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 96ZZZX3057Filter Adapter · wrong connEXPERIENCED INCONSISTENT MANIFOLD PRESS & FUEL FLOWS. LOOKED AT SOURCE OF OIL TO WASTEGATE FROM OIL PUMP HSNG P/N 643716, & FND PORT USED SUPPLIED UNFILTERED OIL. OIL PUMP HSNG IS NEW P/N WHICH USES FULL FLOW OIL FILTER. NEW HSNG HAS, BELOW FILTER BASE, A 2May 13, 1996 · N2FOR · Cessna TU206GSDR AU960626Seal · failed(AUS) NO4 ENGINE OIL SYSTEM NOSE SCAVENGE SYSTEM PIPE UNION SEAL FAILED- LOSS OF ENGINE OILMay 7, 1996 · Doug C54ESDR 96ZZZX3321Fitting · failedOIL PRESSURE FITTING AT ENGINE TO GAUGE HAD BRASS FITTING AND THEN 90 DEGREE RESTRICTIVE FITTING. APPEARS TO HAVE BEEN TOO CLOSE TO MOUNT. BRASS FITTING BROKE FLUSH AT ACCESSORY CASE AND OIL PUMPED OUT OF ENGINE. BRASS FITTING APPEARED TO BE INCORRECT PART May 3, 1996 · N28462 · Gulstm AA5BSDR 96ZZZX3371Engine · excess sludgeENGINE WAS DISASSEMBLED FOR MAJOR OVERHAUL. FOUND EXCESSIVE SLUDGE BUILD-UP IN CRANKSHAFT AND OIL SUMP. SLUDGE BUILD-UP IN OIL SUMP HAD IMPACTED ALL P/U TUBE SCREENS TO THE POINT OF 80 PERCENT RESTRICTION. THE OIL DRAIN IS FORWARD OF THE OIL P/U TUBE, SO WHApr 26, 1996 · N3869A · Beech A36SDR 96ZZZX2082Tube Assy · failedDURING FLIGHT, OIL WAS NOTICED ON THE RIGHT NACELLE, THE AIRCRAFT LANDED SAFELY AND THE PROPELLER WAS FEATHERED. INVESTIGATION REVEALED TUBE ASSEMBLY FROM THE CRANKCASE TO THE FUEL MANIFOLD HAD BROKEN FROM THE SOLDER JOINT CLOSEST TO THE FUEL MANIFOLD.Apr 3, 1996 · N6867L · Cessna 421CSDR 96ZZZX2389Engine · failedENGINE 235.3 SMOH, 7.6 HRS AFTER NR 4 CYLINDER REMOVED FOR REPAIR. PHILLIPS XC OIL BEING USED. AV BLEND PUT IN ENGINE AFTER CYLINDER WAS REPAIRED. IN-FLIGHT, OIL PRESSURE STARTED TO DECREASE. LANDING MADE OK. AT IDLE, OIL PRESSURE DROPPED TO ZERO PSI, TOMar 19, 1996SDR 96ZZZX2055Sump Plug · missingAIRCRAFT WAS FLYING WHEN RT ENGINE LOST ALL OIL PRESSURE. ENGINE WAS SECURED. MAINTENANCE DISCOVERED MISSING SUMP PLUG ON OIL SUMP. SUBMITTER STATED UNIT WAS NOT SECURED AT FACTORY. CHECKED LT ENGINE, PLUG WAS NOT SAFETIED. SECURED PLUG WITH SAFETY WIRE AMar 18, 1996 · N2127D · Piper PA44180SDR AU960726Spring · wrong part(AUS) ENGINE OIL PRESSURE RELIEF VALVE SPRING WAS AN INCORRECT PART - FOUND DURING POST INSTALLATION GROUND RUN - ENGINE WAS A FACTORY REMANUFACTURED ENGINE - PERSONNEL/MAINTENANCE ERROR - UNAPPROVED PARTMar 17, 1996 · Cessna 402BSDR 96ZZZX3623Separator Screen · froze upBIL - ON TAKEOFF (AIRBORNE), OIL PRESSURE AT RED LINE, FUEL FLOW ERRATIC, MANIFOLD PRESS VERY SENSITIVE AND ERRATIC, FUEL PRESS EXCEEDED RED LINE. AIRCRAFT RETURNED AND LANDED UNEVENTFULLY. ALL TEMPS IN GREEN AT TAKEOFF. BOTH ENGINES NOTED COVERED WITH OIL,Mar 6, 1996 · N2718Y · Cessna 402CSDR 96ZZZX1545Oil Filter · wrong partDURING AN ANNUAL INSPECTION, NOTED A CHAMPION CH 48103 (.8125 INCH BY 16 INCH FEMALE THREAD) OIL FILTER WAS INSTALLED. THE CORRECT OIL FILTER FOR THIS INSTALLATION SHOULD HAVE BEEN A CH-48110 (.75 INCH BY 16 INCH MALE THREAD). IT IS BELIEVED THAT THE THREADEDMar 5, 1996 · N7824K · Cessna 180JSDR 96ZZZX1524Oil Filter · leakingWHILE AIRCRAFT IN-FLIGHT, PILOT REPORTED OIL LEAKING FROM LEFT ENGINE. DURING INSPECTION OF LEFT ENGINE, FOUND OIL FILTER AND SURROUNDING AREA OIL SOAKED. AFTER CLEANING AND RUNNING ENGINE FOUND OIL LEAKING FROM HEXHEAD OF OIL FILTER (CH48108). REMOVED FILTMar 1, 1996 · N401GB · Cessna 401BSDR 96ZZZX1267Oil Filter · misinstalledDURING FIRST ROUTINE ENGINE OIL AND FILTER CHANGE, THE OIL FILTER WAS EXTREMELY DIFFICULT TO REMOVE FROM THE ADAPTER ASSY. SUBMITTER SUSPECTS CAUSE FOR PROBLEM: NO LUBRICATION AT INSTALLATION AS ENGINE WAS READIED FOR SERVICE. SUGGEST FOLLOW RECOMMENDED PROFeb 28, 1996 · N123ZM · Beech 58SDR AU960329Stud · separated(AUS) LH ENGINE DRIVEN OIL PUMP HOUSING STUD SEPARATED CAUSING OIL LEAK- STUD IS NOT USED ON THIS INSTALLATIONFeb 27, 1996 · Cessna 414SDR 96ZZZX2399Filter Screen · splitDURING ANNUAL, OIL PRESSURE SCREEN WAS REMOVED AND CHECKED FOR METAL, ETC. AFTER SCREEN WAS CLEANED IN PARTS WASHER, IT WAS NOTED THE SOLDERED SEAM OF THE INNER FINE MESH SCREEN WAS SPLIT. ON CLOSER INSPECTION, THE OUTER SCREEN SHOWED APPROXIMATELY FOUR STRAFeb 25, 1996 · N7821V · Mooney M20CSDR 96ZZZX1047Hose · chafedWASTEGATE OIL RETURN HOSE CHAFED THROUGH AT FORWARD RIGHT ENGINE MOUNT. SUBMITTER STATES CORRECTIVE ACTION - CLAMP HOSE OFF FOR PROPER CLEARANCE.Feb 23, 1996 · N666SW · Cessna T210MSDR 96ZZZX1083Pump · misoverhauledON THE 6TH RUN FOR GROUND ADJUSTMENTS, OIL PRESSURE DROPPED TO 30 THEN 10 PSI AND ENGINE SECURED. REPEATED ATTEMPTS TO PRIME OIL SYSTEM, COULD NOT GET OIL PRESSURE UP. PUMP WAS REMOVED AND INSPECTED WITH NO OBVIOUS DEFECTS. OIL PAN WAS REMOVED AND PICK-UP TFeb 17, 1996 · N65093 · Cessna T210HSDR CA960222007Elbow · cracked(CAN) SLIGHT OIL LEAK NOTED AT #1 CYLINDER. FOUND OIL RETURN FITTING ON CYLINDER HEAD CRACKED AROUND 90 PERCENT OF THE CIRCUMFERENCE AT PIPE THREADS FLUSH WITH BOSS.Feb 7, 1996 · Cessna 177RGSDR 96ZZZX873Filter · ring brokenDURING INSPECTION OF OIL FILTER, THE METAL RETAINING RING BETWEEN FILTER AND RUBBER GASKET (ALL PARTS INTERNAL) WAS FOUND BROKEN WITH ONE-THIRD OF THE RING MISSING. THE REMAINING PARTS OF THE RING WERE FOUND IN FILTER, ALL PIECES. FOUND ON TWO FILTERS.Jan 23, 1996 · N3LN · Cessna 340CESSNASDR AU960080Filter · contam-metal(AUS) ENGINE OIL FILTER CONTAINED HIGHER THAN NORMAL LEVELS OF FERROUS METAL - SUSPECT ALTERNATOR BEARING FAILUREJan 12, 1996 · Cessna 404CESSNASDR AU960021Nozzle · failed(AUS) ENGINE OIL SYSTEM CONTAMINATED BY METAL - NO3 CYLINDER OIL SQUIRT NOZZLE MISSING - THE NOZZLE BALL WAS FOUND IN THE CRANKCASE ANDTHE REMAINDER OF THE NOZZLE WAS FOUND IN THE SUMP FOLLOWING REMOVAL - INVESTIGATION FOUND THAT THE NOZZLE HAD BEEN CRUSHED BJan 9, 1996 · Piper PA36285SDR 96ZZZX472Oil Separator · frozeAIR/OIL SEPARATOR OUTLET FROZE SHUT. ENGINE PUMPED OIL OVERBOARD. ENGINE FAILED, THREW ROD THROUGH CASE.Jan 8, 1996 · N409EX · Cessna 404CESSNASDR 96ZZZX371Line · loosePILOT REPORTED SMOKE IN COCKPIT AFTER APPLYING CABIN HEAT. REMOVED COWLING AND INSPECTED MUFFLER ASSEMBLY. SMALL OIL STAIN ON MUFFLER SHROWD. FOUND OIL RETURN LINES WERE SLIGHTLY 'WET' WITH OIL. TIGHTENED OIL RETURN LINE CLAMPS. WASHED DOWN ENGINE AND MUFDec 22, 1995 · N738UD · Cessna 172NSDR CA960103007Oil Filter · collapsed(CAN)DURING INSPECTION THE ENGINE OIL FILTER WAS FOUND COLLAPSED ON ONE SIDE. THIS WAS DISCOVERED WHEN THE OUTER CASE/CAN WAS CUT OPEN FOR INSPECTION. THE FILTER WAS CODED FO3F13-1.Dec 14, 1995 · Piper PA31350SDR 96ZZZX1543Adapter · oil leakUPON INSPECTION OF OIL FILTER ADAPTER IAW CESSNA SEB 93-1-R1, FOUND FILTER ADAPTER THREADS HAD PIECES MISSING. INSPECTION WAS PROMPTED BY LOOSE RETAINING NUT AND OIL LEAK. THREADS ON THE ENGINE WERE INTACT. REPLACED FILTER ASSY WITH NEW CESSNA ASSY.Dec 13, 1995 · N711TM · Cessna 210LSDR CA960306004Breather · blocked(CAN) DURING CRUISE, PILOT NOTICED ROUGHNESS IN THE RIGHT ENGINE AND HE REDUCED POWER. THE PILOT ELECTED TO SHUT THE ENGINE DOWN AND RETURN TO ORIGIN, AS HE DID WITHOUT FURTHER INCIDENT. INSPECTION REVEALED THAT THE ENGINE BREATHER ICE CONTROL APERTURE HAD FRODec 5, 1995SDR 96ZZZX71Quick Drain · failedCOMPONENTS FELL OUT OF THE OIL QUICK-DRAIN. SUBMITTER SUGGESTS RE-DESIGN SO IT CANNOT HAPPEN AGAIN.Dec 1, 1995 · N66172 · Cessna 150MSDR CA960103533Woodruff Key · broken(CAN)THE OWNER REPORTED THAT #5 CYLINDER PISTON ROD MOVED ABNORMALLY AND THERE WAS A LOT OF METAL IN THE OIL FILTER. INTERNAL INSPECTION REVEALED THE ENGINE HAD LACKED OIL BECAUSE THE OIL PUMP DRIVE KEY (W OODRUFF KEY) HAD BROKEN. THE OIL PUMP AND THE ENGINE WNov 24, 1995SDR 95ZZZX6613Pump · failedENGINE LOST OIL PRESSURE ON DEPARTURE AND RETURNED TO THE AIRPORT. NO INCIDENT OCCURRED. ENGINE WOULD NOT MAKE FULL RPM. PROPELLER STOPPED WHEN POWER REDUCED TO IDLE. SUBMITTER STATED ENGINE WAS OPERATED MOST OF ITS LIFE WITHOUT AN OIL FILTER. RECOMMEND MNov 13, 1995 · N21329 · Cessna 172MSDR 95ZZZX6406Oil Pump · bushing defectDURING MAJOR OVERHAUL, REAR CASE/OIL PUMP ASSY AND GEARS REWORKED. ENGINE HAD GOOD OIL PRESSURE, BUT AT OIL CHANGE, PUMP WOULD NOT PRIME ITSELF. DISSASSEMBLY REVEALED PUMP BUSHINGS WERE .004 INCH OUT OF CENTER AND ALLOWED TOO MUCH CLEARANCE ON ONE SIDE.Oct 31, 1995 · N6079A · Cessna 172SDR 95ZZZX5934Filter Adapter · threads strippedOIL FITLER ADAPTER SEPARATED FROM ENGINE AT CRANKCASE COVER MOUNTING BOSS ALLOWING OIL SUPPLY TO BE EXHAUSTED. INVESTIGATION REVEALED 80 PERCENT OF THE MOUNTING THREADS CONTAINED IN THIS BOSS WERE STRIPPED. HIGH TEMP RTV WAS FOUND ON THESE THREADS AS WELL ASAug 26, 1995 · N1439V · Cessna R172KSDR 95ZZZX4564Oil Tube · extender crackedTHE EXTENDER CRACKED AT BOTTOM FLANGE AND THE TUBE FELL OFF THE ENGINE CAUSING OIL TO COME OUT OF ENGINE. SUBMITTER SUGGESTS LARGER WELDS WOULD HELP HOLD IT TOGETHER BETTER.Aug 19, 1995 · N4975U · Cessna U206GSDR 95ZZZX6015Oil Pump · seizedAIRCRAFT ON CLIMB-OUT AT 4,500 FEET OIL PUMP SEIZED AND SEVERAL ACCESSORY GEARS SHEARED INCLUDING CRANK GEAR CAUSING ENGINE TO FAIL. AIRCRAFT LANDED, SINGLE ENGINE. TIME ON ENGINE, 1,139 HOURS SINCE MAJOR OVERAHUL.Aug 8, 1995 · N61367 · Piper PA31350SDR 95ZZZX4306Line · failedPILOT REPORTED OIL LOSS FROM RIGHT ENGINE COMPARTMENT. INSPECTION REVEALED THE METAL LINE CONNECTED TO THE PROPELLER GOVERNOR HAD SEPARATED JUST BELOW THE FLARE. A NEW LINE WAS INSTALLED. REASON FOR FAILURE IS UNKNOWN.Jul 21, 1995 · N365C · Beech 58SDR 95ZZZX3643Hose · looseAN OIL RETURN HOSE FROM THE TURBOS CAME LOOSE SPRAYING OIL ONTO THE FIRE DETECTION PROBES. THIS CAUSED THE FIRE WARNING TO ACTIVATE, AND THE PILOT WENT INTO THE CLOSEST AIRPORT. THERE WAS NO DEFECT FOUND WITH THE HOSE OR 'AN' FITTING IT ATTACHED TO. THE HOSJul 11, 1995 · N601GA · Piper PA60601PSDR 95ZZZX3998Filter · gasket displacedOIL FILTER INTERNAL GASKET WAS OUT OF PLACE AND COVERING INLET PASSAGE OF FILLER BODY. APPEARS TO BE MANUFACTURE DEFECT. SUBMITTER ADVISES A CLOSER INSPECTION OF OIL FILTER PRIOR TO INSTALLATION TO INSURE GASKET IS NOT BLOCKING INLET HOLE.Jul 1, 1995 · N803AN · Cessna T207ASDR 95ZZZX3661Filter · failedAFTER CUTTING OPEN FILTER FOR INSPECTION, DISCOVERED THE OUTLET SEAL DEFORMED AND PARTIALLY DISLODGED FROM SEALING LIP (LEFT ENGINE).Jun 28, 1995 · N4116G · Cessna 340ASDR 95ZZZX3660Filter · failedAFTER CUTTING OPEN FILTER FOR INSPECTION, DISCOVERED THE OUTLET END FATIGUED WITH 2 SECTIONS OF THE METAL LIP LODGED DOWN INSIDE THE FILTER. THE REMAINING PORTION OF THE LIP WAS SPRINGY AND READY TO RELEASE (RIGHT ENGINE).Jun 28, 1995 · N4116G · Cessna 340ASDR 95ZZZX3948Oil Tube · brokenRIGHT ENGINE OIL LEAK. IN-FLIGHT SHUT DOWN. FOUND OIL TUBE FOR NR 4 CYLINDER EXHAUST VALVE BROKEN. SUSPECT CAUSE - A) OVERTORQUED AT INSTALLATION. B) BUMPED WITH TOOL. C) FATIGUE.Jun 23, 1995 · N6033C · Beech B60SDR 95ZZZX3474Adapter · thread damageDURING COMPLIANCE WITH SEB 92-1R1 (CESSNA). ADAPTER WAS REMOVED FROM PUMP HOUSING AND THREAD DAMAGE WAS EVIDENT. 3OX MAGNIFICATION OF DAMAGE APPEARED TO BE A MANUFACTURING DEFECT. NO DAMAGE DUE TO MISUSE IS SUSPECTED. SEB 93-1R1 IS TO CHECK THREAD DAMAGE DJun 20, 1995 · N9629M · Cessna T207ASDR 95ZZZX3678Pump · gear failedSCAVAGE PUMP DRIVE GEAR FRACTURED IN 4 LOCATIONS FOLLOWING HEAVY WEAR OF TOOTH PROFILE. TOTAL ENGINE FAILURE FOLLOWED. AD 89-24-01R1 AND SB M90-6 PERTAIN TO THIS PUMP, BUT WERE NOT DUE YET.Jun 18, 1995 · N25LR · Beech A36TCSDR 95ZZZX3244Idle Shaft · wornOIL PUMP WOULD LOSE PRIME AND HAVE NO OIL PRESSURE AFTER START-UP. OIL PUMP IDLE SHAFT EXTREMELY WORN AND BOTH GEARS WORN. WORE THE PUMP HOUSING CAUSING AN OIL SHORTAGE TO THE ENGINE WITH BEARING AND CASE DAMAGE. THE PUMP HOUSING AND SHAFTS WERE TIGHT AND CJun 13, 1995 · N8168Z · Piper PA28201TSDR 95ZZZX3034Adapter Assy · wornDURING CRUISE FLIGHT, THE ENGINE BEGAN TO LOSE OIL PRESSURE. THE PILOT DECLARED AN EMERGENCY AND LANDED IN A FIELD WITH MINIMAL DAMAGE. THE ENGINE HAD BEEN EQUIPPED WITH FULL FLOW OIL FILTER KIT INSTALLED UNDER STC 3262 WE. THE THREADS ON THE ADAPTER ASSEMBJun 7, 1995 · N8378D · Beech J35SDR 95ZZZX2966Engine · oil sludgeDURING TEAR DOWN INSPECTION OF ENGINE AFTER PROP STRIKE, THICK OIL SLUDGE DEPOSITS WERE FOUND IN THE CRANKSHAFT AND THE OIL PAN. TWO ACCESSORY HOUSING GEARS HAD TO BE REPLACED DUE TO PITTING AND WEAR. RECORDS SHOW THE ENGINE HAD BEEN RUN USING MOBILE AV-1 OIJun 6, 1995 · N4994K · Cessna P210NSDR 95ZZZX3010Gear · defectiveREMOVED ACCESSORY CASE TO CHECK COMPLIANCE WITH AD 81-18-04 OIL PUMP GEARS. LOG BOOKS NON-SPECIFIC. FOUND OIL PUMP DRIVING GEAR AND SHAFT WITH SHEARED WOODRUFF KEY. OIL PUMP ASSEMBLY ON VERGE OF COMPLETE FAILURE. PUMP HOUSING BADLY DAMAGED. ENGINE MANUFACJun 1, 1995 · N5209R · Cessna 172MSDR 95ZZZX3009Shaft · defectiveREMOVED ACCESSORY CASE TO CHECK COMPLIANCE WITH AD 81-18-04 OIL PUMP GEARS. LOG BOOKS NON-SPECIFIC. FOUND OIL PUMP DRIVING GEAR AND SHAFT WITH SHEARED WOODRUFF KEY. OIL PUMP ASSEMBLY ON VERGE OF COMPLETE FAILURE. PUMP HOUSING BADLY DAMAGED. ENGINE MANUFACJun 1, 1995 · N5209R · Cessna 172MSDR 95ZZZX2729Pan · crackedHOLE HAD BROKEN OUT IN CENTER OF PAN. PAN IS FORMED FROM .032. NOTIFIED BEECH OF PROBLEM. INSTALLED A NEW PART. BEECH INDICATED THEY MAY USE .061 MATERIAL SOMETIME IN THE FUTURE.May 30, 1995 · N8285C · Beech A36SDR 95ZZZX3526Oil Filter · defectiveRUBBER SEAL FOUND PROTRUDING FROM CENTER HOLE WHEN FILTER WAS REMOVED:May 24, 1995 · N91WM · Beech 58SDR 95ZZZX2969Diversion Plate · brokenAFTER REMOVAL OF OIL PAN AND ACCESSORY SECTION TO COMPLY WITH 'AD' OF OIL PUMP ASSY, FOUND INVERTED FLIGHT OIL DIVERATING PAN (PART UNK) CRACKED AND BROKEN FROM FLEX STRESS, SEVERAL PIECES BROKEN WERE FOUND LAYING IN OIL PAN. THIS SYSTEM INSTALLED AT CHAMP FAMay 18, 1995 · N5163T · Bbavia 7KCABSDR 95ZZZX3218Baffle · damagedAT ENGINE OIL CHANGE, A RIVET HEAD WAS FOUND IN THE OIL SUCTION SCREEN. LYCOMING SB NR 489A PERTAINS TO THIS SUBJECT. RECEIVED APPROVAL FROM LYCOMING TO MODIFY A NEW OIL SUMP BAFFLE, THEN REMOVED AND REPLACED DAMAGED BAFFLE. THE ENGINE WAS RETURNED TO SERVICMay 11, 1995 · N727K · Piper PA46350PSDR 95ZZZX2736Valve Sleeve · brokenFOUND LARGE ALUMINUM PARTS IN SUCTION SCREEN. THEY APPEARED BROKEN AND UNMARRED, I,E,; HAD NOT BEEN GROUND UP IN A GEAR TRAIN. FURTHER INVESTIGATION USING LYCOMING OVERHAUL MANUAL NR 60294-7, PAGE 7-2, IDENTIFIED POSS END ITEM, DISASSEMBLED OIL PSI RELIEF VAMay 11, 1995 · N7851W · Piper PA28180
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