Lycoming IO-540-C4B5
Service difficulty reports · 182
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 = 'IO540C4B5' 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 = 'IO540C4B5' 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 20000713SH024Plug · failedPISTON PIN PLUG FAILED AND FILLED THE ENGINE WITH ALUMINUM. THESE ARE THE SEPARATE PUSH IN LARGE DIAMETER PLUGS. INSTALLATION DATE: 7/98. (X)SDR 20000615SH009Plug · deterioratedFOUND IN BOTH ENGINES DURING ANNUAL WHILE PERFORMING LYC 400-HOUR ROCKER ARM INSP, SEVERAL OF THE ROCKER SHAFT THRUST BUTTONS WERE FOUND DETERIORATING. A COUPLE OF THEM WERE FOUND BROKEN OFF AND OUT OF THE ROCKER SHAFT. THE OIL SCREEN WAS FOUND TO CONTAIN SOSDR 20000613SH023Flyweight · crackedRELEVANT CRACK INDICATION AT BASE OF FLYWEIGHT. (X)SDR AU000490Gear · collapsed(AUS) NOSE LANDING GEAR COLLAPSED ON LANDING.SDR CA000511027Pitot Tube · burned out(CAN) WHEN PITOT HEAT WAS SELECTED, CIRCUIT BREAKER TRIPPED. UPON INVESTIGATION, FOUND HEATER ELEMENT GROUNDING OUT TO PITOT HEAD HOUSING. SUBMITTER SUGGESTED CAUSE TO BE PREVIOUS USER TO SELECT HEAT WHILE ON GROUND BEYOND THE 3 MINUTE TIME LIMIT OR NORMAL SDR CA000505015Support Bracket · cracked(CAN) AT ANNUAL INSPECTION, A CRACK WAS FOUND ON THE RIGHT MAIN GEAR OUTBOARD TUBE ASSEMBLY OF THE DRAG LINK FITTING SUPPORT (ITEM 13 FIG. 25 OF IPC). THE CRACK IS LOCATED NEAR THE LOWER MOUNTING BOLT HOLE OF THE TUBE ASSEMBLY AND IS ABOUT 1 INCH LONG.SDR CA000218016Gear · stripped(CAN) DEAD MAG CHECK COMPLETED ON ARRIVAL, ENGINE FAILED WHEN LEFT MAG SELECTED ONLY. TEFLON MAG GEAR FOUND WITH THIRTEEN TEETH STRIPPED.SDR CA000218021Bearing · loose(CAN) DURING A DAILY INSPECTION, IT WAS FOUND THAT THE RIGHT ELEVATOR BEARING WAS LOOSE. THE BEARING WAS REPLACED.SDR CA000218022Control Cable · worn(CAN) DURING REPLACEMENT OF THE RT ELEVATOR BEARING, IT WAS DISCOVERED THAT THE TRIM CABLE WAS WORN. CABLE WAS REPLACED.SDR 2000ZZZX132Manifold · looseFOUND FUEL LINE FITTING ON FUEL INJECTOR LOSE CAUSING FUEL STARVATION TO FUEL MANIFOLD. TIGHTENED FITTING AND RETURNED TO SERVICE.SDR 2000ZZZX229Screw · looseMAGNETO CASE SCREW CAME LOOSE CAUSING MAGNETO TO COME APART IN-FLIGHT. UPON INSPECTION, FOUND BACK HALF OF MAG CASE LYING LOOSE HANGING FROM WIRES. SCREWS COULD NOT BE FOUND.SDR CA991231015Drive Shaft · sheared(CAN) WHILE IN FLIGHT PILOT NOTICED THE RED NOT SUCTION LIGHT ILLUMINATE. VACUUM PUMP ((P/N:(ARO21240-1) (PIPER32171-000)).SDR CA991231013O-Ring · cut(CAN) PILOT OBSERVED POOL OF HYDRAULIC FLUID RUNNING FROM LT ENGINE NACELLE. MAINTENANCE DISCOVERED LEAKS COMING FROM ROD END OF DOOR ACTUATOR. REPLACED CUT O-RINGS (P/N 484-701)(AN6227-7) (MS28775-012)).SDR CA991210017Bracket · broken(CAN) HEATER OVERHEAT SWITCH POPPED. INVESTIGATION FOUND PILOT HAD PULLED HEATER DOOR OPEN, BUT THE CABLE WAS STIFF AND THE CABLE BRACKET BROKEN. THE RESULT WAS THE HANDLE TOOK OUT THE PLAY GIVING THE IMPRESSION THE DOOR WAS OPEN. THE SUBMITTER REMARKED THASDR CA991210016Pitot Tube · frozen(CAN) THE PRE-TAKEOFF RUN UP AND TAKEOFF WAS DURING WET SLUSHY RUNWAY CONDITIONS DURING SNOW. AFTER CLIMB IN CRUISE, THE A.S.I. WAS LOST. THE PILOT HAD PUT PITOT HEAT ON AT TAKEOFF, NOT DURING RUN UPS AND TAXIING. AIRSPEED CAME ON DURING DESCENT TO SEPT-ISSDR CA991210015Collar · broken(CAN) DAMAGE CAUSED BY OVERSTEERING BY PILOT WHEN TOWING AIRCRAFT TO HANGAR WITH TRACTOR. REPLACED COLLARS (P/N 31811-000; P/N 1781-000) AND HARDWARE. LINKS (SCISSORS) INSPECTED AS WELL AS THE INTERCONNECTING STEERING MECHANISM.SDR CA991028057Air Filter · clogged(CAN) AIRCRAFT FLEW IN RAIN APPROXIMATELY 45 MINUTES, AND THEN CAME OUT IN THE CLEAR AT 7,000 FEET, AND -5 DEGREES CELSIUS. ENGINES FUEL FLOW DECREASED, ENGINES SLOWED DOWN. PILOT SELECTED ALTERNATE AIR ON AND RECOVERED POWER. RE-SELECTED ALTERNATE AIR OSDR CA990715043Power Pack · leaking(CAN) NOSE LANDING GEAR CREEPED CLOSED WHEN AIRCRAFT HANGARED OVERNIGHT. SMALL POOL OF HYDRAULIC FLUID ON FLOOR. PILOT REPORTED LANDING GEAR CREEPING DOWN AT TIMES. HAD TO BE RE-SELECTED AFTER SOME ACTUATORS HAD O-RINGS REPLACED. WING FLAPS COMING DOWN TOOSDR AU990379Switch · out of adjust(AUS) NOSE LANDING GEAR DOWNLOCK MICROSWITCH OUT OF ADJUSTMENT.SDR AU990323Bellcrank · corroded(AUS) FLAP BELLCRANK ASSEMBLY CONTAINED SEVERE EXFOLIATION CORROSION. OUND DURING INSPECTION IAW AD/PA23/50A.SDR CA990401016Antenna · broken(CAN) TECHNICIAN FOUND ELT ANTENNA COMPLETELY BROKEN OFF. IT WAS OK AT PILOT WALK-AROUND AT DEPARTURE. VOR ANTENNA APPEARED TO BE PARTLY SHEARED OFF. AIRCRAFT HAD RECENTLY FLOWN INTO ICING CONDITIONS. ALSO HAD PRE-FLIGHT DE-ICING.SDR CA990209020Stack · separated(CAN) BLACK SOOT NOTED ON RIGHT HAND OUTBOARD LANDING GEAR DOOR AND OUTBOARD COWL FLAP. EXHAUST STACK FOUND SEPARATED. NO OTHER LOOSE AREAS NOTED. SUBMITTER SUGGESTS THAT THE REAR STACK WAS TOO SHORT AND THE SPRING ACTION OF REAR SUPPORT CAUSED THE SEPARASDR CA990209025Thermocouple · misinstalled(CAN) AIRCRAFT WAS RECENTLY PURCHASED WITH HIGH TIME ENGINES. AFTER 102.3 HOURS OF OPERATION THERE HAVE BEEN MANY MISCELLANEOUS EGT PROBLEMS. INVESTIGATION FOUND THE EGT (THERMOCOUPLE) PROBES INSTALLED IN WHAT APPEARS TO BE RANDOM POSITIONS. PIPER WAS CONTACSDR CA990111057Retainer · corroded(CAN) CARRYING OUT AD 88-21-07R1 TO PREVENT WATER ENTERING FUEL FILLER, 2 RIVETS HOLDING THE RETAINING PLATE TO COVER WERE FOUND POPPED. AT REMOVAL , THE RUBBER GASKET P/N 31190-00, WAS FOUND ROTTEN.SDR CA981123019Rod · broken(CAN) DURING FLIGHT WHILE TRIMMING THE RUDDER, THE PILOT EXPERIENCED A HEAVY SHAKING OF THE AIRCRAFT. AIRCRAFT LANDED SAFELY. MAINTENANCE CHECK FOUND THE FORKED END OF THE AFT TRIM TAB ROD ASSEMBLY WAS BROKEN OFF.SDR CA981109043Bracket · cracked(CAN) PILOT SELECTED GEAR DOWN AND THE LEFT GEAR LIGHT DID NOT COME ON. MANY ATTEMPTS TRIED. MICROSWITCH BRACKET FOUND BROKEN. ALSO NOTED THAT BOLT P/N AN177-27 AT THE CENTER OF THE RETRACTION LINK WAS BROKEN.SDR CA981028011Spar · cracked(CAN) CRACKS FOUND IN LEFT AILERON INBOARD RIB P/N 17100-13, TO WHICH IS ATTACHEDTHE HINGE LEFT INBOARD P/N 17095-00 THROUGH THE SPAR. CRACKS LOCATED AT BOTTOM HOLE.SDR AU981331Cap · cracked(AUS) WING LOWER SPAR CAP CRACKED VERTICALLY THROUGH THE ANGLE TO THE SECOND OUTBOARD MOUNT BOLT HOLE. PART TC: 970.SDR CA981014015Wire · broken(CAN) PASSENGER NOTED DAYLIGHT ON TOP OF DOOR. A ONE-HALF TO THREE-QUARTER INCH GAP. PART NUMBER WIRE FOUND BROKEN INSIDE CASING. SB 338 COVERS SPECIAL MEASURES TO BE TAKEN IN ADJUSTING TOP REAR PIN TO PREVENT IT FROM BOTTOMING AND CAUSING BACK PRESSURE ON SDR CA981007008Exhaust Stack · broken(CAN) COWLING REMOVED FOR STARTER CHANGE. INSPECTION FOUND THE EXHAUST STACK ON NR 2 CYLINDER BROKEN. THE OUTBOARD STUD AND THE HELICOIL WERE PULLED FROM THE CYLINDER. NUMBERS ON CYLINDERS AND ACCESSORIES DO NOT MATCH LOG BOOK NUMBERS.SDR CA980922021Corrector · damaged(CAN) HSI NOT WORKING CORRECTLY. FOUND COMPASS CORRECTOR NOT CONNECTED AND THE NORTH-SOUTH ADJUSTING POLE DAMAGED.SDR CA980915009Push Rod · improper part(CAN) PILOT REPORTED THE ENGINE RUNNING ROUGH DURING TEST FLIGHT, AFTER CYLINDER CHANGE. POST-FLIGHT COMPRESSION TEST FOUND DIFFERENTIAL PRESSURE 0/80, WITH THE INTAKE VALVE OPEN. INSPECTION FOUND THE INTAKE PUSH ROD TO BE THE WRONG LENGTH, SHORTER PUSH ROD SDR CA980909027Extension · improper part(CAN) AFTER ENGINE INSTALLATION, AN OIL LEAK WAS FOUND ON RUN-UP. INVESTIGATION FOUND THE WRONG OIL FILLER EXTENSION INSTALLED, RESULTING IN THE ENGINE BEING OVER SERVICED WITH OIL, THIS LEAD TO THE OIL LEAK. THE PROPER PART (P/N 74313) WAS INSTALLED.SDR CA980908031Magneto · cracked(CAN) ENGINE RECEIVED ON TRANSPORT FROM OVERHAULER. PRE-INSTALLATION INSPECTION FOUND THE TOP AND BOTTOM MAGNETO LUGS CRACKED. IT APPEARS THE CARGO STRAPS WERE PASSED OVER THE MAGNETO WHEN THE ENGINE WAS SECURED FOR TRANSPORT. SUBMITTER STATED IMPROPER POSISDR CA980622023Pump · leaking(CAN) OIL LEAK UNDER ENGINE TRACED TO FUEL PUMP DRAIN. INSPECTION FOUND BOTTOM DIAPHRAGM OF THE THREE DRAIN CLUSTER, CUT AND LEAKING.SDR CA980622021Detector · failed(CAN) DURING 50 HOUR INSPECTION AME HEARD BEEP FROM UNDER INSTRUMENT PANEL. STALL WARNING ON/OFF WITH BEEP SOUND AND WHEN STALL DETECTOR ON WING MOVED POSITIVELY BY HAND. LIFT DETECTOR REPLACED.SDR CA980622022Cylinder · cracked(CAN) DURING INSPECTION A DIFFERENTIAL PRESSURE CHECK ON NR 2 CYLINDER WAS 32/80. REMOVAL AND DISASSEMBLY OF THE CYLINDER FOUND THE EXHAUST VALVE LEAKING, CORROSION AND EXHAUST LEAK IN THE AREA OF THE COOLING FINS.SDR CA980623022Air Valve · leaking(CAN) RIGHT HAND PROPELLER HARD TO CONTROL, ENGINE SHUTDOWN, AND AIRCRAFT RETURNED TO BASE. PRESSURE CHECK CARRIED OUT ON PROPELLER AND THERE WAS NO NITROGEN PRESSURE IN THE CYLINDER. IT IS SUSPECTED THE VALVE WAS LEAKING. THE VALVE WAS REPLACED, THE CYLINDSDR CA980615006Switch · malfunctioned(CAN) IN-FLIGHT AT NIGHT THE PILOT NOTICED SPARKS COMING FROM UNDER THE CENTER RT EDGE OF THE INSTRUMENT PANEL. WORK HAD BEEN DONE ON RADIOS. SOLDER CONNECTION ON THE 1,00O HMS RESISTOR CONNECTING THE L20N WIRE FROM THE LT AND RT LIGHT SWITCHES TO THE SOLID SDR 98ZZZX2111Camshaft · failedIN CRUISE FLIGHT, PILOT LOST PROP CONTROL, FEATHERED, AND LANDED. FOUND CAMSHAFT BROKEN AT GOVERNOR DRIVE END. RECORDS SHOW THIS WAS A NEW PART. INSTALLED AT OVERHAUL ON 3/89.SDR CA980407013Actuator · cracked(CAN) PILOT REPORTED LANDING GEAR LIGHT COMING ON IN-FLIGHT AND AFTER GEAR RECYCLED. HYDRAULIC LEAK AROUND PISTON SEAL. TWO CRACKS IN BARREL AT BLOCK END, NO SIGNS OF LEAK. REPLACED.SDR AU981213Spar · corroded(AUS) SUBMITTER STATED INCORRECT STEEL WASHERS (CORRECT TYPE ALUMINIUM) USED UNDER THE LEFT WING ATTACHMENT NUTS CAUSED CORROSION OF THE WING SPAR. AIRCRAFT IS AN AMPHIBIAN AND OPERATES IN A SALT LADEN ENVIRONMENT. 1,301.SDR AU980385Valve Guide · loose(AUS) ENGINE INLET VALVE GUIDE FOUND LOOSE IN HEAD.SDR 98ZZZX957Magneto · failedENGINE HAD 200 RPM DROP ON LEFT MAGNETO. CHECKED MAG TO ENGINE TIMING, AND COULD NOT GET MAG TIMED TO ENGINE. REMOVED MAG FOR INSPECTION. WHEN MAG WAS OPENED, FOUND MAGNET SHAFT SHEARED AT KEYWAY. THIS MAGNETO WAS A NEW/REBUILD FROM TELEDYNE CONTINENTAL INSDR CA980113014Oil Line · cut(CAN) AT SHUTDOWN, OIL LEAK NOTED OUT UNDER RT NACELLE ONTO LANDING GEAR DOORS. OIL PRESSURE LINE CUT UNDER CLAMP AT FIREWALL, TWO PLACES, WIDTH OF CLAMP. IMPROPER SIZE CLAMP. REPLACED CLAMP.SDR 97ZZZX4755Housing · leakA FLAW IN THE CASTING NEAR THE UPPER LEFT HAND CORNER OF THE OIL FILTER ADAPTER MOUNTING PAD WAS ALLOWING OIL UNDER PRESSURE TO LEAK THROUGH THE CASTING. THE ENGINE HAD BEEN OVERHAULED BY LYCOMING 50 HOURS PRIOR TO THE OCCURRENCE.SDR 97ZZZX4300Bearing · failedFOUND LEFT MAGNETO DRIVE BEARING ASSEMBLY COMING APART. BEARING ASSEMBLY WAS WEARING INTO GEAR RETAINER ASSEMBLY PN LW-19096. SUBMITTER STATES INSPECTION OF THESE PARTS SHOULD BE ACCOMPLISHED EACH TIME MAGNETO IS REMOVED.SDR 97ZZZX3191Rotor · wornREMOVED MAGNETO FOR INSPECTION. FOUND ROTOR CRACKED NEAR MAGNET. HOUSING WALLS FOUND TO BE WORN. THERE ALSO WAS NO BEARING, THE METAL FROM THE BEARING WAS INSIDE THE MAGNETO.SDR CA970618022Exhaust Stack · broken(CAN) INSPECTION FOUND THE EXHAUST CROSSOVER PIPE BROKEN AT THE SHROUD. ALSO THE ALTERNATE AIR SPRING DOOR MISSING. HINGE BROKEN. DOOR FOUND IN BOTTOM OF AIR BOX.SDR CA970612013Connector · disconnected(CAN) AIRCRAFT WAS DESCENDING AND SELECTED GEAR BUT DID NOT GET A DOWN AND LOCKED SIGNAL. VERIFICATION WAS CARRIED OUT FOR DOWN AND LOCKED AND AIRCRAFT LANDED. INSPECTION FOUND THE CONNECTOR WIRE BUNDLE DISCONNECTED. NO APPARENT REASON.
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