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 CA101122024Controller · erraticGOVERNOR CONTROLLER FOUND TO BE ERRATIC. ENGINE WOULD INCREASE TO OVERSPEED AND THEN DROP TO 90 PERCENT REPEATEDLY.Nov 14, 2010 · Robsin R44RAVENII · Fuel Control/Reciprocating EnginesSDR CA101122018Reservoir · leakingHYDRAULIC RESERVOIR FOUND LEAKING DURING DI. HYDRAULIC RESEVOIR REPLACED.Nov 12, 2010 · Robsin R44RAVENII · Hydraulic Reservoir, MainSDR CA101115025Alternator · failed(CAN) ALTERNATOR WARNING LIGHT CAME ON IN FLIGHT. AMP GAUGE SHOWED DISCHARGE. PILOT CYCLED ALTERNATOR CIRCUIT BREAKER. WARNING LIGHT WENT OUT BUT AMP METER STILL SHOWED DISCHARGE CONDITION. AIRCRAFT RETURNED TO BASE. ALTERNATOR REPLACED.Nov 10, 2010 · Robsin R44RAVENII · AC Generator-AlternatorSDR CA101119005Pump · failed(CAN) AUX FUEL PUMP POPS CIRCUIT BREAKER. AUX FUEL PUMP REPLACED.Nov 10, 2010 · Robsin R44RAVENII · Fuel Boost PumpSDR CA101115024Starter · inoperative(CAN) STARTER TURNS BUT DOES NOT EXTEND FAR ENOUGH TO ENGAGE RING GEAR. WORKS OCCASIONALLY BUT MOST OF THE TIME NOT.Nov 5, 2010 · Robsin R44RAVENII · Engine StarterSDR CA101116003Pump · shorted(CAN) AUX FUEL PUMP WARNING LIGHT FLICKERS DURING GROUND RUN. FUEL PUMP REPLACED.Nov 5, 2010 · Robsin R44RAVENII · Magneto/DistributorSDR CA101116004Starter · failed(CAN) ENGAGES BENDIX BUT WILL NOT SPIN AND DISENGAGE. STARTER REPLACED.Nov 5, 2010 · Robsin R44RAVENII · Engine StarterSDR CA101102012Pump · failed(CAN) AUX FUEL PUMP WARNING LIGHT CAME ON IN FLIGHT AND STAYED ON. EARLIER IN THE DAY THE AUX FUEL PUMP WAS HEARD MAKING UNHEALTHY NOISES. PUMP WOULD NOT PRIME ON THE GROUND WITH ENGINE OFF. AUX FUEL PUMP REPLACED WITH SAME PART NUMBER, AIRCRAFT RETURNED TONov 2, 2010 · Robsin R44RAVENII · Engine Fuel PumpSDR CA101109018Pump · failed(CAN) RUNNING ROUGH. TRIPPED CIRCUIT BREAKER. AUX FUEL CAUTION LIGHT CAME ON IN FLIGHT.Oct 25, 2010 · Robsin R44RAVENII · Engine Fuel PumpSDR CA101109019Altimeter · fluctuates(CAN) PILOT REPORTED ALTIMETER WAS FLUCTUATING +/- 40 FEET IN FLIGHT. ALTIMETER REPLACE AFTER 18.0 FLIGHT HOURS IN SERVICE FOLLOWING BI-ANNUAL RECERTIFICATION.Oct 23, 2010 · Robsin R44RAVENII · Altimeter, Barometric/EncoderSDR CA101020006Starter · failedSTARTER MADE LOUD GRINDING NOISE AND WOULD NOT ENGAGE ENGINE RING GEAR.Oct 16, 2010 · Robsin R44RAVENII · Engine StarterSDR CA101025008Pump · noisyELECTRIC FUEL PUMP, PN D8187-B, (RHC PN: D743-1) NOISY. REPLACED FUEL PUMP.Oct 14, 2010 · Robsin R44RAVENII · Fuel Boost PumpSDR CA101025009Switch · failedSWITCH FAILURE. CLUTCH ACTUATOR ASSEMBLY REPLACED.Oct 10, 2010 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA100928016Sprag Clutch · failed(CAN) ON TAKEOFF THE PILOT HEARD A LOUD BANG FOLLOWED BY A LEFT YAW OF THE AIRCRAFT. THE PILOT IMMEDIATELY PERFORMED A PRECAUTIONARY LANDING AND SHUT DOWN THE AIRCRAFT DOWN. ON SHUTDOWN A GRINDING NOISE WAS HEARD FROM THE SPRAG CLUTCH AREA. AN ENGINEER WAS DSep 27, 2010 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA100913012Muffler · meltedEXHAUST MUFFLER C169-32(C169-31 SUB ASSEMBLY) SENT IN FROM CUSTOMER AT 540.0 TTSN. MUFFLER HAS MASSIVE FAILURE AT THE TAILPIPE ATTACHMENT JOINT. OPERATOR IS AWARE THAT THESE FAIL. THERE IS NO AD ON THESE AND THERE REALLY SHOULD BE. AD CF-90-03R2 DOES NOT COMSep 13, 2010 · Robsin R44RAVENII · Engine Noise SuppressorSDR CA100819008Wire · failed(CAN) THE CLUTCH ACTUATOR FAILED TO ENGAGE, FOUND BROKEN WIRES ON SWITCHES. CLUTCH ACTUATOR REPLACED.Aug 18, 2010 · Robsin R44RAVENII · Main Rotor Drive System WiringSDR CA100824002Starter · unserviceableTHE STARTER WAS FOUND ELECTRICALLY UNSERVICEABLE. REPLACED WITH SERVICABLE STARTER.Aug 18, 2010 · Robsin R44RAVENII · Starter-GeneratorSDR CA100819007Starter · failedTHE STARTER FAILED TO CRANK THE ENGINE. STARTER REPLACED.Aug 16, 2010 · Robsin R44RAVENII · Engine StarterSDR CA100816005Pump · leaking(CAN) FUEL PUMP WAS FOUND TO BE LEAKING OIL. FUEL PUMP REPLACED (TC# 20100816005)Aug 14, 2010 · Robsin R44RAVENII · Magneto/DistributorSDR CA100804016Magneto · failedRT MAGNETO FOUND ELECTRICALLY UNSERVICEABLE, REPLACED MAGNETO.Aug 2, 2010 · Robsin R44RAVENII · Magneto/DistributorSDR CA100805015Clutch · failedTHE PILOT REPORTED A LOUD BANG AND A MOMENTARY YAW WHILE IN CRUISE FLIGHT. THE CLUTCH ASSY WAS REPLACED.Jul 30, 2010 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA100805014Clutch · failedTHE PILOT REPORTED A LOUD BANG AND A MOMENTARY YAW WHILE IN CRUISE FLIGHT. THIS HAPPENED MORE THAN ONCE IN THE LAST 250 HRS. THE CLUTCH ASSY (FREEWHEEL) IS SUSPECTED TO HAVE SLIPPED IN FLIGHT. THE CLUTCH ASSY WAS REPLACED WITH NO RECURRENCE SINCE. WHILE FREEJul 29, 2010 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA100730008Starter · failedSTARTER ELECTRICALLY UNSERVICEABLE. WHEN TURNING ON ACFT POWER THE STARTER WOULD ENGAGE.Jul 24, 2010 · Robsin R44RAVENII · Starter-GeneratorSDR CA100722010Fcu · ratchetingFUEL CONTROL UNIT WAS FOUND TO HAVE RATCHETY THROTTLE AND MIXTURE CONTROLS, REPLACED.Jul 21, 2010 · Robsin R44RAVENII · Fuel Control/Reciprocating EnginesSDR CA100721010Line · chafed(CAN) FOUND COOLING BAFFLE RETAINING SPRING, HAD ROTATED AND CONTACTED THE CYLINDER HEAD OIL RETURN LINE ON CYLINDER NR 6. THIS CAUSED THE RETAINING SPRING TO CHAFE INTO THE OIL RETURN LINE. (TC NR 20100721010)Jul 20, 2010 · Robsin R44RAVENII · Reciprocating Engine Oil SystemSDR CA100722009Starter · unserviceableSTARTER WAS UNSERVICEABLE, REPLACED WITH A SERVICABLE STARTER.Jul 19, 2010 · Robsin R44RAVENII · Engine StarterSDR CA100722007Bearing · leakingTHE SWASHPLATE BEARING WAS LEAKING BLACK FLUID AND THE BEARING WAS FOUND LOOSE.Jul 15, 2010 · Robsin R44RAVENII · Main Rotor Mast/SwashplateSDR CA100713007Warning System · failedLOW ROTOR RPM WARNING UNIT REPLACED DUE TO NO WARNING DURING FUNCTIONAL CHECK.Jul 11, 2010 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR CA100716002Reservoir · leakingDURING INSPECTION, THE HYD RESERVOIR FOUND LEAKING, RESERVOIR REPLACED.Jul 9, 2010 · Robsin R44RAVENII · Hydraulic Reservoir, MainSDR CA100716003Starter · failedACFT WAS EXPERIENCING POOR STARTS, STARTER REPLACED.Jul 9, 2010 · Robsin R44RAVENII · Engine StarterSDR CA100713006Starter · failedACFT WOULD NOT START, STARTER REPLACED, PROBLEM RECTIFIED.Jul 7, 2010 · Robsin R44RAVENII · Engine StarterSDR CA100713008Pump · leakingOIL FOUND LEAKING FROM BREATHER TUBE, FUEL PUMP REPLACED, SERVICABLE.Jul 7, 2010 · Robsin R44RAVENII · Magneto/DistributorSDR CA100713012Pump · leakingFUEL PUMP FOUND LEAKING THROUGH DRAIN WHILE STATIC, REPLACED SERVICABLE.Jul 6, 2010 · Robsin R44RAVENII · Fuel Boost PumpSDR CA100713010Starter · intermittentSTARTER WAS INTERMITTENT, REPLACED SERVICABLE.Jul 4, 2010 · Robsin R44RAVENII · Engine StarterSDR CA100707008Starter Gen · failedTHE AIRCRAFT WOULD NOT START, STARTER REPLACED.Jun 30, 2010 · Robsin R44RAVENII · Starter-GeneratorSDR CA100707009Pump · intermittentFUEL PUMP WAS INTERMITTENT, FUEL PUMP REPLACED.Jun 28, 2010 · Robsin R44RAVENII · Engine Fuel PumpSDR CA100806015Pump · shortedTHE ACFT CAME IN FOR A 50 HR INSP. THE BOOST PUMP WAS BLOWING THE CIRCUIT BREAKER. THE BOOST PUMP WAS REPLACED WITH A NEW ONE AND THE SYS TESTED SATISFACTORILY.Jun 24, 2010 · Robsin R44RAVENII · Fuel Boost PumpSDR CA100625001Ground Wire · faultyPILOT FOUND NO DROP IN RPM DURING LT MAGNETO CHECK. THE GROUND WIRES WERE FOUND DEFECTIVE DURING TROUBLESHOOTING. MAGNETO REPLACED.Jun 20, 2010 · Robsin R44RAVENII · Ignition System WiringSDR CA100616006Magneto · faultyACFT EXPERIENCED HIGH ENGINE RPM READING, TROUBLESHOOTING REVEALED FAULTY RT MAGNETO.Jun 14, 2010 · Robsin R44RAVENII · Magneto/DistributorSDR CA100820004Bolt · loose(CAN) DURING A SCHEDULED INSPECTION, THIS BOLT (IPC PAGE 2-4 ,FIGURE 2-5, ITEM NR 15) WAS FOUND LOOSE. THIS IS THE THIRD AIRCRAFT IN THE FLEET ON WHICH THIS BOLT WAS FOUND LOOSE, ALL AIRCRAFT WERE UNDER 1000HRS TSN. IT IS VERY NOTICEABLE WHEN WIGGLING THE TAIJun 12, 2010 · Robsin R44RAVENII · Rotorcraft Tail BoomSDR CA100608020Gascolator · leakingTHE GOSCOLATOR TOP LEAKS AT THE INLET AND OUTLET FITTINGS, REPLACED, SERVICABLE.Jun 7, 2010 · Robsin R44RAVENII · Aircraft Fuel Filter/StrainerSDR CA101027007Sprag Assy · crackedDURING T/O, BANG HEARD BY PILOT, ABORTED T/O. CONFIRMED SUSPECTED SPRAG FAILURE DIAGNOSIS WITH HELICOPTERS AND PILOTS REPORTED SYMPTOMS. CLUTCH ASSY REPLACED IN FIELD. DIAGNOSIS FURTHER CONFIRMED BY DIASSASEMBLY OF RETURNED SPRAG UNIT BY MFG.Jun 4, 2010 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA100531004Hose · kinkedUPON INSP A KINKED FUEL HOSE WAS FOUND COMING FROM THE FUEL PRESSURE RELIEF VALVE TO THE AUX FUEL TANK. HOSE IS OF POOR QUALITY MFG AND WAS POSSIBLE KINKED WHEN DOING A DI UP TOP BY STEPPING ON IT OR CLEANING UNDER GEARBOX.May 29, 2010 · Robsin R44RAVENII · Aircraft Fuel Distribution SystemSDR CA100528002Pump · leaking(CAN) FUEL PUMP FOUND LEAKING OIL, FUEL PUMP REPLACED.May 22, 2010 · Robsin R44RAVENII · Engine Fuel PumpSDR CA100525012Controller · malfunctionedENGINE RPM WAS READING HIGH 104 PERCENT, GOVERNOR CONTROLLER REPLACED SERVICABLE.May 17, 2010 · Robsin R44RAVENII · Turbine GovernorSDR CA100525010Switch · failedTHE SWITCH CAUSED THE STARTER TO CUT OUT OPERATION, CLUTCH ACTUATOR REPLACED.May 12, 2010 · Robsin R44RAVENII · Starter-GeneratorSDR CA100525011Pump · failedAUX FUEL PUMP ELECTRICALLY FAILED. SERVICABLE PUMP INSTALLED.May 12, 2010 · Robsin R44RAVENII · Fuel Boost PumpSDR CA100510004Starter Gen · failedTHE STARTER BENDIX DRIVE WOULD STICK OUT AND GET STUCK ON RT WING GEAR AND WOULD NOT RETRACT. THE STARTER WOULD NOT TURN ENGINE OVER.May 2, 2010 · Robsin R44RAVENII · Starter-GeneratorSDR CA100504011Servo · leakingSERVO FOUND LEAKING DURING INSP, REPLACED SERVICEABLE.Apr 25, 2010 · Robsin R44RAVENII · Rotorcraft Servo SystemSDR CA100428006Elt · failed(CAN) TSN INSTALLED 30 SEPT 2008. THE ELT WAS REMOVED FROM R44II FOR ANNUAL RECERT AND FAILED THE SELF TEST. NO MODULATION.Apr 22, 2010 · Robsin R44RAVENII · Emergency Locator Beacon
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