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.
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
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 2011FA0000718Line · failedPROBLEM OCCURED ON SUPPLY LINE TO OIL COOLER ON AN EXPERIMENTAL AIRCRAFT. HOSE CLAMP HOLDING AUTOMOTIVE TYPE OIL HOSE TO BARBED FITTING ON OIL COOLER WAS MOUNTED TO CLOSE TO END OF FITTING. HOSE DEVELOPED A HOLE NEXT TO THE HOSE CLAMP WHICH CAUSED THE OIL TOSDR CA110930004Actuator · inoperative(CAN) NR 1 OIL TEMP TO 105 DURING CLIMB. STAYED AT 105 FOR ABOUT 7 MINUTES. DECREASED DURING DESCENT. MX REPLACED MOT SENSOR THEN DISCOVERED ACOC FLAP DOOR STUCK PARTIALLY CLOSED AFTER OPS CHECK. DOOR ACTUATOR REPLACED.SDR CA110930003Actuator · inoperative(CAN) NR 1 OIL TEMP SHOWED 111C WHEN LEVELED OFF AT 22,000. AFTER CONDUCTING ABNORMAL CHECK LIST, CONTACTING MX, AND REDUCING PWR, TEMP DECREASED TO 107C IN APPROX 1 MIN. MX REPLACED THE OIL COOLER FLAP ACTUATOR.SDR MASA2011080303394Oil Cooler · defectiveABNORMAL PWR NR 1 ENG OIL TEMP 120 C. R2 OIL COOLER.SDR CA110729002Shaft · corrodedDURING REPLACEMENT OF V-BELT SET IT WAS FOUND THAT THE FANSHAFT ASSY HAD CORROSION AND PITTING ON THE TAPERED SHAFT. CORROSION AND PITTING WAS ALSO NOTED ON THE TAPERED BORE OF THE FANWHEEL ASSY PN: D174-2. FANSHAFT AND FANWHEEL REPLACED.SDR CA110719001Actuator · inoperativeENGINE NR 2, HIGH OIL TEMPERATURE REACHING RED BAND DURING CLIMB. REPLACED OIL COOLER OUTLET FLAP ACTUATOR, ENGINE RUN SATISFACTORY IAW AMM TASK 79-21-31.SDR CA110620007Gasket · brokenPILOT REPORTED THAT HE HAD SOME OIL ON RT PART OF WINDSHIELD. DISCOVERED THAT THE OIL COOLER ADAPTER GASKET ON RT FWD OF ENGINE HAD A HAIR LINE OPENING OR SPLIT THAT ALLOWED SMALL AMOUNT OF OIL COLLECT ON WINDSHIELD. OIL LOSS WAS ONLY A COUPLE OUNCES. GASKESDR EOPA062011193ALOil Cooler · leakingOIL COOLER CRACKED INTERNAL OF COOLER FINS CAUSING OIL LEAK.SDR CA110616005Oil Cooler · crackedINFLIGHT SHUTDOWN ON NR 2 ENGINE DUE TO CRACKED OIL COOLER. THE CRACK HAD DEVELOPED ALONG A REPAIRED WELD, THIS CAUSED LOSS OF ENGINE OIL, ENGINE SHUTDOWN AND ACFT DIVERSION TO THE NEAREST AIRPORT. PART HAS BEEN REPAIRED. THE LENGTH OF THE CRACK IS 71MM. THESDR CA110615005Fitting · crackedTHE TAKEOFF WAS REJECTED (BELOW 70 KTS) WHEN THE LT ENGINE OIL PRESSURE WENT TO ZERO. THE RT OIL INLET TUBE ADAPTER FITTING TO THE LT OIL COOLER WAS FOUND BROKEN AND THE TUBE DISCONNECTED. THIS RESULTED IN THE LOSS OF A SUBSTANTIAL AMOUNT OF OIL IN A SHORT PESDR CA110608002Oil Cooler · leakingOIL LEAK DISCOVERED AT THE ENGINE OIL COOLER AREA DURING ALF CHECK. AREA CLEANED AND INSPECTED, WITHOUT DEFECT. HOSES VERIFIED FOR TIGHTNESS, NO DEFECT. RUN-UP C/O, LEAK FOUND AT THE LOWER PART OF THE OIL COOLER AGAIN. OIL COOLER REPLACED, RUN-UP C/O, NO MOSDR CA110609003Oil Cooler · failedDURING AN APPROACH CHECK FLIGHT, THE NR1 ENGINE OIL TEMPERATURE EXCEEDED ITS NORMAL OPERATING RANGE TO A YELLOW ARC CAUTION OF 113C. THE ACFT DID AN UNSCHEDULED LANDING. MX DETERMINED THE ROOT CAUSE TO BE A FAILED OIL COOLER - AIR OUTLET FLAP ACTUATOR. THE OSDR UALA2011051002307Oil Cooler · leakingNR 1 ENG HOC. REPLACED FCOC PER MM. NO LEAKS.SDR CA110525001Actuator · inoperativeDURING THE CLIMB, THE CREW NOTICED OIL TEMP INDICATION FOR NR 2 ENGINE WAS HIGH, 108C FOR AROUND 10 SEC OIL TEMP DECREASED AFTER THE CREW RETARDED NR 2 ENGINE POWER. THE FLIGHT WAS DIVERTED TO BASE AS PRECAUTION. MX CONFIRMED THAT ACOC ACTUATOR IS INOPERATIVSDR UALA2011042101941Oil Cooler · leakingCREW REPORTED ENG 2 FUEL LEAK UNDER ENGINE. FOR ENGINE DRAINS LEAK RATE LIMITS, REPORT FINDINGS TO SAMC, CARRIED FORWARD PER SAMC. LCL UAL MAINT REP REPORTS FUEL LEAK FROM ACOC (AIR COOLED OIL COOLER) APPROX 19 DPM DURING IDLE RUN BY FLIGHT CREW, WITHIN CARRSDR JTAA20110412001Bearing · failedPILOT HEARD A LOUD BANG AND NOTICED A SEVERE VIBRATION IMMEDIATELY. PILOT SET EXTERNAL LOAD ON ROOF CURB, RELEASED LONGLINE/RIGGING AND MADE AN UNEVENTFUL EMERGENCY LANDING IN PARKING LOT AT JOB SITE. AUX HYD PRESSURE WENT TO ZERO BEFORE ACFT WAS SHUTDOWN. SDR UALA2011041101738Heat Exchanger · leakingFUEL SEEPAGE UNDER LEFT ENG. FUEL LEAKING FROM NR 1 ENG IDG AIR-OIL HEAT EXCHANGER, REPLACED PER MM. OPS NORMAL NO LEAKS.SDR CA110425006Bypass Valve · leaking(CAN) SMOKE IN CABIN DURING FLIGHT, OIL FUMES AND SMOKE ENTERED THE CABIN. EMERGENCY WAS DECLARED AND THE ACFT RETURNED TO THE DEPARTURE POINT FOR AN UNEVENTFUL LANDING. POST FLIGHT INSPECTION FOUND A LEAK ON THE AIRFRAME OIL COOLER BYPASS VALVE WHICH APPARESDR CA110318008Oil Cooler · leaking(CAN) OIL LEAK NOTED ON ENG COWLING. SOURCE OF LEAK LOCATED ON OIL COOLER ASSEMBLY. OIL COOLER REPLACED, NO LEAKS NOTED.SDR CA110225014Actuator · failed(CAN) PILOTS REPORT: "OIL TEMPERATURE OBSERVED IN EXCESS OF 109 DEGREES ON NR 2 ENGINE AT APPROXIMATELY 9000`. QRH PROCEDURE CONDUCTED. OIL TEMPERATURE REACHED 118, DEGREES AND AFTER QRH PROCEDURE REDUCED TO 117 DEGREES. IMMEDIATE DESCENT TO LAND WAS INITIASDR CA110215005Bypass Valve · failedPILOTS REPORT: "ON CLIMB NR 2 OIL TEMP OBSERVED TO BE 108 DEGREES AND INCREASING. POWER REDUCED. QRH PROCEDURES ACTIONED, AIR RETURN ADVISED BY MX WATCH. NORMAL APPROACH - LANDING CARRIED OUT." MAINTENANCE REPORT: "LINE MX TROUBLESHOOTING CONFIRMED FAILURE OF SDR QXEA2011020900133Actuator · malfunctionedDURING FLIGHT, NR 2 OIL TEMP INDICATED 108 DEGREES C CLIMBING THROUGH 17,000' AND REACHED A HIGH OF 109 DEGREES C AFTER LEVELING OFF AT FL190. IAW CHECKLIST, THE BYPASS DOORS WERE ALREADY ON CLOSED POSITION. OIL TEMP DECREASED INTO NORMAL RANGE AFTER LEVELINSDR CA110201002Fuel Heater · leaking(CAN) OIL PRESSURE SLOWLY DECREASED DURING CRIUSE FLIGHT AT NIGHT. PILOTS SHUTDOWN AND SECURED ENGINE WHEN THE OIL PRESSURE FELL TO THE LIMIT FOR THE ENGINE OPERATING PARAMETERS. UPON INVESTIGATION THE AME DISCOVERED THAT THE OIL LOSS WAS FROM A CRACKED OIL FUSDR CA110131005Oil Cooler · leaking(CAN) OIL COOLER LEAKING.SDR 2011FA0000044Oil Cooler · crackedAFTER AN OIL CHANGE, THE CUSTOMER COMPLAINED OF OIL ON TOP OF THE NOSE GEAR WELL AREA BEHIND & BELOW ENGINE. ENGINE COMPARTMENT CLEANED, GROUND RUN & ENGINE COMPARTMENT INSPECTED FOR LEAKS. NONE NOTED. CUSTOMER CONTACTED SHOP THE FOLLOWING WEEK AFTER FLYING OVSDR 2010FA0001265Support · brokenDURING AN A ANNUAL INSP IT WAS NOTICED THAT THE LT ENGINE OIL COOLER FWD FACE EXTERNAL DIAGONAL SUPPORT BAR HAD BROKEN OFF HALF WAY FROM THE CTR TO THE BOTTOM INBD CORNER. UNIT REMOVED FOR REPAIR.SDR ALGA1081051001988Impeller · crackedOIL COOLER BLOWER HAS A CRACKED IMPELLER.SDR ASMF201012005Sensor · damagedACFT PERFORMED AN UNSCHEDULED LANDING, DURING CRUISE THE ENG OIL FILTER RT LIGHT TURNED ON WITH AN OIL TEMP INDICATION OF 60 CENTIGRADE DEGREES AND OIL PRESSURE INDICATION OF 60 PSI; THE EICAS MESSAGES ENG OIL FILT R AND MX MESSAGES 79-31452, 79-31-31462 AND 7SDR FDEA201012034558Oil Cooler · false activationGOT HIGH ENG OIL PRESSURE NR 2 ENG ON T/O ROLL. REJECTED T/O INDICATIONS WERE BACK TO NORMAL AFTER EXITING RUNWAY. RAN NR 2 ENG IAW JRH. NO DEFECTS NOTED. OIL NEVER ROSE ABOVE 58 PSI WITH THROTTLE ADVANCED AND WAS 50 TO 52 PSI AT IDLE. OIL TEMP WAS ALSO WISDR P4YA2010120200001Oil Cooler · crackedDURING CRUISE, CREW NOTICED THE RT OIL PRESSURE GAUGE FLUCTUATING RAPIDLY AND NOTED THE OIL TEMPERATURE WAS HOLDING STEADY IN THE GREEN ARC. VISUAL INSP BY THE F/O CONFIRMED OIL STREAMING FROM THE BOTTOM OF THE OIL COOLER AREA. CREW THEN READIED THE ANTICIPASDR HALA2010110800524Heat Exchanger · leakingETOPS SIGNIFICANT SYS - ON OVERNIGHT CHECK, FOUND NR2 ENG EVIDENCE OF OIL LEAK IN BYPASS AREA. REMOVED NR2 ENG AIR/OIL HEAT EXCHANGER AND VALVE ASSY IAW AMM 79-21-09 (HA11068), INSTALLED AIR/OIL HEAT EXCHANGER IAW AMM 79-21-09. OPS AND LEAK CHECK PENDING. GROSDR UALA2010101503822O-Ring · leakingWHILE PERFORMING LEAK CHECK OF THE FUEL OIL COOLER, FOUND OUTLET MANIFOLD ASSEMBLY (LOCATED ON THE TOP OF THE COOLER) AND THE FUEL-OIL COOLER BYPASS VALVE (LOCATED ON THE BOTTOM OF THE COOLER) LEAKING OIL. RPL'D SEAL PLATE ON FUEL OIL BYPASS VLV. REPLACED O-RSDR FK8R201010080005Bracket · crackedOIL COOLER MOUNTING BRACKET WAS FOUND CRACKED.SDR HNAA2010091600216Oil Cooler · malfunctionedON CLIMBOUT, NR1 ENGINE OIL TEMP CLIMBED TO 125 DEGREES C. CYCLED ENGINE INTAKE DOOR TO SEE IF TEMP WOULD DECREASE. TEMP STAYED THE SAME. THEN REDUCED TORQUE TO 50 PERCENT. TEMP WENT TO 120 DEGREES C AFTER 18 MINUTES. REDUCED TORQUE TO 37.5 PERCENT. THEN SDR UALA2010091603465Valve · leakingNR 2 ENG AIR-OIL HEAT EXCHANGER VALVE LEAKING FROM CORE. REPLACED NR 2 ENG AIR OIL COOLER. OPS NORMAL.SDR QXEA2010082500495Oil Cooler · malfunctionedNR1 ENG OIL TEMP RED AT 111'C FOR 10 MIN, FOR 20 MIN, RANGE BETWEEN 109-111'C. GREEN RANGE 90-98'C DURING DECENT. DIVERTED. LANDING UNEVENTFUL. C/W FIM TASK 79-00-00-810-805 TR79-003 & AMM TASK 05-33-00-210-814. R & R NR1 ENG OIL COOLER IAW MM TASKS 79-21-01SDR 2010FA0000790Oil Cooler · leakingTHE FIRST UNIT THAT FAILED WAS AN O/H COOLER, PN 8000074, SN 1041411 MFG. 04/05, INSTALLED 12/01/09 AND FAILED ON 3/19/10. THE REPLACEMENT COOLER WAS NEW WITH SAME PN 8000074 AND SN 1041905 , MFG. 10/09, INSTALLED ON 3/25/10. THE FIRST WAS INSTALLED ON A FACTSDR GLBA201007232AOil Cooler · leakingOIL LEAKING FROM NR 1 ENGINE APPEARS TO BE COMING FROM OIL COOLER.SDR CA100723001Actuator · failedOIL TEMP ON NR 1 ENG AS HIGH AS 112 C. ALL OTHER PARAMETERS NORMAL. MX FOUND: FOUND OIL COOLER FLAP DOOR ACTUATOR FAILED, CLOSED. REPLACED ACTUATOR.SDR QXEA2010072600443Actuator · failedOIL TEMP ON NR 1 ENG AS HIGH AS 112 DEG ALL OTHER INDICATIONS NORMAL. RETURNED TO THE FIELD. LANDING UNEVENTFUL. DURING T/S FOUND OIL COOLER FLAP DOOR ACTUATOR FAILED, DOOR WOULD NOT OPEN. R & R OIL COOLER FLAP DOOR ACTUATOR IAW AMM TASK 79-21-31-000/400-801. SDR CA100617006Impeller · mismanufacturedIMPELLER ON OIL COOLER BLOWER ASSY MANUFACTURED INCORRECTLY FROM MFG. CTR SPLINED HUB MACHINED TOO HIGH, CAUSING IMPELLER TO RUB ON OUTER STATOR HSG. PART RETURNED TO MFG FOR WARRANTY.SDR 2010FA0000526Oil Cooler · failedNEW OIL COOLER INSTALLED FAILED WITH ONLY A TOTAL OF 29 CUMMLATIVE HOURS AT THE BRAZE WELD OF THE CASING.SDR CA100607005Bearing · roughNEW BEARING (PN P9103PPFS381A) PURCHASED FROM MFG, FOUND UNSERVICABLE, DUE TO LACK OF LUBRICATION AND ROUGH OPERATION. PART SCRAPPED AND WARRANTY RECEIVED FROM MFG. NOTE: THIS BEARING IS PART OF A BLOWER ASSY.
SDR CA100809002Balance Weight · separatedACFT WAS IN CRUISE FLIGHT WHEN THE TRANSMISSION OIL PRESSURE WARNING LIGHT ILLUMINATED. PILOT CARRIED OUT AN UNSCHEDULED LANDING. AT THE TIME OF ENG SHUTDOWN, THE TRANSMISSION WAS SHOWING OVER 20 PSI. THE ENGINEER ONBOARD INSPECTED THE OIL COOLER BLOWER COMSDR TXH2010F00001Oil Cooler · leakingNR 1 ENGINE OIL PRESSURE DROPPED DOWN IN FLIGHT. CHANGED OIL COOLER AND LEAK CHECKED, OK.SDR WRLA20100317351Oil Cooler · faultyAT 4 + 46 INTO FLIGHT, ENG NR 2 FLAMED OUT, LEVEL 2 ENG RPM LOW ALERT CAME ON ATTEMPTED RESTART AND ENG RE LIT, WHILE OPERATING ENG AT IDLE FOR WARM UP ENG NR 2 EPR X ED OUT AND ENGINE FLAMED OUT AGAIN, ENG NR 2 WAS RESTARTED AND BECAME FULLY OPERATIONAL. LEVSDR SWIA201023802Oil Cooler · leakingGRADUAL LOSS OF OIL PRESSURE, RIGHT ENGINE SHUT DOWN PRECAUTIONARY. (FLT 6237) REPLACED OIL COOLER.SDR ALGA3810AL122398Impeller · crackedBLOWER ASSY. REMOVED FROM ACFT DUE TO A CRACKED IMPELLER. IMPELLER WAS CRACKED COMPLETELY THROUGH ON 3 SIDES OF THE MOUNTING BOSS.SDR KBTR 10 0315Oil Cooler · contaminatedENGINE CHIP LIGHT ILLUMINATED DURING DESCENT FOR LANDING AT MX BASE. INSPECTED ENGINE CHIP PLUGS, FOUND METAL FUZZ ON ALL PLUGS, AND IN OIL FILTER. ALSO FOUND SAND MEDIA DEBRIS IN OIL FILTER. DURING THIS MAINT CYCLE, ENG OIL COOLER WAS REMOVED DUE LEAKAGE AT USDR 2010FA0000182Regulator Valve · wornENGINE OIL TEMPERATURE ROSE HIGHER THAN USUAL. FOUND TEMPERATURE REGULATOR VALVE (THERMAL VALVE)TO BE THE PROBLEM.
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