JASC 8550

Service difficulty reports · 669

Reports filed under 8550 · Reciprocating Engine Oil System, 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 = '8550'
  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.

SDR 97031300233Filter · burstOIL FILTER BURST AT START-UP. GASKET FORCED FROM GROOVE. ENGINE LOST ALL OIL. FILTER 'DOMED OUT' AT BOTH ENDS. ALL OIL PASSAGEWAYS IN ENGINE AND OIL COOLER OK. PRESSURE RELIEF VALVE IN ENGINE OK. SUSPECT FILTER BYPASS.Feb 19, 1997 · N7989 · Amtr STARDUSTR300SDR CA970219007Dipstick · broken(CAN) ON POST FLIGHT INSPECTION AN OIL LEAK WAS FOUND. INVESTIGATION FOUND THE OIL LEAK WAS A RESULT OF A BROKEN OIL DIP STICK. THE ROD HAD FALLEN OUT OF THE HANDLE DUE TO A MISSING PIN.Feb 9, 1997 · Piper PA31SDR 97ZZZX785Cover Assy · leakTHE COVER TO OIL PUMP IS SEALED WITH GASKET CEMENT (FORM-A-GASKET PERMATEX) AND A NR 50 SILK THREAD. THE COVER WAS NOT PROPERLY INSTALLED AND TORQUED CAUSING IT TO LEAK OIL WHEN THE SEAL FAILED AFTER A TWO HOUR FLIGHT HAD LEAKED 3 QTS OIL.Feb 3, 1997 · N6669X · Beech 58TCSDR 98ZZZX3266Seal · failedWHILE IN CRUISE AT FL 250, PROPELLER RPM WAS TO 1200 AND OIL PRESSURE TO ZERO. ENGINE WAS FEATHERED AND SHUT DOWN AND A SAFE LANDING WAS MADE. INVESTIGATION REVEALED PROPELLER SHAFT SEAL HAD COME LOOSE AND WAS LOOSE ON SHAFT. SUSPECT BREATHER SYSTEM HAD FROJan 27, 1997 · N134DE · Piper PA31P350SDR 97ZZZX603Line · failedON A FLIGHT FROM FBXS TO ARCTIC VILLAGE, THE PILOT LOST MANIFOLD PRESSURE AND OIL PRESSURE. THE PILOT THEN SHUT DOWN THE LEFT ENGINE IN-FLIGHT AND LANDED AT ARCTIC VILLAGE. AFTER LANDING, IT WAS DETERMINED THE OIL LINE FROM THE TURBO WASTEGATE WAS BROKEN BEHJan 23, 1997 · N101LJ · Piper PA31310SDR CA970128005Shaft · worn keyway(CAN) DURING COMPLIANCE WITH AD 96-09-10 IT WAS DISCOVERED THE DRIVE GEAR AND DRIVE SHAFT CONTAINED A KEYWAY. THE KEYWAY AND DRIVE GEAR WERE WORN APPROXIMATELY 0.060". THIS KEYWAY SHOULD HAVE BEEN REMOVED BY AD 75-08-09, BUT THIS ENGINE, BY SERIAL NUMBER, IS NJan 22, 1997 · Gulstm 112SDR 97ZZZX1101Adapter · leakPILOT REPORTED LOW OIL PRESSURE IN-FLIGHT. UPON INSPECTION, FOUND OIL LEAKING FROM OIL FILTER ADAPTER. REMOVED ADAPTER, INSTALLED NEW O-RING AND REINSTALLED. NO FURTHER LEAKS FOUND.Jan 22, 1997 · N4853N · Cessna 182QSDR 97ZZZX820Pick Up · pluggedPILOT REPORTED THE RT ENGINE OIL PRESSURE WAS HIGH ON THE GROUND NEAR RED LINE, BUT WOULD FALL IN PRESSURE AT ALTITUDE, THE HIGHER THE ALTITUDE, THE LOWER THE OIL PRESSURE WOULD FALL REACHING BOTTOM RED LINE AT 12,000 FEET. THE OIL PRESSURE SPRING WAS REPLACEJan 18, 1997 · N307FM · Cessna 421CSDR AU970078Bushing · broken(AUS) ENGINE OIL PUMP DRIVEN GEAR BRONZE BUSH BROKEN - AIRCRAFT IS REGISTERED IN PNG AS P2-MFVJan 13, 1997SDR CA970114019Valve Drain · leaking(CAN) OIL LEAK ON #2 ENGINE FOLLOWING FLIGHT. INSPECTION FOUND THE OIL DRAIN COCK LEAKING. OIL SEAL APPEARED AGED AND HARDENED. OIL SEAL REPLACED AND DRAIN COCK CLEANED AND REPLACED.Jan 7, 1997 · Piper PA31350SDR CA970114001Oil Filter · collapsed(CAN) DURING OIL FILTER REPLACEMENT, THE OIL FILTER WAS FOUND COLLAPSED. COLD WEATHER OPERATION IS THE SUSPECTED CAUSE. LYCOMING SERVICE BULLETIN #1442 COMPLIED WITH TO PREVENT REOCCURRENCE.Jan 5, 1997 · Piper PA31350SDR 97ZZZX629Cover Assy · leakingPILOT COMPLAINING OF OIL LEAK. FOUND OIL PUMP LEAKING FROM CASTING SCAR IN UNIT.Jan 1, 1997 · N3093W · Beech 58SDR 97ZZZX273Cover Assy · leakingOIL PUMP COVER IMPROPERLY INSTALLED BY OVERHAULER CAUSING A SERIOUS LEAK. RE-SEALED COVER PER TCM O/H MANUAL. FIXED THE PROBLEM.Dec 23, 1996 · N26150 · Cessna 402CSDR 97ZZZX272Spring Seat · missingINSTALLED NEWLY OVERHAULED ENGINE AND DURING PRE-OILING COULD NOT GET OIL PRESSURE. FOUND THAT SPRING SEAT P/N 63153 WAS MISSING FROM OIL PRESSURE RELIEF HOUSING. INSTALLED THE MISSING PART, FIXED THE PROBLEM.Dec 23, 1996 · N26150 · Cessna 402CSDR 97ZZZX271Plunger · fod malfunctionMECHANIC NOTICED THAT OIL PRESSURE DROPPED TO ZERO WHEN THROTTLE WAS RETARDED. FOUND 3 PIECES OF SAFETY WIRE STUCK UNDER OIL PRESSURE RELIEF VALVE. REMOVED THE WIRE AND OPS CHECKED GOOD.Dec 23, 1996 · N26150 · Cessna 402CSDR 97ZZZX13Sump · crackedTHIS SUMP WAS INSTALLED ON AN ENGINE THAT CAME FROM LYCOMING AS A FACTORY OVERHAUL. THERE WOULD BE A SMALL PUDDLE OF OIL UNDER THE ACFT AFTER IT SAT IDLE FOR A FEW DAYS, BUT DURING OPERATION, NO APPRECIABLE AMOUNT WOULD SHOW UP ON IT. CRACK WAS LOCATED WITH Dec 18, 1996 · N8339Z · Piper PA32301TSDR 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.Dec 12, 1996 · Bnorm BN2A26SDR 97ZZZX364Separator · failedENGINE OIL PUMPING OVERBOARD. FOUND OIL AIR SEPARATOR INTERNAL SCREEN (SMALL) FAILED AND WAS BLOCKING OIL RETURN TO CRANKCASE. ENGINE DAMAGE AT THIS TIME UNKNOWN. SEPARATOR INSTALLED 411 HRS AGO NEW. ONLY SERVICES WET VACUUM PUMP. WENT TO DRY PUMP.Dec 1, 1996 · N726RT · Cessna 421CSDR 97ZZZX15Filler Tube · crackedPLASTIC FILLER TUBE CRACKED AT TOP WHERE DIPSTICK SNAPS IN PLACE CAUSING OIL LEAK. SUSPECT CAUSE OF PROBLEM: UNIT MADE OF PLASTIC. SUBMITTER STATED SHOULD BE MADE OF CAST OR MALLEABLE MATERIAL.Dec 1, 1996 · N949SS · Piper PA31350SDR 96ZZZX5876Gasket · deterioratedOIL SUMP GASKET DETERIORATED AND TURNED TO MUSH LIKE SUBSTANCE CAUSIING GASKET INGESTION AND LOSS OF GASKET SEAL AT OIL PICK UP GALLEY CAUSING LOW OIL PRESSURE. OIL PUMP CAVITATED AND SUCKED AIR INSTEAD OF OIL.Nov 12, 1996 · N3626C · Cessna R182SDR 96ZZZX5659Adapter Assy · wornBYPASS PLUG CAME OUT OF HOUSING. FOUND WORN PLUG AND DAMAGED HOUSING. PLUG IS STAKED IN IF BYPASS VALVE IS NOT USED. FOUND METAL IN OIL FILTER AT PREVIOUS OIL CHANGE 10 HRS PRIOR AND AT THIS OIL CHANGE. SUBMITTER STATED MFG NEEDS BETTER WAY TO SECURE PLUG.Nov 1, 1996 · N758RV · Cessna R172KSDR 96ZZZX5954Pump · washer wornIN C/W AEROSTAR SB600-131 INSPECTION OF TURBO OIL SCAVENGE PUMP, FOUND WASHER UNDER RETAINING RING OF SCAVENGE PUMP EMPELLER WORN AWAY LEAVING RING TO FLOAT IN COUPLING AREA. SUBMITTER STATED THIS CONDITION APPARENTLY SHOULD NOT HAPPEN IF PROPER GARLOCK SEALOct 23, 1996 · N6905A · Piper PA60700PSDR 96ZZZX5803Tube · brokenDISASSEMBLING ENG FOR OVERHAUL FOUND THE OIL SUCTION TUBE WAS BROKEN IN 2 PLACES. TUBE WAS BROKE OFF FROM SCREEN AND ONE OF THE ATTACHING ANGLES WAS BROKEN BY BOLT HOLE. TT ENG 4306.44. SMOH 1448.84.Oct 18, 1996 · N192AA · Beech K35SDR 96ZZZX5485Pump · failedDURING OVERHAUL DISASSEMBLY OF OIL PUMP, DISCOVERED WOODRUFF KEY DRIVE SHAFT AND SINTERED IRON GEARS. AD 75-08-09 REQUIRES REMOVAL OF THIS STYLE, BUT THIS SERIAL NUMBER IS OUTSIDE OF THOSE SPECIFIED BY LYCOMING. AD 81-18-04 CALLS FOR REPLACEMENT AT 2,000 HRSOct 15, 1996 · N4232T · Piper PA28235SDR CA961011003Oil Sump · cracked(CAN) OIL LEAK AT OIL SUMP. RETORQUE OF SUMP BOLTS MADE LEAK WORSE. REMOVAL OF OIL SUMP REVEALED CRACK AT MOUNTING FLANGE. THE AIRCRAFT IS USED TO TOW GLIDERS OFF GRASS STRIP AND THIS NO DOUBT CONTRIBUTED TO THIS FAILURE.Sep 30, 1996 · Cessna 182ASDR 96ZZZX5003Filter · mismanufacturedDURING A ROUTINE OIL CHANGE, EXAMINATION OF THE OIL FILTER REVEALED THE RUBBER GASKET BETWEEN THE FILTER ELEMENT AND THE FILTER END HOUSING HAD SHIFTED, APPARENTLY DURING MANUFACTURE, AND COVERED APPROXIMATELY 75 PERCENT OF THE OIL IN HOLE AND 100 PERCENT OF TSep 16, 1996 · N782B · Beech 95C55SDR CA960930001Scavenge Pump · cracked(CAN) AFTER LANDING THE PILOT NOTICED A LARGE OIL LEAK ON #2 ENGINE. FURTHER INSPECTION REVEALED THE SCAVENGE PUMP HOUSING WAS CRACKED. A NEW PUMP WAS INSTALLED AND THE AIRCRAFT RETURNED TO SERVICE.Sep 6, 1996 · Cessna 340ASDR CA960909009Tube Drain · cracked(CAN) OIL LEAK WAS NOTED ON #2 CYLINDER ON INSPECTION. FLARE ON OIL RETURN TUBE FOUND TO BE CRACKED APPROXIMATELY 2/3 AROUND ITS CIRCUMFERENCE.Aug 23, 1996 · Cessna 177RGSDR CA961016002Oil Sump · cracked(CAN) DURING ANNUAL INSPECTION AN OIL LEAK REPORTED BY THE OWNER LED TO INSPECTION OF THE OIL SUMP. EIGHT SMALL CRACKS WERE FOUND FROM THE FORWARD DRAIN PLUG, ONLY TWO WERE LEAKING. THE CRACKS HAD ORIGINATED INSIDE THE SUMP AND WERE CAUSED BY CORROSION PITTINGAug 16, 1996 · Cessna 172SDR 96ZZZX4313Filter · leakingWHEN OIL FILTER WAS REMOVED, MECHANIC NOTICED THE CAN AREA OF THE FILTER TURNED, BUT THE ATTACH MOUNTING (CRIMPED FLANGE END BRACKET) STAYED STATIONARY.Aug 12, 1996 · N99604 · Cessna 172PSDR 96ZZZX4314Adapter · nut looseDURING COMPLIANCE OF AD 96-12-22, OIL FILTER ADAPTER INSPECTION, FOUND RETAINING NUT TORQUE LOOSE. REMOVAL OF OIL FILTER ADAPTER ASSY REVEALED BOTTOM THREAD OF ADAPTER ASSY CRACKED. THIS PART WAS INSTALLED NEW ON 6-6-95 DUE TO CRACKED THREADS DURING C/W CESSAug 9, 1996 · N35945 · Cessna U206FSDR CA960813002Gasket · torn(CAN) SHORTLY AFTER TAKEOFF THE PILOT NOTICED THE #1 ENGINE OIL QUANTITY GAUGE WAS DROPPING. THE AIRCRAFT RETURNED TO ITS POINT OF DEPARTURE. POST FLIGHT INSPECTION REVEALED THE PRESSURE OIL FILTER GASKET WAS MISSING A SECTION. THE GASKET WAS REPLACED AND THE Aug 4, 1996 · Cndair CL2151A10SDR 96ZZZX4403Line · chafedWHILE TROUBLESHOOTING AN ALTERNATOR PROBLEM, FOUND THE OIL RETURN LINE ON NR 1 CYLINDER HAD ALTERNATOR WIRE HARNESS TY-WRAP TO IT. REMOVED TY-WRAP TO INSPECT THE WIRE HARNESS, AND THE LINE WAS FOUND CHAFED MORE THAN 75 PERCENT THROUGH THE WALL THICKNESS. SUBAug 1, 1996 · N738WK · Cessna R182SDR 97ZZZX973Check Valve · chafedBOTH TURBO CHARGER OIL LINE CHECK VALVES OUTER SURFACE WORN THROUGH BY CLAMPS CAUSING SEVERE OIL LEAK (2 QUARTS AN HOUR).Jul 25, 1996 · N57195 · Mooney M20KSDR 97ZZZX972Check Valve · chafedBOTH TURBO CHARGER OIL LINE CHECK VALVES OUTER SURFACE WORN THROUGH BY CLAMPS CAUSING SEVERE OIL LEAK (2 QUARTS AN HOUR).Jul 25, 1996 · N57195 · Mooney M20KSDR CA960826086Housing · stripped(CAN) PILOT NOTED THE OIL TEMPERATURE HIGH AND ELECTED TO LAND. MAINTENANCE FOUND AN OIL LEAK AT THE "BANJO" FITTING AND TRIED TO VERIFY THE TORQUE BUT FOUND THE THREADS WERE STRIPPED.Jul 24, 1996 · Diamon DA20A1SDR AU961010Spring · wrong part(AUS) ENGINE OIL PRESSURE RELIEF VALVE SPRING WAS INCORRECT PART - CORRECT SPRING PNO 634150 - UNAPPROVED PART - ENGINE WAS A CONTINENTAL REBUILD ENGINE - SEE ALSO MDR 96/0726Jul 22, 1996SDR AU961007Seal · failed(AUS) ENGINE OIL FILTER ADAPTER SEAL SPLIT AND LEAKING - SUSPECT DUE TO DETERIORATION CAUSED BY OLD AGEJul 22, 1996 · Piper PA31350SDR CA961007008Chip Detector · broken(CAN) ON TAKEOFF OIL PRESSURE ON LEFT ENGINE STARTED DROPPING AND VISUAL INSPECTION NOTED OIL POURING FROM ENGINE COWLING. ENGINE SHUTDOWN AND AIRCRAFT RETURNED. CANNON PLUG ON CHIP DETECTOR WAS INSTALLED 180 DEGREES OUT AND WAS HITTING ON LOWER COWLING RIB.Jul 21, 1996 · Dhav DHC6100SDR 96ZZZX3862Elbow · failedELBOW P/N AN915-1D WAS INSTALLED IN THE OIL PRESSURE/HOBBS SWITCH SYSTEM OFF THE BACK OF THE ACCESSORY CASE. THE INSTALLATION OF THE HOBBS PRESSURE SWITCH WAS NOT DONE IAW THE MANUFACTURERS IPC. THE SWITCHES WERE NOT INSTALLED AND SUPPORTED CORRECTLY. AFTERJul 18, 1996 · N2606L · Piper PA38112SDR AU960961Spring · broken(AUS) ENGINE OIL FILTER ADAPTER PNO 1250921-1 BYPASS SPRING BROKEN INTOTHREE PIECES - VALVE CAP PNO 0756022-1 FOUND ON OIL PRESSURE RELIEF VALVE SEAT - FURTHER INSPECTION FOUND SPRINGS ON TWO OTHER AIRCRAFT BADLY WORNJul 12, 1996 · Cessna 210MSDR 96ZZZX3702Filter · defectiveOIL FILTER CUT OPEN AT OIL CHANGE. NOTICED INSIDE GASKET WAS CUT AND SLIGHTLY MISALIGNED. CLOSER LOOK REVEALED METAL PORTION WAS CUT APPROXIMATELY ONE INCH AND ONE INCH SLIVER ABOUT .0625 INCH THICK WAS STICKING INTO OIL OUTLET PATH. HAD THIS SLIVER COME LOJul 3, 1996 · N6648K · Beech 58PSDR 96ZZZX4293Dipstick · not installedGRR - RT OIL DIPSTICK LEFT OUT CAUSING OIL LEAK AND SMOKE. RETURNED TO GRR. WASHED DOWN, SERVICED OIL AND CONTINUED WITH FLIGHT.Jul 2, 1996 · N42HD · Piper PA31350SDR 96ZZZX3750Nipple · failedTHE RIGID PIPE NIPPLE THAT IS THREADED INTO ACCESSORY CASE BETWEEN MAGNETOS FAILED AT THE BOTTOM OF THE THREAD GROOVE FLUSH WITH THE ACCESSORY CASE. THIS ALLOWED RETURN OIL FROM THE WASTEGATE CONTROLLERS TO GO OVERBOARD. THE PILOT SAW THE OIL PRESSURE DROPPIJul 1, 1996 · N2522S · Cessna T337CSDR 96ZZZX4408Filter · brokenAFTER CUTTING OIL FILTER OPEN, THE MANUFACTURER'S ANTI-DRAIN BACK VALVE ROLLED EDGE WAS FOUND CRACKED APPROXIMATELY ONE-HALF WAY AROUND AND A PIECE, APPROXIMATELY 1 INCH LONG, HAD BROKEN OFF. BROKEN PIECES WERE FOUND AFTER OIL COOLER WAS REMOVED AND BACK-FLUSJun 25, 1996 · N94MA · Piper PA46310PSDR 96ZZZX3672Clamp · looseAFTER TAKEOFF, PILOT NOTICED OIL COMING OUT OF ENGINE COWLING. AFTER LANDING, FOUND OIL DIPSTICK COUPLING AND CLAMP BECAME LOOSE FROM ENGINE CASE NIPPLE. REINSTALLED COUPLING AND SECURED CLAMP. RECLAMPED DIP STICK HOUSING WITH SMALLER ADEL CLAMPS. WASHED EJun 24, 1996 · N924JD · Cessna TU206GSDR 96ZZZX3683Tube · hole chafedINSPECTION FOUND WIRING FOR ALTERNATOR MISROUTED, WORE HOLE IN OIL RUNBACK TUBE CAUSING OIL LEAK.Jun 1, 1996 · N69082 · Cessna 152SDR 96ZZZX3207Fill Tube · rustyTHE INSIDE OF THE OIL FILLER TUBE AND OIL CAP WERE RUSTED TO THE POINT OF FLAKES OF RUST BEING KNOCKED OFF OF THE SURFACE AND FALLING INTO THE CRANKCASE. SUBMITTER STATED THESE ASSEMBLIES SHOULD PROBABLY BE MADE OF STAINLESS STEEL. THEY ARE CADMIUM PLATED WHMay 29, 1996SDR 96ZZZX3085Screen · defectiveDURING SCHEDULED MAINTENANCE FOUND SCREW AND GASKET MATERIAL IN SUCTION SCREEN. REMOVED OIL SUMP/PAN, INSTALLED SCREW PER LYCOMING INSTRUCTIONS.May 21, 1996 · N63ND · Piper PA31350SDR 96ZZZX2960Cylinder · crackedPILOT EXPERIENCED POPPING, MISFIRING, AND POWER LOSS DURING TAKEOFF. AN UNSUCCESSFUL OFF AIRPORT LANDING MADE. AIRCRAFT FLIPPED OVER AND WAS SUBSTANTIALLY DAMAGED. INSPECTION REVEALED NR 8 CYLINDER CRACKED BETWEEN SPARK PLUG BOSSES AND DOWN TO BARREL ON BACMay 14, 1996 · N6620Q · Scwzer G164A
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