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 EVGR201611080001Sprag Assy · making metalDURING THE 100 HOUR INSPECTION, THE CLUTCH LUBRICATION INSPECTION WAS PERFORMED PER ROBINSON MM 7.210. WHEN THE OIL WAS INSPECTED SEVERAL PIECES OF METAL WERE FOUND. ROBINSON WAS CONTACTED AND THE CLUTCH ASSEMBLY WAS REMOVED FROM THE AIRCRAFT AND AN OVERHAOct 13, 2016 · N622 · Robsin R44RAVENII · Engine/Transmission CouplingSDR 2016FA0000319Exhaust Valve · stuckPILOT REPORTED INTERMITTENT LOSS OF POWER ALONG WITH ENGINE RUNNING ROUGH. CHECKED EXHAUST VALVE GUIDE CLEARANCE IAW SB-388C AND FOUND 1 EXHAUST VALVE GUIDE WITH .002 CLEARANCE. (THE MINIMUM IS .015) REAMED THE GUIDE, ALONG WITH 3 OTHERS THAT WERE BELOW LIMIJul 2, 2016 · N467NH · Robsin R44RAVENII · Reciprocating Engine Power SectionSDR CA160301018Rod · broken(CAN) THE FWD LOWER BRACKET(LOWER ATTACHMENT GUIDE ROD) ON LT POD CRACKED AND BROKE IN FLIGHT ON AIRCRAFT, CAUSING A NOISE AND AIRCRAFT YAW . PILOT LANDED IMMEDIATELY AND REMOVED POD.Feb 27, 2016 · Robsin R44RAVENII · Fuselage Main, Attach FittingsSDR 2016FA0000032Servo · malfunctionedTHIS ACFT ENTERED A PRACTICE AUTOROTATION OVER A RUNWAY. UPON ROLLING THE THROTTLE DOWN, THE ENGINE DIED. ACFT MADE AN OTHERWISE UNEVENTFUL FULL-DOWN AUTOROTATION. CLUTCH ACTUATOR WAS DISENGAGED AND ENGINE RESTARTED NORMALLY. PILOT WAS UNABLE TO GET ENGINEJan 4, 2016 · N144BZ · Robsin R44RAVENII · Aircraft Fuel Distribution SystemSDR CA151021004Bushing · cracked(CAN) FOUND BUSHING CRACKED. THE BUSHING WAS OBSOLETE PART IAW TCM SB663A.Oct 9, 2015 · Robsin R44RAVENII · Magneto/DistributorSDR EVGR20150820Contact · debondedTHERE WAS A ROUGH MAGNETO DROP DURING RUN-UP. TROUBLESHOOTING REVEALED A LARGE MAXIMUM POINT GAP AND CORRESPONDING ERRONEOUS E-GAP. CLOSER EXAMINATION REVEALED THE TUNGSTEN CONTACT BECAME UNATTACHED FROM THE RIVET ON THE FRAME SIDE OF THE CONTACT ASSEMBLY. Aug 14, 2015 · N8YL · Robsin R44RAVENII · Magneto/DistributorSDR CA150810004Exhaust Valve · stuck(CAN) STICKY EXHAUST VALVE (ROUGH RUNNING).Aug 6, 2015 · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR CA150807004Blade · damaged(CAN) MAIN ROTOR BLADE, VOID DISCOVERED WHILE CARRYING OUT AD 2011-12-10/SB 72A, TAP TEST. HELICOPTER GROUNDED. NEW BLADES ON ORDER.Aug 5, 2015 · Robsin R44RAVENII · Main Rotor BladesSDR CA150612007Pump · leaking(CAN) THIS FUEL PUMP WAS FOUND TO BE LEAKING AFTER 1.9 HOURS’ TIME SINCE NEW. THIS FUEL PUMP HAD BEEN INSTALLED TO REPLACE A PREVIOUSLY LEAKING FUEL PUMP OF THE SAME PART NUMBER, WHICH HAD THE SAME FAILURE AFTER ONLY 2.1 HOURS’ TIME SINCE NEW. THE ORIGINAL FMay 28, 2015 · Robsin R44RAVENII · Engine Fuel PumpSDR S4HR2015FA0000275Bladder · contaminatedMFG HAS COME OUT WITH A SB 78B, TO REPLACE THE MAIN AND AUX FUEL TANKS WITH BLADDER TYPE TANKS FOR THIS SERIES ROTORCRAFT. HAVE NOTICED THAT AT THE FIRST INSPECTION FOLLOWING THE FUEL TANK MODIFICATION THA THE GASCOLATOR/AIR FRAME FUEL FILTER IS HALF COVERED May 27, 2015 · N440SH · Robsin R44RAVENII · Fuel StorageSDR CA150612006Pump · leaking(CAN) THE FUEL PUMP WAS NOTED TO BE LEAKING FUEL BY GROUND CREWS AFTER 2.1 HOURS’ TIME SINCE NEW. THE FUEL PUMP HAD BEEN INSTALLED NEW ON THE ENGINE. AS PART OF A NEW EXCHANGE ENGINE PURCHASED & INSTALLED DURING AN OVERHAUL. THE FUEL PUMP WAS LEAKING FROM TMay 26, 2015 · Robsin R44RAVENII · Engine Fuel PumpSDR CA150508001Valve · broken(CAN) DURING PERFORMANCE OF SB388C AND SB301B. THE NR 6 CYLINDER EXHAUST VALVE OUTER SPRING WAS FOUND BROKEN NEAR THE UPPER SPRING SEAT. NO ENGINE PERFORMANCE ISSUES WERE NOTED PREVIOUSLY AND ALL NRS FROM SB388C WERE WITHIN LIMITS. INNER AND OUTER EXHAUST VMay 6, 2015 · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR CA150313012Grease · frozen(CAN) TAIL ROTOR PEDALS INCLEASINGLY STIFF DURING FLIGHT, NO MECHANICAL OBSTRUCTION FOUND. PEDAL BEARING BLOCK GREASE FREEZING DUE TO LOW OAT. POSSIBLE IMPROPER GREASE INSTALL. BLOCKS REMOVED, CLEANED, INSPECTED AND REGREASED WITH A257-1 GENERAL PURPOSE GREAFeb 19, 2015 · Robsin R44RAVENII · Tail Rotor Control SystemSDR JMXA2015020900002Intake Valve · brokenPARTIAL POWER LOSS & ENG ROUGHNESS REPORTED. BROKEN INTAKE VLV FOUND ON NR 5 CYLINDER.Feb 4, 2015 · N4126A · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR CA150205011Pump · failed(CAN) AUXILIARY FUEL PUMP LOW PRESSURE WARNING ILLUMINATED DURING FLIGHT. PUMP REPLACED AFTER LANDING. DEFECT RECTIFIED.Feb 3, 2015 · Robsin R44RAVENII · Engine Fuel PumpSDR CA141120015Magneto · failed(CAN) TEMPORARY POWER LOSS IN FLIGHT. SUSPECT POOR TACHOMETER SIGNAL FROM MAGNETO TACHOMETER POINTS TO ENGINE RPM GOVERNOR.Nov 5, 2014 · Robsin R44RAVENII · Magneto/DistributorSDR CA141103026Jackscrew · damaged(CAN) UPON START UP IN THE FIELD AT A REMOTE SITE, THE PILOT FIRED THE ENGINE AS NORMAL AND ENGAGED THE CLUTCH, AS HE WAS AWAITING THE CLUTCH ENGAGEMENT, HE REPORTED HEARING A LOUD BANG AND NOTICED HIS ENGINE RPM FLUCTUATED. HE IMMEDIATELY SHUTDOWN AND CALLEDNov 1, 2014 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA141014013Magneto · failed(CAN) ON APPROACH TO A LEASE SITE THE ENGINE QUIT AND PILOT HAD TO AUTOROTATED INTO CUTLINE. ENGINEER REPLACED MAGNETO. SUPPLEMENTAL INFORMATION: "SYMPTOMS APPEARED ON SET UP FOR FINAL APPROACH APPROX 300-400 FT AGL, ENGINE RPM DROPPED SIGNIFICANTLY FOLLOWED Oct 12, 2014 · Robsin R44RAVENII · Magneto/DistributorSDR CA141103033Jackscrew · damaged(CAN) DURING STARTING PROCEDURE, IN A REMOTE SITE, THE PILOT FIRED THE ENGINE AS NORMAL, ENGAGED THE CLUTCH AND WAS WAITING FOR IT TO ACTUATE WHEN HE HEARD A LOUD BANG AND ENGINE RPM INCREASED. HE IMMEDIATELY SHUT THE ENGINE OFF AND CALLLED MAINTENANCE. FOLLOct 11, 2014 · Robsin R44RAVENII · Engine/Transmission CouplingSDR CA141017006Contact · failed(CAN) ENGINE TACH STARTED FLUCTUATING AND GOVERNOR BECAME INEFFECTIVE. PILOT OVERRODE GOVERNOR AND LANDED. UPON DISSASEMBLY OF MAGNETO NOTED TACH POINT CONTACT HAD BECOME DISLODGED FROM IT`S HOLDER. LOOKS LIKE THE SOLDER CONNECTION FAILED.Sep 21, 2014 · Robsin R44RAVENII · Magneto/DistributorSDR CA140808011Block · cracked(CAN) FOUND CRACKED WHERE THE BUSHING IS INSTALLED IN THE BLOCK.Aug 8, 2014 · Robsin R44RAVENII · Magneto/DistributorSDR CA140808010Block · cracked(CAN) BLOCK DATE CODE 11 09, FOUND TWO CRACKS, ONE WHERE THE BUSHING IS INSTALLED IN THE BLOCK THE SECOND AT ONE OF THE HOLD DOWN SCREW HOLES.Aug 7, 2014 · Robsin R44RAVENII · Magneto/DistributorSDR CA140730009Sensor · malfunctioned(CAN) DURING GROUND RUN OPERATIONS, FOLLOWING SCHEDULED INSPECTION, AIRFRAME/ENGINE. ENGINE OIL PRESSURE INDICATION SLOW AND/OR ERRATIC RESPONSE AT INITIAL START UP. IT HAS BEEN DETERMINED THAT THE ELECTRICAL COMPONENTS OF THE OIL PRESSURE INDICATING SYS AREJul 29, 2014 · Robsin R44RAVENII · Engine Oil PressureSDR CA140723004Blade · cracked(CAN) DURING A ROUTINE 100 HR INSPECTION AME WAS PERFORMING MAIN ROTOR BLADE INSPECTION AND NOTED A HAIR LINE CRACK WERE TRIM TAB IS BONDED TO BLADE. AFTER CONSULTING TEC SUPPORT THEY SAID THE BLADE IS NOT REPAIRABLE AND IS SCRAP. DATE OF INSTALL OF THE BLADJul 23, 2014 · Robsin R44RAVENII · Main Rotor BladesSDR CA140716008Bearing · melted(CAN) UPON LANDING AND DURING COOL DOWN PILOT NOTICED A FUNNY ODOR AND HEARD A SQUEALING NOISE. FOLLOWING SHUTDOWN HE NOTICED THE ALTERNATOR BELT SMOKING AND CALLED MAINTENANCE. THE ALTERNATOR LIGHT NEVER DID COME ON. WHEN MAINTENANCE ARIVED THE ALTERNATOR Jul 15, 2014 · Robsin R44RAVENII · AC Generator-AlternatorSDR FAA2014071400132Baffle · crackedBAFFLING THAT SEPARATES THE OIL COOLER AND THE NR 2 CYLINDER, CRACKED AND SEPARATED. IT CAME TO REST ON THE STARTER POSITIVE TERMINAL AND NR 2 CYLINDER ROCKER BOX OIL RETURN LINE, PN 72703. WHEN THE STARTER WAS ENGAGED THE ELECTRICAL CURRENT ARCED THROUGH THJul 14, 2014 · N491SA · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR CA140623022Nut · cracked(CAN) ON REMOVAL OF ENGINE, A CRACKED NUT WAS FOUND ON ONE OF THE BOLTS HOLDING THE ENGINE IN.Jun 20, 2014 · Robsin R44RAVENII · Engine Mount SectionSDR CA140513003Block · cracked(CAN) BLOCK DATE CODE 12-03, BLOCK FOUND CRACKED WHERE THE BUSHING IS INSTALLED IN THE BLOCK.May 9, 2014 · Robsin R44RAVENII · Magneto/DistributorSDR CA140414011Bearing · lack of lube(CAN) DURING THE 50 HOUR INSPECTION OF THE HELICOPTER, THE LOWER FAN SHAFT BEARING WAS FOUND TO BE EXTRUDING A BLACK RESIDUE. THE LOWER BEARING WOULD NORMALLY SHOW SOME LEAKAGE OF GREASE DURING THE FIRST FEW HUNDRED HOURS OF BREAK-IN. SUSPECT THE BEARING ASSApr 14, 2014 · Robsin R44RAVENII · Rotorcraft Cooling Fan SystemSDR CA140221023Tachometer · inaccurate(CAN) INCORRECT READING OF DUAL TACH AT 100 PERCENT RPM. DUAL TACH REPLACED.Feb 20, 2014 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR CA140224020Servo · leaking(CAN) HYDRAULIC SERVO FOUND TO BE LEAKING FLUID FROM TOP SEAL. HYDRAULIC SERVO SN: 12384, TSO 1711, ALSO FOUND TO BE LEAKING FROM TOP SEAL. BOTH SERVOS REPLACED.Feb 19, 2014 · Robsin R44RAVENII · Rotorcraft Servo SystemSDR CA140212002Magneto · leaking(CAN) DURING 100 HR INSPECTION, ENGINE OIL WAS FOUND TO BE LEAKING INTO THE MAGNETO POINTS. MAGNETO REPLACED.Feb 8, 2014 · Robsin R44RAVENII · Magneto/DistributorSDR CA140204003Valve · damaged(CAN) DURING 100 HR INSPECTION, VALVE COVERS WERE REMOVED FOR INSPECTION. SCORING OF INTAKE VALVE STEM WAS NOTED ON CYLINDERS 1, 3 & 5. ENGINE REMOVED FOR REPAIR.Jan 26, 2014 · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR CA140130005Block · cracked(CAN) BLOCK FOUND CRACKED WHERE THE BUSHING IS INSTALLED IN THE BLOCK.Jan 24, 2014 · Magneto/DistributorSDR CA140116004Points · contaminated(CAN) GOVERNOR READING LOW WHEN COLD, ALSO HAS TO BE MONITORED SO IT DOES NOT OVERSPEED AT TOP END. OIL FOUND IN MAGNETO GOVERNOR POINTS. MAGNETO REPLACED.Jan 13, 2014 · Robsin R44RAVENII · Magneto/DistributorSDR CA131216025Clamp · loose(CAN) PILOT REPORTED A LEAK AT INNER CLAMPS OF MAIN ROTOR SPINDLES SPINDLES DRAINED, INNER CLAMPS TIGHTENED, AND SPINDLES SERVICED.Dec 14, 2013 · Robsin R44RAVENII · Main Rotor HeadSDR CA131202018Governor · malfunctioned(CAN) GOVERNOR CAUSING LOW ENGINE RPM. GOVERNOR REPLACED.Nov 19, 2013 · Robsin R44RAVENII · Fuel Controlling SystemSDR CA131121005Bearing · failed(CAN) PILOT NOTED AN ABNORMAL NOISE FOLLOWING ENGINE SHUTDOWN EMANATING FROM THE TAIL ROTOR DRIVE SHAFT. INSPECTION FOUND UNSERVICEABLE BEARING. TAIL ROTOR DRIVE SHAFT REPLACED.Nov 14, 2013 · Robsin R44RAVENII · Tail Rotor Drive ShaftSDR CA131120006Magneto · leaking(CAN) DURING 50/100 HR INSPECTION OF THE ACFT, THE RT MAGNETO WAS FOUND TO HAVE AN INTERNAL OIL LEAK. MAGNETO REPLACED.Nov 11, 2013 · Robsin R44RAVENII · Magneto/DistributorSDR CA131120007Gear · worn(CAN) DURING 50/100 HR INSPECTION OF THE ACFT, THE STARTER BENDIX GEAR WAS FOUND TO BE WORN. STARTER REPLACED.Nov 11, 2013 · Robsin R44RAVENII · Engine StarterSDR CA131031001Pump · leaking(CAN) DURING HELICOPTER 50 HR INSPECTION, THE ENGINE DRIVEN FUEL PUMP WAS FOUND TO BE LEAKING OIL FROM THE WEEP HOLE. FUEL PUMP REPLACED.Oct 26, 2013 · Robsin R44RAVENII · Engine Fuel PumpSDR CA131030007Distributor Gear · malfunctioned(CAN) PRIOR TO DEPARTURE A "MAG-DROP" TEST WAS CARRIED OUT AND BOTH MAGNETOS WERE FUNCTIONING NORMALLY. AFTER TAKEOFF AND DURING A HOVER TAXI PRIOR TO DEPARTURE THE PILOT NOTICE THE ENGINE WAS RUNNING ROUGH AND MORE THAN NORMAL ENGINE POWER WAS REQUIRED FOR HOOct 25, 2013 · Robsin R44RAVENII · Magneto/DistributorSDR CA131112012Starter · intermittent(CAN) STARTER FOUND TO BE INTERMITTENT. STARTER REPLACED.Oct 25, 2013 · Robsin R44RAVENII · Engine StarterSDR CA131024004Bushing · loose(CAN) BLOCK DATE CODE 06, 11, BLOCK FOUND WITH THE BUSHING VERY LOOSE IN THE BLOCK. THE DISTRIBUTOR GEAR TEETH ARE WORN AND ONE BROKEN.Oct 23, 2013 · Magneto/DistributorSDR EVGR20140110Transmitter · leakingA BLUE FUEL STAIN ON HORIZONTAL FIREWALL WAS FOUND DURING PREFLIGHT. FURTHER EXAMINATION WITH A LIGHT AND INSPECTION MIRROR, AND OBSERVING AN ONGOING DRIP EVERY 35 SECONDS, EASILY CONFIRMED THAT FUEL WAS COMING FROM CENTER STUD, WHERE WIRE TERMINAL RING ATTACOct 22, 2013 · N622 · Robsin R44RAVENII · Fuel Quantity SensorSDR CA131024003Reservoir · venting(CAN) HYDRAULIC RESERVOIR WAS FOUND TO BE VENTING FLUID DURING ACFT 50 HR INSPECTION. HYDRAULIC RESERVOIR REPLACED.Oct 17, 2013 · Robsin R44RAVENII · Hydraulic Reservoir, MainSDR CA131017003Battery · discharged(CAN) PILOT PERFORMED FUNCTION TEST OF THE ELT. TEST RESULT INDICATED LOW ELT BATTERY VOLTAGE. BATTERY EXPIRATION DATE IS JANUARY 2015. ACFT ELT WAS REPLACED.Oct 14, 2013 · Robsin R44RAVENII · Emergency Locator BeaconSDR CA131007016Reservoir · venting(CAN) DURING 50/100 HR INSPECTION OF THE ACFT THE HYDRAULIC RESERVOIR WAS FOUND TO BE VENTING FLUID. HYDRAULIC RESERVOIR REPLACED.Oct 7, 2013 · Robsin R44RAVENII · Hydraulic Reservoir, MainSDR EVGR2013120400001Coil · crackedTHE MAGNETOS ON THIS HELICOPTER WERE BEING O/H DUE TO CALENDAR TIME. IT SHOULD ALSO BE NOTED THAT BOTH MAGNETOS WERE RUNNING FLAWLESSLY PRIOR TO REMOVAL. THE COILS IN BOTH MAGNETOS WERE CRACKED IN THE SAME PLACE, WITH THE SAME LENGTH OF CRACK, ABOUT 1" LONG.Sep 25, 2013 · N788G · Robsin R44RAVENII · Magneto/DistributorSDR EVGR2013120400002Coil · crackedTHE MAGNETOS ON THIS HELICOPTER WERE BEING O/H DUE TO CALENDAR TIME. IT SHOULD ALSO BE NOTED THAT BOTH MAGNETOS WERE RUNNING FLAWLESSLY PRIOR TO REMOVAL. THE COILS IN BOTH MAGNETOS WERE CRACKED IN THE SAME PLACE, WITH THE SAME LENGTH OF CRACK (ABOUT 1" LONG)Sep 25, 2013 · N788G · Robsin R44RAVENII · Magneto/Distributor
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