar 6, 2007 · N403WY · Cndair CL6001A11 · Fire DetectionSDR WAI2007F00001Fire Loop · shortedFLIGHT CREW REPORTED LT ENGINE FIRE DETECTION FAIL LIGHT CAME ON JUST PRIOR TO ROTATION, THEN FIRE LIGHT CAME ON JUST PRIOR TO ROTATION, THEN FIRE WARNING CAME ON AT 1,500 FT DURING CLIMB. STAYED ON AFTER DISCHARGING BOTH FIRE BOTTLES. RETURNED TO BASE AFTER Mar 6, 2007 · N403WY · Cndair CL6001A11 · Fire DetectionSDR 2006FA0000563Adg · deployedAIR DRIVEN GENERATOR (ADG) UNEXPECTED DEPLOYED ON POST TAKEOFF CLIMB OUT. PRECAUTIONARY LANDING ACCOMPLISHED. ADG MECHANICALLY RETRACTED/ SAFED; AIRCRAFT FERRIED TO MAINTENANCE DEPOT. ALL WORK ACCOMPLISHED IAW MM. (K)Apr 24, 2006 · N777GD · Cndair CL6001A11 · AC Generation SystemSDR AU510001750Indicator · damaged(AUS) AIRCRAFT EXPERIENCED A HIGH SINK RATE DURING LANDING. INVESTIGATION FOUND THAT THE MAIN LANDING GEAR AND TAILSKID CONTACTED THE GROUND CAUSING DAMAGE TO THE TAIL STRIKE INDICATOR. (CASA NR 510001750)Dec 12, 2005 · Bag BAE146300A · Auxiliary Gear (Tail Skid)SDR A6WA200560016Fuel Control · unserviceableCLIMBING THRU 9000 FT NR 1 ENGINE STARTED TO WIND DOWN. BOTH N1 AND N2 WERE DROPPING, TGT APPEARED TO BE RISING. SECURED ENGINE, PERFORMED IMMEDIATE ACTION CHECKLIST C/W QRH. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE. (K)Jul 14, 2005 · N179US · Bag BAE146200A · Fuel Control/Turbine EnginesSDR CA050125011Door · deformed(CAN) THIS AIRCRAFT WAS INSPECTED, TESTED AND FOUND TO EXHIBIT UNACCEPTABLE NOSE AVIONICS ACCESS DOOR DEFORMATION IN EXTREME COLD CONDITIONS. THE DEGREE OF DOOR CORNER CURLING EXCEEDS THE MFG LIMIT FOR SKIN WAVINESS FOR RVSM CERTIFICATION. THIS CONDITION WASJan 19, 2005 · Cndair CL600* · Electrical/Electronic Compartment DoorsSDR A6WA200460019Skin · scratchedAFT CARGO DOOR SCRATCHES BEYOND THE ALLOWABLE SRM LIMITS. MAINTENANCE REQUESTED REPAIR FROM MFG SYSTEMS. MAINTENANCE CUT DAMAGED AREA OUT IAW BAE SRM 52-32-11 FIG 201 PARA 3B PER BAE FAX BARA/AVR/6767/04-DC. HFEC INSPECTION C/O ON CUT OUT REPAIR, NO CRACKS NJun 2, 2004 · N611AW · Bag BAE146300A · Cargo/Baggage DoorsSDR CA040602008Fitting · corroded(CAN) 5 YEAR DETAILED INSPECTION REVEALED CORROSION PITTING BEYOND MANUFACTURER'S LIMITS, INTERNAL, BETWEEN NLG SLIDING TUBE (P/N 200811707)AND AXLE FITTING. NEW PART INSTALLED. THE AXLE FITTING WAS PREVIOUSLY REPLACED IN JUNE 1999 DURING THE 10 YEAR RESTORATJun 2, 2004 · Cndair CL600* · Nose/Tail Landing Gear Strut/AxleSDR A6WA200460017Flap Track · wornRT NR 2 FLAP TRACK HAS WEAR BEYOND THE SRM LIMITS. MAINTENANCE REQUESTED REPAIR FROM MFG SYSTEMS REF AVMAX FAX 611-1908003. MAINTENANCE MAPPED AND SUBMITTED TO BE FOR REPAIR CRITERIA. NDT HFEC CARRIED OUT IAW BAE FAX BARA/AVR/6762/04-04-MK. NO CRACKS NOTED.May 28, 2004 · N611AW · Bac 146300A · Trailing Edge FlapsSDR A6WA200460018Flap Track · wornLT NR 2 FLAP TRACK HAS WEAR BEYOND THE SRM LIMITS MAINTENANCE REQUESTED REPAIR FROM MFG SYSTEMS REF AVMAX FAX 611-1908004. DAMAGED AREA MAPPED AND SUBMITTED TO BAE FOR REPAIR CRITERIA. NDT HFEC CARRIED OUT IAW BAE FAX BARA/AVR/6761/04-MK, NO CRACKS NOTED. DV May 28, 2004 · N611AW · Bac 146300A · Trailing Edge FlapsSDR A6WA200460016Floorbeam · crackedCRACK LOCATED IN THE LOWER RADIUS OF FLOORBEAM 33B AT LBL 62.0 INCHES. MAINTENANCE REQUESTED REPAIRS FROM MFG SYSTEMS REF AVMAX FAX 611-1908002. REPAIRED IAW BAE FAX BARA/AVR/6759/04-DC AND BARA/AVR/6752/04-02. PRIMED IAW BAE 146 AMM 20-10-11. (M)May 26, 2004 · N611AW · Bag BAE146300A · Fuselage Main, Floor BeamSDR A6WA200460015Flap Track · wornNR 2 FLAP TRACK, WEAR FOUND ON NR 2 LT LOWER ROLLER THAT MEASURES .033 INCHES DEEP. REQUESTED REPAIR FROM BAE SYSTEMS REF AVMAX FAX 607-1907002. MAINTENANCE REMOVED LOWER CARRIAGE NR 2 LEFT. ROLLERS REPLACED IAW CMM 57-50-22. CARRIAGE REINSTALLED IAW AMM 2May 12, 2004 · N607AW · Bag BAE146200A · Trailing Edge FlapsSDR A6WA200460014Fuel Control · fluctuatesWHILE IN VMC CLIMBING THROUGH 16000 FEET THE NR 3 ENGINE N1 FLUCTUATION FOLLOWED BY FUEL FLOW DROPPING TO ZERO. ENGINE WAS SHUTDOWN, REMAINDER OF FLT MIN N2 OF 8 PERCENT, N1 26, 10 PSI, OIL QUANT 3/4 FULL. MAINTENANCE REMOVED AND REPLACED NR 3 FUEL CONTROL UMay 9, 2004 · N611AW · Bag BAE146300A · Fuel Control/Turbine EnginesSDR A6WA200460013Axle · vibrationAIRCRAFT EXPERIENCED VIBRATION AFTER LANDING. MAINTENANCE REMOVED AND REPLACED RT MLG AXLE.Apr 15, 2004 · N608AW · Bac 146200A · Main Landing Gear Strut/Axle/TruckSDR A6WA200460011Flap · malfunctionedON CLIMB OUT, FLAP INOPERATIVE/ FLAP MWS ILLUMINATED IMMEDIATELY AFTER SELECTING 24-18 DEGREES, COMPLIED WITH QRH, DIVERTED. CHECKED ECU (4) ONLY ILLUMINATED, RESET FLAP SYSTEM IAW MM, SYSTEM RESET AND OPS CHECK NORMAL ON GROUND AT THIS TIME.Mar 31, 2004 · N181US · Bac 146200A · Trailing Edge Flap Control SystemSDR CA040322006Plenum · fractured(CAN) WHEN APU STARTED IT WOULD NOT ACCELERATE PAST 40 PERCENT. INVESTIGATION FOUND A LARGE BREACH OF PLENUM ASSY. NATURE OF FRACTURES APPEARS TO BE FATIGUE RELATED DUE TO VIBRATION. APU REMOVED AND FURTHER INVESTIGATION REVEALED A COMPLETELY DETACHED PIECE BRMar 11, 2004 · Cndair CL600* · APU Core EngineSDR A6WA200460004Controller · malfunctionedPRESSURIZATION WAS ABNORMAL AFTER TAKEOFF, UNABLE TO CONTROL. CORRECTIVE ACTION IN PROGRESS.Mar 4, 2004 · N608AW · Bac 146200A · Cabin Pressure ControllerSDR CA040226003Idg · leaking(CAN) OIL NOTED LEAKING FROM LT ENGINE DRAIN MAST. INTEGRATED DRIVE GENERATOR REMOVED AND ACCESSORY DRIVE GARLOCK SEAL AND IDG SHAFT O-RING REPLACED. LEAK RETURNED AT DRAIN MAST TWO DAYS LATER. IDG WAS REMOVED AND INSPECTED. THE LEAK WAS DETERMINED TO ORIGFeb 24, 2004 · Cndair CL600* · AC Generator-AlternatorSDR CA040226004Float Valve · corroded(CAN) DURING GROUND RUN MAINTENANCE NOTED A RUMBLE FROM THE RT ENGINE AT HI IDLE AND BELOW. THE ECOLOGY TANK FLOAT VALVE WAS REMOVED AND THE FLOAT WAS FOUND TO BE CORRODED AND DETERIORATED PREVENTING PROPER VALVE OPERATION. THE VALVE WAS HELD OPEN ALLOWING AIFeb 24, 2004 · Cndair CL600* · Fuel Control/Reciprocating EnginesSDR AUS20040065Harness · faulty(AUS) NR 4 ENGINE FIRE WARNING SYSTEM WIRING HARNESS FAULTY.Feb 5, 2004 · Bag BAE146300A · Fire DetectionSDR AUS20030922Hose · ruptured(AUS) LT MLG RETRACTION JACK FLEXIBLE HYDRAULIC HOSE RUPTURED. LOSS OF GREEN SYSTEM HYD FLUID.Sep 10, 2003 · Bag BAE146300A · Landing Gear Retraction/Extension SystemSDR AUS20030830Seal · failed(AUS) LT GROUND SPOILER FLOW VALVE RETURN LINE CONNECTOR O-RING SEAL LEAKING. GRADUAL LOSS OF APPROXIMATELY TEN LITRES OF HYDRAULIC FLUID.Aug 17, 2003 · Bag BAE146300A · Drag Control SystemSDR A6WA200360025Warning Light · illuminatedMWS RUDDER VALVE LIGHT IS ILLUMINATED IN FLIGHT AFTER DEPARTURE. AIR RETURN TO ORD. RESET ABD, TESTED IAW.May 1, 2003 · N292UE · Bac 146200A · Aileron Control SystemSDR A6WA200360022Structure · dentedDENTS OUT OF LIMITS ON THE RT ELEVATOR AND TABS. REPAIR REQUESTED FOR BAE SYSTEM REF AVMAX FAX 1584.Apr 25, 2003 · N290UE · Bac 146200A · Elevator, Tab StructureSDR AW6A200360021Panel · dentedDENTS OUT OF LIMITS ON THE LT WING PANEL BETWEEN RIB 14A AND 15. REPAIR REQUESTED FOR BAE SYSTEM REF.Apr 25, 2003 · N290UE · Bac 146200A · Fuselage Main, Plate/SkinSDR A6WA200360023Skin · dentedDENTS OUT OF LIMITS ON THE RT AIR BRAKE. REPAIR REQUESTED FOR BAE SYSTEM REF AVMAX FAX 1584-6900003.Apr 25, 2003 · N290UE · Bac 146200A · SpoilersSDR AUS20030410Speed Brake · faulty(AUS) UNCOMMANDED AIRBRAKE OPERATION. EXTENSIVE INVESTIGATION AND TESTING COULD FIND NO CAUSE FOR THE PROBLEM.Apr 9, 2003 · Bag BAE146300A · Drag Control SystemSDR AUS20030363Pin · damaged(AUS) LT MAIN LANDING GEAR DIRECTIONAL LINK UPPER ATTACHMENT PIN FOUND TO BE MIGRATING FROM THE LUG LOCATED AT FRAME 29. LOCKING PLATE AND PIN INCORRECTLY FITTED. MAIN LANDING GEAR IS A NEWLYOVERHAULED UNIT AND HAD ONLY JUST BEEN FITTED TO THE AIRCRAFT 48CYCLEMar 23, 2003 · Bag BAE146300A · Main Landing Gear Strut/Axle/TruckSDR A6WA200360002Smoke Detector · inoperativeDURING INSPECTION FORWARD CARGO BAY B LOOP ON NR 1 DETECTOR FAILED (POSITION 1FW). MAINTENANCE REMOVED AND REPLACED NR 1 SMOKE DETECTOR, OPERATIONAL TEST GOOD.Mar 8, 2003 · N291UE · Bac 146200A · Smoke DetectionSDR AUS20021456Wire · worn(AUS) NR 4 GENERATOR DIFFERENTIAL PROTECTION CIRCUIT WIRE XB108 CHAFED IN AREA ADJACENT TO IDG.Dec 28, 2002 · Bag BAE146300A · Electrical Power System WiringSDR A6WA200260078Bleed Band · out of toleranceUPON APPLICATION OF TAKEOFF POWER, NR 2 ENGINE DID NOT RESPOND WHILE TGT WENT TO 950 DEGREES FOR AN ESTIMATED 5 SECONDS BEFORE SECURING. MAINTENANCE FOUND NR 2 ENGINE BLEED BAND OUT OF TOLERANCE. ADJUSTED AS REQUIRED AND PERFORMED 4 POINT RUN. ALL RUNS WITHDec 23, 2002 · N616AW · Bac 146300A · Compressor Bleed ControlSDR EXO2003F00000Thrust Reverser · damagedDURING CLIMB THROUGH FL130 A LOUD BANG FOLLOWED BY RT THRUST REVERSER UNLOCK LIGHT, RETURNED TO AIRPORT. FOUND 12 O'CLOCK BALL SCREW ACTUATOR AFT ATTACH POINT FAILED CAUSING TRANSLATING STRUCTURE TO MOVE DOWN AND AFT ENOUGH TO CAUSE OTHER TWO ATTACH POINTS TONov 21, 2002 · N63HJ · Cndair CL6001A11 · Engine Thrust ReverserSDR AUS20021338Cable · chafed(AUS) NR 4 THROTTLE LEVER CABLE FOULING ON CENTER ROOF PANEL. PREVIOUS MAINTENANCE HAD BEEN CARRIED OUT FOR BATTERY PACK REPLACEMENT. PERSONNEL/MAINTENANCE ERROR.Nov 15, 2002 · Bag BAE146300A · Power LeverSDR A6WA200260045Flap · blockedZERO FLAP LANDING. REF FLAP FAULT WARNING. TOUCHDOWN SPEED, 157. BRAKES APPLIED, 100, BRAKE TEMPS , 470, BRAKE FANS OPERATING, NORMAL BRAKES WERE APPLIED, 70,000 LBS LANDING WEIGHT. MAINTENANCE FOUND LT SIDE BLOCKED, CLEARED BLOCKED CONDITION WITH BUMP BOXOct 16, 2002 · N608AW · Bac 146200A · Trailing Edge Flap Control SystemSDR A6WA200260044Floor Support · corrodedCORROSION FOUND ON FLOOR SUPPORT STRUCTURE FRAME 15 - 2.5 INCH PORT OF AIRCRAFT CENTERLINE RIL.Oct 10, 2002 · Bag BAE146300A · Fuselage Miscellaneous StructureSDR A6WA200260041Structure · dentedRIGHT FLAP INBOARD AND OUTBOARD TABS DENTED, RECEIVED CONCESSION.Oct 8, 2002 · N612AW · Bac 146300A · Trailing Edge FlapsSDR A6WA200260042Tab · dentedDENTS TO LEFT ELEVATOR AND TABS X 8 RECEIVED CONCESSION.Oct 8, 2002 · N612AW · Bac 146300A · Elevator, Tab StructureSDR A6WA200260043Tab · dentedDENTS TO RT ELEVATOR AND TABS X 34 RECEIVED CONCESSION.Oct 8, 2002 · N612AW · Bac 146300A · Elevator, Tab StructureSDR A6WA200260035Tab · dentedDENTS LEFT AILERON TABS X 9 RECEIVED CONCESSION.Oct 4, 2002 · N612AW · Bac 146300A · AileronsSDR A6WA200260036Tab · dentedDENTS RIGHT AILERON INBOARD AND OUTBOARD TABS X 32 RECEIVED CONCESSION.Oct 4, 2002 · N612AW · Bac 146300A · AileronsSDR A6WA200260037Tab · dentedDENT LEFT FLAP INBOARD TAB X RECEIVED CONCESSION.Oct 4, 2002 · N612AW · Bac 146300A · Leading Edge DevicesSDR A6WA200260038Door · dentedDENTS LEFT MAIN LANDING GEAR DOOR X 18 RECEIVED CONCESSION.Oct 4, 2002 · N612AW · Bac 146300A · Landing Gear DoorsSDR A6WA200260039Door · dentedDENTS RT MAIN LANDING GEAR X 26 RECEIVED CONCESSION.Oct 4, 2002 · N612AW · Bac 146300A · Landing Gear DoorsSDR A6WA200260040Skin · dentedDENTS RIGHT FUSELAGE X 4 RECEIVED CONCESSION.Oct 4, 2002 · N612AW · Bac 146300A · Fuselage Main, Plate/SkinSDR A6WA200260033Fuel Control · malfunctionedNR 2 ENGINE WENT SUB-IDLE ON APPROACH, HUNG AT 39-40 PERCENT NR 2 AND WOULD NOT ACCELERATE. CREW SHUT DOWN ENGINE. MAINTENANCE REMOVED AND REPLACED FUEL CONTROL.Jul 17, 2002 · N614AW · Bac 146300A · Fuel Control/Turbine EnginesSDR A6WA200260002Connector · failedENROUTE, NR 1 GENERATOR FAILED, NO VOLTS OR HZ, NR 1 AC BUSS AND AC ESSENTIAL BUSS FELL OFF LINE. NR 4 GEN FELL OFF LINE MOMENTARILY WITH AC NR 2 BUSS OFF LINE ALSO. RESET NR 4 GENERATOR BUT ONLY ABLE TO REGAIN AC NR 2 BUSS. STARTED APU, APU GENERATOR SHOWFeb 5, 2002 · N609AW · Bac 146200A · AC Generation SystemSDR A6WA200100047Control Box · failedNR 1 ENGINE FAILED IN FLIGHT, NO LEAKS NOTED OR DAMAGE NOTED. MAINTENANCE REMOVED AND REPLACED THE HIGH AND LOW PRESSURE FUEL FILTERS, FUEL CONTROL AND PRIMARY OVERSPEED CONTROL BOX.Aug 10, 2001 · N612AW · Bac 146300A · Turbine GovernorSDR AUS20010766Connector · loose(AUS) NR 4 ENGINE VIBRATION HARNESS PLUG LOOSE.Jul 19, 2001 · Bag BAE146300A · Engine Indicating System
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