Lycoming O-540-E4C5
Service difficulty reports · 139
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 = '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.
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
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 98ZZZX3079Crankshaft · splitCRANKSHAFT SPLIT.SDR AU980072Web · cracked(AUS) LH AND RH SPAR WEBS CRACKED BEYOND LIMITS.SDR AU980071Web · cracked(AUS) LH WING SPAR WEB CRACKED BEYOND LIMITS.SDR AU980039Fitting · cracked(AUS) OLEO ASSEMBLY TO LANDING GEAR LEG ATTACHMENT FITTING HAD BOTH FLANGES BROKEN OFF ALLOWING THE WHEELS TO PIVOT THROUGH 360 DEGREES.SDR AU971375Crankcase · faulty(AUS) CRANKCASE TUNNEL MEASUREMENTS OUT OF LIMITS.SDR CA970910006Engine · failed(CAN) ENGINE QUIT WITHOUT WARNING. INSPECTION FOUND METAL IN THE OIL SCREENS. NO EXTERNAL LEAKS OR HOLES. PROBLEM TO BE DETERMINED ON TEARDOWNSDR CA970612003Engine · rough running(CAN) DURING APPROACH THE STARBOARD ENGINE RAN ROUGH FOR A SHORT PERIOD OF TIME, AT WHICH TIME THE ENGINE LOWER COWLING DEPARTED THE AIRCRAFT. THE ENGINE WAS SHUTDOWN AND FEATHERED. THE AIRCRAFT LANDED WITHOUT INCIDENT.SDR 99ZZZX2725Bearing · failedOPERATORS OF AVCO LYCOMING O-540-E4C5 ENGINES FITTED TO BRITTEN NORMAN ISLANDER AIRCRAFT IN GUYANA HAVE BEEN EXPERIENCING PREMATURE FAILURE OF THE MAGNETO DRIVE GEAR BEARINGS. THERE HAVE BEEN INSTANCES OF REPORTED HARD STARTING. ON INVESTIGATION, THE BEARINGSDR AU970502Tube · deteriorated(AUS) PITOT-STATIC SYSTEM LINES LEAKING - INVESTIGATION FOUND LEAKS WERE FROM HEAT SHRINK TUBING (THERMOFIT) USED AT JOINS IN THE PLUMBING AND APPLIED DURING MANUFACTURE - FOUND DURING INSPECTION IAW AD/INST/9 (PITOT/STATIC SYSTEM LEAK CHECK)SDR AU970337Actuator · broken(AUS) LH AILERON ACTUATOR ROD OUTER SEGMENT BROKEN DUE TO OUTER BALLJOINT SEIZING - RH AILERON OUTER BALL JOINT ALSO SEIZED WITHATTACHMENT BOLT LOOSE IN BRACKET - PERSONNEL/MAINTENANCE ERRORSDR AU970272Bushing · worn(AUS) AT ENGINE OVERHAUL THE FOLLOWING WAS FOUND: 1. CRANKCASE GOVERNER IDLER GEAR BUSHING HEAVILY WORN 2. CRANKSHAFT GEAR LOCK BOLT HAD SNAPPED IN THE CRANKSHAFT AND THE GEAR HAD DAMAGED THE DOWEL HOLE - ALSO DAMAGED WERE THE CRANKSHAFT GEAR AND IDLER GEARS 3SDR CA970325008Bracket · cracked(CAN) DURING INSPECTION OF LEFT AND RIGHT ELEVATOR ATTACH BRACKETS, THEY WERE BOTH FOUND SEVERELY CRACKED. UNITS EXHIBITED NO DAMAGE DURING PREVIOUS INSPECTION. PROBLEM BELIEVED CAUSED BY EXCEEDING FLAP EXTEND SPEEDS IN AN EFFORT TO SLOW AIRCRAFT.SDR CA970226005Cylinder · cracked(CAN) COMPRESSION CHECK AT INSPECTION REVEALED A CRACKED #1 CYLINDER. THE CRACK WAS AT THE LOWER SPARK PLUG HOLE.SDR CA970305003Pedal Beams · cracked(CAN) DURING INSPECTION PER PBN SB 56 AND 111, FOUND PILOTS LEFT AND RIGHT RUDDER PEDAL BEAM CRACKED. ALSO FOUND JO-BOLTS LOOSE ON THE STEERING LEVER. NOTE: NB/M/948 AND 428 HAD BOTH BEEN INSTALLED 2500 CYCLES PREVIOUSLY.SDR AU970380Tyre · faulty(AUS) RH MAIN LANDING GEAR TYRE AND WHEEL UNSERVICEABLE.SDR AU970400Doubler · cracked(AUS) LH AND RH MAIN LANDING GEAR UPPER LEG SUPPORT REAR DOUBLERS CRACKED. SEE MDR 97/0380 FOR ADDITIONAL INFORMATIONSDR AU970401Bearing · faulty(AUS) FLIGHT CONTROL BEARINGS AND HINGES UNSERVICEABLE. SEE MDR 97/0380 FOR ADDITIONAL INFORMATIONSDR AU970403Flap · damaged(AUS) FLAPS IN NEED OF MAJOR REPAIR. SEE MDR 97/0380 FOR ADDITIONAL INFORMATIONSDR AU970404Aileron · damaged(AUS) AILERON IN NEED OF MAJOR REPAIR. SEE MDR 97/0380 FOR ADDITIONAL INFORMATIONSDR AU970405Elevator · cracked(AUS) LH ELEVATOR CRACKED. SEE MDR 97/0380 FOR ADDITIONAL INFORMATIONSDR AU970406Structure · corroded(AUS) AIRCRAFT STRUCTURE CONTAINED LARGE AMOUNTS OF CORROSION. FOUND DURING UNSCHEDULED INSPECTION IAW AD/BN-2/53. SEE MDR 97/0380 FOR ADDITIONAL INFORMATIONSDR 97ZZZX3946Idler Gear · wornPILOT REPORTED INOPERATIVE MAGNETO ON REAR ENGINE, LEFT POSITION. MECHANIC REMOVED MAGNETO AND FOUND THE LEFT CRANKSHAFT IDLER GEAR ASSEMBLY WORN OUT AND ENGINE OIL SUMP SUCTION FILTER CONTAMINATED WITH METAL PARTICLES. ENGINE CHANGED.SDR CA970114003Breather Tube · frozen(CAN) CRANKCASE BREATHER LINE FROZE. CRANKCASE PRESURIZED AND OIL DIP STICK WAS BLOWN OUT OF SECURE POSITION. OIL WAS ESCAPING, PILOT NOTICED OIL ON ENGINE NACELLE AND SHUTDOWN ENGINE. NO SECONDARY HOLE IN BREATHER LINE FOUND.SDR CA961126003Skin · cracked(CAN) SKIN ON THE NACELLE AFT CLOSURE FOUND CRACKED AT AREA DIRECTLY ABOVE THE LANDING GEAR FAIRING. THE REAR NACELLE BULKHEAD PASSES THROUGH THE CRACKED PLATE.SDR CA961126004Elevator · cracked(CAN) RIGHT SIDE ELEVATOR AT 44 INCHES INBOARD OF TIP SMOKING RIVETS NOTED WHICH LED TO DISCOVERY OF A CRACK. FURTHER INVESTIGATION NOTED THAT PILOTS HAD BEEN VERBALLY REPORTING SOME VIBRATION.SDR AU961136Rib · cracked(AUS) LH HORIZONTAL STABILISER INNER NOSE RIB CRACKED AT STN 11.40 - SUSPECT CAUSED BY HORIZONTAL STABILISER BEING USED AS AMAINTENANCE STAND IN LIEU OF THE CORRECT ITEM - PERSONNEL/MAINTENANCE ERRORSDR AU961135Oleo Support · sheared rivet(AUS) LH LANDING GEAR OLEO SUPPORT FITTING PNO NS-40-C-075 TO MLG TUBE PNO NS-40-D-403 ATTACHMENT RIVETS SHEARED ALLOWING THE MLG WHEEL ASSEMBLY TO TURN RELATIVE TO THE AIRCRAFT CENTRELINE - OCCURRED DURING MINIMUM RADIUS TURN DURING TAXISDR AU960635Skin · damaged(AUS) RH WING INTERIOR SKIN DAMAGED IN AREA ADJACENT TO REAR WING ATTACHMENT DUE TO ANGLE GRINDER DIGGING INTO AND THROUGH INTERIORSKIN - FOUND DURING INSPECTION IAW AD/BNT/17-2 - PERSONNEL/MAINTENANCE ERRORSDR AU960557Bracket · cracked(AUS) RH MAIN LANDING GEAR BRACKET CRACKED AND BROKENSDR 96ZZZX4933Crankshaft · corrosion pitsENGINE DISASSEMBLED AT O/H, CRANKSHAFT INSPECTED. FRONT MAIN ID FND WITH NUMEROUS CORROSION PITS, APPROX 2.0 INCHES AFT OF FRONT EDGE OF FLANGE PILOT. CRANK ASSY LW 17676, SN V721 (CRANK AND BUSHING SUBASSY LW17622) HAS ALWAYS OPERATED WITH CONSTANT-SPEED PSDR AU960222Magneto · contam water(AUS) RH ENGINE RH MAGNETO FAULTY - INVESTIGATION FOUND WATER CONTAMINATION SUSPECT CAUSED BY BLOCKAGE OF GAUZE SCREENSDR AU960343Magneto · faulty(AUS) MAGNETO CAPACITOR LEAKING - CONTACT GAP LESS THAN 0.304MM (0.012IN)SDR AU960345Coupling · worn(AUS) MAGNETO IMPULSE COUPLING WORN IN EXCESS OF 0.3556MM (0.014IN) - INTERNAL TIMING GEAR OUT ONE TOOTH - FOUND DURING INSPECTION IAW AD/ELECT/27 AMDT6SDR AU960346Magneto · out of adjust(AUS) MAGNETO CONTACT GAP LESS THAN 0.3048MM (0.012IN) - INTERNAL TIMING GEAR OUT BY ONE TOOTHSDR AU960053Bracket · broken(AUS) LH MLG SUPPORT BRACKET FLANGES BROKEN AWAY FROM THE COLLAR IN TWOPLACES OPPOSITE ONE ANOTHER - ONE SECTION BREAK IS APPROXIMATELY 100MM (4IN) AND THE OPPOSITE BREAK IS APPROXIMATELY 77MM (3IN) - THERE ARE CLEAR SIGNS OF INTERGRANNULAR CORROSION THROUGH TSDR 96ZZZX1101Pump · failedDURING SCHEDULED FLIGHT AFTER TAKEOFF CLIMB AT 700 MSL, THE REAR ENGINE STARTED DECREASING RPM'S, AND INCREASING MANIFOLD ON REAR ENGINE. VIBRATION FELT ON AIRCRAFT RETURN AND LANDING WITHOUT ANY FURTHER INCIDENT. REAR ENGINE RUN-UP AND FOUND DEFECTIVE MECHASDR 95ZZZX6148Bearing · failedDURING ROUTINE OIL CHANGE, FND METAL PIECES OF BALL BEARING CAGE IN SUCTION SCREEN. REMOVAL OF LT MAG REVEALED ALMOST TOTAL FAILURE OF LT MAG DRIVE BRG & ITS SLEEVE IN CRANKCASE. SLEEVE HAD BEEN INSTALLED IAW LYC SI NR 1140 DURING ENG O\H. THIS IS 5TH FINDISDR 95ZZZX3278Bearing · failedDURING COMPLIANCE OF AD78-09-07R3 MAGNETO IMPULSE COUPLING, DISCOVERED BEARING ASSY LOST ITS BALL BEARING CAGE ASSY. ONE-HALF OF CAGE ASSY WAS FOUND IN THE OIL SUMP. THIS COULD LEAD TO COMPLETE FAILURE OF ENGINE IF UNDETECTED. SUBMITTER STATED THIS IS FOURTSDR 95ZZZX3262Bushing · looseDURING COMPLIANCE OF AD78-09-07R3, MAGNETO IMPULSE COUPLING INSPECTION, DISCOVERED THAT PREVIOUS COMPLIANCE WITH LYCOMING SI NR 114D, THE MAGNETO DRIVE BUSHING HAD WORKED LOOSE. FABRICATED AND RE-INSTALLED NEW BUSHING IAW LYCOMING SI NR 1140.
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