JASC 7921

Service difficulty reports · 982

Reports filed under 7921 · Engine Oil Cooler, 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 = '7921'
  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 WWMA9700054Oil Cooler · defectiveCREW REPORTED, THE RIGHT ENGINE SMOKES SEVERELY ON ENGINE SHUTDOWN. MAINTENANCE REPLACED THE OIL COOLER AND PERFORMED HIGH POWER ENGINE RUNS, NO SMOKE NOTED.Apr 11, 1997 · N297AE · Saab 340BSDR 97ZZZX1925Cooler · failedAIRCRAFT WAS IN DOWN WIND FOR LANDING WHEN STUDENT NOTICED 'WET' GEAR LEG AND WHEEL. UPON EXAMINATION, FOUND OIL COOLER SUFFERED INTERNAL FAILURE, LOSS OF SUBSTANTIAL OIL. SUBMITTER STATED ENGINE FAILURE WOULD HAVE BEEN IMMINANT. OUTSIDE TEMP 58 DEGREES.Apr 8, 1997 · N1958Q · Cessna 177RGSDR CKSA97074Oil Cooler · failedON CLIMBOUT, NR 1 ENGINE OIL TEMPERATURE RAPIDLY ROSE TO 150 DEGREES CELSIUS. PERFORMED ENGINE SHUTDOWN AT 1940Z. OIL PRESSURE DROPPED TO ZERO WITH WINDMILLING N2 AT 36 PERCENT AND N1 AT 18 PERCENT UNTIL 2012Z. NOTE: DUMPED 45,000 POUNDS OF FUEL. DUMPING SMar 18, 1997 · N801CK · Doug DC855SDR 97ZZZX1916Oil Cooler · malfunctionedWHILE AT CRUISE FL 210 OAT 45 DEGREES FAHRENHEIT, LEFT ENGINE OIL TEMP WENT UP WHILE OIL PRESSURE WENT DOWN, BOTH STILL IN 'GREEN'. AFTER PRECAUTIONARY LANDING AND INSPECTION, FURTHER FLIGHT WAS NORMAL. APPEARS OIL COOLER HAD CONGEALED DUE TO COLD WEATHER.Mar 1, 1997 · N18TC · Cessna 421CSDR 97ZZZX2719Oil Cooler · damagedALTERNATOR BELT P/N 3VX375 BROKE DAMAGING THE OIL COOLER P/N 20008A CAUSING A LOSS IN OIL PRESSURE.Feb 27, 1997 · N444PH · Robsin R22BETASDR RAIA970227Actuator · failedSTL - FLT 7508 - LEFT OIL COOLER FLAP STUCK OPEN. MAINTENANCE REPLACED OIL COOLER FLAP ACTUATOR. (M)Feb 23, 1997 · N428AM · Bag JETSTM3201SDR AU970242O-Ring · deteriorated(AUS) ENGINE OIL COOLER TO PRESSURE LINE `O'- RING SEAL DETERIORATED AND LEAKINGFeb 10, 1997 · Piper PA18150SDR PCAA9700340Oil Cooler · crackedDURING CRUISE FLIGHT TO BOS, NR 2 ENGINE OIL PRESSURE WAS OBSERVED FLUCTUATING BETWEEN 40 AND 55 PSI. A/C DIVERTED INTO BGM AND LANDED WITHOUT INCIDENT. INSPECTED AND FOUND NR 2 ENGINE OIL COOLER CRACKED AND LEAKING. REMOVED AND REPLACED OIL COOLER, SERVICEJan 10, 1997 · N820EX · Dhav DHC8102SDR CA970114016Oil Cooler · cracked core(CAN) ON TAKEOFF ROLL, THE CREW NOTED A LOW OIL PRESSURE ON #1 ENGINE. AIRCRAFT RETURNED TO BLOCKS. OIL COOLER CORE FOUND CRACKED AND LEAKING.Dec 21, 1996 · Aerosp ATR42300SDR CA970311054Oil Cooler · leaking(CAN) LEAKING FUEL FROM UPPER AFT CENTRE WELD SEAM.Dec 19, 1996 · Carson S61LSKRSKYSDR 97ZZZX359Nut · brokenNUT IS CRACKED (BROKEN) AND FOUND IN THE BOTTOM OF COWLING. CAUSED OIL LEAK.Dec 16, 1996 · N199F · Cessna TU206GSDR CALA9601514O-Ring · leakingTHE NR 3 ENGINE BEGAN TO LOSE OIL QUANTITY AFTER TAKEOFF. THE NR 3 ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND PLUG ON FORWARD END OF OIL COOLER LEAKING. THE O-RING PLUG WAS REPLACED. THE NROct 27, 1996 · N17407 · Boeing 727243SDR HEEA968318Oil Cooler · crackedCOOLER CRACKED AT TOP. ELONGATED MOUNTING HOLES AND CORROSION.Oct 14, 1996 · N7170D · Bolkms BO105SSDR HEEA968317Cooler · crackedOIL COOLER CRACKED IN NUMEROUS LOCATIONS. SENT TO DRAKE AIR FOR INSPECTION AND REPAIR.Oct 14, 1996 · N7170D · Bolkms BO105SSDR 96ZZZM1492Oil Cooler · failureFLT NR 4922 - PID-PBI - PILOT REPORTED DURING CLIMB-OUT NR 3 OIL TEMPERATURE ABOVE RED LINE. DID PRECAUTIONARY SHUT DOWN OF NR 3 ENGINE AND RETURNED TO PID. INSPECTION REVEALED SLUDGE IN THE VERNATHERM. THE VERNATHERM WAS REPLACED AND NR 3 ENGINE WAS RUN. Oct 7, 1996 · N234SL · Dhav DHC7102SDR HEEA968037Oil Cooler · contaminationOIL COOLER METAL CONTAMINATION.Oct 3, 1996 · N911RZ · Bolkms BK117A4SDR 96ZZZX5432Clip · separatedNOTED DURING ANNUAL, LT INTERCOOLER 'CLIP' SEPARATED LEAVING ONLY SCREW AND WELD BUSHING. SUBMITTER STATED THIS IS A RECURRING PROBLEM. A FIX WOULD BE TO BOND CLIP TO SIDE OF INTERCOOLER UPON INSTALLATION WITH HIGH TEMP RED SILICONE ADHESIVE.Oct 1, 1996 · N46PM · Piper PA46350PSDR 96ZZZX5305Cooler · weld splitAIRCRAFT LOST OIL PRESSURE IN-FLIGHT. RETURNED TO AIRPORT FOR A SAFE LANDING. INVESTIGATION FOUND OLD WELD REPAIR ON OIL COOLER LET GO. METAL FOUND IN OIL FILTER. ENGINE BEING DISASSEMBLED FOR INSPECTION.Sep 20, 1996 · N8181H · Piper PA28236SDR 96ZZZX4814Cooler · splitOIL COOLER SPLIT AND ALLOWED A VERY LARGE AMOUNT OF ENGINE OIL TO EXIT THE LOWER COWLING WITHOUT ANY VISUAL INFORMATION TO THE PILOT.Aug 26, 1996 · N8442H · Piper PA32301SDR 96ZZZX4702Inlet Fence · crackedDURING SCHEDULED INSPECTION, FOUND OIL COOLER INLET FENCE CRACKED ON BOTTOM NOSE COWLING. POSSIBLE TURBULENT AREA CAUSING VIBRATION AND CRACKING. SUBMITTER RECOMMENDS CLOSE INSPECTION DURING PRE-FLIGHT AND DURING SCHEDULED MAINTENANCE.Aug 17, 1996 · N117WF · Pilats PC12SDR 96ZZZX4810Inlet Fence · brokenPILOT PRODUCED BROKEN PART WHEN ARRIVING FOR INSPECTION. POSSIBLE TURBULENT AREA CAUSING VIBRATION AND FAILURE OF PART. SUBMITTER RECOMMENDS INSPECTING THIS AREA DURING PRE-FLIGHT AND PAY CLOSE ATTENTION DURING INSPECTION TIMES.Aug 1, 1996 · N62JT · Pilats PC12SDR CALA9601082Oil Cooler · inoperativeTHE NR 2 ENGINE OIL TEMPERATURE APPROACHED REDLINE AFTER TAKEOFF FROM SFO. THE TEMPERATURE INCREASE WAS ACCOMPANIED BY OIL PRESSURE DROP. THE NR 2 ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS RETURNED TO SFO WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND Jul 29, 1996 · N16807 · Doug DC982SDR 96ZZZX4763Fitting · crackedUPON RETURN OF FLIGHT, MECHANIC NOTICED SUBSTANTIAL AMOUNT OF OIL ON THE BELLY OF ACFT. UPON INVESTIGATION, FOUND A FITTING (AN912-1D) THAT EXITS THE OIL COOLER WAS CRACKED IN HALF. THIS ENGINE HAS BEEN RECONFIGURED TO A FLIGHTCRAFT TURBO, TURBO NORMALIZED SJul 26, 1996 · N7214Y · Beech A36SDR 96ZZZX3886Oil Cooler · leakedINSTALLED NEW LORI OIL COOLER, LEAKED IMMEDIATELY AT WELD AT BASE OF COOLER. SUBMITTER SUGGESTS TO IMPROVE TEST/QUALITY CONTROL BEFORE LEAVING FACTORY.Jul 17, 1996 · Cessna TU206GSDR CA960729001Actuator · failed(CAN) FLIGHT CREW ON CLIMB-OUT NOTICED NR 2 ENGINE OIL TEMP HIGH AT APPROX 85 DEGREES CELSIUS. OIL COOLER DOOR WAS MANUALLY SELECTED OPEN TO COOL OIL. DID NOT RECTIFY PROBLEM. POWER LEVEL RETARDED TO 1,000 H.P., NO CHANGE. OIL TEMP CONTINUED TO RISE AND WAJul 16, 1996 · Cvac 340CVACSDR USAASB96128Oil Cooler · failedBOS - FLT 788 - ON CLIMB-OUT AT APPROXIMATELY 10,000 FEET, THE NR 1 ENGINE OIL TEMPERATURE GAUGE WENT INTO THE YELLOW BAND. TEMPERATURE DECREASED WITH POWER INCREASE AND INCREASED WITH POWER DECREASE. CREW DECIDED TO RETURN TO FIELD AT BOS. OIL TEMPERATURE Jul 14, 1996 · N230AU · Boeing 7372Q9SDR UF6A960703Oil Cooler · failedORD - FLT 5717 - NR 1 OIL PRESSURE CWP ILLUMINATED IN FLIGHT ALONG WITH NR 1 OIL PRESSURE GAUGE SHOWING BELOW 40 PSI. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE OIL COOLER, AND PERFORMED HIGH POWER RUN. SYSTEM OPS CHECK GOOD. (M)Jul 12, 1996 · N859AW · Bag ATPSDR 96ZZZX3001Cooler · leakAFTER FIRST FLIGHT OF THE DAY, AIR CREW NOTICED OIL ON WING WALK. COWLING WAS REMOVED AND OIL WAS SEEN DRIPPING FROM OIL COOLER FINS. REMOVED AND REPLACED OIL COOLER.May 28, 1996 · N3192F · Slnsby T67M260SDR CA960415004Oil Cooler · leaking(CAN)#2 ENGINE OIL COOLER LEAKING. REPLACED.Apr 11, 1996 · Dhav DHC8102SDR 96ZZZX2513Cooler · leakOIL COOLER WAS REMOVED DUE TO LEAKING. THERE WAS NO APPARENT REASON FOR THE LEAK SUCH AS EXTERNAL DAMAGE.Apr 11, 1996 · N34161 · Cessna 177RGSDR COMA9610117Oil Cooler · leakingRT ENGINE LOST OIL PRESSURE DURING TAKEOFF. REPLACED THE ENGINE OIL COOLER.Mar 27, 1996 · N168CA · Emb EMB120RTSDR CA960229001Oil Cooler · leaking(CAN)HEAVY OIL LEAK #2 ENGINE. OIL COOLER LEAKING.Feb 28, 1996 · Dhav DHC8102SDR CA960227004Oil Cooler · leaking(CAN)HEAVY OIL LEAK #2 ENGINE, OIL COOLER LEAKING, REPLACED.Feb 22, 1996 · Dhav DHC8102SDR CA960214015Oil Fitting · leaking(CAN)PILOT NOTICED OIL LEAKING FROM ENGINE DURING WALKAROUND. INVESTIGATION FOUND THE OIL WAS COMING FROM THE THREADS OF THE OIL COOLER FITTINGS. THE SEALANT AROUND THE THREADS WAS FOUND TO BE MISSING. NEWSEALANT WAS APPLIED AND THE AIRCRAFT RETURNED TO SERVICJan 30, 1996SDR AU960090Oil Cooler · leaking(AUS) ENGINE OIL COOLER CORE LEAKING - LOSS OF 5 QUARTS OF OILJan 22, 1996 · Cessna 310RSDR CA960214016Oil Cooler · leaking(CAN)ON WALKAROUND THE PILOT NOTICED OIL COMING FROM THE RIGHT HAND ENGINE. INVESTIGATION FOUND OIL COOLER SHOWED SIGNS OF LEAKAGE. COOLER REMOVED AND PRESSURE TESTED AND FOUND TO HAVE PIN HOLES. COOLER RE PLACED WITH A NEW UNIT.Jan 20, 1996 · Piper PA44180SDR CA960202012Oil Cooler · leaking oil(CAN)AFTER NUMEROUS ATTEMPTS TO LOCATE AND REPAIR A SMALL OIL LEAK ON THE #1 ENGINE, INCLUDED IN THE FIXES WERE SEAL REPLACEMENT OF THE STARTER GENERATOR, FCU, FUEL PUMP DRIVE, FRONT CASE PROP SEAL, NONE O F THESE REPAIRS CURED THE OIL LEAK. AFTER MUCH TROUBLEJan 18, 1996 · Dhav DHC6300SDR 96ZZZX819Baffle · crackedBAFFLE OIL COOLER IS CRACKING AROUND OIL COOLER MOUNT POINT. SUBMITTER STATED BAFFLE NEEDS TO BE MADE FROM THICKER MATERIAL. THIS PROBLEM IS A COMMON OCCURRENCE. (SEE PREVIOUS M OR D REPORTS).Jan 15, 1996 · N144ER · Socata TB9SDR 96ZZZX592Cooler · leaksSUBMITTER STATED THIS IS THE EIGHTH OIL COOLER OF THIS TYPE TO LEAK BETWEEN 100-HOUR AND 200-HOUR TT'S.Jan 12, 1996 · N4975U · Cessna U206GSDR CA960111005Cooler · leaking(CAN)#2 ENGINE OIL COOLER FOUND LEAKING.Jan 10, 1996 · Dhav DHC8102SDR PCAA9600260Oil Cooler · leaksLOW OIL PRESSURE ON NR 1 ENGINE REQUIRED PRECAUTIONARY SHUT-DOWN. (OIL LIGHT ILLUMINATED AND PRESSURE DROPPED SLOWLY TO 40 PSI AND SHUT-DOWN WAS INITIATED.) MASTER WARNING FLASHED WITHOUT CAPTION. REMOVED AND REPLACED OIL COOLER IAW MM. GROUND RAN AIRCRAFTJan 6, 1996 · N416AW · Dhav DHC8102SDR CA960103004Oil Cooler · leaking(CAN)#2 OIL COOLER LEAKING. COOLER REPLACED.Jan 2, 1996 · Dhav DHC8311SDR PCAA9500259Oil Cooler · leakingNR 1 ENGINE OIL PRESSURE DROPPED TO 30 PSI. SHUT DOWN NR 1 ENGINE, ASSOCIATED WARNING LIGHT ALSO ILLUMINATED. COMPLETED PRATT AND WHITNEY MM 03-50-00, LOW OIL PRESSURE INSPECTION. REPLACED SCAVENGE FILTER. FOUND NR 1 ENGINE OIL COOLER LEAKING THROUGH FINS, Dec 26, 1995 · N800MX · Dhav DHC8102SDR HEEA956215Cooler · defectiveHIGH ENGINE OIL TEMP. DEFECTIVE OIL COOLER.Dec 7, 1995 · N6160Y · Bell 206L3SDR 96ZZZX88Cooler · leakingOIL COOLER CORE WAS FOUND LEAKING AFTER RETURNING FROM A FLIGHT. THIS IS THE SECOND COOLER FOUND LEAKING ON THIS ENGINE. FIRST LEAK OF COOLER WAS AT 395.0 HOURS TOTAL TIME. TOTAL TIME ON ENGINE NOW IS 502.0 HOURS.Nov 27, 1995 · N4975U · Cessna U206GSDR CA951108003Oil Cooler · leaking(CAN)OIL COOLER LEAKING ON WELD.Nov 3, 1995 · Dhav DHC8102SDR 96ZZZX253Cooler · splitOIL COOLER WELD BROKE WHERE THE BOSS IS WELDED ONTO THE COOLER ON INBOARD SIDE. OIL WAS QUICKLY PUMPED OUT OF THE ENGINE SPRAYING OVER THE ENGINE CREATING MUCH SMOKE IN THE COCKPIT AND ZERO READING ON THE OIL PRESSURE GAUGE. FORTUNATELY, ACFT WAS OVER AN AIRNov 1, 1995 · N992PE · Amtr THORPT18SDR HEEA955938Cooler · metal contamOIL COOLER UNIT HAS METAL CONTAMINATION.Oct 31, 1995 · N33008 · Bell 412SDR 95ZZZX6388Support Baffle · brokenDURING SCHEDULED MAINTENANCE (100-HOUR INSPECTION), THE OIL COOLER SUPPORT BAFFLE WAS FOUND BROKEN AT 2 OF THE 4 MOUNT POINTS AND SEVERELY CRACKED ON THE OTHER 2 MOUNTS. THIS CONDITION COULD CAUSE OIL LOSS AND POSSIBLE ENGINE FAILURE. INSTALLED NEW OIL COOLEOct 31, 1995 · N175ER · Socata TB9SDR 96ZZZX129Oil Cooler · leakingPSE/SJU - FLT 7026 - EN ROUTE, SHUT DOWN NR 2 ENGINE DUE TO LOW OIL PRESSURE AND QUANTITY. FOUND THE OIL COOLER LEAKING. REPLACED OIL COOLER.Oct 30, 1995 · N87949 · Cvac 240*
Back to JASC 7921