Lycoming O-540 series
Service difficulty reports · 107
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 = 'O540' 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.
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 = 'O540' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR 2026FA0000347Thrust Button · faultyDURING MAJOR OVERHAUL INSTALLED SUPERIOR ROCKER SHAFT THRUST BUTTONS P/N SL12893.INFORMATION THAT WE RECEIVED STATED THAT FAULTY THRUST BUTTONS WILL FLOAT IN WATER AND GOOD PARTS WILL SINK. WE PERFORMED THIS TEST ON EVERY LOT NUMBER IN OUR INVENTORY AND FOUND SDR 2020FA0000280Gearbox · making metalDURING THE ANNUAL INSPECTION OF THE AIRCRAFT, IT HAS BEEN FOUND MAGNETIC PARTICLES ON THE MGB DETECTOR CHIP. THE QUANTITY OF MAGNETIC PARTICLES IS HIGH, BUT THE LIGHT OF THE DETECTOR WAS NOT ON, ALTHOUGH IT HAS BEEN CHECKED THAT IT WORKS.
ACCORDING TO THE SISDR 2019FA0000145Push-Pull Cable · defectiveAFTER ENGINE INSTALLATION THROTTLE SPRING BACK WAS EXCESSIVE WITH LOSS OF THROTTLE CONTROL. THROTTLE WOULD GLADLY GO TO IDLE AND STAY THERE EVEN WHEN FULLY ADVANCED. FACTORY AIRFRAME ATTACHMENT IS ON THE FLEXIBLE CABLE 2.5 INCHES AWAY FROM SOLID ATTACHMENT SECSDR CA190213015Pin · dislodged(CAN) IMPULSE COUPLING PIN (NO PART NUMBER FOR ONLY THE PIN) NORMALLY PRESSED INTO MAGNETO HOUSING HAD COME OUT OF THE HOUSING ALLOWING OIL TO ENTER THE CASE OF THE MAG, THE PIN (1/4 INCH DIAMETER BY 1 1/8 INCH LONG) WAS FLUNG LOOSE AND CAME TO REST AT THE BOTSDR EVGR2019030600001Contact Breaker · openTHE OVERHAULED MAGNETO WAS PURCHASED. UPON INSTALLATION OF THE MAGNETO, THE TACHOMETER DID NOT WORK. FURTHER TROUBLESHOOTING REVEALED THAT THE TACHOMETER CONTACT ASSEMBLY HAD NO CONTINUITY ACROSS THE POINTS. THE CONTACT ASSEMBLY WAS REPLACED WITH A NEW CONTSDR JIKA2018041260001Engine · making metalAFTER DEPARTING, THE PILOT NOTICE DURING CLIMB THROUGH 9000 TO 10500 FEET THAT THE MANIFOLD PRESSURE ON THE LEFT ENGINE WAS SLOWLY DROPPING. AS THE PILOT ATTEMPT TO TROUBLESHOOT THE ISSUES BY ADJUSTING THE MIXTURE, HE NOTICES THE LEFT ENGINE OIL PRESSURE DROSDR 2017FA0000602Alternator · failedPILOT DISCOVERED ALTERNATOR HAD FAILED DURING FLIGHT. THE BATTERY WAS QUICKLY DEPLETED AND PILOT MANUALLY EXTENDED GEAR. THE RIGHT MAIN SLOWLY RETRACTED ON LANDING ROLLOUT.SDR 2017FA0000412Oil Cooler · vapor lockAFTER FACTORY REMANUFACTURED, INSTALLED THE ENGINE, FOUND THE TURBO LEAKING FROM CENTER SECTION DURING IDLE, BUT NOT ABOVE 1000 RPM. TROUBLESHOT OIL LEAK AND DETERMINED OIL COOLER VAPOR LOCK CAUSING TURBO LEAK. BLEEDING AIR FROM COOLER DID STOP THE OIL LEAK,SDR E4FR2015FA0000621Attach Bracket · corrodedDURING AN ANNUAL INSPECTION THE HORIZONTAL COUNTERBALANCE TUBE ATTACH BRACKET, FOUND TO BE SEVERLY CORRODED AND WORN. THE FLIGHT CONTROL WAS REMOVED FOR MAINTENANCE AND PAINTING. THE COROSSION AND WEAR WAS COVERED UP BY THE INSTALLATION OF THE WASHERS ON EACSDR 2015FA0000342Hub · crackedACFT BROUGHT IN FOR AN ON WING INSPECTION UNDER AD 2009-22-03. INDICATION NOTED BY EDDY CURRENT INSPECTION. PROPELLER HUB REJECTED. THE PROPELLER HAS HAD MANY PREVIOUS 100 HR INSPECTIONS.SDR 2014FA0000599Air Filter · defectiveDURING A VFR STAGE CHECKOUT. AFTER A NORMAL START UP, PILOT EXECUTED A MAX PERFORMANCE TAKEOFF FROM THE DEPARTURE. NO ISSUES, AND ACFT BEHAVED NORMALLY. PILOT EXECUTED A NORMAL APPROACH. INSTRUCTOR TOOK CONTROLS. GAUGES WERE NORMAL AFTER PEDAL TURN. A NSDR 2013FA0000137Distributor Gear · brokenDURING INSPECTION, DISCOVERED MAGNETO DISTRIBUTOR GEAR , MISSING TEETH ON BOTH GEARS.SDR 2012FA0000715Air Box · damagedDURING FLIGHT, POWER LOSS FROM ENGINE. SUCCESSFUL OFF FIELD LANDING WAS MADE. INSPECTION REVEALED A BAFFLE INSIDE THE CARBURETOR AIR BOX, CAME LOOSE STARTVING THE CARB OF AIR CAUSING ENGINE TO LOOSE POWER.SDR 2012FA0000471Points · looseFOUND MAGNETO CONTACT POINTS LOOSE WHEN POINTS ARE OPEN.SDR 2011FA0000697Carburetor · misoverhauledUPON INSPECTION OF THE CARBURETOR, FOUND THAT THREAD SEALANT HAD BEEN APPLIED TO THE FILTER SCREEN ASSY AS WELL AS THE DRAIN PLUG.SDR 2011FA0000696Carburetor · misoverhauledUPON INSPECTION, CARBURETOR THE THREAD SEALANT HAD BEEN APPLIED TO THE DRAIN PLUG AS WELL AS THE FUEL FITTINGS.SDR 2011FA0000494Baffle · looseCONE SHAPED BAFFLE IN MUFFLER CAME LOOSE AND COMPLETELY BLOCKED EXHAUST STACK.SDR 2010FA0001249Spring · brokenTRACING AN ENGINE OIL LEAK, IT WAS DISCOVERED THAT THE PUSHROD SHROUD TUBE RETAINING SPRINGS (SL14995)HAD FAILED ON ALL 6 CYLINDERS. THE PART FAILED BY BREAKING INTO 2 OR MORE FRAGMENTS; THIS ALLOWED THE SHROUD TO UNSEAT FROM THE HEAD AND LEAK OIL. ALL 6 SPRINSDR 2010FA0001131Antenna · failedTHE GNS 430W INDICATED NO SATELLITE COVERAGE WHILE IN FLIGHT. AN ADDITIONAL PORTABLE GPS ALSO INDICATED A LOSS OF SATELLITE COVERAGE. ATC INDICATED THAT THERE WERE NO OTHER REPORTS OF GPS PROBLEMS. LANDED AND TURNED OFF ALL OTHER ELECTRICAL DEVICES EXCEPT FOSDR 2010FA0001090Impulse Coupling · brokenPILOT REPORTED LT MAGNETO FAULTY DURING RUN-UP. INVESTIAGTION REVEALED HOLE IN MAGNETO ADAPTER PLATE, WITH ALUMINUM SHAVINGS IN ENGINE COMPARTMENT. REMOVED ENGINE FROM ACFT, AND REMOVED SUMP AND ACCESSORY CASE. FUND DAMAGED LT MAGNETO DRIVE GEAR, LT CRANKSSDR 2010FA0000790Oil Cooler · leakingTHE FIRST UNIT THAT FAILED WAS AN O/H COOLER, PN 8000074, SN 1041411 MFG. 04/05, INSTALLED 12/01/09 AND FAILED ON 3/19/10. THE REPLACEMENT COOLER WAS NEW WITH SAME PN 8000074 AND SN 1041905 , MFG. 10/09, INSTALLED ON 3/25/10. THE FIRST WAS INSTALLED ON A FACTSDR 2010FA0000526Oil Cooler · failedNEW OIL COOLER INSTALLED FAILED WITH ONLY A TOTAL OF 29 CUMMLATIVE HOURS AT THE BRAZE WELD OF THE CASING.SDR 2009FA0000759Beam · crackedWHILE PERFORMING FLUORESCENT DYE PENETRANT INSP IAW AD 2002-25-03 OF CAPTAINS RUDDER PEDAL BEAMS FOUND CRACKED ON (LT) INNER SIDE FWD BEAM. (K)SDR CA080709008Exhaust Valve · seized(CAN) DURING A FLIGHT IN THE R44 HELICOPTER, THE PILOT NOTICED A SIGNIFICANT VIBRATION APPROX. 2 HOURS INTO THE FLIGHT. THE VIBRATION LASTED 45 SECONDS. THERE WERE NO AUDIBLE ALARMS & ALL GAUGES READ NORMAL. THE A/C WAS DESCENDING WITHOUT CONTOL INPUTS,AFTER SDR 2008FA0000235Screw · improper partMFG SB NR SEB07-3 TO CHECK THE LENGTH OF THE SCREWS IN ACCESS PLATE UNDER REAR SEAT. THE PLATE MAY HAVE HAD TOO LONG A SCREW INSTALLED WHICH COULD CAUSE A FAILURE OF THE LANDING GEAR TO OPERATE DOWN. THE SB LISTED THE PROPER SCREWS TO USE IN EACH HOLE IN THESDR 2007FA0000982Bearing · brokenRT OB HEIM BEARING BROKE AT THREADS NEXT TO JAM NUT ON ACTUATOR ROD DURING TAKEOFF ROLL W/RESULTANT GEAR COLLAPSE. INCREASE SIZE AND STRENGTH OF PART. (K)SDR 2007FA0000583Starter · defectiveREMOVED THIS STARTER FROM SAME AIRCRAFT FOR THE 4TH TIME WITH 11.3 HOURS SINCE OVERHAUL. STARTER BENDIX WOULD NOT ENGAGE ANYMORE DURING STARTUP. NO PROBLEM COULD BE FOUND WITH AIRCRAFT ELECTRICAL SYSTEM. INSTALLED ON ANOTHER AIRCRAFT TO VERIFY PROBLEM AND FSDR 2007FA0000581Starter · malfunctionedREMOVED THIS STARTER FROM SAME AIRCRAFT FOR THE 3RD TIME WITH 62.3 HRS SINCE OVERHAUL. STARTER BENDIX WOULD NOT ENGAGE ANYMORE DURING START UP. NO PROBLEM COULD BE FOUND WITH AIRCRAFT ELECTRICAL SYSTEM. (K)SDR 2007FA0000383Horn · crackedFOUND STABILATOR HORN P/N 20397-00 SEVERELY CRACKED FROM THE INSIDE WHERE THE ATTACH BOLTS CONNECT THE BALANCE WEIGHT TUBE P/N 20398-02 AND STABILATOR TORQUE TUBE ASSEMBLY P/N 20203-03.SDR 2007FA0000582Starter · failedREMOVED THIS STARTER WITH 3.3 HOURS SINCE OVERHAUL. STARTER BENDIX STAYED ENGAGED DURING START UP. NO PROBLEM COULD BE FOUND WITH AIRCRAFT ELECTRICAL SYSTEM. (K)SDR 2007FA0000580Starter · failedREMOVED THIS STARTER FROM AIRCRAFT DUE TO BENDIX FAILURE. TIME ON THIS STARTER IS UNKNOWN. (K)SDR 2007FA0000096Conduit · separatedTHE LT MAIN LANDING GEAR PUSH PULL CONDUIT SEPARATED AT THE BALL END WHERE IT IS ATTACHED TO THE SUPPORT STRUCTURE IN THE WHEEL WELL. BELIEVE THIS FAILURE OCCURRED AT THE PREVIOUS LANDING GEAR RETRACTION. (K)SDR 2007FA0000055Hydraulic Line · failedHYDRAULIC HOSE ON RETRACT SIDE OF NOSE GEAR ACTUATOR FAILED AS AIRCRAT WAS ON APPROACH AND GEARDOWN WAS SELECTED. RESULTED IN AIRCRAFT MAKING AN EMERGENCY GEARUP LANDING. AFTER AC WAS RECOVERED, INSPECTION OF HYDRAULIC SYSTEM REVEALED; TEFLON HYDRAULIC HOSE SDR 2006FA0001171Boot · leakingFLUID LEAKING FROM MAIN ROTOR BLADE PITCH BEARING HOUSING.SDR 2006FA0001172Boot · leakingFLUID LEAKING FROM MAIN ROTOR BLADE PITCH BEARING HOUSING.SDR 2006FA0001056Pin · brokenLOCKDOWN PINS BROKE AT GROOVE FOR ROLL PINS. THIS ALLOWED THE PINS TO MOVE OUT OF ACTUATOR BEARING END AND JAM THE ACTUATOR. IN THE UNLOCKED POSITION, SEB95-20 ACTUATOR DOWNLOCK PIN. INSPECTION SAYS TO CHECK FOR LOOSE PINS. THESE PINS WERE NOT LOOSE IN THESDR 608062Clamp · crackedBLADE CLAMPS CRACKED.SDR 608063Clamp · crackedBLADE CLAMP CRACKED.SDR 2006FA0000627Washer · crackedCOUNTER WEIGHT RETAINING WASHER P/N 71907 CRACKED AND BROKE. THIS ALLOWED THE COUNTER WEIGHT RETAINING PIN TO FALL OUT. ENGINE SEIZED.SDR 2006FA0000459Attach Fitting · out of limitsATTACHMENT CONNECTIONS AT RT AND LT SIDES ARE BELOW MINIMUM SPECIFIED IN AD. INSPECTION METHOD- ULTRASONIC. (K)SDR IBI2006F00000Alternator · failedALTERNATOR FAILED AT 18.51 HOURS SINCE OVERHAUL. WITH FAILURE, AMMETER WAS STUCK AT 35 AMPS INDICATED. VOLTAGE REGULATOR WAS ALSO DISABLED FROM ALTERNATOR FAILURE. INSPECTION OF ALTERNATOR REVEALED AN ASSY TYPE SCREW LODGED IN BETWEEN STATOR AND HOUSING SHOSDR 2006FA0000184Selector · inoperativeRT FUEL PRESSURE WOULD OCCASIONALLY DROP OFF TO BOTTOM OF GREEN RANGE AFTER AIRCRAFT IN CRUISE CONFIGURATION, (ELECTRIC PUMPS OFF) AFTER EXTENDED TROUBLESHOOTING IT WAS FOUND THAT THE RT FUEL COCK HAS VACUUM LEAK AT THE SHAFT AT HIGHER MANIFOLD PRESSURE 23-24 SDR BG001Line · failedDOWN HYDRAULIC PRESSURE LINE FAILED AT ACTUATOR. LINE PULLED OUT OF SWAGED END FITTING.SDR 2005FA0001317Bladder · collapsedFOUND AC TO HAVE DAMAGE TO L G BUNGEE, LT BOOM OB ATTACH POINT AT AFT WING CLOSEOUT. NO FUEL IN TANK, VERIFIED BY REMOVAL OF FUEL LINE AT FUEL VALVE ON BOTTOM OF TANK. FILLED TANK TO OVERFLOW CONDITION. WAS ONLY ABLE TO GET 23.2 OF 38 GALLONS INTO TANK. FUSDR 2005FA0000754Gascolator · contaminatedDURING AN ACCIDENT INVESTIGATION FUEL GASCOLATOR WAS FOUND WITH LARGE AMOUNTS OF WATER AND SOLID CONTAMINANTS. IT WAS NOTED THAT THE PART COULD NOT BE ROTATED TO ENSURE DRAINAGE OF CONTAMINANTS WHEN AC IS ON THE GROUND DUE TO COWL SUPPORT STRUTS INTERFERENCE.SDR 2005FA0001578Tube · corrodedANNUAL INSPECTION DISCOVERED WIDESPREAD CORROSION OF 4130 STEEL FUSELAGE STRUCTURE. LOWER DOOR POST TUBES WERE CORRODED NEARLY THROUGH, RENDERING AIRPLANE UNAIRWORTHY. SIGNIFICANT PORTIONS OF APPARENT ORIGINAL YELLOW FIBERGLASS INSTALLATION WERE WET. AIRCRAFSDR 2005FA0000132Support · damagedWHILE COMPLETING GROUND RUN, PRIOR TO 100 HOUR INSPECTION, NOTICED RUDDER PEDALS DID NOT FEEL RIGHT. FURTHER INVESTIGATION REVEALED THAT THE NUT-PLATES HAD RIPPED THROUGH THE RUDDER PEDAL SUPPORT PIECES. (K)SDR R7S2005F00000Nut · wornDURING A 100 HOUR INSPECTION, THE ROD END BEARING JAM NUT ON CONTROL TUBE (C336-1) AT THE CARBURETOR ATTACHMENT ARM WAS FOUND TO BE ONLY HAND TIGHT. THE ORIGINAL SAFETY WIRE INSTALLED BY THE FACTORY WAS STILL IN PLACE, BUT THE ROD END BEARING WAS ALLOWED TO MSDR UIA9317Tube · deformedNO.2 BLEED HOT CAUTION LIGHT ON (IN FLIGHT),AFTER LANDING IAW AMM21-11-00 AND AMM 49-10-00 CHECK FOUND ENG BLEED HEATSHIELD DEFORM.REPLACED HEATSHIELD PIPE AND ENG RUN-UP CHECK CONDCTION BACK NORMAL.SDR 2005FA0000759Actuator · obstructedAC NOSE DAMAGE DUE TO FAILURE OF NOSE GEAR TO EXTEND FOR LANDING. PROP LINKAGE RUNS DOWN OUTSIDE NLG TUNNEL, IS ATTACHED TO IT IN 2 PLACES WITH ADEL CLAMPS, STANDOFFS, AND AN3 BOLTS. AFT ATTACH HOLE IS DIRECTLY IN LINE WITH NOSE DOOR ACT ARM, WHICH IS HOLLOW
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