Lycoming IO-540-AE1A5

Service difficulty reports · 924

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 = 'IO540AE1A5'
  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 CA090127002Line · chafedDURING A VISUAL INSPECTION ON A 100 HR, THE MAIN FUEL FEED LINE WAS FOUND SMOKING THOUGH THE AFT FIRE WALL. UPON FURTHER INSPECTION OF FUEL LINE THE SMALL GROMMET/BUSHING WAS FOUND WORN THROUGH CAUSING THE FIRE WALL SUPPORT TO CHAFE INTO THE LINE. THE LINE WJan 21, 2009 · Robsin R44RAVENII · Aircraft Fuel Distribution SystemSDR CA090116013Bracket · crackedDUE TO PAST ISSUES WITH ELT`S GOING OFF, THE ELT`S WERE FOUND TO BE AT THE INCORRECT CLOCK ANGLE. THE ELT WAS REPOSITIONED TO THE PROPER ANGLE, WHICH WE THINK MAY HAVE CAUSED THE CRACK OVERTIME. A SMALL CRACK WAS FOUND IN THE BOTTOM ANGLE BRACKET RADIATING FJan 15, 2009 · Robsin R44RAVENII · Fuselage Main, Attach FittingsSDR CA090117001Pump · failedAUX FUEL PUMP FAILURE WITHIN 5.5 HOURS AFTER UNIT INSTALLED. THIS PUMP WAS ORIGINALLY REPAIRED FOR LOW PRESSURE OUTPUT AND HAS AGAIN FAILED TO PRODUCE PRESSURE. POSSIBLE QUALITY CONTROL ISSUE FROM OVERHAUL/REPAIR SHOP.Jan 15, 2009 · Robsin R44RAVENII · Fuel Boost PumpSDR CA090130013Pump · failedDURING ENGINE START, AUX FUEL PRESSURE LIGHT ILLUMINATED. PUMP WAS REPLACED AND NO FURTHER ISSUES WERE NOTED.Jan 15, 2009 · Robsin R44RAVENII · Fuel Boost PumpSDR CA090130014Pump · failedDURING DI, IT WAS NOTED THAT THE AIRCRAFT AUX FUEL PUMP FAILED. PUMP WAS REPLACED AND NO FURTHER ISSUES WERE NOTED.Jan 10, 2009 · Robsin R44RAVENII · Fuel Boost PumpSDR CA090121009Pump · unserviceableDURING START-UP, THE AIRCRAFT FAILED TO START. AUX FUEL PUMP WAS FOUND TO BE UNSERVICEABLE. PUMP WAS REPLACED AND NO FURTHER ISSUES WERE NOTED.Jan 6, 2009 · Robsin R44RAVENII · Fuel Boost PumpSDR 2009FA0000018Collector · damagedEXHAUST COLLECTORS 3 TO 1 TYPE. BULGES AND BLOW OUTS.Dec 23, 2008 · N417PK · Robsin R44RAVENII · Engine Collector/Tailpipe/NozzleSDR CA081223008Bearing · lack of lube(CAN) MAG RECEIVED FOR 500 HR INSPECTION, ROTATING MAGNET SHAFT SPUN BEFORE DISASSEMBLY TO INSPECT BEARING CONDITION & PRELOAD. NO END PLAY OR ROUGHNESS FELT, WHEN MAG WAS DISASSEMBLED, DISCOVERED THAT AT O/H IN SEPT 2007. NO GREASE HAD BEEN PACKED INTO BEARDec 23, 2008 · Robsin R44RAVENII · Magneto/DistributorSDR CA090121008Starter Gen · inoperativeSTARTER WOULD NOT ENGAGE. STARTER WAS REPLACED AND NO FURTHER ISSUES WERE NOTED.Dec 21, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR CA090121010Pump · noisyDURING SHUT DOWN A ROUGH SOUNDING NOISE SEEMED TO BE COMING FROM THE AUX FUEL PUMP. MAINTENANCE INVESTIGATED THE INCIDENT AND PUMP WAS REPLACED. NO FURTHER ISSUES WERE NOTED.Dec 21, 2008 · Robsin R44RAVENII · Fuel Boost PumpSDR CA090121011Servo · leakingDURING THE REPLACEMENT OF THE AUX FUEL PUMP, IT WAS NOTED THAT THE SERVO LEAKING. SERVO WAS REPLACED AND NO FURTHER ISSUES WERE NOTED.Dec 21, 2008 · Robsin R44RAVENII · Rotorcraft Servo SystemSDR CA090109007Housing · crackedCRACK FOUND ON THE BENDIX HOUSING.Dec 20, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR CA081223006Housing · cracked(CAN) STARTER HSG FOUND CRACKED.Dec 4, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR CA081210013Magneto · unserviceable(CAN) MAGNETO FOUND U/S.Nov 28, 2008 · Robsin R44RAVENII · Magneto/DistributorSDR CA081126008Case · cracked(CAN) STARTER CASING CRACKED.Nov 21, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR CA081105010Angle · cracked(CAN) FOUND CRACKED ANGLE DURING INSPECTION OF ELT MOUNT.Nov 5, 2008 · Robsin R44RAVENII · Fuselage Main, Attach FittingsSDR CA081107002Angle · sheared(CAN) THE ANGLE USED AS PART OF ELT INSTALLATION WAS FOUND SHEARED DURING 2200 HR OVERHAUL TEARDOWN.Nov 4, 2008 · Robsin R44RAVENII · Fuselage Main, Attach FittingsSDR CA081107004Magneto · intermittent(CAN) MAGNETO INTERMITTENT.Oct 26, 2008 · Robsin R44RAVENII · Magneto/DistributorSDR CA081107005Magneto · intermittent(CAN) MAGNETO INTERMITTENT.Oct 26, 2008 · Robsin R44RAVENII · Magneto/DistributorSDR CA081028005Starter Gen · disengaged(CAN) STARTER WOULD NOT ENGAGE THE RING GEAR.Oct 22, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR CA081020012Valve · stuck(CAN) DURING STRAIGHT AND LEVEL CRUISE FLIGHT, THE PILOT NOTICED A SUDDEN INCREASE IN VIBRATION, THOUGHT TO BE COMING FROM THE ENGINE, AND AN INCREASE IN MANIFOLD PRESSURE. HE OPTED TO TURN AROUND AND LAND AT A NEARBY CAMP. DURING HIS DESCENT, THE VIBRATION STOct 19, 2008 · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR CA081020011Tachometer · malfunctioned(CAN) DURING DESCENT FROM ALTITUDE TO BEGIN LOW LEVEL FLIGHT FOR PIPE LINE SURVEILLANCE AT APPROX. 75 KNOTS INDICATED AIRSPEED AND VSI AT APPROX. 500 FPM, THE ENGINE RPM TACH INDICATED ENGINE OVERSPEED WELL ABOVE 110%. ALL OTHER ENGINE PARAMETERS REGISTERED WIOct 16, 2008 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR CA081015003Wire · misrouted(CAN) TACH WIRE CHAFING ON TACH POINT CONNECTOR TACH WIRES INCORRECTLY ROUTED. TCM SB663A NOT COMPLIED WITH FOR WIRE ROUTING. LAST MX ON MAGNETO WAS PRO AERO. MAGNETO WAS REMOVED DUE TO ENGINE/ACFT OVERSPEED.Oct 15, 2008 · Robsin R44RAVENII · Ignition System WiringSDR CA081015004Wire · misrouted(CAN) TACH WIRES INCORRECTLY ROUTED COIL PRIMARY WIRE INCORRECTLY ROUTED. TCM SB663A NOT COMPLIED WITH FOR WIRE ROUTING. MAGNETO WAS REMOVED FOR ENGINE/ACFT OVERSPEED.Oct 15, 2008 · Robsin R44RAVENII · Ignition System WiringSDR CA081015005Wire · pinched(CAN) TACH WIRE WAS PINCHED BETWEEN HOUSING AND CAPACITOR TACH WIRES INCORRECTLY ROUTED TCM SB663A NOT COMPLIED WITH FOR WIRE ROUTING MAGNETO WAS REMOVED FOR FLUCTUATING ENGINE TACH NEEDLE .Oct 15, 2008 · Robsin R44RAVENII · Ignition System WiringSDR CA081024003Starter Gen · inoperative(CAN) STARTER GEN WOULD NOT ENGAGE ENGINE, REPLACED WITH SERVICEABLE STARTER GEN.Oct 15, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR CA081024004Servo · leaking(CAN) SERVO LEAKING FROM PILOT VALVEOct 11, 2008 · Robsin R44RAVENII · Rotorcraft Servo SystemSDR CA081024005Servo · leaking(CAN) SERVO LEAKING FROM PILOT VALVEOct 11, 2008 · Robsin R44RAVENII · Rotorcraft Servo SystemSDR 2008FA0000668Guide · undersizeMOMENTARY SEVERE VIBRATION, POWER LOSS AND ENGINE RPM DROP OCCURRED IN-FLIGHT THEN RETURNED TO NORMAL. COMPRESSION CHECK (COLD) REVEALED STUCK INTAKE VALVE ON NR 6 CYL. INTAKE VALVE GUIDE ID MEASURED .4035" (UNDERSIZED). LIMITS .4040 / .4050. NO BUILDUP FOOct 3, 2008 · N4126A · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR CA081009006Starter Gen · malfunctioned(CAN) STARTER NOT ENGAGING.Sep 30, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR CA080929006Clutch · inoperative(CAN) THE C188-3 SPRAG S/N S164 REV G HAS 2 PEANUTS WITH 5 BROKEN EARS. C166-4 SHAFT SPRAG JOURNAL WORN UNDERSIZE, C167-3 HOUSING SPRAG JOURNAL WORN OVERSIZE.Sep 29, 2008 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA081009005Magneto · malfunctioned(CAN) ENGINE TACH FLUCTUATING, MAGNETO REPLACED.Sep 29, 2008 · Robsin R44RAVENII · Magneto/DistributorSDR CA080926001Coil · worn(CAN) IT WAS FOUND WHEN THE MAG WAS ASSEMBLED NEW, THE HIGH TENSION TAB OF THE COIL WAS NOT MADE PARALLEL WITHIN THE HOUSING SPLIT LINE. THIS CAUSED THE BRUSH TO WEAR A DEEP GROOVE INTO THE TAB. THE BRUSH (10-160844) ALSO RECEIVED DAMAGE IN THE FORM OF A STESep 25, 2008 · Robsin R44RAVENII · Magneto/DistributorSDR CA080925012Sprag Clutch · cracked(CAN) CLUTCH WAS REMOVED FROM ACFT FOR VISUAL INSP DUE TO ISSUES WITH CLUTCH ASSY`S. TEARDOWN REVEALED THE FOLLOWING: CAGE CRACKED AT 1 CROSSBAR, SHAFT C166-4 WORN UNDERSIZE, HSG C167-3 WORN OVERSIZE AND OIL WAS VERY BLACK.Sep 24, 2008 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA080925014Sprag Clutch · chipped(CAN) PILOT HEARD POSSIBLE NOISE WITH SLIPPAGE OF DRIVE TRAIN. CLUTCH WAS REMOVED TO VERIFY NO INTERNAL DAMAGE. THE FOLLOWING WAS FOUND DURING A TEARDOWN: 1 PEANUT INNER EAR CHIPPED, SHAFT PN C166-4 WORN UNDERSIZE, HSG C167-3 WORN OVERSIZE AND OIL VERY BLACKSep 23, 2008 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA080919011Bearing · excess play(CAN) MAG WAS RECEIVED FOR 500 HR INSP. BEFORE MAG WAS DISASSEMBLED THE BEARINGS WERE CHECKED BY SPINNING THE ROTATING MAGNET. THE END PLAY WAS MEASURED AT 0.004", MFG LIMIT IS 0.0015" MAX. THE BEARINGS WERE RESHIMMED, THE REST OF THE 500 HR INSP WAS CARRIESep 18, 2008 · Robsin R44RAVENII · Magneto/DistributorSDR CA080919003Actuator · damaged(CAN) CLUTCH ACTUATOR FOUND U/S DURING INSPECTION, SERVICEABLE ACTUATOR INSTALLED.Sep 10, 2008 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA080919005Clutch · damaged(CAN) LOUD BANGING NOISE IN ACFT. CLUTCH REMOVED FOR TEARDOWN INSPECTION, SERVICEABLE CLUTCH INSTALLED.Sep 8, 2008 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA080905006Governor · failed(CAN) PILOT WAS LANDING THE ACFT AND THE RPM DROPPED DUE TO THE GOVERNOR NOT HOLDING THE REQUIRED RPM, GOVERNOR REPLACED.Sep 4, 2008 · Robsin R44RAVENII · Turbine GovernorSDR CA080902011Magneto · contaminated(CAN) MAG WAS RECEIVED FOR 500 HR INSP. END PLAY WAS NOTICED BEFORE DISASSEMBLY (0.003", 0.0015" IS MAX ALLOWABLE). WHEN MAG WAS DISASSEMBLED A COATING OF ENGINE OIL WAS FOUND ON ALL MAG COMPONENTS. THE COIL TAB WAS NOT LEVEL AND WAS PROTRUDING ABOVE MAG HSG PSep 2, 2008 · Robsin R44RAVENII · Magneto/DistributorSDR CA080904003Sprag Clutch · damaged(CAN) UNTIL THE OFFICIAL REPORT ARRIVES, THIS IS WHAT IS DETERMINED HAPPENED. DURING TAKEOFF THE PILOT EXPERIENCED A LOUD NOISE AND THEN ACFT YAWED SLIGHTLY. THE ACFT LANDED WITHOUT INCIDENT. THE CLUTCH WAS REPLACED AND ACFT RETURNED TO SERVICE. DETAILS WILSep 1, 2008 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA080919006Clutch Actuator · damaged(CAN) DRIVE BELTS SLIPPING, SERVICEABLE ACTUATOR INSTALLED.Aug 26, 2008 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA090824007Starter · inoperativeDURING ENG START, STARTER WOULD NOT ENGAGE THE FLYWHEEL. STARTER WAS REPLACED WITH SERVICEABLE UNIT. NEW STARTER FUNCTION TESTED, NO DEFECTS FOUND.Aug 24, 2008 · Robsin R44RAVENII · Engine StarterSDR CA080910006Pump · malfunctioned(CAN) FUEL PUMP ELECTRICALLY MALFUNCTIONING, REPLACED FUEL PUMP.Aug 20, 2008 · Robsin R44RAVENII · Engine Fuel PumpSDR CA080910002Starter Gen · inoperative(CAN) THE STARTER WAS NOT CRANKING OVER ENGINE, STARTER REPLACED.Aug 18, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR CA080903015Gear · worn(CAN) STARTER TEETH FOUND WORN, REPLACED WITH A SERVICEABLE STARTER.Aug 16, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR CA080915007Pump · faulty(CAN) THE AUX FUEL PUMP LIGHT WOULD NOT EXTINGUISH, AUX PUMP REPLACED.Aug 16, 2008 · Robsin R44RAVENII · Fuel Boost PumpSDR CA080903005Mount · cracked(CAN) STARTER MOUNT PAD CRACKED THROUGH BY FRONT MOUNTING HOLES.Aug 13, 2008 · Robsin R44RAVENII · Starter-GeneratorSDR JJWA2008080877744Wire · chafedDURING SEARCH FOR POSSIBLE REFRIGERANT LEAKS ON NEW ACFT, CHECKED WIRING TO FREEZE SWITCH BEHIND EVAPORATOR TO AFT CABIN WALL, AND FOUND THE WIRE WAS RUBBING ON THE FREEZE SWITCH CAPILLARY TUBE, WITH NO DAMAGE TO EITHER COMPONENT AT THIS TIME. INSTALLED SPIRAAug 8, 2008 · N277CH · Robsin R44RAVENII · Air Conditioning System WiringSDR CA080805008Magneto · inoperative(CAN) MAG WAS RECEIVED FOR 500 HOUR INSP. BEFORE DISASSEMBLY 0.003 INCH END PLAY WAS NOTICED ON THE ROTOR BEARINGS (0.0015 INCH IS MAX. ALLOWABLE). WHEN DISASSEMBLED THE WASHER THAT RETAINS THE DISTRIBUTOR GEAR ON THE SHAFT WAS SLIGHTLY LOOSE. MFG HAS BEEN CONAug 5, 2008 · Robsin R44RAVENII · Magneto/Distributor
Back to Lycoming IO-540-AE1A5