Lycoming O-540-E4C5

Service difficulty reports · 139

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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 = 'O540E4C5'
  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 2026F00125Rudder · no discrepancyTHE PILOT DEPARTED RWY 9 ON THE SUNNY TRANSITION TO VQS AND AT APPROXIMATELY 1 MILE NORTH OF PUNTA LAS MARIAS, THE PIC DECIDED TO RETURN TO SIG DUE TO STIFFNESS OF THE RIGHT RUDDER PEDDLE. AN EMERGENCY WAS NOT DECLARED DUE TO THE PIC HAVING FULL CONTROL OF THJun 16, 2026 · N908VL · Bnorm BN2B26 · Rudder Control SystemSDR 2025F00229Engine · failedFLT NUMBER: DVR023, ENGINE FAILURE AND EMERGENCY LANDING. SHORTLY AFTER DEPARTURE FROM BON, THE CREW EXPERIENCED A LOSS OF FUEL PRESSURE AND OBSERVED A DECREASING OIL PRESSURE ON THE LEFT-HAND (LH) ENGINE. DUE TO THESE CRITICAL INDICATIONS, A PRECAUTIONARY SHAug 15, 2025 · Bnorm BN2A · Engine (Reciprocating)SDR UOIA202507020001Idler Gear · damagedPILOT REPORTED THAT DURING CRUISE FLIGHT FROM TJIG TO TJCP LEFT ENGINE OIL PRESSURE STARTED DROPPING AND AFTER A FEW SECONDS PROPELLER FETHERED BY ITSELF AND ENGINE SHUT DOWN. PILOT PERFORMED ENGINE FAILURE PROCEDURE AS PER FLIGHT MANUAL AND DIVERTED TO TJRV AJul 2, 2025 · N904GD · Bnorm BN2B26 · Engine (Reciprocating)SDR UOIA202506300001Spark Plug · faultedDURING CLIMB PILOT NOTICED LEFT ENGINE SOUNDED ROUGH AND DECIDED TO RETUN TO THE AIRPORT AS PRECAUTION. UPON EXAMINATION MAINTENANCE PERFORMED LEFT ENGINE COLD CHECK AND REPLACED CYLINDERS #1, #3, AND #5 TOP SPARK PLUGS AS PER LYCOMING OH MANUAL CHAPTER 4. PJun 30, 2025 · N903GD · Bnorm BN2A8 · Spark Plug/IgniterSDR 2025F00108Shaft · brokenAT LANDING IN VIEQUES AIRPORT RIGHT ENGINE PRESENTED EXESIVE VIBRATION, PILOT PERFORMED PREVENTIVE SHUTDOWN. ENGINE WAS INSPECTED AND FOUND THE PROPELLER GOVERNOR SHAFT BROKEN. PROPELLER GOVERNOR WAS REMOVED AND OVERHAULED PROPELLER GOVERNOR INSTALLED. OPERATIApr 25, 2025 · N903GD · Bnorm BN2A8 · Propeller GovernorSDR UOIA2025042500006Shaft · brokenAT LANDING IN VIEQUES AIRPORT RIGHT ENGINE PRESENTED EXCESSIVE VIBRATION SO PILOT PERFORMED PREVENTIVE SHUTDOWN. ENGINE WAS INSPECTED AND FOUND THE PROPELLER GOVERNOR SHAFT BROKEN. PROPELLER GOVERNOR WAS REMOVED AND AN OVERHAULED PROPELLER GOVERNOR INSTALLED.Apr 25, 2025 · N903GD · Bnorm BN2A8 · Propeller GovernorSDR VLIA202406250001Brake Disc · crackedDURING THE LANDING ROLL WHEN BRAKES WHERE APPLIED THE R/H BRAKE BEGIN TO DRAG. UPON INSPECTION FOUND THE R/H LANDING GEAR OUTBOARD WHEEL DISC CRACK.Jun 21, 2024 · N864VL · Bnorm BN2A9 · Landing Gear Brake SystemSDR UOIA2023041200006Master Cylinder · blockedAFTER LANDING LOSS BRAKE ACTION.Apr 12, 2023 · N903GD · Bnorm BN2A8 · Master Cylinder/Brake ValveSDR UOIA2023012800005Crankshaft · brokenAFTER LANDING IN CULEBRA, RIGHT ENGINE QUIT ON TAXI TO THE RAMP. ENGINE WAS INSPECTED AND THE ENGINE CRANKSHAFT IDLE GEAR FOUND BROKEN. ENGINE WAS REMOVED AND REPLACED.Jan 28, 2023 · N907GD · Bnorm BN2A26 · Engine (Reciprocating)SDR UOIA2022112200004Control Cable · lack of lubeLEFT PROPELLER GETTING STUCK INTERMITTENT.Nov 22, 2022 · N904GD · Bnorm BN2B26 · Propeller Controlling SystemSDR 2022F00331None · noneLEFT ENGINE SURGING PRECAUTIONARY SHUT DOWN.Aug 29, 2022 · N905GD · Bnorm BN2 · Engine (Reciprocating)SDR 2021F00092Gear · brokenPILOT PERFORMED PRE FLIGHT MAGNETO CHECK. THE LH MAG WAS INOPERATIVE. FURTHER INSPECTION BY MX PERSONNEL DISCOVERED THE LH MAGNETO DRIVE GEAR WAS MISSING 3 TEETH; MAKING THE MAGNETO NOT FUNCTIONAL.Apr 28, 2021 · N404WB · Bnorm BN2A26 · Magneto/DistributorSDR UOIA2020111300002Governor · damagedLOSS OF RPM ON TAKEOFF.Nov 12, 2020 · N920GD · Bnorm BN2AMK3 · Engine Pressure Ratio (EPR)SDR UOIA2020071400001Cylinder · damagedENGINE LOST POWER.Jul 14, 2020 · N913GD · Bnorm BN2A8 · Reciprocating Engine Cylinder SectionSDR UOIA2019009130000Crankshaft · failedENGINE CRANKSHAFT GEAR FAILURE.Sep 7, 2019 · N917GD · Bnorm BN2A27 · Reciprocating Engine Power SectionSDR UOIA2017080300001Caliper · brokenRIGHT BRAKE FAILED TO OPERATED, THE AIRCRAFT GO OUT OF RUNWAY.Aug 3, 2017 · N906GD · Bnorm BN2A26 · Landing Gear Brake SystemSDR UOIA201703070001Shaft · brokenRIGHT PROPELLER GOES TO FEATHER CONDITION. PROPELLER GOVERNOR SHAFT BROKEN.Jul 3, 2017 · N917GD · Bnorm BN2A27 · Propeller GovernorSDR UOIA20170803Rudder · inoperativeDURING FLIGHT RUDDERS STOPPED RESPONDING.Mar 8, 2017 · N906GD · Bnorm BN2A26 · Rudder Control SystemSDR UOIA201606131114Caliper · leakingLOST RT BRAKES EMERGING THE RUNWAY FOR TAKEOFF. R & R RT MAIN INBD CALIPER AND LINING.Jun 10, 2016 · N906GD · Bnorm BN2A · Landing Gear Brake SystemSDR UOIA201510071114Stud · brokenLEFT ENG CYLINDER NR 3 CRANKCASE STUDS BROKEN.Oct 6, 2015 · N906GD · Bnorm BN2A26 · Reciprocating Engine Power SectionSDR RI9A20150809001Starter · bindingBENDIX ON STARTER OF RT ENGINE FAILED TO DISENGAGE AFTER STARTUP. R & R STARTER WITH NEW. NO FURTHER DISCREPANCIES NOTED.Aug 3, 2015 · N5891V · Bnorm BN2A26 · Engine StarterSDR LU4R2015020618118Blade · crackedPROPELLER BLADE FOUND CRACKED AT SHANK.Feb 3, 2015 · N908GD · Bnorm BN2A26 · Propeller Blade SectionSDR WS9R2015FA0000008Crankshaft · brokenENGINE RECEIVED FOR O/H DUE TO HIGH METAL. DURING DISASSEMBLY, IT WAS DISCOVERED THAT A PIECE OF THE CHEEK ON THE CRANKSHAFT HAD BROKEN OFF ALLOWING THE COUNTERWEIGHT TO IMPACT CONNECTING RODS AND THE CRANKSHAFT. THE COUNTERWEIGHT PINS WERE UNDAMAGED. THE CDec 22, 2014 · N5891V · Bnorm BN2A26 · Reciprocating Engine Power SectionSDR UOIA20141114001Stud · brokenRIGHT ENG CYLINDER BASE NR 3 STUDS BROKEN.Nov 12, 2014 · N901GD · Bnorm BN2A · Reciprocating Engine Power SectionSDR UOIA2014FA0000525Cylinder · crackedLEFT ENGINE, CYLINDER 2, CENTER AREA CRACKED.Sep 9, 2014 · N908GD · Bnorm BN2A · Reciprocating Engine Cylinder SectionSDR CA140506002Adapter · cracked(CAN) AIRCRAFT IS AN AMATEUR BUILT, ENGINE AND SUBJECT OIL FILTER ADAPTER ARE USED ON MANY CERTIFIED ACFT. DURING ANNUAL INSPECTION SUBSTANTIAL OIL LEAK WAS NOTED ON BACK OF ENGINE. TROUBLESHOOTING SOURCED OIL LEAK TO CRACK ON OIL FILTER ADAPTER EAR. CRACK CMay 5, 2014 · Reciprocating Engine Oil SystemSDR CA140204009Spring · broken(CAN) DURING 100HR INSPECTION, FOUND SPRING BROKEN ON INTAKE VALVE LT ENGINE.Jan 20, 2014 · Bnorm BN2B27 · Reciprocating Engine Cylinder SectionSDR ISCA2014F00011Case · damagedPILOT REPORTED THAT ON DOWNWIND IN THE TRAFFIC PATTERN AT THE DESTINATION AIRPORT, HEARD A LOUD "POP", AND AND EXPERIENCED A POWER LOSS ON LT ENGINE. NOTICED OIL AND SMOKE COMING OUT OF LT ENGINE COWL. SHUTDOWN ENGINE AND FEATHERED PROPELLER IAW THE ENGINE Oct 4, 2013 · N779KS · Bnorm BN2A27 · Reciprocating Engine Power SectionSDR ISCA2013111400001Retainer · disintegratedPILOT REPORTED THAT ON DOWNWIND, IN TRAFFIC PATTERN AT DESTINATION AIRPORT, HEARD A LOUD "POP," AND EXPERIENCED A POWER LOSS ON THE LT ENGINE. ALSO NOTICED OIL AND SMOKE COMING OUT OF LT ENGINE COWL. SHUTDOWN ENGINE AND FEATHERED PROPELLER IAW ENGINE FAILUROct 4, 2013 · N779KS · Bnorm BN2B27 · Reciprocating Engine Power SectionSDR 2013FA0000584Case · crackedWHILE TROUBLESHOOTING ROUGH RUNNING ENGINE ON MORNING RUNUP, ENGINE CASE FOUND WITH LARGE CRACK UNDER THE NR 2 CYLINDER, ENGINE REMOVED FROM SERVICE.Oct 1, 2013 · N80KM · Bnorm BN2A · Reciprocating Engine Power SectionSDR CA130516009Rod End · loose(CAN) ROD END BEARING NOTED TO BE MOVING DUE TO LOOSE TAPER PINS IN FWD END OF RUDDER DRIVE ROD. ROD REPAIRED AND RE-INSTALLED.May 1, 2013 · Bnorm BN2A8 · Flight Control SystemSDR RI9A20120807557Crankcase · crackedPILOT HEARD RIGHT ENGINE RUNNING ROUGH AND SAW THE OIL PRESSURE DROP. SHUT THE ENGINE DOWN AND MADE A SAFE LANDING AT OUZINKIE AIR STRIP. UPON INSPECTION FOUND A CRACK IN THE CRANKCASE BETWEEN THE NR 3 AND NR 5 CYLINDERS. A NEW ENGINE WAS INSTALLED. AFTERAug 5, 2012 · N5891V · Bnorm BN2A26 · Reciprocating Engine Power SectionSDR RI9A20120617001Regulator · malfunctionedPILOT SMELLED ODOR AND SAW SMOKE FROM INSTRUMENT PANEL. PILOT RETURNED TO KODIAK AIRPORT WITHOUT INCIDENT AND MADE A NORMAL LANDING. ON INVESTIGATION, IT WAS FOUND THE RIGHT ENGINE ALTERNATOR VOLTAGE REGULATOR HAD CAUSED AN OVERVOLTAGE SITUATION AND THE SMOKJun 6, 2012 · N5891V · Bnorm BN2A26 · DC RegulatorSDR RI9A2012FA0000125Case · damagedPILOT EXPERIENCED AN ROUGH RUNNING LT ENGINE 20 MINUTES INTO THE FLIGHT. THE PILOT REPORTED THAT ALL LT ENGINE INSTRUMENT INDICATIONS WERE NORMAL AT THAT TIME. OIL PRESSURE DROPPED TO ZERO, TURNED BACK TO AIRPORT. DECLARED AN EMERGENCY AND LANDED WITHOUT ANFeb 20, 2012 · N2233Z · Bnorm BN2A26 · Reciprocating Engine Power SectionSDR CA111207006Alternator · failed(CAN) NOTED ALTERNATOR OUT LIGHT DURING RUNUP. LT ALTERNATOR WAS FOUND SEIZED AND DISCOLORED BY HIGH TEMPERATURE. ALTERNATOR BELT WAS ALSO FOUND BROKEN. ALTERNATOR TT WAS 119.5 SINCE O/H. ALTERNATOR WAS REPLACED WITH SERVICEABLE SPARE AND RETURNED TO SERVINov 27, 2011 · Bnorm BN2A27 · AC Generator-AlternatorSDR UOI2011F00001Bolt · brokenBOLT DAMAGE, IDLER GEAR SHAFT BOLT.Apr 7, 2011 · N904GD · Bnorm BN2B26 · Engine (Reciprocating)SDR ISCA2011022201Retaining Nut · failedIN CRUISE FLT, AT 2500 FT AGL & APPROX 15 MILES FROM DESTINATION, PILOT NOTED A SLIGHT VIBRATION ON STARBOARD (RT) ENG FOLLOWED BY A LOUD BANG. IN RESPONSE, PILOT SHUT THE ENG DOWN, AND FEATHERED PROP. AFTER LANDING, THE POST-FLIGHT INSP REVEALED THE NR 3 CYFeb 18, 2011 · N779KS · Bnorm BN2A26 · Reciprocating Engine Cylinder SectionSDR UOI2011F00000Drive Assy · worn(ENGINE INTERNAL) PROPELLER GOVERNOR DRIVE DAMAGE.Dec 31, 2010 · N908GD · Bnorm BN2A26 · Propeller GovernorSDR CA100723007Impulse Coupling · brokenMAG WAS RECEIVED DUE TO SEIZED CONDITION. UNKNOWN WHEN IT OCCURRED DURING ENG OPERATION. 1 IMPULSE FLYWEIGHT WAS FOUND BROKEN AWAY FROM IMPULSE ASSY AND WEDGED BETWEEN THE OTHER FLYWEIGHT AND THE MAG HOUSING. THE IMPULSE COUPLING WAS REMOVED AND THE RIVET THJul 23, 2010 · Bnorm BN2A26 · Magneto/DistributorSDR CA090119013Sleeve · looseON GROUND RUN IT WAS DISCOVERED THAT CYLINDER NR 5 ON THE RIGHT ENGINE, EGT WAS NOTICABLY HIGHER THAN OTHER CYLINDERS. INDUCTION TUBE WAS REMOVED FROM THE CYLINDER, THE INDUCTION TUBE SLEEVE IN THE OIL SUMP WAS FOUND TO BE LOOSE.Jan 18, 2009 · Bnorm BN2A26 · Engine Air Intake SystemSDR CA081015002Spring · broken(CAN) DURING INSPECTION OF LYCOMING SB 388C FOUND BROKEN INNER SPRING PART NR AEL11795 ON INTAKE AND EXHAUST VALVE.Oct 6, 2008 · Bnorm BN2B27 · Reciprocating Engine Cylinder SectionSDR G0C2008F00000Cylinder Head · separatedNR 5 CYLINDER FAILED DUE TO CYLINDER HEAD SEPARATION FROM BARREL. AC IMMEDIATELY DIVERTED TO NEAREST AIRFIELD FOR REPAIR. AC LANDED SAFELY, POWER SETTING AT FAILURE WAS 25 IN MAN PRESSURE, 2200 RPM. AC WAS IN CRUISE SEGMENT. ENG WAS IN COMPLIANCE WITH ALL Jul 3, 2008 · N2119V · Bnorm BN2B26 · Reciprocating Engine Cylinder SectionSDR CA080608003Nut · stripped(CAN) DURING A TRAINING FLIGHT, ON OVERSHOOT FROM A ABORTED LANDING, FLAPS RETRACTED UN-COMMANDED. PILOT REDUCED POWER AND WAS ABLE TO LAND STRAIGHT AHEAD ON REMAINING RUNWAY. INSPECTION FOUND THE FLAP ACTUATOR STRIPED. ACTUATOR WAS REMOVED AND SENT FOR OVERHJun 3, 2008 · Bnorm BN2A26 · Trailing Edge Flap ActuatorSDR FFKA020108125Drive Shaft · shearedPILOT REPORTED A LOSS OF ENGINE RPM CONTROL (RUNAWAY PROP). AFTER REPLACING THE PROPELLER GOVERNOR AND THE PROPELLER THERE WAS STILL NO PROP CONTROL. MAINTENANCE FURTHER INVESTIGATED THE PROBLEM AND FOUND THE PROPELLER GOVERNOR DRIVE SHAFT GEAR SHEARED. AFTFeb 1, 2008 · N4817S · Piper PA32260 · Engine (Reciprocating)SDR CA070202008Collar · broken(CAN) NOSE LANDING GEAR STEERING COLLAR, BROKE IN TWO PIECES DURING GROUND HANDLING. COLLAR CRACKED AFT GREASE FITTING HOLE ANF FWD RT RELEASE DOG SLOT. (TC NR 20070202008)Jan 30, 2007 · Bnorm BN2A26 · Steering UnitSDR 2006F00037Bearing · wornON SCHEDULED INSPECTION FOUND VERY SMALL METAL PARTICLES IN OIL FILTER, NONE FOUND IN FINGER SCREEN. REMOVED ENGINE AND SEND FOR INSPECTION AND REPAIR. AFTER COMPLETION OF ENGINE TEAR DOWN EVERYTHING WAS WITHIN SPECS BUT THE LT MAGNETO DRIVE GEAR BEARING WORAug 31, 2006 · N131JL · Bnorm BN2A · Magneto/DistributorSDR CA070126004Oil Cooler · cracked(CAN) OIL LEAK AROUND CASTING PORT ON THE OIL COOLER ASSEMBLY. (TC NR 20070126004)Aug 31, 2006 · Bnorm BN2A · Engine Oil CoolerSDR CA070126003Magneto · loose(CAN) ROUGH RUNNING ON RUNUP. FOUND ATTACHMENT FLANGE ON MAGNETO LOOSE. (TC NR 20070126003)Jul 5, 2006 · Bnorm BN2A · Magneto/DistributorSDR CA060702001Wheel · cracked(CAN) ON TAXI AFTER LDG, A VIBRATION WAS NOTED ORIGINATION ON THE LH LDG GEAR. IT WAS ORIGINALLY THOUGHT TO BE A WHEEL OUT OF BALANCE. ON INSPECTION, A CRACK WAS OBSERVED ON THE INNER WHEEL 1/2 OUTBOARD ASSEMBLY. THE CRACKED RIM WAS REPLACED WITH NEW CLEAVLJun 13, 2006 · Bnorm BN2A26 · Wheel/Ski/FloatSDR AU510002180Valve · mismanufactured(AUS) CARBURRETOR MIXTURE VALVE FAULTY MANUFACTURE. INSPECTION FOUND THE BRASS VALVE END OF THE MIXTURE VALVE ASSEMBLY HAD NOT BEEN CORRECTLY SWAGED CAUSING THE BRASS END TO TURN ON THE CABLE. (CASA NR 510002180)Dec 12, 2005 · Fuel Control/Reciprocating Engines
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