JASC 8540
Service difficulty reports · 167
Reports filed under 8540 · Reciprocating Engine Rear Section, newest first.
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 jasc_code = '8540' 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 jasc_code = '8540' 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 AU000980Sleeve · failed(AUS) LEFT ENGINE STARTER DRIVE NEEDLE ROLLER BEARING SLEEVE FAILED. METAL CONTAMINATION OF OIL SYSTEM. THE SLEEVE IS NOT AC ONTINENTAL PART. UNAPPROVED PART. (X).SDR AU001006Shaft · stripped(AUS) ENGINE STARTER SHAFT GEAR TEETH STRIPPED. CRANKSHAFT GEAR DAMAGED. (X)SDR AU000979Shaft · stripped(AUS) RH ENGINE STARTER GEAR TEETH STRIPPED.SDR CA001004004Gear · destroyed(CAN) CRANKSHAFT GEAR FAIL CAUSING DAMAGE TO OTHER ACCESSORY GEARS AND RESULTING IN ENGINE STOPPAGE.SDR AU000678Spring · broken(AUS) ENGINE STARTER/ ADAPTER CLUTCH SPRING BROKEN EIGHT COILS FROM THE ATTACHMENT POINT TO THE CLUTCH DRUM. (X)SDR AU000676Stud · missing(AUS) LEFT ENGINE TACHOMETER DRIVE COVER STUD MISSING. OIL LEAKING ONTO HOT EXHAUST. (X)SDR 20000911SH041Gear · fracturedAIRCRAFT MADE AN EMERGENCY LANDING FOLLOWING SUDDEN ENGINE FAILURE DURING CRUISE FLIGHT. UPON INSPECTION, THE CRANKSHAFT GEAR HAD 5 OR 6 TEETH MISSING AND THE REMAINING TEETH WERE ROUNDED AND EXHIBITED GALLING-LIKE DAMAGE SIMILAR TO THAT FOUND ON THE MAGNETO SDR CA000804012Accessory Unit · failed(CAN) - ON SCHEDULED MAINTENANCE, THE VACUUM PUMP ACCESSORY DRIVE GEAR WAS OBSERVED AS FAILING TO TURN WITH PROPELLER ROTATION. ENGINE OIL SCREEN COVERED IN METAL PARTICLES, SLIVERS AND FLAKES ALL MAGNETIC. ENGINE REMOVED, SENT TO TELEDYNE CONTINENTAL FACTSDR 20000531SH006Seal · failedDURING FINAL APPROACH, PILOT NOTED LOW OIL PRESSURE INDICATION. DURING INVESTIGATION OF OIL LOSS, IT WAS NOTED THAT THE OIL SEAL LIP WAS TURNED OUTWARD AND THE TENSION SPRING WAS MISSING. APPROXIMATELY 1 QUART OF OIL REMAINED IN THE OIL SUMP. SEAL WAS IN LOSDR AU000334Bearing · disintegrated(AUS) STARTER ADAPTER FRONT SUPPORT BEARING DISINTEGRATED. METAL CONTAMINATION OF ENGINE OIL SYSTEM.SDR 20000522SH001Housing · crackedTACHOMETER DRIVE HOUSING CRACKED AT OIL PRESSURE BOSS. BOSS ON DRIVE HOUSING NEEDS TO BE BEEFED UP. CRACKS DUE TO WEAK CASTING. (X)SDR 20000515SH009Gear · mismanufacturedNEW OIL PUMP DRIVEN GEAR DOES NOT HAVE THE CHAMFER ON THE INSIDE OF THE TWO DRIVE SLOTS. THIS IS A MFG''S DEFECT. WHEN THE DRIVE IMPELLER NR 653814 IS INSTALLED, AND TACH NUT TORQUED, THE NR 654720 GEAR BOTTOMS ON THE 2 RADIUSES OF THE DRIVE DOGS THAT ENGAGE TSDR 20000508SH019Gear · brokenON CRUISE FLIGHT, LEFT ENGINE QUIT. PILOT LANDED, INVESTIGATION REVEALED BROKEN CRANKSHAFT GEAR. ENGINE RETIRED FROM SERVICE AND AND OVERHAULED ENGINE INSTALLED ON AIRCRAFT. (X)SDR CA000320012Coupling · disintegrated(CAN) DURING SCHEDULED MAINTENANCE, METAL CONTAMINATION WAS FOUND IN THE OIL FILTER. FURTHER INVESTIGATION REVEALED PARTS OF THE ALTERNATOR DRIVE BUSHINGS IN THE OIL SUMP AND THE ALTERNATOR DRIVE COUPLING AND GEAR DESTROYED. THE ENGINE WAS REMOVED AND SENT FOSDR AU000164Gearbox · failed(AUS) ENGINE SUSPECT GEARBOX FAILURE.SDR AU000068Gearbox · failed(AUS) ENGINE GEARBOX SUSPECT FAILURE.SDR AU000095Stud · sheared(AUS) IDLER GEAR SUPPORT PIN SECURING STUD SHEARED.SDR CA991028013Crank Case · cracked(CAN) CRACK FOUND IN VICINITY OF STARTER PAD.SDR 99ZZZX4549Support Pin · failedFOREIGN OBJECT DAMAGE WITHIN LEFT ENGINE ASSEMBLY CAUSED IDLER GEAR SUPPORT PIN BETWEEN MAGNETO DRIVES TO SHEAR CAUSING MOUNT STUDS TO BREAK AND THE GEAR IT RIDES ON TO ROTATE AND BECOME UNMESHED. IT AFFECTED MAGNETO TIMING AND CAUSED ENGINE TO LOSE POWER ANDSDR AU990806Bearing · failed(AUS) LEFT ENGINE STARTER ADAPTER FRONT ROLLER BEARING FAILED. METALCONTAMINATION OF ENGINE OIL SYSTEM.SDR CA990728069Pump · worn(CAN) AD 96-09-10C FOUND NOT EMBODIED ON AIRCRAFT. OIL PUMP EMANENT FAILURE WAS TO RESULT.SDR 99ZZZX2478Drive Gear · wornDURING ROUTINE MAINTENANCE, A METALLIC CLUNK WAS DETECTED WHILE ROCKING THE PROPELLER. FURTHER INVESTIATION REQUIRED REMOVAL OF THE ALTERNATOR. NOISE DID NOT EXIT WITH ALTERNATOR REMOVED. VISUAL INSPECTION OF THE RING GEAR ON THE CRANKSHAFT SHOWED IRREGULARSDR AU990497Bearing · failed(AUS) RT ENGINE NR 1, NR 2 AND NR 3 CONNECTING ROD BIG END BEARINGS WORN. INVESTIGATION FOUND THE STARTER ADAPTER WORM GEAR NEEDLE ROLLER BEARING HAD FAILED CONTAMINATING THE OIL SYSTEM AND PARTIALLY BLOCKING OIL SUPPLY TO THE CONNECTING ROD BIG END BEARINGS.SDR 99ZZZX2184Adapter · making metalFOUND RT ENGINE OIL FILTER CONTAMINATED WITH METAL. METAL COMING FROM STARTER ADAPTER BEARING HOUSING. KIT QE6642 INSTALLED BY FACTORY, ALSO CSB 94.4 REPETITIVE INSPECTION N/A PER LOG BOOK. INSPECTED LT ENGINE PER CSB 94-4. OK AT THIS TIME.SDR 99ZZZX1457Adapter · spalledAIRCRAFT IN FOR ROUTINE (SCHEDULED) 100 HOUR INSPECTION. STARTER ADAPTERS WERE REMOVED FROM BOTH ENGINES, AND INSPECTED IAW TCM SB NR CS894-4A. THE ADAPTER ASSY AND CRANKSHAFT GEAR ON THE NR 2 ENGINE (ITEM 3) DID NOT PASS INSPECTION CRITERIA OUTLINED, (DEEP SPSDR CA990308008Idler Gear · broken(CAN) DURING FLIGHT, THE NR 2 ENGINE BEGAN TO LOSE POWER. AFTER AN UNSCHEDULED LANDING, THE ENGINE QUIT ON GROUND. INSPECTION FOUND DAMAGED GEARS IN THE REAR GEARBOX, TEETH MISSING ON THE DAMAGED GEARS CAUSED THE CAMSHAFT TO STOP TURNING, THIS LED TO ENGINESDR 99ZZZX1053Gear · brokenFLT 709 - VIEQUES TO LUIS MUNOS MARIN INT'L AIRPORT OVER PLAZA CAROLINA, LEFT ENGINE LOST POWER AND QUIT. REAR CASE OPENED AND FOUND CRANKSHAFT GEAR BROKEN AND ENGINE CONTAMINATED.SDR AU980947Gear · cracked(AUS) STARTER SHAFT GEAR TOOTH CRACKED. SUSPECT CAUSED BT BACKFIRE DURING START. FOUND USING NDT.SDR 98ZZZX2465Drive Gear · failedWHILE IN-FLIGHT, OIL PRESSURE AND TACHOMETER DROP TO ZERO, WAS ABLE TO LAND ON PRIVATE GRASS STRIP WITHOUT INCIDENT. DETERMINED THE OIL PUMP DRIVE GEAR HAS FAILED CAUSING FAILURE OF OIL PUMP, TACH DRIVE AND ALTERNATOR GEAR.SDR 98ZZZX2231Gear · failedVACUUM PUMP FAILED. NEW PUMP WOULD NOT WORK. FOUND GEAR TEETH (ALL) MISSING FROM DRIVE GEAR.SDR 98ZZZX3137Idler Gear · brokenSTX/FDO - FLT 908 - ON DESCENT LEAVING 2,000 FEET, NR 2 ENGINE QUIT. FOLLOWING ALL PROCEDURES, PILOT FEATHERED ENGINE AND LANDING AT FDO AIRPORT WITHOUT FURTHER PROBLEMS. BROKEN GEAR ASSY FOUND AND ENGINE REMOVED FOR FURTHER INSPECTION. OVERHAULED ENGINE, INSDR 98ZZZX4520Starter Adapter · wornTHE ENGINE WOULD NOT CRANK OVER. INVESTIGATION REVEALED THE STARTER MOTOR WAS TURNING. INSPECTION OF THE STARTER ADAPTER, INTERNALLY, INDICATES EXCESSIVE CLEARANCES. REPLACEMENT OF THE UNIT RESOLVES PROBLEM. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE SDR AU980309Bearing · failed(AUS) STARTER SHAFT BEARING FAILED. METAL CONTAMINATION OF OIL SYSTEM.SDR AU980298Gear · failed(AUS) CRANKSHAFT IDLER GEAR TEETH FAILED. DAMAGE TO CAMSHAFT GEAR AND CRANKSHAFT GEAR. LOSS OF DRIVE TO OIL PUMP AND MAGNETO.SDR 98ZZZX446Gasket · failedON TAKEOFF, PILOT NOTICED OIL ON RT COWLING. ACFT RETURNED AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND AN900-28 GASKET AT OIL SCREEN COVER ADAPTER LEAKING. GASKET WAS REPLACED AND ENGINE TEST RAN OK.SDR 97ZZZX5175Pump Adapter · crackedFOUND HYDRAULIC PUMP ADAPTER WITH CRACKED MOUNT FLANGE. SUBMITTER STATED WILL CRACK AROUND ANY OF THE 4 HOLD-DOWN FLANGES.SDR 98ZZZX219Accessory Sect · failedWHILE IN CRUISE FLIGHT, ENGINE RAN ROUGH FOR APPROXIMATELY 5 SECONDS, THEN OIL PSI LIGHT AND FUEL LIGHT CAME ON. ENGINE WAS SHUT DOWN AND PROPELLER FEATHERED. ONCE ON GROUND, IT WAS DETERMINED THE ACCESSORY SECTION WAS NOT WORKING. SUSPECT EITHER A FAILED GSDR AU971353Gear · damaged(AUS) ENGINE ACCESSORY DRIVE GEARS HAD DAMAGED AND BROKEN TEETH.SDR 97ZZZX4149Adapter · brokenTACHOMETER DRIVE ADAPTER IS A 90-DEGREE DRIVE THAT REVERSES OUTPUT ROTATION AND ANGLE OF OUTPUT FROM ENGINE TO DRIVE TACHOMETER SHAFT. FOUND MOUNTING NUT AND FLANGE STILL ON ENGINE ACCESSORY CASE AND ADAPTER HANGING ON TACHOMETER DRIVESHAFT. FLANGE BROKEN OFSDR 97ZZZX3688Gear Spline · wornGOVERNOR WAS REMOVED DURING CRANKCASE REPAIR. GOVERNOR DRIVE GEAR TEETH WERE WORN AWAY 75 PERCENT. GOVERNOR DRIVEN GEAR INTERNAL SPLINES WERE WORN 25 PERCENT. FUEL PUMP SPLINES ON SAME GEAR WERE NOT WORN. CAMSHAFT WAS WORN .025 INCH ON DIAMETER THAT PN 6295SDR 97ZZZX3686Gear · wornGOVERNOR WAS REMOVED DURING CRANKCASE REPAIR. GOVERNOR DRIVE GEAR TEETH WERE WORN AWAY 75 PERCENT. GOVERNOR DRIVEN GEAR INTERNAL SPLINES WERE WORN 25 PERCENT. FUEL PUMP SPLINES ON SAME GEAR WERE NOT WORN. CAMSHAFT WAS WORN .025 INCH ON DIAMETER THAT PN 6295SDR 97ZZZX3400Bolt · brokenDURING ROUTINE INSPECTION TO C/W AD 96-09-10C (OIL PUMP IMPELLER INSP), THE ACCESSORY CASE WAS REMOVED FROM THE ENGINE. UPON INSP OF THE CRANKSHAFT IDLER GEARS, THE LT SIDE GEAR WOBBLED SIGNIFICANTLY. UPON REMOVAL OF THE IDLER GEAR, DETERMINED THE LOWER BOLTSDR AU970730Seal · loose(AUS) VACUUM PUMP DRIVE SHAFT SEAL LOOSE - FOUND WHEN PAD BLANKING PLATE REMOVED TO RECTIFY OIL LEAK - NO VACUUM PUMP FITTED TO THIS AIRCRAFTSDR 97ZZZX2805Adapter · bindingWHILE PERFORMING COMPRESSION TEST, DISCOVERED ENGINE WOULD LOCK-UP WHEN ROTATED BACKWARDS. TROUBLESHOOTING REVEALED STARTER ADAPTER WAS CAUSE OF PROBLEM. FURTHER INSPECTION OF ADAPTER SHOWED ACCUMULATION OF RUST AT STARTER MOUNTING PAD. THIS WAS SECOND NEWLYSDR 97ZZZX2622Housing Assy · leakingENGINE WAS REMOVED FROM AIRCRAFT DUE TO EXCESSIVE OIL LEAKAGE FROM ACCESSORY HOUSING ASSY. (THE ENTIRE AREA WHERE P/N 73818 GASKET IS LOCATED). EXCESSIVE OIL LEAKAGE WAS ALSO NOTED COMING FROM AFT CYLINDER BASE SEALS (PN 71481). OIL WAS COVERING TURBOCHARGESDR 98ZZZX1886Starter Gear · failedAFTER REVIEWING APRIL, 1998 ALERTS AL 43-16, ATA 8011, SUBMITTER REPORTS AN ADDITIONAL OCCURRENCE OF LOCK TAB FAILURE. ENGINE/AIRCRAFT WAS ON GROUND AND NO DAMAGE OCCURRED. DISASSEMBLY OF ENGINE REVEALED THAT LOCK TABS DID NOT COVER UP DOWELS AND ALLOWED THEMSDR AU970437Gear · damaged(AUS) ENGINE STARTER ADAPTER GEAR TEETH MISSING - CRANKCASE GEAR AND CAMSHAFT CLUSTER GEAR TEETH ALSO MISSING - DAMAGE ALSO TO LH AND RH MAGNETO ADAPTER PLATES AND LH AND RH MAGNETO DRIVE GEARSSDR 97ZZZX1712Adapter Gear · failedENGINE FAILED TO START. INSPECTION REVEALED FAILED STARTER ADAPTER. REMOVED ADAPTER AND FOUND DRIVE GEAR AND CRANKSHAFT GEAR DEFECTIVE. INSPECTION OF OIL FILTER REVEALED METAL CONTAMINATION OF ENGINE OIL SYSTEM. ENGINE TSOH: 1,067 HOURS. SUBMITTER RECOMMSDR 97ZZZX2030Spring · brokenRIGHT ENGINE WOULD NOT TURN OVER TO START. FOUND CLUTCH SPRING INSIDE THE STARTER ADAPTER BROKEN. REPLACED STARTER ADAPTER. NOTE: THIS ENGINE AND STARTER ADAPTER IS NOT REQUIRED TO BE INSPECTED BY TCM BULLETIN CSB94-4A.SDR AU970280Hub · sheared(AUS) ALTERNATOR DRIVE HUB SHEARED AT BOTH SHOULDERS - BROKEN PARTS ENTERED ENGINE OIL SYSTEM
Back to JASC 8540