Lycoming TIO-540 series
Service difficulty reports · 340
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 = 'TIO540' 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 = 'TIO540' 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 2025FA0000370Actuator · brokenWHILE CHECKING ELEVATOR TRIM CABLE TENSIONS, FOUND TENSIONS LOW. AFTER SETTING CORRECT TENSIONS, FOUND ELEVATOR TRIM TAB ACTUATOR SHAFT BROKEN AT CHAIN SPROCKETS.SDR 2024FA0000200Magneto · wornTHE RT ENGINE WOULD NOT START OR EVEN FIRE. A STARTER VIBRATOR SYSTEM IS USED AND WAS FOUND TO BE FUNCTIONAL THROUGH TROUBLESHOOTING. THE LT MAGNETO WAS REMOVED, DISASSEMBLED. INSPECTION FOUND THAT THE PLASTIC COM LOBE HAD SIGNIFICANT WEAR CAUSED BY PRIMARY BRSDR 2020FA0000098Torque Link · separatedDURING INITIAL TAKEOFF ROLL OF THE DAY, THE UPPER NOSE GEAR TORQUE LINK SEPARATED FROM THE LOWER TORQUE LINK, ALLOWING THE NOSE WHEEL TO TURN SIDEWAYS. THE RESULTANT INDUCED STRESS RESULTED IN THE SEPARATION OF THE NOSE WHEEL FORK AND STRUT TUBE, AND THE SEPASDR EPUA201908087001Probe · false indicationLEFT ENGINE CHT RED LINE IN CRUISE FLIGHT. REMOVED AND REPLACED LH ENGINE CHT PROBE IAW PA31 MM 77-20-03. OPS CHECK GOOD.SDR 2020FA0000105Camshaft · galledCAMSHAFT LOBES 1 AND 2 GALLING AND ERODED. REDUCED LOBE LIFT OF VALVES RESULTED IN LOSS OF PERFORMANCE.
SDR 2020FA0000115Turbocharger · failedTURBOCHARGER FAILURE DUE TO MAIN BEARING FAILURE. TURBOCHARGER LOCKED UP (FROZE) AND BLOCKED AIR TO THE INDUCTION SYSTEM. PIC DID NOT EXECUTE PROCEDURES IN THE POH (MANUAL SELECTION OF ALTERNATE AIR SOURCE) RESULTING IN OFF AIRPORT LANDING AND INCIDENT REPORSDR PAIR2018081074523Exhaust Pipe · separatedENGINE EXHAUST CROSSOVER PIPING PARTIALLY SEPARATED CAUSING LOSS OF TURBOCHARGER BOOST, DAMAGING WIRING AND AIR CONDITIONER HOSES AT THE REAR OF THE ENGINE. ALSO DAMAGED COWLING SEALS AND PAINT, CAUSED HEAT DAMAGE TO THE ENGINE OIL FILTER AND THE BAGGAGE COMPASDR ZJW201802270001Stud · brokenLEFT ENGINE FEATHERED DUE TO LOW OIL PRESSURE. NUMBER 2 CYLINDER STUDS BROKEN.SDR 2017FA0000171Exhaust Pipe · brokenCLIMBING THROUGH 13,000 MSL THE PILOT REPORTED A LOSS IN MANIFOLD PRESSURE ON THE LT ENGINE. RETURNED TO THE AIRPORT FOR A NORMAL LANDING. DURING INSPECTION, FOUND HEAT AND EXHAUST STAINING ON THE LOWER COWL. AFTER REMOVING THE COWLING, FOUND APPROXIMATELY 4SDR EPUA20170421001Drive Shaft · shearedENGINE RPM DROPPED FROM 2200 TO 1900 DURING CRUISE. UNABLE TO CONTROL RPM ON LEFT ENGINE AFTER RPM DROP. PROP FEATHERED ON GROUND WHEN SHUTTING DOWN ENGINE. MAINTENANCE DISCOVERED THE NUMBER ONE ENGINE PROP GOVERNOR HAD SHEARED THE DRIVE SHAFT FOR THE PROP SDR VNFR2015102700507Drain · cokedPILOT REPORTED LOW OIL PRESSURE DURING FLIGHT. DECLARED EMERGENCY LANDING. UPON INSPECTION EXCESSIVE COKING WAS FOUND AT TURBOCHARGER DRAIN CAN. THIS PREVENTED SCAVENGE PUMP FROM RETURNING OIL TO ENGINE RESULTING IN EXCESSIVE OIL LOASS PART THE TURBO SEALS.SDR 2015FA0000277Fitting · fracturedUPON LANDING ROLLOUT, STUDENT PILOT REPORTED DIFFICULTY WITH NOSE WHEEL STEERING. AFTER TURNING OFF RUNWAY USING DIFFERENTIAL BRAKING, THE INSTRUCTOR PRESSED ON RUDDER PEDALS TO TEST STEERING. AT THIS TIME THE NOSE GEAR COLLAPSED FOLDING FORWARD AND PROPELLESDR JIKA2015010802Seal · leakingDURING CLIMB OUT, THE PILOT REPORTED A LOSS IN MANIFOLD PRESSURE ON THE LT ENGINE. VISUALLY THE PILOT SAW SMOKE COMING FROM THE LT ENGINE. THE PILOT SHUTDOWN THE LT ENGINE, RETURNED & LANDED WITHOUT INCIDENT. THE LT ENGINE TURBO CHARGER OIL SEAL FAILED CAUSSDR CA141202033Drag Link · cracked(CAN) DURING A 100 HR INSPECTION THE DRAG LINK FITTING SUPPORT TUBE ASSY WAS FOUND CRACKED AT THE AFT LOWER ATTACH BOLT HOLE.SDR 2014FA0000659Fuel Line · brokenDURING CRUISE FLIGHT, RT ENGINE NR 6 CYLINDER EGT AND CHT DROPPED TO ZERO DEGREES AT THE SAME TIME AN ENGINE VIBRATION STARTED. RT ENGINE WAS THEN SHUTDOWN AS A PRECAUTIONARY MEASURE. LANDED AT AIRPORT WITHOUT INCIDENT. INSPECTED RT ENGINE AND FOUND NR 6 CYSDR VDKG2014FA0000426Oil Filter · mismanufacturedINSTALLED NEW OIL FILTER AND FOUND THE OIL FILTER WAS FAULTY AND CAUSED THE ENGINE TO PUMP ALL OF THE OIL OUT OF THE ENGINE. OIL FILTER MOUNTING STUD WAS ONLY THREADED TO A LENGTH OF APPROXIMATELY .2500.SDR CA140224025Blade · misrepaired(CAN) PROPELLER BLADES DEEM UNSERVICEABLE BY FACTORY DUE TO IMPROPER/UNAPPROVED SHOTPEENING BY LAST REPAIR SHOP.SDR 2013FA0000460Seat Track · wornDURING LANDING, SEAT SUDDENLY SLID TO ITS FULL AFT POSITION, WAS NOT ABLE TO REACH CONTROLS. LT WING TIP DAMAGED ON THE UNDERSIDE FROM SCRAPING RUNWAY.SDR 2013FA0000213Cotter Pin · failedLOST CONTROL FOR ENGINE POWER SETTINGS, DUE TO SEPARATION OF ENGINE CONTROL ROD END SEPARATING FROM POWER LEVER. CAUSE OF SEPARATION DUE TO FAILED COTTER PIN THAT RETAINS CLEVIS PIN THAT RETAINS CONNECTION OF CABLE END AND POWER LEVER. NTSB REPORT DISCLOSED CSDR 2012FA0000675Bulkhead · crackedON REMOVEL OF THE VERTICAL STABILIZER AND REINFORCEMENT PLATE FROM THE AFT FUSELAGE BULKHEAD AT FS 317.75, A CRACK APPROXIMATELY .75 INCHES IN LENGTH WAS LOCATED IN THE BEND RADIUS OF THIS BULKHEAD JUST ABOVE AND TO THE RIGHT OF THE UPPER LEFT VERTICAL STABILSDR 2012FA0000673Bulkhead · crackedTHE LT WING FORWARD BULKHEAD ASSY FOUND WITH CRACKS IN THE LOWER SECTIONS, EMULATING IN THE BEND RADIUS AND TABS USED FOR ATTACHMENT TO THE ACFT FLOOR STRUCTURE. THIS BULKHEAD HAS CRACKS ON THE FORWARD AND AFT SECTIONS OF THE ASSY. THIS AREA DUFFICULT TO INSSDR 2012FA0000635Bulkhead · crackedFOUND THE LT WING FORWARD SPAR ATTACHMENT BULKHEAD ASSY, AND THE RIGHT ASSY, HAVE CRACKS IN THE LOWER SECTIONS OF THESE PARTS.SDR 2012FA0000637Access Panel · corrodedDURING AN ANNUAL INSPECTION, FOUND THAT THE ACCESS PANELS THAT COVER THE ACFT FUEL BOWLS, FUEL SELECTOR VALVES, AND ELECTRIC FUEL BOOST PUMPS HAVE CHAFED INTO THE WING SPAR REINFORCEMENT PLATES AND CAUSED FRETTING CORROSION. HAD A LEVEL 3 NDT TECH PERFORM A SDR 2013FA0000110Battery · failedSEALED BATTERY DOES NOT HOLD A CHARGE. CONFIRMED BATTERY FAILED CAPACITANCE TEST AT LESS THAN 10 PERCENT. SENT BATTERY TO MFG FOR EVALUATION, WAS TOLD THAT THE BATERY WAS FOUND TO BE DRY AT DISTRIBUTION.SDR 2012FA0000388Bulkhead · crackedDURING THE ACFT ANNUAL INSPECTION, FOUND FATIGUE CRACKS IN THE AFT FUSELAGE BULKHEAD AT STATION 332. THIS BULKHEAD IS ALSO THE WHERE THE MAIN SPARS OF HORIZONTAL STABILIZERS ATTACH. THIS IS THE SECOND HIGH TIME ACFT WE HAVE FOUND WITH THESE FATIGUE CRACKS ATSDR 2012FA0000443Wedge · loosePILOT REPORTED ROUGH MAGNETO CHECK. REMOVED RT MAGNETO AND FOUND COIL WEDGE LOOSE IN MAGNETO. SEVERAL TEETH WERE BROKEN ON DISTRIBUTOR GEAR. MAGNETO HAD ONLY 23 HRS SINCE OVERHAUL.SDR 2012FA0000424Mount · crackedON ANNUAL INSP, FOUND LT AND RT ENGINE TURBO MOUNTS CRACKED AT THE UPPER TURBO ATTACH POINT. PARTS WERE SENT BACK FOR REPAIR AND REINSTALLATION.SDR JIKA2012050101Magneto · failedPILOT REPORTED THAT "RIGHT ENGINE RUNNING ROUGH ON CLIMBOUT AT 4000 FT LOSS OF 200 RPM. RIGHT ENGINE FAILED MAGNETO CHECK AFTER LANDING. MAINTENANCE FOUND RIGHT ENGINE LEFT MAGNETO INTERNALLY FAILED, AND REPLACED THE MAGNETO.SDR EPUA20120308001Distributor Blk · damagedRT ENGINE RUNNING ROUGH OUTBOUND, MX FORUND THAT NR 2 ENGINE RT MAGNETO WENT TO CROSSFIRING. ENGINE WOULD NOT RUN WITH THIS MAG IN THE ON POSITION, DISTIBUTOR BLOCK COMING APART. REPLACING MAGNETO.SDR C41R201112290108Transducer · contaminatedPILOT REPORTED NO FUEL PRESSURE INDICATION ON DISPLAY. FOUND FUEL PRESSURE TRANSDUCER MOUNTED UNDER LT MAGNETO WITH WIRING FACING UP. INSPECTION REVEALED UNIT TO BE OIL-SOAKED DUE TO PRIOR MAGNETO REPLACEMENT. SUSPECT OIL MIGRATED INTO WIRING AND SHORTING OUTSDR KY7A2011121600011Exhaust Duct · crackedE2 DEGRADED FROM FULL POWER MP AT 25", AND FUEL FLOW IN BOUND WITH NO FREIGHT. AFTER DEPARTURE, NR 2 ENGINE WOULD ONLY PRODUCE 25" OF MP. FUEL FLOW WAS LOW. ADJUSTED MIXTURE, SWITCHED TANKS, TURNED THE EMERGENCY PUMP ON AND OFF TO TROUBLESHOOT. CAME TO THE SDR 2011FA0000580Powerpack · failedLANDING GEAR HYD POWER PACK FAILED ON FIRST FLIGHT AFTER INSTALLATION. POWER PACK WAS O/H REF WO 3505.SDR 3SVAN357SA4142011Wastegate Valve · stuckPILOT REPORTED LOSS OF TURBOCHARGER BOOST AND LOSS OF L/H EMERGENCY BOOST PUMP PRESSURE DURING CRUISE. ALSO REPORTED ENGINE BOOST AND FUEL PUMP OPERATIONS RETURNED TO NORMAL AFTER 5 MINUTES. INSPECTION AND GROND RUN OF AIRCRAFT NORMAL. SUSPECT WASTEGATE MIGHTSDR CEPA20110413001Oil Cooler · leakingWHILE IN CRUISE FLIGHT, PILOT NOTICED SMOKE AND OIL COMING FROM THE TOP COWL LOUVERS OF THE RIGHT ENGINE NACELLE. HE REDUCED POWER, FEATHERED THE RIGHT PROP, AND SHUT THE ENGINE DOWN. THE PILOT LANDED AT SCHEDULED DESTINATION UNEVENTFULLY. MAINTENANCE PERSOSDR 2011F00021Actuator · corrodedDURING SCHEDULED INSP OF ACFT, DETECTED WHAT APPEARED TO BE SLIGHT TO MODERATE SURFACE CORROSION ON STABILATOR TRIM ACTUATOR ARM ASSY. PROCEEDED TO REMOVE ASSY FOR FURTHER INVESTIGATION AND DURING REMOVAL DISCOVERED LT SIDE OF PLATE THAT ATTACHES TO STABILATOSDR 2011FA0000066Tube · crackedHEATER FAILED PRESSURE DECAY TEST. CRACK IN BURNER TUBE, POSSIBLY CAUSED FROM TOO HIGH FUEL PRESSURE.SDR BSYA2011004Buss · inoperativeGOING INTO AIRPORT, ACFT HAD A TOTAL AVIONICS FAILURE. MX FOUND BOTTOM CIRCUIT BREAKER BUSS INOP. FOUND LOOSE SCREW FEEDING BUSS, TIGHTENED SCREW, OPS CHECKS GOOD.SDR CA110125003Engine · fluctuatesIFSD CREW REPORTS STATE THAT DURING CLIMB, PASSING 11000 FT AT HIGH POWER, WHILE MONITORING TORQUE AND OIL PRESSURE FLUCTUATIONS THE ENGINE LOST OIL PRESSURE, WHICH COINCIDED WITH A LOUD NOISE AND AUTOFEATHER.SDR IRJ2011F00000Socket · unsecurePILOT REPORTED RT PROP CONTROL INOPERATIVE. INSP REVEALED THAT THE BALL, PN 54175-00, CAME OUT OF THE SOCKET, PN 31747-00, ON THE RT PROP CONTROL END AT THE GOVERNOR. INSPECTED AND REPAIRED CONNECTION AT THE RT PROP GOV.SDR 2010FA0001214Connector · burned(QV0R) INSPECTED ACFT IAW SB NR 1004. FOUND HEATER WIRE BADLY BURNED AT MOLEX CONNECTOR E303 AS DESCRIBED IN THE "PURPOSE:" SECTION OF THE SB, HOWEVER WIRE WAS BLACKED FOR .7500" ON THE MALE CONNECTOR PIN AND DISCOLORED FOR A FURTHER .7500". A SMALL SECTION OSDR 2011FA0000055Bolt · brokenTHE BOLT ATTACHING THE LT MAIN GEAR UPPER DRAG LINK TO THE LOWER LINK ASSY BROKE AND THE LT MAIN GEAR STRUT ASSY FOLDED BACKWARDS IN THE LWR NACELLE STRUCTURE. THIS INCIDENT HAPPENED AFTER LANDING, DURING A ROLL-OUT AND TURN IN OFF RUNWAY.SDR 2010FA0001223Tire · failedDURING LANDING ROLL THE PILOT EXPERIENCED AN ABNORMAL DRAG TO THE LT, OBSERVED THE LT MAIN TIRE HAD GONE FLAT AND CAME TO A STOP ON THE RUNWAY. THE ACFT WAS THEN TOWED TO THE HANGAR AND THE INSP PROCESS BEGAN. UPON INSP, IT WAS DISCOVERED THAT THE RUBBER USESDR 2010FA0001136Power Supply · dislodgedDURING LANDING, OPERATOR COULD NOT REDUCE POWER OF THE ACFT. THE ACFT LANDED WITHOUT INCIDENT. INVESTIGATION REVEALED THAT THE ACFT HAD BEEN MODIFIED IAW STC SA02279AT WITH AN AFTER MARKET HIGH INTENSITY LANDING LIGHT. THE POWER SUPPLY FOR THE LANDING LIGHTSDR 2010FA0000933Spar · crackedRUDDER SPAR CRACKED AT UPPER HINGE FITTING.SDR 2010FA0000934Spar · crackedRUDDER SPAR CRACKED AT UPPER HINGE FITTING.SDR 2010FA0000839O-Ring · brokenPILOT REPORTED LOSS OF CONTROL OF PROPELLER CAUSING MOMENTARY OVERSPEED WHICH FORCED THE PILOT TO USE THE THROTTLE TO GAIN CONTROL. DISASSEMBLY OF PROPELLER REVEALED INTERNAL OIL LEAK CAUSING A HYD LOCK WITH THE BLADES AT FINE PITCH. FURTHER INVESTIGATION OF SDR 2010FA0000809Fitting · corrodedOWNER STATED HE WAS CRUISING AT ALTITUDE, TAKING ON ICE, ACTIVATED THE DE-ICE BOOT FUNCTION AND THE ICE WAS NOT REMOVED FROM THE ACFT. AFTER MULTIPLE TRIES HE WAS FORCED TO MAKE A EMERGENCY DECENT TO MAINTAIN AIRSPEED AND TO REMOVE THE ICE IN WARMER TEMPS. THSDR 2010FA0000476Mount · brokenPILOT REPORTED STARTER MAKING A GRINDING NOISE. TROUBLESHOOTING REVEALED THE STARTER DRIVE GEAR NOT FULLY MESHING IN RING GEAR. FURTHER INVESTIGATION REVEALED MOVEMENT OF START DRIVE CASE WHILE MOVING PROP WITH DRIVE ENGAGED. CRACK WAS FOUND ON FWD LT CORNESDR 2010FA0000241Tube · defectiveNOSE TIRE WENT FLAT DURING TAXI FOR TAKEOFF. FOUND HOLE IN SIDEWALL OF TUBE. HAVE SEEN THIS DEFECT MANY TIMES IN NOSE AND MAIN TIRE TUBES IN THE LAST 12 MONTHS.SDR ZB0R20100001Case · crackedOPERATOR REQUESTED TROUBLESHOOTING OF LOW OIL PRESSURE ON RT ENGINE. UPON REMOVAL OF RT ENG COWL, MECHANIC DISCOVERED OIL FILM ON LT SIDE OF ENG CASE. FURTHER INSP REVEALED WHAT APPEARED TO BE A CRACK ON THE LT CASE HALF. PAINT WAS REMOVED AND DYE PENETRANT AP
Back to Lycoming TIO-540 series