Lycoming ALF502R-5

Service difficulty reports · 784

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 = 'ALF502R5'
  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 AU001229Transformer · faulty(AUS) SUSPECT NR 1 AND NR 2 TRANSFORMER RECTIFIER UNITS (TRU) HAD INTERMITTENT FAULTS CAUSING CIRCUIT BREAKERS TO TRIP. SUSPECT ALSO THAT CONTACTORS XD4 AND XD5 WERE INTERMITTENT IN OPERATION.Dec 4, 2000 · Bag BAE146200A · DC Rectifier/ConverterSDR AU001141Skin · damaged(AUS) WING TOP SKIN PANELS CONTAINED NUMEROUS DRILL MARKED AREAS. FOUND DURING INSPECTION IAW AD/BAE146/66 AND ANSETT ENGINEERING RELEASE BA6-57-10-9C. NO CORROSION WAS FOUND.Nov 27, 2000 · Bag BAE146200A · Wing, Plate/SkinSDR AU001102Antenna · split(AUS) UPPER TCAS ANTENNA SPLIT. FOUND DURING REMOVAL FOR AIRFRAME CORROSION INSPECTION. ANTENNA HAD BEEN ATTACHED USING PRC1422.Nov 22, 2000 · Bag BAE146200A · Air Collision Avoidance SystemSDR CA010108015Bolt · leaking(CAN) MAINTENANCE INVESTIGATION OF A FUEL LEAK FROM THE LT WING NR 3 FLAP TRACK ATTACH POINT AT THE REAR WING SPAR REVEALED THAT THE ATTACH BOLTS WERE BELOW RECOMMENDED TORQUE. BOLT TORQUE WAS BROUGHT UP TO SPECS AND HEADS RESEALED INSIDE THE FUEL TANK. THE AINov 22, 2000 · Bac 146200A · Wing StructureSDR CA001214014Fuel Tank · leaking(CAN) INVESTIGATION OF A FUEL LEAK FROM THE LEFT HAND WING OUTBOARD FLAP CANOE REVEALED THAT THE LEAK ORIGINATED AROUNG THE FORWARD ATTACH BOLTS FOR THE OUTBOARD FLAP CARRIAGE TRACK. TANK ACCESS WAS GAINED, AND THE BOLTS WERE RETORQUED AND RESEALED. THE AIRCRANov 18, 2000 · Bac 146200A · Fuel StorageSDR CA001214013Seal · deteriorated(CAN) THE FLIGHT CREW REPORTED AN AIRFRAME VIBRATION BETWEEN 235 - 250 KNOTS IN CLIMB. INVESTIGATION REVEALED THAT THE AERODYNAMIC SEALS ON WING ROOT PANELS 285/286 CT WERE BADLY DETERIORATED. THE SEALS WERE REPLACED AND A SATISFACTORY TEST FLIGHT PERFORMED.Nov 17, 2000 · Bac 146200A · Aerodynamic FairingsSDR CA001214012Turbine · failed(CAN) THE FLIGHT CREW REPORTED A FIRE IN THE TAIL PIPE OF NR4 ENGINE AFTER START DURING PUSHBACK FROM THE GATE. THE ENGINE WAS SECURED AND BOTH FIRE BOTTLES DETONATED. THE ENGINE WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.INITIAL TEARDOWN INDICATED Nov 16, 2000 · Bac 146200A · Turbine SectionSDR CA001214010Vane · cracked(CAN) DURING SCHEDULED BORESCOPE INSPECTION, CRACKS EXCEEDING MAINTENANCE MANUAL LIMITS WERE FOUND AROUND THE BASE OF THE GUIDE VANES OF THE FIRST TURBINE NOZZLE. THE ENGINE WAS REPLACED.Nov 14, 2000 · Bac 146200A · Turbine SectionSDR CA001214015Pump · leaking(CAN) INVESTIGATION OF A HYDRAULIC FLUID LEAK FROM THE NR 2 ENGINE RESULTED IN REPLACEMENT OF THE ENGINE DRIVEN HYDRAULIC PUMP, WHICH WAS FOUND TO BE LEAKING FROM THE SHAFT SEAL. THIS UNIT HAD ONLY ACCUMULATED 272 HOURS AND 172 CYCLES SINCE REPAIR FOR A SIMILNov 12, 2000 · Bag BAE146200A · Hydraulic Pump (Electric/Engine), MainSDR CA001214011Fuel Line · leaking(CAN) INVSTIGATION OF A FUEL LEAK IN THE NR1 ENGINE PYLON RESULTED IN THE REPLACEMENT OF THE WING TO PYLON FUEL PIPE ELBOW. IT WAS FOUND TO BE PITTED ON THE INSIDE BORE IN THE AREA WHERE THE FUEL PIPE O-TING SEATS IN THE ELBOW AND IS PRONE TO MINOR ACCUMULATIONov 1, 2000 · Bac 146200A · Aircraft Fuel Distribution SystemSDR AU001275Spar · corroded(AUS) LT AND RT WING FORWARD AND AFT SPARS CONTAINED PITTING CORROSION IN AREA BETWEEN RIB NR 13 AND RIB NR 18.Oct 25, 2000 · Bag BAE146200A · Wing SparSDR AU001029Generator · faulty(AUS) NR 1 GENERATOR WENT OFF LINE. GENERATOR CONTROL UNIT AND LINE CONTACTOR CHANGED AND WIRING INSPECTED WITH NIL FAULTS FOUND. INVESTIGATION CONTINUING.Oct 23, 2000 · Bag BAE146100A · AC Generation SystemSDR CA001103003O-Ring · leaking(CAN) DURING ROUTINE MAINTENANCE, AN OIL LEAK WAS OBSERVED AT THE RESTRICTOR BODY FOR THE NR 2 BEARING PACK IN THE NR 4 ENGINE. A NEW O-RING AND SEALING WASHERS WERE INSTALLED AND THE AIRCRAFT WAS RETURNED TO SERVICE.Oct 22, 2000 · Bag BAE146200A · Engine (Turbine/Turboprop)SDR AU000998Terminal · loose(AUS) NR 1 GENERATOR PHASE TERMINAL LOOSE. DURING TROUBLE SHOOTING FAULTS WERE ALSO FOUND IN THE BUS TRANSFER SYSTEM.Oct 17, 2000 · Bag BAE146300A · AC Generator-AlternatorSDR AU000884Windshield · cracked(AUS) COPILOTS A WINDSHIELD OUTER PANE CRACKED.Sep 19, 2000 · Bag BAE146200A · Flight Compartment WindowsSDR AU000934Windshield · cracked(AUS) WINDSHIELD CRACKED.Sep 19, 2000 · Bag BAE146200A · Flight Compartment WindowsSDR AU000935Cdu · faulty(AUS) GPS CENTRAL DATA UNIT (CDU) LOCKED UP. GPS WOULD NOT TRACK.Sep 16, 2000 · Bag BAE146100A · Flight Management Computing Hardware SystemSDR AU001018Bleed Band · out of adj(AUS) NR 2 ENGINE BLEED BAND OUT OF ADJUSTMENT.Sep 16, 2000 · Bac 146200A · Compressor Bleed ValveSDR AU001019Windshield · cracked(AUS) FIRST OFFICERS B WINDSHIELD OUTER PANE SHATTERED. CRACKING HAD INITIATED FROM A LOCALISED HOT SPOT ALONG THE LOWER EDGE OF THE WINDSHIELD ADJACENT TO THE BUS BAR AREA.Sep 8, 2000 · Bag BAE146300A · Flight Compartment WindowsSDR AU000827Transducer · faulty(AUS) ENGINE VIBRATION TRANSDUCER PLUG BROKEN. PINS MISSING AND BAREWIRES SHOWING. ENGINE HAD BEEN RECEIVED FROM USA.Sep 7, 2000 · Engine Vibration AnalyzerSDR CA000925015Actuator · failed(CAN) THE FLIGHT CREW REPORTED THAT NR 3 ENGINE LOW OIL PRESS LIGHT CAME ON AFTER LANDING. THE ENGINE HAD SHUT ITSELF DOWN DURING THE LANDING. INVESTIGATION REVEALED THAT THE NR 3 ENGINE TMS ACTUATOR HAD FAILED OUT OF THE CENTRED POSITION, CAUSING THE ENGINE TSep 7, 2000 · Bag BAE146200A · Power LeverSDR AU000810Fuel Tank · corroded(AUS) LT WING TANK HAD EVIDENCE OF PITTING CORROSION.Sep 6, 2000 · Bac 146100A · Fuel StorageSDR AU000829Wire · faulty(AUS) GROUND CALL HORN WIRE FAULTY.Sep 6, 2000 · Bag BAE146100A · Communications System WiringSDR AU000828Light · failed(AUS) LAMP HOLDERS LOCATED AT ROW 14 AND ROW 10 ON THE RT SIDE WALLS BURNED OUT.Sep 5, 2000 · Bag BAE146100A · Passenger Compartment LightingSDR AU000826Connector · dirty(AUS) NR 2 ENGINE INTAKE LOW PRESSURE SWITCH CANNON PLUG DIRTY.Sep 4, 2000 · Bac 146200A · Air Intake Anti/De-Ice SystemSDR AU000836Switch · contaminated(AUS) NR 2 ENGINE INTAKE LOW PRESSURE WARNING SWITCH PLUG DIRTY.Sep 4, 2000 · Bac 146200A · Air Intake Anti/De-Ice SystemSDR AU000943Indicator · fluctuates(AUS) NR 2 ENGINE EGT INDICATOR FLUCTUATING.Sep 4, 2000 · Bag BAE146100A · Engine EGT/TIT Indicating SystemSDR AU000630Engine · vibrates(AUS) NO1 ENGINE VIBRATION WITH INDICATION OF 1.5. GROUND CHECKS COULDFIND NO PROBLEMS AND AIRCRAFT RETURNED TO SERVICE. SUSPECT ICING.Sep 1, 2000 · Bag BAE146100A · Engine (Turbine/Turboprop)SDR AU000631Turbine Nozzle · failed(AUS) NR 2 ENGINE FAILED ON TAKEOFF WITH THE TGT EXCEEDING 1000 DEGREESC. SUSPECT CAUSED BY FAILURE OF THE SECOND STAGE HP TURBINE NOZZLE.Sep 1, 2000 · Bag BAE146100A · Turbine SectionSDR AU000632Circuit Breaker · stuck(AUS) AC HYDRAULIC PUMP REMOTE CONTROL CIRCUIT BREAKER STUCK IN THE ON' POSITION.Sep 1, 2000 · Bac 146200A · Hydraulic System, MainSDR AU000651Seal · leaking(AUS) ENGINE NR 1 BEARING SEAL LEAKING.Sep 1, 2000 · Bag BAE146100A · Turbine Engine Compressor SectionSDR AU000689Indicator · faulty(AUS) AIR SPEED INDICATOR FAULTY.Sep 1, 2000 · Bag BAE146100A · Airspeed/Mach IndicatorSDR AU000690Spar · cracked(AUS) LT AND RT WINGS FORWARD AND REAR SPARS CRACKED IN AREA LOCATED OUTBOARD OF RIB NR 13.Sep 1, 2000 · Bag BAE146100A · Wing SparSDR AU000706Jackscrew · faulty(AUS) FLAPS UNABLE TO BE MOVED FROM THE UP' POSITION. SUSPECT FAULTY RT OUTBOARD SCREWJACK.Sep 1, 2000 · Bac 146200A · Trailing Edge Flap ActuatorSDR AU000713Damper · faulty(AUS) ELEVATOR GUST DAMPER ASSEMBLY FAULTY.Sep 1, 2000 · Bag BAE146200A · Elevator Control SystemSDR AU000728Hose · failed(AUS) NR 2 ENGINE HYDRAULIC PUMP PRESSURE HOSE FAILED. LOSS OF HYDRAULIC FLUID.Sep 1, 2000 · Bac 146200A · Hydraulic System, MainSDR AU000729Control Cable · corroded(AUS) RT UPPER AILERON TRIM CABLE CORRODED AND BROKEN IN AREA OFOUTBOARD PULLEY LOCATED AT WING RIB NR 14.Sep 1, 2000 · Bac 146200A · Aileron Tab Control SystemSDR AU000731Power Lever · stuck(AUS) NR 3 ENGINE THRUST LEVER STUCK AT CRUISE POWER. INVESTIGATIONCOULD FIND NO CAUSE OF DEFECT.Sep 1, 2000 · Bag BAE146300A · Power LeverSDR CA000925014Fan · failed(CAN) MAINTENANCE INVESTIGATION INTO A SMELL IN THE CABIN REVEALED A VERY NOISY AVIONICS COOLING FAN WHICH WAS EMITTING AN ELECTRICAL ODOR. THE FAN WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. THE SUBJECT FAN WAS AN EXCHANGE UNIT WHICH HAD ONLY BEEN Sep 1, 2000 · Bag BAE146200A · Air Distribution FanSDR CA000925013Brake Assy · dragging(CAN) DURING ROUTINE MAINWHEEL REPLACEMENT, THE NR 3 BRAKE ASSY WAS FOUND TO BE DRAGGING WITH BRAKES OFF. THE BRAKE ASSY WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.Aug 31, 2000 · Bag BAE146200A · Landing Gear Brake SystemSDR CA001006006Bolt · corroded(CAN) WHILE REPLACING BOTH NR 1 FLAP CARRIAGE LINK ASSEMBLIES BADLY PITTED AND CORRODED ATTACHMENT BOLTS WERE DISCOVERED. THEIR CONDITION RENDERED THEM UNSERVICEABLE AND WERE REPLACED WITH NEW BOLTS.Aug 30, 2000 · Bag BAE146200A · Leading Edge DevicesSDR CA000901009Apu · malfunctioned(CAN) NR 2 AIR CONDITIONING PACK CONTAMINATED CAUSING SMELL IN CABIN. APU REPLACED. APU FUNCTION CHECKED AND NO SIGN OF SMELL.AIRCRAFT RETURNED TO SERVICE.Aug 12, 2000 · Bac 146200A · Airborne Auxiliary Power Unit (APU) SystemSDR CA000804004Starter · failed(CAN) APU FAILED TO START. FUEL LEAK AND SMALL AMOUNT OF SMOKE DETECTED AT THE REAR OF THE AIRCRAFT. APU EXTINGUISHER ACTIVATED. APU STARTER REPLACED DUE TO HEAT DAMAGE. CURRENT LIMITERS REPLACED IN CARGO BAY P/N ANL-275. IGNITOR AND COMBUSTION CHAMGER CLEANEDJul 27, 2000 · Bag BAE146200A · APU Start/Ignition SystemSDR CA000731014Spoiler · damaged(CAN) CRACK FOUND IN LEFT HAND INBOARD SPOILER LEADING EDGE T CENTER HINGE CUT OUT. PERMANENT REPAIR COMPLETED IN ACCORDANCE WITH BARA/AVR/5099/00 AND R.I.L. HC579N9043. N.D.T. INSPECTED SERVICEABLE AND AIRCRAFT RETURNED TO SERVICE.Jul 26, 2000 · Bag BAE146200A · Drag Control SystemSDR CA000804003Gyro · failed(CAN) ON THREE OCCASIONS WITH AUTOPILOT ENGAGED AND AIRCRAFT FLYING STRAIGHT AND LEVEL, AUTOPILOT COMMANDED A RAPID PITCH FORWARD ON THE CONTROL COLUMN AND THEN RETURNED TO NORMAL, NEUTRAL POSITION. NR 1 VERTICAL GYRO REPLACED AND AIRCRAFT RETURNED TO SERVICE.Jul 26, 2000 · Bag BAE146200A · Attitude and Direction Data SystemSDR CA000731013Pump · leaking(CAN) WHEN LEFT INNER FUEL PUMP WAS TURNED ON FOR APU TIME, NR 2 ENGINE BEGAN LEAKING FUEL. THE NR 2 PUMP WAS THEN TURNED OFF UNTIL REQUIRED FOR ENGINE START. NR 2 ENGINE FCU RIGGING CHECKED, NR 2 BOOST PUMP RUN FOR 15 MINS. NO FUEL LEAKAGE NOTED. FUNCTION CHJul 24, 2000 · Bag BAE146200A · Engine Fuel PumpSDR AU000936Trim Tab · damaged(AUS) LT AILERON TRIM TAB DAMAGED DURING GROUND OPERATION.Jul 16, 2000 · Bag BAE146100A · Aileron TabsSDR CA000731011Actuator · failed(CAN) AFTER TAKEOFF, WHEN GEAR SELECTED UP, GEAR REMAINED DOWN AND LOCKED. AIRCRAFT RETURNED TO BLOCK.GEAR SELECTOR VALVE MOTOR AND GEAR SELECTOR VALVE.(P/N HTE9681-1 S/N 291VB145) REPLACED AND AIRCRAFT RETURNED TO SERVICE. REF P101337Jul 15, 2000 · Bag BAE146200A · Landing Gear ActuatorSDR CA000706020Vane · failed(CAN) THE FLIGHT CREW REJECTED TAKEOFF DUE TO NR 1 ENGINE EXHIBITING AN EXCESSIVE VIBRATION INDICATION, AS WELL AS A LOUD BUZZING SOUND. THE VIBRATION REMAINED WHEN POWER WAS REDUCED TO GROUND IDLE. THE ENGINE WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVJul 6, 2000 · Bag BAE146200A · Engine (Turbine/Turboprop)SDR CA000809003Wheel · broken(CAN) DURING INSPECTION A PIECE 15 IN LENGTH WAS BROKEN AWAY FROM THE WHEEL BEAD AREA.TIRE WAS STILL INFLATED WHEEL ASSEMBLY REMOVED AND REPLACED WITH SERVICEABLE UNIT.Jul 3, 2000 · Bag BAE146200A · Wheel/Ski/Float
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