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 CA190423010Link · separated(CAN) DURING RUN UP IT WAS NOTED THAT THE IDLE WAS HIGH (AROUND 70% BELTS ENGAGED)..UPON INSPECTION IT WAS FOUND THAT THE BEARING HAD COME OUT OF THE B564-2 LINK AT THE SERVO END. (TC# 20190423010)Apr 23, 2019 · Robsin R44RAVENII · Power LeverSDR YV3R2019042200066Tachometer · inoperativeCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4R ROTOR NEEDLE INDICATION SIDE FAILED.Apr 22, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019042200067Controller · intermittentCUSTOMER REPORTED GOVERNOR CONTROLLER P/N: D278-2 WAS INTERMITTENT.Apr 22, 2019 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR CA190422020Alternator · inoperative(CAN) DURING THE PREVIOUS FLIGHT THE ALTERNATOR LIGHT ILLUMINATED 3 TIMES AND WAS SUCCESSFULLY RESET EACH TIME. UPON THE 4TH OCCURRENCE THE HELICOPTER RETURN TO THE HANGAR. THE ALTERNATOR CONTROL UNIT AND THE ALTERNATOR SWITCH WERE REPLACED. A SUCCESSFUL GROUNApr 22, 2019 · Robsin R44RAVENII · DC Generator-AlternatorSDR CA190422019Alternator · inoperative(CAN) PRIOR TO DEPARTURE/LIFT OFF THE ALTERNATOR LIGHT CAME. THE FLIGHT WAS CANCELLED. THE ALTERNATOR WAS REPLACED WITH A NEW UNIT. THE SYSTEM WAS GROUND TESTED AND FOUND TO OPERATE CORRECTLY. (TC# 20190422019)Apr 18, 2019 · Robsin R44RAVENII · DC Generator-AlternatorSDR CA190422017Pump · inoperative(CAN) AUXILIARY ELECTRIC FUEL PUMP LIGHT CAME ON DURING FLIGHT (LIGHT INDICATES LOW FUEL PUMP OUTPUT PRESSURE). PUMP FOUND TO BE UNSERVICEABLE. PUMP REPLACED WITH NEW UNIT, OPERATIONAL TEST CARRIED OUT, PUMP OPERATION FOUND TO BE CORRECT. (TC# 20190422017)Apr 17, 2019 · Robsin R44RAVENII · Fuel Boost PumpSDR CA190422015Magneto · malfunctioned(CAN) FOLLOWING ENGINE START AND DURING POST-START CHECKS ENGINE RPM WAS FOUND TO BE FLUCTUATING. MAGNETO REPLACED WITH OVERHAULED UNIT. (TC# 20190422015)Apr 8, 2019 · Robsin R44RAVENII · Magneto/DistributorSDR YV3R2019041100065Tachometer · intermittentCUSTOMER REPORTED NEEDLE SHOWING ENGINE SPEED IS HANGING UP UNTIL GLASS IS TAPPED.Apr 3, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019040100061Tachometer · failedCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 FAILED.Apr 1, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019004050062Controller · malfunctionedCUSTOMER REPORTED OVER SPEED WITH GOVERNOR CONTROLLER ASSEMBLY P/N: D278-2.Mar 29, 2019 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR YV3R2019032700059Pressure Gauge · defectiveCUSTOMER REPORTED MANIFOLD ABSOLUTE PRESSURE GAGE UNDERESTIMATES AT 1.5" (INCH).Mar 25, 2019 · Robsin R44 · Manifold Pressure (MP) IndicatingSDR CA190320017Terminal · broken(CAN) ELECTRICAL RING TERMINAL FOR ALTERNATOR JUMPER WIRE BROKE AT RING-TO-CRIMP SLEEVE AREA. ALTERNATOR CEASED TO OPERATE. CRIMP TERMINAL REPLACED. SYSTEM OPERATION TESTED AND FOUND TO BE NORMAL.Mar 19, 2019 · Robsin R44RAVENII · Electrical Power System WiringSDR YV3R2019012200057Gyro · precessesCUSTOMER REPORTED ATTITUDE HORIZON P/N: B823-4R HAS PRECESSION.Mar 16, 2019 · N123MV · Robsin R44RAVENII · Attitude Gyro and Indicating SystemSDR YV3R2019032300055Drive Belt · defectiveCUSTOMER REPORTED V-BELT SET HAD IRREGULAR WEAR.Mar 15, 2019 · Robsin R44RAVENII · Main Rotor Drive SystemSDR YV3R2019032300056Governor · inoperativeCUSTOMER REPORTED GOVERNOR ASSEMBLY P/N: B247-5 IS INOPERATIVE.Mar 15, 2019 · N441KA · Robsin R44RAVENII · Engine RPM Indicating SystemSDR YV3R2019031800051Tachometer · inoperativeCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 WAS INOPERATIVE.Mar 14, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019012200053Indicator · inaccurateCUSTOMER REPORTED AIRSPEED P/N: C599-1 WAS OVER READING.Mar 14, 2019 · Robsin R44RAVENII · Airspeed/Mach IndicatorSDR YV3R2019031800048Altimeter · inaccurateCUSTOMER REPORTED ALTIMETER P/N: A613.2 WAS OVER READING.Mar 13, 2019 · Robsin R44RAVENII · Altimeter, Barometric/EncoderSDR YV3R2019031800050Tachometer · erraticCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 HAS ERRATIC READINGS.Mar 13, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019032300054Warning Horn · defectiveCUSTOMER REPORTED LOW RPM WARNING HORN P/N: B320-6 WILL NOT WORK UNTIL TAPPED WHEN TESTING.Mar 12, 2019 · Robsin R44RAVENII · Rotor Drive Indicating SystemSDR CA190318029Battery · failed(CAN) PILOT RETURNED TO BASE AND REPORTED HAVING TO RE-SET THE ALTERNATOR AFTER THE LIGHT HAD ILLUMINATED SEVERAL TIMES IN FLIGHT. THE AIRCRAFT WAS DUE FOR A 100HR ANYWAY SO THE INSPECTION WAS CARRIED OUT. DURING THE INSPECTION IT WAS FOUND THAT THE BATTERY UNMar 12, 2019 · Robsin R44RAVENII · Battery/Charger SystemSDR YV3R2019030500040Sending Unit · leakingCUSTOMER REPORTED FUEL SENDER CENTER STUD LEAKING.Mar 4, 2019 · N423LC · Robsin R44RAVENII · Fuel Indicating SystemSDR YV3R2019030100035Gyro · inoperativeCUSTOMER REPORTED DIRECTIONAL GYRO P/N: B823-5 TOPPLES (INOPERATIVE).Feb 28, 2019 · Robsin R44RAVENII · Directional Gyro and Indicating SystemSDR YV3R2019030100036Audio Control · malfunctionedCUSTOMER REPORTED AUDIO CONTROL PANEL LIGHT REMAINED OFF AFTER ENGINE START, BOTH INTERCOM AND RADIO TELECOMMUNICATIONS DIDN'T WORK WELL.Feb 27, 2019 · Robsin R44RAVENII · Audio Integrating SystemSDR YV3R2019030600041Tachometer · reads lowCUSTOMER REPORTED ROTOR TACHOMETER NEEDLE NOT INDICATING, ENGINE TACHOMETER NEEDLE READS 2% LOW.Feb 27, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019030600042Tachometer · inoperativeCUSTOMER REPORTED DUAL TACHOMETER ROTOR NEEDLE BLOCKED AT 70%.Feb 27, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019030100037Support · crackedCUSTOMER REPORTED GROUND HANDLING WHEEL SUPPORT CRACKED.Feb 26, 2019 · Robsin R44RAVENII · Auxiliary Gear (Tail Skid)SDR YV3R2019022800034Pump · inoperativeCUSTOMER REPORTED P/N: D743-1 (P/N: 19001-B) LOCKED UP.Feb 23, 2019 · Robsin R44RAVENII · Fuel Boost PumpSDR 2019FA0000047Relay · burned outPART NUMBER A999-4 REVF MASTER RADIO RELAY ASSEMBLY FAILED CAUSING UNCOMMANDED STARTER ENGAGEMENT WHILE THE ENGINE WAS RUNNING AND HELICOPTER WAS IDLING ON THE GROUND. PILOT WAS UNABLE TO DISENGAGE THE STARTER. ENGINE POWER WAS AFFECTED AND ENGINE BEGAN TO LOSFeb 21, 2019 · N716JL · Robsin R44RAVENII · Starter-GeneratorSDR YV3R2019022800032Actuator · malfunctionedCUSTOMER REPORTED RIGHT HAND COLUMN IS NOT POPPING.Feb 21, 2019 · Robsin R44RAVENII · Main Rotor Drive SystemSDR YV3R2019012200028Governor · malfunctionedCUSTOMER REPORTED GOVERNOR MOTOR WAS MALFUNCTIONING.Feb 19, 2019 · N445AP · Robsin R44RAVENII · Engine RPM Indicating SystemSDR YV3R2019012200029Converter · failedCUSTOMER REPORTED CONVERTER (DC TO DC) P/N: LT-46D FAILED.Feb 19, 2019 · Robsin R44RAVENII · DC Rectifier/ConverterSDR YV3R2019012200025Tachometer · bindingCUSTOMER REPORTED NEEDLES WERE HANGING-UP BELOW 70%.Feb 15, 2019 · N950HT · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019012200026Tachometer · defectiveCUSTOMER REPORTED ENGINE NEEDLE PEGS FULL SCALE WHEN POWER IS APPLIED.Feb 15, 2019 · N79RH · Robsin R44 · Main Rotor Indicating SystemSDR YV3R2019012200030Starter · inoperativeCUSTOMER REPORTED STARTER P/N: 149-24HT/H WAS INOPERATIVE.Feb 15, 2019 · N590HS · Robsin R44RAVENII · Engine StarterSDR YV3R2019022800031Starter · failedCUSTOMER REPORTED STARTER FAILED TO OPERATE.Feb 15, 2019 · Robsin R44RAVENII · Engine StarterSDR YV3R2019021200018Controller · malfunctionedCUSTOMER REPORTED UNIT DOESN'T WORK PROPERLY.Feb 5, 2019 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR YV3R2019012200010Controller · inoperativeCUSTOMER REPORTED CONTROLLER ASSEMBLY WAS INOPERATIVE. UNABLE TO TEST UNIT, NO OUTPUT.Jan 31, 2019 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR YV3R2019021100011Control Unit · malfunctionedCUSTOMER REPORTED HE WAS UNABLE TO ADJUST SYSTEM VOLTAGE WITH THE ALTERNATOR CONTROL UNIT.Jan 31, 2019 · N4043P · Robsin R44RAVENII · DC RegulatorSDR YV3R2019012200016Cover · malfunctionedCUSTOMER REPORTED, WHEN GOVERNOR SPEED IS ABOVE 80% IN RUN UP PROCESS, GOVERNOR LIGHT IS OFF, AND INOPERATIVE.Jan 30, 2019 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR YV3R2019012200008Controller · failedCUSTOMER REPORTED, WHEN SPEED IS ABOVE 80%, THE GOVERNOR LIGHT IS OFF AND BECOMES INOPERATIVE.Jan 18, 2019 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR YV3R2019012200004Controller · malfunctionedCONTROLLER WAS UNABLE TO CONTROL THE GOVERNOR MOTOR.Jan 11, 2019 · N15HP · Robsin R44RAVENII · Turbine GovernorSDR YV3R2019012200006Controller · failedGOVERNOR CONTROLLER IS INOPERATIVE.Jan 10, 2019 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR 2018FA0000529Bearing · corrodedOUT OF BOX FAILURE OF UPPER BEARING IN MAIN ROTOR GEARBOX TOTAL TIME 67 HOURS AND CALENDAR TIME OF 18 MONTHS SINCE MANUFACTURE. APPEARS TO BE CONTAMINATION OF GREASE IN THE BEARING BY PRIMER OR PAINT CAUSING CORROSION AND LUBRICATING GREASE FAILURE WITH POSSIBDec 13, 2018 · Robsin R44RAVENII · Main Rotor GearboxSDR 20181023Rocker Shaft · looseSUPPLEMENTAL INFORMATION (PLEASE REPLACE THE TEXT WITH THE FOLLOWING CORRECTED TEXT IN THIS FIELD): SERVICE BULLETIN 388C WAS PERFORMED IN CONJUNCTION WITH THE ANNUAL INSPECTION AND SERVICING OF THE AIRCRAFT. POST INSPECTION RUN-UP AND RETURN TO SERVICE FLIGOct 18, 2018 · N544JH · Robsin R44 · Engine (Reciprocating)SDR 2017FA0000482Exhaust Pipe · bulgedDURING A 100 HOUR INSPECTION, FOUND THE EXHAUST BULGED AND CRACKED AT TAIL PIPE TO MUFFLER JOINT. COULD HAVE LEAD TO CARBON MONOXIDE IN CABIN. MANUFACTURE STATED THEY WILL DO THAT. SUGGESTION FIX PROBLEM OR GENERATE AD ON EXHAUST SYSTEM.Sep 8, 2017 · N4132 · Robsin R44RAVENII · Engine Collector/Tailpipe/NozzleSDR 2017FA0000483Muffler · crackedDURING INSPECTION, FOUND THE MUFFLER ASSEMBLY CRACKED AND BULGING AT THE MATING FLANGES TO THE COLLECTORS AND THE WELDED AREA FOR THE TAIL PIPE. THIS IS THE THIRD EXHAUST FROM THAT HAS FAILED IN THE SAME MANNER, JUST ON THIS SHIP ALONE. THIS COULD LEAD TO CARSep 8, 2017 · N442BD · Robsin R44RAVENII · Engine Noise SuppressorSDR 2AFA20170719001Clutch Actuator · crackedFAILURE OF ACTUATOR ASSEMBLY. THE BRACKETS DISCONNECTING THAT CAUSED THE UPPER BREAK.” MR. WEBSTER ALSO STATED THIS WAS A “MAINTENANCE ISSUE THAT SHOULD HAVE BEEN ADDRESSED. WE HAVE A SERVICE BULLETIN OUT JUST FOR THAT.” HOWEVER, UNDER THE CURRENT SERVICEJul 19, 2017 · N188DD · Robsin R44RAVENII · Engine/Transmission CouplingSDR EVGR2017101600001Points · faultyON INSTALLATION OF THE OVERHAULED MAGNETO IN THE AIRCRAFT, THE TACHOMETER DID NOT WORK. FURTHER INVESTIGATION REVEALED THAT THE TACHOMETER POINTS HAD ZERO CONTINUITY BETWEEN THE TERMINALS AND THE POINTS. REPLACED THE TACHOMETER POINTS AND THE TACHOMETER WORKJun 26, 2017 · N788G · Robsin R44RAVENII · Magneto/DistributorSDR 2016FA0000589Bracket · separatedFOUND BRACKET A185-1 SEPARATED FROM LOWER SCROLL P/N C236-2 AND 1 OF THE UPPER BRACKET PART NUMBER A185-2 SEPARATED FROM UPPER SCROLL C236-1. THERE WAS ONLY ONE UPPER BRACKET HOLDING ON THE LOWER BEARING.Dec 2, 2016 · N501GT · Robsin R44RAVENII · Fuselage Miscellaneous Structure
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