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 CA110714006Blades · damagedAD 2011-12-10 CARRIED OUT. FOUND PIN HOLES IN BLADE BOND LINE. BOTH BLADES SCRAP.Jul 14, 2011 · Robsin R44RAVENII · Main Rotor BladesSDR CA110714007Muffler · crackedMUFFLER FOUND CRACKED AT INSPECTION.Jul 14, 2011 · Robsin R44RAVENII · Engine Noise SuppressorSDR CA110725013Retainer · scoredDURING 100 HR INSP, IT WAS FOUND THAT LOCKWIRE TAIL ON NAS1352-08H8P SCREW MADE CONTACT WITH INNER SURFACE OF RETAINER PN: C206-1 CAUSING SCORING. SWASHPLATE ASSY REPLACED.Jul 1, 2011 · Robsin R44RAVENII · Main Rotor Mast/SwashplateSDR CA110706008Alternator · failedALTERNATOR WARNING LIGHT COMING ON AND DROPPING OFF LINE INTERMITTENTLY. REPLACED ALTERNATOR.Jun 28, 2011 · Robsin R44RAVENII · AC Generator-AlternatorSDR CA110707002Magneto · malfunctionedDUAL TACH INDICATED ENGINE RPM OF 103 PERCENT WITH ROTOR RPM OF 100 PERCENT. RT MAGNETO REPLACED.Jun 28, 2011 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR CA110628005Starter · failedENGINE WOULD NOT START. STARTER REPLACED.Jun 23, 2011 · Robsin R44RAVENII · Engine StarterSDR CA110628003Pump · leakingDURING GROUND RUN FOLLOWING 50 HR INSPECTION, OIL WAS NOTED LEAKING FROM ENGINE DRIVEN FUEL PUMP DRAIN. FUEL PUMP REPLACED.Jun 20, 2011 · Robsin R44RAVENII · Fuel Boost PumpSDR CA110621011Drive Assy · failedSTARTER BENDIX DRIVE WAS FOUND TO BE DISENGAGING PREMATURELY. STARTER REPLACED.Jun 17, 2011 · Robsin R44RAVENII · Engine StarterSDR CA110616009Alternator · failedALTERNATOR WARNING LIGHT CAME ON IN FLIGHT. ALTERNATOR REPLACED.Jun 6, 2011 · Robsin R44RAVENII · DC Generator-AlternatorSDR CA110616008Magneto · malfunctionedENGINE AND GOVERNOR UNSTABLE. MAGNETO REPLACED.May 29, 2011 · Robsin R44RAVENII · Magneto/DistributorSDR CA110527004Sprag Clutch · crackedNOISE HEARD ON SHUTDOWN. CLUTCH DISASSEMBLED AND INSPECTED. FOUND THE SPRAG CLUTCH CAGE CRACKED IN SEVERAL PLACES, ALSO INDIVIDUAL SPRAGS CRACKED.May 27, 2011 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA110613005Line · crackedPILOT NOTED LOW OIL PRESSURE AND INCREASED OIL TEMP IN FLIGHT. PILOT LANDED AND ACFT WAS INSPECTED. ENGINEER FOUND A LARGE OIL LEAK IN THE AREA OF THE OIL COOLER. INSPECTION FOUND AN OIL LINE SHEARED AT A SWAGE LOK FITTING THAT WAS INSTALLED AS PART OF STC May 22, 2011 · Robsin R44RAVENII · Turbine Engine Oil SystemSDR CA110530003Fuel Control · malfunctionedEXCESSIVE FUEL CONSUPTION. FCU REPLACED.May 14, 2011 · Robsin R44RAVENII · Fuel Controlling SystemSDR CA110530006Clutch Actuator · failed100 HR INSPECTION FOUND CLUTCH ACTUATOR DOWN LIMIT STOP FAILED. CLUTCH ACTUATOR REPLACED.May 8, 2011 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA110518009Muffler · crackedFOUND CRACKED UNDER HEATER MUFF SHROUD.May 6, 2011 · Robsin R44RAVENII · Engine Noise SuppressorSDR CA110506008Exhaust Valve · seized(CAN) DURING MORNING WARM-UP AND PRE FLIGHT CHECKS, PILOT FELTS STRONG VIBRATIONS. WHILE REDUCING TROTTLE CONTROL, ENGINE EXPERIENCED POWER LOSS. MAINTENANCE INSPECTION WAS PERFORMED. THE RESULT WAS THE FOLLOWING: THE ENGINE HAS SUFFERED A NR 4 EXHAUST VALVE May 5, 2011 · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR CA110530005Reservoir · leakingHYD RESEVOIR LEAKING. HYD RESEVOIR REPLACED.May 2, 2011 · Robsin R44RAVENII · Hydraulic Reservoir, MainSDR CA110429005Retainer · brokenENGINE COOLING BAFFLE LOWER LT RETAINING SPRING FOUND BROKEN DURING INSPECTION. COOLING BAFFLE WAS CONTACTING NR 5 CYLINDER ROCKER BOX OIL RETURN LINE RESULTING IN SUBSTANTIAL CHAFING TO OIL LINE. RETAINER, SPRING AND OIL LINE REPLACED.Apr 27, 2011 · Robsin R44RAVENII · Engine Cooling SystemSDR CA110511005Reservoir · leakingHYD FLUID LEAKING FROM RESEVOIR. HYD RESEVOIR REPLACED.Apr 23, 2011 · Robsin R44RAVENII · Hydraulic Reservoir, MainSDR CA110420010Reservoir · leakingHYD RESERVOIR LEAKING FROM VENT CAP HOLES. RESERVOIR REPLACED.Apr 18, 2011 · Robsin R44RAVENII · Hydraulic Reservoir, MainSDR CA110415008Starter · failedACFT WOULD NOT START. STARTER REPLACED.Apr 12, 2011 · Robsin R44RAVENII · Engine StarterSDR CA110406013Clutch · failed(CAN) WHILE PREFORMING ACFT MFG SB-79, METAL PARTICLES AND CHUNKS WERE FOUND IN THE FLUID FROM THE SPRAG CLUTCH. PART WILL BE RETURNED TO ACFT MFG FOR EVALUATION/REPAIR.Apr 6, 2011 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA110414007Pump · leakingHYD PUMP FOUND LEAKING. REPLACED HYDRAULIC PUMP.Apr 2, 2011 · Robsin R44RAVENII · Hydraulic Handpump, MainSDR CA110414006Magneto · failedLEFT MAGNETO FAILED MAG CHECK. MAGNETO REPLACED.Apr 1, 2011 · Robsin R44RAVENII · Magneto/DistributorSDR CA110401010Seal · failed(CAN) DURING REFUELING AFTER FLIGHT THE PILOT NOTICED A LARGE AMOUNT OF OIL SPRAYED ALL OVER THE REAR PART OF THE ACFT. A MORE DETAILED INSPECTION WAS CARRIED OUT AND AND ENGINE OIL WAS FOUND DRIPPING OUT THE ENGINE CRANKSHAFT SEAL. THE ACFT WAS O/H ONLY 144.Mar 31, 2011 · Robsin R44RAVENII · Reciprocating Engine Oil SystemSDR CA120111004Bearing · loose(CAN) MAGNETO WAS REMOVED APPROXIMATELY 320 HOURS AFTER 500 HR INSPECTION BECAUSE OF MISSING TEETH ON THE NYLON DISTRIBUTOR GEAR. WHEN RECEIVED, THE MAG WAS DISASSEMBLED AND THE BUSHING INSIDE THE DISTRIBUTOR BLOCK WAS NO LONGER ATTACHED TO THE DISTRIBUTOR BLMar 19, 2011 · Robsin R44RAVENII · Magneto/DistributorSDR CA110331022Pump · failed(CAN) AUXILIARY FUEL PUMP FAILED. AUXILIARY FUEL PUMP REPLACED.Mar 12, 2011 · Robsin R44RAVENII · Fuel Boost PumpSDR CA110414005Servo · leakingHYD SERVO LEAKING. REPLACED SERVO.Mar 11, 2011 · Robsin R44RAVENII · Hydraulic System, MainSDR CA110331020Servo · binding(CAN) MIXTURE CABLE BINDING. FUEL SERVO MIXTURE ARM FOUND STIFF, FUEL SERVO REPLACED.Mar 11, 2011 · Robsin R44RAVENII · Mixture ControlSDR CA110310011Seal · failed(CAN) WHILE PREFORMING SB-79 AND INSTALLING THE NEW RETAINERS, PN C168-5 ON THE CLUTCH HOUSING. HAD THREE SEALS THAT WERE UNDERSIZED BY 0.010"-0.015" CAUSING THEM NOT TO SEAL AGAINST THE RETAINER. THE PROPER SIZED SEALS ARE AN INTERFERENCE FIT NEEDING TO BE Mar 10, 2011 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA110317003Engine · failed(CAN) PILOT REPORTED LOUD BANG & SUBSEQUENT ENG FAILURE. AUTO-ROTATED TO OPEN FIELD WITH NO DAMAGE TO THE AIRFRAME DURING THE LANDING. ACFT WAS REMOVED FROM THE FIELD & TRANSPORTED FOR FURTHER INVESTIGATION. ACFT PANELS WE REMOVED & A LARGE HOLE IN THE CRANMar 9, 2011 · Robsin R44RAVENII · Engine (Reciprocating)SDR CA110331023Blade · debonded(CAN) DURING A 100 HR INSPECTION, PERFORMED A TAP TEST INSPECTION OF MAIN ROTOR BLADE IAW RHC SERVICE LETTER SL-31. A DE-BONDED AREA APPROX 3.5 INCHES BY 1.5 INCHES WAS NOTED AT STATION 121. MAIN ROTOR BLADE REPLACED.Mar 9, 2011 · Robsin R44RAVENII · Main Rotor BladesSDR CA110307008Pump · noisy(CAN) PILOT REPORTED AUX FUEL PUMP AS VERY NOISY. AUX FUEL PUMP REPLACED.Mar 3, 2011 · Robsin R44RAVENII · Fuel Boost PumpSDR CA110304007Blade · delaminated(CAN) TAP TEST OF MAIN ROTOR BLADE PERFORMED AT 100 HR INSPECTION REVEALED AREA OF DELAMINATION ON UPPER SKIN. DELAMINATION CENTER OF MASS IS 77.5" FROM BLADE TIP AND 4.5" FROM T/E. DELAMINATION AREA IS 1.5" X 3.5". NO SIGNS OF IMPACT DAMAGE TO UPPER SKIN INMar 2, 2011 · Robsin R44RAVENII · Main Rotor BladesSDR CA110222007Magneto · failed(CAN) RT MAGNETO, PIN 10-60646-201, SIN: E09IA097, ABNORMAL OPERATION, SENDING ERRATIC INPUTS TO THE ERPM GAGE AND GOVERNOR. ONCE THE GOVERNOR WAS DISCONECTED, THE ENGINE WAS NOT OPERATING NORMALY, WITH FLUCTUATION IN POWER. THE FLIGHT WAS TERMINATED AND THE AFeb 20, 2011 · Robsin R44RAVENII · Magneto/DistributorSDR CA110214021Pump · failedAUX FUEL PUMP FAILED TO PRIME AND CIRCUIT BREAKER POPPED. REPLACED AUX FUEL PUMP.Feb 11, 2011 · Robsin R44RAVENII · Fuel Boost PumpSDR CA110215009Magneto · failedDURING GROUND RUN LT MAGNETO FOUND TO HAVE BAD MAG DROP. MAGNETO REPLACED.Feb 8, 2011 · Robsin R44RAVENII · Magneto/DistributorSDR CA110215011Servo · stiffSTIFF THROTTLE ARM CAUSES CLUNK NOISE IN THROTTLE LINKAGE. FUEL INJECTION SERVO REPLACED.Feb 6, 2011 · Robsin R44RAVENII · Fuel Control/Reciprocating EnginesSDR CA110201004Pump · failed(CAN) AUX FUEL PUMP CAUTION LIGHT CAME ON IN FLIGHT. AUXILLARY FUEL PUMP REPLACED.Jan 30, 2011 · Robsin R44RAVENII · Fuel Boost PumpSDR CA110131003Bearing · seized(CAN) FAN SHAFT ASSY WAS REMOVED DURING 100 HR INSPECTION. WHEN THE ASSY WAS TO BE RE-INSTALLED THE MOUNTING BOLT FOR THE CLUTCH ACTUATOR COULD NOT BE INSERTED. WEAR MARKS WERE NOTED ON THE MOUNTING FLANGE.Jan 26, 2011 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA110131004Upper Sheave · worn(CAN) UPPER SHEAVE WORN BEYOND LIMITS.Jan 26, 2011 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA110105011Pump · failedPUMP WAS HEARD TO MAKE STRANGE NOISE ON FIRST START OF THE DAY. LATER THAT DAY THE PILOT SHUT DOWN BRIEFLY. ON NEXT START UP ATTEMPT AUX FUEL PUMP CAUTION LIGHT CAME ON AND CIRCUIT BREAKER POPPED. PILOT RESET BREAKER BUT IT IMMEDIATELY POPPED AGAIN. MAINTEDec 30, 2010 · Robsin R44RAVENII · Engine Fuel PumpSDR CA110103010Reservoir · failedPILOT NOTED NOISY HYDRAULIC OPERATION. HYDRAULIC RESEVOIR REPLACED. TSN: 805 HRS.Dec 18, 2010 · Robsin R44RAVENII · Hydraulic Reservoir, MainSDR 2010FA0001254Bracket · brokenPILOT REPORTED THAT AFTER ENGINE START AND DURING GROUND OPERATION WAS UNABLE TO REACH 100 PERCENT. ENGINE RPM DURING ACCELERATION FROM IDLE TO FULL THROTTLE. A NORMAL ENGINE SHUTDOWN WAS PERFORMED. PILOT NOTED MIXTURE CONTROL KNOB COULD NOT BE RETURNED TO FUDec 13, 2010 · N806JR · Robsin R44RAVENII · Fuel Control/Reciprocating EnginesSDR CA101220007Pump · noisy(CAN) AUXILIARY FUEL PUMP MAKING ABNORMAL NOISE. AUXILIARY FUEL PUMP REPLACED.Dec 8, 2010 · Robsin R44RAVENII · Fuel Boost PumpSDR CA101207003Frame · broken(CAN) DURING A ROUTINE POST-FLIGHT INSPECTION BY MAINTENANCE PERSONNEL, THE LOWER FRAME ASSY WAS FOUND CRACKED AT THE UPPER L/H AFT ATTACHMENT POINT. THE BROKEN AREA DID NOT HAVE ANY EVIDENCE OF PRE-EXISTING CRACKS, AND APPEARED TO BE A CLEAN BREAK. THERE WAS Dec 5, 2010 · Robsin R44RAVENII · Fuselage Main, FrameSDR CA101213013Coil · damaged(CAN) MAGNETO INSPECTED AFTER GOVERNOR SURGE, HI-TENSION OUTPUT TANG ON COIL ASSEMBLY FOUND BENT UPWARDS, APPROX 30 DEGREES. TANG WORN THROUGH AND ELECTRICALLY BURNT. CARBON BRUSH ASSEMBLY DESTROYED. INSTALLATION INSTRUCTIONS REQUIRE TANG TO BE FLUSH WITH MAGNDec 3, 2010 · Robsin R44RAVENII · Magneto/DistributorSDR CA101209002Swashplate · damaged(CAN) DRY AND GRITTY SOUND HEARD FROM SWASHPLATE ASSEMBLY DURING MAIN ROTOR COAST DOWN. SWASHPLATE ASSEMBLY REPLACED.Dec 2, 2010 · Robsin R44RAVENII · Main Rotor Mast/SwashplateSDR CA101213012Distributor Blk · cracked(CAN) MAGNETO INSPECTED AFTER GOVERNOR SURGE REPORTED. MOUNTING HOLES ON DISTRIBUTOR BLOCK CRACKED. ALSO NOTED AT TIME OF INSPECTION, MAIN ROLLER BEARINGS HAD NO GREASE LUBRICATION IN/ON THEM. MAGNETO HAD NO HISTORY OF PRIOR DISASSEMBLY. CONFIRMED BY CUSTOMER,Dec 2, 2010 · Robsin R44RAVENII · Magneto/DistributorSDR CA101209004Magneto · erratic(CAN) PILOT NOTED ERRATIC ENGINE TACH INDICATION. RIGHT HAND MAGNETO PN: 10-600646-201 REPLACED. (TC# 20101209004)Nov 17, 2010 · Robsin R44RAVENII · Magneto/Distributor
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