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 2005FA0000119Bearing · failedCUSTOMER COMPLAINED OF A VIBRATION ON RT ENGINE. INSPECTION REVEALED CAGE FAILURE OF THE RT MAGNETO DRIVE GEAR BEARING (PN 67542). CAUSE OF CAGE FAILURE NOT KNOWN. CANNOT RECOMMEND ACTION TO PREVENT REOCCURRENCE. (K)SDR NAH2005F00000Cylinder · crackedWHILE PERFORMING AN ENGINE RUN-UP/MAG CHECK, NR 5 CYLINDER ON THE RT ENGINE CRACKED/DISLOCATED AT THE INTERFACE AREA OF THE STEEL BARREL TOP AND ALUMINUM HEAD. THE ENGINE WAS SHUT DOWN AND RESULTANT LOCALIZED FIRE WAS CONTAINED TO THE IMMEDIATE AREA BY THE SDR CA041203005Battery · wrong partUNDER MANUF INSPECTION AND RECERTIFICATION PROCESS, CANADIAN AIR MOTIVE FOUND ILLEGAL AND UNAPPROVED BATTERY PACK INSIDE ELT (NOT EXPIRED CONDITION AUG 2006). AS PER EBC MANDATORY CLASS 1 SERVICE BULLETIN NO.: 8401, ONLY GS21 OR GS51 IS APPROVED FOR THIS ELT SDR 20041024Bracket · crackedALTERNATOR BELT ADJUSTMENT BRACKET CRACKED AT THE SLOTTED END.SDR CA040709004Wire · cut(CAN) IN FLIGHT, THE PILOT NOTICED THAT THE LT ENGINE CYLINCER TEMPERATURE WAS ABNORMALLY HIGH. ALL OTHER PARAMETERS WERE IN THE GREEN. THE PILOT ASKED FOR A PRIORITY LANDING. WE DISCOVERED THAT THE WIRING FOR THE CHT PROBE WAS CUT. THE TERMINAL WAS REPLACESDR D4O2004F00000Nut · looseENGINE SUFFERED CATASTROPHIC FAILURE. AT ENGINE TEARDOWN, THE NR 6 PISTON (FRAGMENTED), PISTON RINGS, CONNECTING ROD, ROD CAP, BEARINGS, ROD BOLTS, AND NUTS WERE FOUND IN THE OIL SUMP. ONE ROD BOLT WAS BROKEN AND ITS NUT WAS ON IT. THE OTHER ROD BOLT WAS NOSDR CA040709010Indicator · inoperative(CAN) LANDING GEAR LIGHTS WOULD NOT WORK. NOTICED FLAP INDICATOR DARK IN COLOR. DISCONNECTED WIRE FROM THE FLAP INDICATOR AND GEAR LIGHTS WORKED. REPLACED INDICATOR AND SYSTEM WORKED NORMAL.SDR AUS20040460Spar · cracked(AUS) LT AND RT FORWARD AUXILIARY SPARS CRACKED AT IB LOWER RAD II LOCATED AT STN 27. CRACKS EXTEND FOR APPROXIMATELY 12.7MM(0.5IN) OB OF THE END OF THE SPAR IN A HORIZONTAL PLANE.SDR CA040610013Bearing · loose(CAN) AFH: 8900.9 DATE: MAY 20 RT ENGINE -- LT MAGNETO, DAMAGE WAS DISCOVERED DURING A 100HR INSPECTION. DECIDED TO REMOVE THE LT MAGNETO FOR INSPECTION OF THIS AREA. (HAVE ADDED THIS TO OUR INSPECTION PROGRAM) WHEN THE MAGNETO WAS REMOVED THE MAGNETO GEAR RSDR AUS20031034Bolt · corroded(AUS) STABILATOR BALANCE WEIGHT ATTACHMENT BOLTS AND ACTUATOR COLLAR ATTACHMENT BOLTS CORRODED (RUSTED). BOLT PART NUMBERS PN AN175-32A AND PN AN175-33A.SDR CA031022010Spar · cracked(CAN) CRACKED AT BOLT HOLES AT SPAR ATTACHMENT.SDR CA030926003Bearing · worn(CAN) RT ENGINE, LT MAGNETO-ENGINE HOURS: 1230.5 SN. L-8588-48. DAMAGE WAS DISCOVERED DURING 100 HOUR INSPECTION. REMOVAL OF ONE LT MAGNETO WAS REQUIRED TO COMPLETE A MAGNETO INSPECTION. WHEN MAGNETO WAS REMOVED MAGNETO GEAR RETAINER ASSY AND BEARING PULLED OUSDR CA030908002Line · chafed(CAN) AFTER TAXIIING THE AIRCRAFT FOR MAINTENANCE WE NOTICED HYDRAULIC FLUID ON THE FLOOR UNDER THE RT WING ROOT. AFTER REMOVING THE BELLY PANEL FOR INSPECTION THE LEAK WAS FOUND TO BE LOCATED ABOUT 20 INCHES AFT OF THE LEADING EDGE OF THE RT WING WHERE THE LSDR CA030926005Drag Link · cracked(CAN) THE LT GEAR LEG SUPPORT BRACE AT THE REAR ATTACHEMENT FITTING WAS CRACKED COMPLETELY TO THE BOLT HOLE. PART WAS REMOVED AND WAS WELD REPAIRED. IT WAS SENT FOR NDT TOGETHER WITH RIGHT DRAG LINK AND DRAG LINK CASTING AND PASSED. PARTS WERE RE-INSTALLED CHSDR 2003FA0000919Horn · corrodedDURING COMPLIANCE OF AD, THE FLAP TUBE WAS FOUND NOT TO PASS. A NEW STEEL TUBE WS ORDERED AND IN THE REPLACEMENT PROCEDURE THE LEFT BELLCRANK (PN 16424-00) WAS FOUND TO HAVE RUST INSIDE. USING AN AWL TO PUSH ON THE RUSTED AREAS, IT COLLAPSED THE WALLS. WATSDR CA030926004Control Cable · broken(CAN) WHILE TESTING OPERATION OF LT FUEL SELECTOR CONTROL NOTICED THAT THE LT SIDE WAS MOVING VERY EASY. FURTHER INSPECTION FOUND THAT THE INNER CABLE HAD BROKEN LEAVING THE FUEL VALVE IN AN UNKNOWN POSITION. CABLE WAS REPLACED WITH NEW.SDR AUS20030810Buss Bar · shorted(AUS) AVIONICS BUSS BAR CONTACTING CIRCUIT BREAKERS CAUSING CONTINUOUS POWER TO BE SUPPLIED TO THE BUSS BAR WITH THE AVIONICS MASTERSWITCH TURNED OFF.SDR CA030805005Wire · broken(CAN) ON APPROACH THE NOSE GEAR INDICATION LIGHT WAS NOT ILLUMINATED. AFTER A FEW RETRACTIONS OF THE LANDING GEAR, THE PILOT PERFORMED A LOW APPROACH TO OVERSHOOT TO CONFIRM VISUALLY THAT THE GEAR WAS DOWN. A PRECAUTIONARY ENGINE OFF LANDING WAS CARRIED OUT. FSDR CA060206011Piston Ring · seized(CAN) AIRCRAFT WAS AIRBORNE FOR APPROXIMATELY 10 MINUTES WHEN ENGINE OIL TEMPERATURE OBSERVED HIGHER THAN USUAL. ENGINE SEEMED TO RUN ROUGH, AIRCRAFT RETURNED TO AIRPORT AND LANDED WITHOUT INCIDENT. UPON INSPECTION FOUND NR 6 CYLINDER IN AN ALMOST SEIZED CONDISDR AUS20030430Cylinder · damaged(AUS) RH ENGINE NR 4 AND NR 6 CYLINDERS EXTENSIVELY HEAT DAMAGED. SUSPECT EXHAUST HAD SEPARATED FROM CYLINDER.SDR CA030409015Downlock · stiff(CAN) ONCE THE PILOT SELECTED LANDING GEAR UP, THE GEAR DID NOT RETRACT. WE DISCOVERED THAT THE DOWN LOCK MECHANISM WAS HARD TO MANEUVER, AFTER LUBRICATION AND CLEANING WE CARRIED OUT GEAR RETRACTION. SYSTEM SERVICEABLE.SDR CA030311007Control Cable · frayed(CAN) STABILATOR TRIM BINDING DUE TO FRAYED WIRES, DISCOVERED DURING PRE-FLIGHT.SDR AUS20021446Housing · cracked(AUS) ENGINE OIL FILTER HOUSING CRACKED FROM BOLT HOLE. SUSPECT CAUSEDBY OVERTORQUING.SDR CA030108002Bolt · loose(CAN) ALTERNATOR FAILED IN FLIGHT. INSPECTION AFTER THE NACELLE DOORS WERE OPENED REVEALED THAT THE FORWARD BOLT, WHICH HOLDS THE ALTERNATOR, BECAME LOOSE AND WAS FOUND BETWEEN THE STARTER AND RING GEAR ASSEMBLY. THE DRIVE BELT WAS OFF AND THE RING GEAR WAS CRSDR CA021108011Bearing · destroyed(CAN) LT ENGINE, LT MAGNETO. DURING A 100 HR INSP, OIL FILTER OF LT ENGINE WAS SECTIONED AND INSPECTED. METAL WAS FOUND IN FILTER. SUCTION SCREEN WAS REMOVED AND INSP, PIECES OF A BEARING DISCOVERED. FURTHER DISASSEMBLY WAS REQUIRED. LT OR RT MAGNETO WAS SDR CA021108010Bearing · loose(CAN) RT ENGINE, LT MAGNETO. DAMAGE WAS DISCOVERED DURING ACCOMPLISHMENT OF AN UNRELATED AD, REMOVAL OF ALL ACCESSORIES ON THE ACCESSORIES HOUSING WAS REQUIRED, FOR THIS AD. WHEN THE MAGNETO WAS REMOVED THE MAGNETO GEAR RETAINER ( ASSY AND BEARING PULLED OSDR CA021108009Bearing · loose(CAN) RT ENGINE, LT MAGNETO. DAMAGE WAS DISCOVERED DURING ACCOMPLISHMENT OF AN UNRELATED AIRWORTHINESS DIRECTIVE KNOWN AS, AD2002-20-51. REMOVAL OF ALL ACCESSORIES ON THE ACCESSORIES HOUSING WAS REQUIRED, FOR THIS AD. WHEN THE MAGNETO WAS REMOVED THE MAGNETO SDR AUS20020892Gear · stripped(AUS) LH ENGINE RH MAGNETO DISTRIBUTOR GEAR TEETH STRIPPED. APPROXIMATELY HALF OF THE TEETH WERE SHEARED OFF AT THE ROOTENDS. SUSPECT CAUSED BY ENGINE BACKFIRE.SDR AUS20020658Pin · broken(AUS) FUEL SELECTOR ROLL PINS BROKEN. RH FUEL SELECTOR HAD ONE ROLL PIN MISSING.SDR CA020626015Pump · failed(CAN) DURING A RUN-UP THE PILOT NOTICED FLUCTUATIONS OF THE ENGINES PARAMETERS AS WELL AS ONTHE FUEL FLOW INDICATOR. THE MECHANICAL FUEL PUMP WAS FOUND TO BE THE CAUSE OF THESE FLUCTUATIONS. THE PUMP WAS REPLACED.SDR UQM2002F00001Cylinder · failedCYLINDER WAS INSTALLED USING NEW RINGS AND GASKET SET FROM ECI ALSO. REMOVED CYLINDER DUE TO LOW COMPRESSION AND EXHAUST STAINS AROUND THE EXHAUST AREA. FOUND THAT HEAD WAS CRACKED BETWEEN BOTH SPARK PLUG HOLES AND BY THE EXHAUST SEAT, WHICH IN RETURN BURNEDSDR CA020510011Line · bent(CAN) DURING COMPLIANCE WITH AD 93-02-05 (FUEL INJECTION)TUBE WAS FOUND BENT, AFTER REMOAL, TUBE WAS FOUND WORN TOO. IT WAS NOT CHAFING ON OTHER COMPONENT.SDR CA020307006Disk · cracked(CAN) DURING INSPECTION BOTH LT AND RT MAIN WHEEL BRAKE DISCS WERE FOUND CRACKED. EACH HAD ONE 1/2 INCH CRACK ON THE RING PORTION (BRAKING PORTION).SDR CA020215014Pump · leaking(CAN) OIL WAS FOUND LEAKING FROM RIGHT ENGINE DRAIN LINES. PUMP WAS REPLACED WITH NEW.SDR UQM2002F00000Heater · inoperativeREMOVED HEATER FROM AIRCRAFT, 12 VOLT STYTEM AND FOUND (PN 45D70-1A) 24 VOLT. NO ENTRY IN THE AIRCRAFT LOG BOOK OF HEATER REPLACED. AFTER TALKING TO OVERHAUL SHOP, THEY ARE THE SAME HEATER EXCEPT ONE IS A 12 VOLT AND THE OTHER 24 VOLT ON THE COMPONENTS. HEASDR AUS20020017Propeller · faulty(AUS) PROPELLER BLADE CLAMP BOLTS NOT IN SAFETY. NO SPACERS BETWEEN SPINNER BACKPLATE AND PROPELLER HUB. PROPELLER BLADES CONTACTINGBACKPLATE WHEN BLADE IS IN THE FEATHER POSITION.PERSONNEL/MAINTENANCE ERROR.SDR AUS20020018Cylinder · faulty(AUS) LT ENGINE NR 2 CYLINDER OUT OF ROUND. NR 5 CYLINDER BORE STEPPED AND BLUE MARKING ON FINS. NR 1 CYLINDER IS MARKED AS NITRIDED BUT IS ACTUALLY A CHROMED CYLINDER. RT ENGINE NR 4 CYLINDER NOT ENTERED ON RELEASE NOTE. NR 2 CYLINDER IS NOT MARKED ORANGE FORSDR CA011130012Spring · broken(CAN) - RIGHT HAND MAIN LANDING GEAR INDICATION FAILED IN FLIGHT. - PILOT RECYCLED GEAR AND LIGHT APPEARED TO WORK. - INSPECTION REVEALED A BROKEN DOWNLOCK SPRING.SDR CA021108007Bearing · destroyed(CAN) RT ENGINE, LT MAGNETO ENGINE HOURS: 745.2 DAMAGE WAS DISCOVERED DURING ROUTINE SCHEDULED MAGNETO REPLACEMENT. WHEN THE MAGNETO WAS REMOVED THE MAGNETO GEAR RETAINER ASSY AND BEARING PULLED OUT OF THE ENGINE TOGETHER WITH THE DRIVE COUPLING.UPON FURTHER SDR CA010817003Indicator · failed(CAN) WHILE LANDING THE LT WHEEL LIGHT DID NOT COME ON. AFTER VERIFICATION WITH THE MIRABLE TOWER WHO CONFIRMED 3 WHEELS OUT. THE AIRCRAFT RETURNED TO ST-HUBERT WITH THE LANDING GEAR DOWN. THE LIGHT CAME ON WHILE ONROUTE TO ST-HUBERT. 2 ELECTRICAL TERMINALS WESDR CA010529016Isolator · loose(CAN) TO KEEP FRONT OF ENGINE FROM CONTACTING COWL, ADDITIONAL P/N 85012-101 WASHERS WERE FOUND UNDER LOWER CORD MOUNTS TO RAISE FRONT OF ENGINE. . . .SDR AU010113Pin · broken(AUS) LT FUEL SELECTOR ROLL PINS (2OFF) BROKEN.SDR 20010125CW006Selector Valve · leakingAC WAS PUT IN UNHEATED HANGER WITH FULL FUEL TANKS, FOUND FUEL ON FLOOR UNDER BOTH WINGS, WAS FOUND TO BE LEAKING FROM OVERFLOW TUBES OF BOTH INBOARD FUEL TANKS WHICH WERE FULL. OUTBOARD TANKS WERE DOWN, ONLY CONNECTION BETWEEN IB AND OB TANKS IS THROUGH FUEL SDR CA001129007Torque Tube · cracked(CAN) DURING THE TAKEOFF ROLL, A STRONG VIBRATION WAS FELT AND THE PILOT ABORTED THE TAKEOFF AND TAXIED THE AIRCRAFT TO THE HANGAR. AFTER INSPECTION, THE TORQUE TUBE WAS FOUND CRACKED AND BENT. THE PIECE WAS REPLACED.SDR 20001214SH010Cylinder · burnedAIRCRAFT ON 135 FLIGHT, PILOT NOTICED BLUE FLAME IN COWLING, RIGHT ENGINE. LANDED AT COLUMBIA, MO ON A SCHEDULED STOP. FOUND NR 5 CYLINDER HAD EXHAUST HOLE BURNED THROUGH CYLINDER FORWARD SIDE, .25 INCH BY 1 INCH. HOLE STARTED ON INSIDE EXHAUST PART BY EXHASDR CA001205003Bushing · worn(CAN) ON INSPECTION, STABILATOR TRIM WAS FOUND TO BIND AT STOPS. FREEPLAY WAS FOUND BETWEEN TRIM DRUM AND BRACKET. TRIM DRUM WAS REMOVED AND DISASSEMBLED. NEW BUSHINGS INSTALLED. SYSTEM RE-ASSEMBLED, HOWEVER SYSTEM CONTINUED TO BIND INTERMITTENTLY. FURTHER SDR 20001121SH003Flyweight · separatedCUP SEPARATION AT WELD. (X)SDR 20001031SH004Magneto · damagedMAGNETOS REMOVED FOR OVERHAUL. UPON EXAM OF LT MAG DRIVE GEAR AND ROTATING MAGNET THREAD END, NOTED NUT, PN 10-163178, WAS LOOSE. ALSO, DRIVE BUSHING, PN 10-357193 WAS LOOSE ALLOWING PLATE DRIVE, PN 10-163216 TO SHIFT ALIGNMENT OF DRIVE GEAR WHICH ATE INTO BSDR 20001013SH009Connecting Rod · flakingDURING ROUTINE OIL CHANGE, FOUND ABUNDANT METAL PARTICLES IN OIL FILTER AND FINGER SCREEN. AFTER CONFERRING WITH LYCOMING, ALL CYLINDERS WERE PULLED TO CHECK PILOTED PISTON PIN PLUGS, NO ABNORMAL WEAR WAS NOTED. SENT OIL FILTER AND FINGER SCREEN METAL TO LYCSDR CA000724024Master Cylinder · leaking(CAN) WHILE WORKING ON ANOTHER NEARBY AIRCRAFT IN HANGAR, MECHANIC NOTICED PUDDLE OF HYDRAULIC FLUID UNDER THE AZTEC. MONITORED FOR ONE HOUR, INCREASED IN SIZE OF PUDDLE COMFIRMED LEAK TO BE MAJOR. OIL RAN FROM NOSE NACELLE AREA TO MID-CENTER SECTION BEFORE
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