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 CA120910010Bypass Valve · failed(CAN) DURING CLIMB AT FL 110, OIL TEMPERATURE ROSE UP TO 112C ON ENGINE NR 2. AFTER POWER REDUCTION BY 30 PERCENT, OIL TEMPERATURE STARTED TO DROP AFTER 3-4 MINUTES, AND AFTER 12 MINUTES IT DROPPED BELOW 107C. CREW DECIDED TO DIVERT FLIGHT, ON FL 160 WITH TSDR CA120813012Oil Cooler · malfunctioned(CAN) DURING CLIMB, THE FLIGHT CREW OBSERVED AN EXCEEDED INDICATION OF HIGH OIL TEMPERATURE ON THE NR 1 ENGINE. THE ENGINE POWER WAS REDUCED TO BRING THE OIL TEMPERATURE DOWN BUT WITHOUT A SUCCESSFUL RESPONSE. THE FLIGHT CREW THEN ELECTED TO SHUTDOWN THE NR SDR CA120809001Bypass Valve · failed(CAN) LT ENGINE OIL TEMP INDICATED HIGH, THE CREW REDUCED THE ENGINE POWER BUT THE OIL TEMP WAS OVER 107 DEGREES C FOR MORE THAN 10 MIN SO THAT THE PILOT COMMANDED SHUTDOWN THE AFFECTED ENGINE AND DECLARED AN EMERGENCY. THE ACFT MADE ATB TO THE ORIGIN AIRPORTSDR 2012FA0000549Hose · failedPILOT REPORTED AFTER LANDING, DURING FUEL TOP OFF FOR NEXT FLIGHT, A POOL OF OIL UNDER THE ENGINE COWL, INVESTIGATION SHOWED ONE OF THE OIL COOLER HOSES HAD SPLIT AND DUMPED APPROX 6 QTS OF OIL , THESE 2 HOSES WHERE CHANGED 7.58 HOURS PRIOR TO THIS EVENT, BOTHSDR HDNA201207300003Shaft · failedSHAFT HAS FAILED SEVERAL TIMES IN THE LAST 6 MONTHS. THE OIL COOLER ASSEMBLY HAS BEEN CHANGED ONCE. WEATHER HASN’T BEEN A PROBLEM. WOULD BE GUESSING TO SAY WHAT WAS CAUSING THE FAILURES.SDR CA120801006Fuel/Oil Cooler · failed(CAN) IN THE CLIMB THE RT OIL TEMP WENT TO 171C IN THE RED. THE CREW REDUCED POWER TO LOWER THE OIL TEMP AND THE ACFT RETURNED TO THE DEPARTURE AIRPORT. MAINTENANCE T/S DETERMINED THAT THE RT FUEL OIL COOLER WAS AT FAULT AND REPLACED THE UNIT. PN 4119T36P03SDR UALA2012072303993Oil Cooler · faultyLEFT GENERATOR DRIVE LIGHT ILLUMINATED TWICE FOR 3 MINUTES EACH THEN NORMAL OPS THEREAFTER. NR 1 ENG GEN INOP. REPLACED FUEL OIL HEAT EXCHANGER PER MM. RAN ENG, POS CHECKED GOOD.SDR CA120801013Actuator · failed(CAN) DURING CLIMB, NR 2 ENGINE OIL TEMP CLIMBED TO 113 FOR 12 MINS. FLIGHT CREW COMMANDED IN FLIGHT SHUTDOWN AFTER A HIGH OIL TEMPERATURE WAS NOTED, IAW CHECK LIST. ACFT LANDED BACK AT AIRPORT. MAINTENANCE ACTION, OIL COOLER DOOR ACTUATOR REPLACED. ACFT RSDR CA120801010Valve · failed(CAN) AIR TURNBACK FOR NR 1 ENGINE HIGH OIL TEMPERATURE. CLIMBING THROUGH FL200, NR 1 ENGINE OIL TEMPERATURE INCREASED BEYOND 107 DEGREES. FAULT CODE 737 RETRIEVED FROM CDS. OIL COOLER THERMAL VALVE REPLACED. ACFT RETURNED TO SERVICE.SDR QXEA2012071900720Actuator · malfunctionedON CLIMOUT PASSING THROUGH APROX 12,000 FT, NOTED OIL TEMP AT 107 DEG AND CLIMBING ON THE NR 2 ENGINE. CONDUCTED THE HIGH OIL TEMP CHECKLIST, WHICH REDUCED THE POWER AND MONITORED FOR 10 MINUTES, FOLLOWING 10-12 MINUTES OIL TEMP WAS AT 113 DEG AND THE NR 2 ENSDR CA120823008Actuator · failed(CAN) NR 2 ENGINE OIL TEMP HIGH. MAINTENANCE FOUND ACOC DOOR ACTUATOR INOPERATIVE. ACTUATOR REPLACED.SDR 2A6R2012062929101Shaft · shearedAFTER LANDING FROM A HOVER, WHILE PERFORMING MAIN ROTOR TRACK AND BALANCE, THE PILOT REPORTED NR 2 ENGINE OIL TEMPERATURE WAS CLIMBING TO YELLOW ZONE. MX INVESTIGATED AND DETERMINED THAT THE NR 2 TRANSMISSION DRIVEN OIL COOLER BLOWER WAS NOT ROTATING. DISASSSDR QXEA2012062700586Actuator · failedON CLIMB OUT NR 2 ENGINE OIL TEMP CLIMBED TO THE RED ARC TO 109 C FOR 4 MINUTES. RAN THE EMERGENCY CHECKLIST, INCREASED AIRSPEED, DECREASED POWER ON NR 2 ENGINE GOT TEMPERATURE BELOW 90 C FOR REST OF FLIGHT UNTIL TAXI IN. TEMPERATURE WENT BACK UP TO 104 C DUSDR HDNA201206120002Shaft · failedSHAFT HAS FAILED SEVERAL TIMES IN THE LAST 6 MONTHS. THE OIL COOLER ASSY HAS BEEN CHANGED ONCE. WEATHER HASN’T BEEN A PROBLEM. WOULD BE GUESSING TO SAY WHAT WAS CAUSING THE FAILURES.SDR CA120611004Bypass Valve · defective(CAN) AIR TURN BACK DUE TO ENGINE OIL TEMPERATURE INCREASING TO 107 CENTIGRADE DEGREES DURING CLIMB. CREW MEMBER DID QRH CHECKLIST AND NOTIFIED MOC. THE CREW WAS ADVISED TO REDUCE TORQUE AND DESCEND. THE OIL BY-PASS VALVE AND THERMAL ACTUATOR FUEL HEATER WASDR CA120608010Shaft · sheared(CAN) COMBINING GEARBOX CHIP LIGHT, NR 2 OIL COOLER BLOWER SHAFT FOUND SHEARED.SDR CA120608001Hose · failed(CAN) THE ACFT WAS IN THE CIRCUIT WHEN THE OIL PRESSURE ANNUNCIATOR LIGHT CAME ON, AND THE OIL PRESSURE GAUGE WAS FOUND TO BE READING ZERO. THE ACFT COMPLETED THE CIRCUIT, WITH THE ANNUNCIATOR OCCASIONALLY FLICKERING OFF TO BACK ON. THE ACFT LANDED AND TAXIEDSDR CA120627012Actuator · malfunctioned(CAN) ON CLIMBOUT NR 2 ENGINE OIL EXCEEDED 107 DEGREES. CHECK LIST RAN OIL TEMP STABILIZED AT 108 DEGREES WITH POWER AT IDLE 32 FUEL TEMP ROSE TO 70 DEGREES, BEFORE STABILIZING AFTER CHECKLIST. MAINTENANCE REPLACED ACOC THERMAL BYPASS VALVE AND FOHE THERMAL SDR QXEA2012052300397Bypass Valve · failedON CLIMB OUT, NR 2 ENGINE OIL EXCEEDED 107 DEGREES. CHECK LIST RAN, OIL TEMP STABILIZED AT 108 DEGREES WITH POWER AT IDLE. FUEL TEMPERATURE ROSE TO 70 DEGREES, BEFORE STABILIZING AFTER CHECKLIST. RETURNED TO FIELD, LANDING UNEVENTFUL. REPLACED NR 2 ENGINE OISDR CA120523015Actuator · failed(CAN) NR 2 ENGINE OIL TEMP INDICATED HIGH UP TO 112C. THE ACFT LANDED AT DESTINATION UNEVENTFULLY. MAINTENANCE CONFIRMED THE OIL COOLER DOOR ACTUATOR WAS CLOSED WHEN THE ACFT TAXIED INTO THE GATE. THE ACFT RTS AFTER THE REPLACEMENT OF THE OIL COOLER DOOR ACTSDR ALGA2012051103Blower · wornOIL COOLER BLOWER WORN, REPLACED ONE BEARING, PN 47-134-2 AND 1 EA BEARING, PN 47-146-1 BOTH DUE TO WEAR BEYOND REPAIRABLE LIMITS. REPLACED 1 EA GUIDE VANE PN 2660-1534-01 DUE TO CORROSION BEYOND LIMITS.SDR CA120627001Bypass Valve · malfunctioned(CAN) AIR TURNBACK DUE TO NR 2 ENGINE HIGH OIL TEMP DURING CLIMB. THERMAL BYPASS VALVE AND OIL COOLER DOOR ACTUATOR REPLACED.SDR CA120524002O-Ring · damaged(CAN) UPON TAKEOFF, THE CREW NOTED AN OIL PRESSURE FLUCTUATION ON THE RT ENGINE. THEY ELECTED TO SHUT IT DOWN AND AN UNEVENTFUL SINGLE ENGINE LANDING WAS MADE AT THE POINT OF DEPARTURE. POST FLIGHT INSPECTION FOUND AN OIL LEAK DUE TO DAMAGED O-RING ON THE OILSDR CA120510004O-Ring · cut(CAN) DURING CLIMB OUT FROM YVO THE RIGHT HAND ENGINE LOSS OIL PRESSURE. THE OIL PRESSURE CAUTION LIGHT ILLUMINATED AND THE CREW SHUTDOWN THE RT ENGINE AND RETURNED TO DEPARTURE. MAINTENANCE FOUND A CUT O-RING TO THE INLET OF THE RT ENGINE OIL COOLER. THE OILSDR 2012FA0000328Impeller · crackedOIL COOLER IMPELLER WAS INSPECTED FOR CRACKS IN THE BLADE/SHOUD REGION IAW MFG RECOMMENDATIONS EVERY 100 HOURS OF OPERATION. 2 CRACKS WERE CONFIRMED AND SEVERAL OTHERS SUSPECTED. THE CURRENTLY MFG IMPELLER, 269D4530-001, IS APPARENTLY THE LATEST GENERATION TSDR 2012FA0000327Impeller · crackedOIL COOLER IMPELLER WAS INSPECTED FOR CRACKS IN THE BLADE/SHOUD REGION IAW MFG RECOMMENDATIONS EVERY 100 HRS OF OPERATION. 2 CRACKS WERE CONFIRMED AND SEVERAL OTHERS SUSPECTED. THE CURRENTLY MFG IMPELLER, 269D4530-001, IS APPARENTLY THE LATEST GENERATION THASDR HDNA201205080001Shaft · failedSHAFT HAS FAILED SEVERAL TIMES IN THE LAST 6 MONTHS. THE OIL COOLER ASSEMBLY HAS BEEN CHANGED ONCE. WEATHER HASN’T BEEN A PROBLEM. WOULD BE GUESSING TO SAY WHAT WAS CAUSING THE FAILURES.SDR QXEA2012050700370Actuator · failedNR 1 ENGINE OIL TEMPERATURE REACHED 108 DEGREES C (RED) IN CLIMB. LEVELED OFF AT 13,000. RETURNED TO FIELD, LANDING UNEVENTFUL. FOUND A NR 1 OIL TEMPERATURE EXCEEDENCE OF 107.8 FOR 165 SECONDS. PERFORMED AN OPS TEST OF THE OIL COOLER FLAP DOOR ACTUATOR IAW SDR 2012FA0000362Oil Cooler · failedOIL COOLER WAS INSTALLED. ACFT WAS GROUND RAN. NO LEAKS NOTED. ACFT WAS RETURNED TO SERVICE. APPROX 35 MIN INTO FLIGHT, COOLER FAILED. INSPECTION AND PRESSURE CHECK OF COOLER SHOWED FAILURE AND LEAK NEXT TO REPAIR.SDR CA120522020Valve · malfunctioned(CAN) REPORT FROM CREW, FLIGHT WAS ON ASCENT TO FL160, ABOVE FL100, CREW NOTICED OIL TEMP OF 122 FLT LEVELED OFF AT FL120, IAW QRH REDUCED POWER 20 NR, AFTER 10 MINUTES OIL TEMP WAS 123-124. IAW QRH SHUTDOWN NR 1 ENGINE AND RETURNED TO BASE. EMERGENCY DECLARSDR 2012FA0000255Oil Cooler · crackedPILOT REPORTED ODOR OF BURNED ELECTRICAL WIRING FOLLOWED BY ENGINE OIL ENTERING CABIN AT FOOT PEDAL AREA, LOSS OF ENGINE OIL PRESSURE INDICATED. EMERGENCY LANDING, SAFELY LANDED APPROX 5 MINUTES AFTER FIRST NOTICING THE ENGINE OIL PRESSURE LOSS. FOUND ENGINSDR CA120522019Valve · malfunctioned(CAN) CREW REPORT: DURING CLIMB, PASSING FL 150 WE NOTICED HIGH OIL TEMP. ON ENGINE NR 1. 114 DEG. STEADY. ACCORDING TO CHECK LIST WE HAVE TO SHUTDOWN AFFECTED ENGINE. NR 1 AFTER 20 MIN, WE SAFELY LAND AT AIRPORT. REPLACEMENT OF MAIN SCAVANGE OIL FILTERS PSDR ALGA2012041801Shaft · shearedOIL COOLER BLOWER HAS A SHEARED SHAFT.SDR CA120426005Bypass Valve · failed(CAN) FLIGHT CREW ELECTED TO DO AN AIR-RETURN AFTER SHUTTING DOWN NR 2 ENGINE IN FLIGHT DUE TO HIGH OIL TEMP AT 112 DEGREES. CREW FOLLOWED QRH AND SHUTDOWN NR 2 ENGINE. CREW STATED THAT WHILE RISING ON CLIMB OUT, F/O BROUGHT TO HIS ATTENTION THAT THE NR 2 ENGSDR CA120522014Valve · malfunctioned(CAN) ATB TO BASE DUE TO NR 2 ENGINE HIGH OIL TEMP. OVERWEIGHT LANDING. NR 2 OIL COOLER THERMAL VALVE REPLACED.SDR UALA2012041502262Bypass Valve · leakingNR 1 ENGINE HIGH OIL CONSUMPTION EXCEEDS LIMIT. REPLACED FUEL OIL HEAT EXCHANGER PER MM AND FUEL OIL HEAT EXCHANGER BYPASS VALVE PER MM. ACCMP'D TEST 3 PER AMM NO LEAKS NOTED AND NO FAULTS AFTER LEFT ENG IDLE RUN.SDR UALA2012040602128Oil Cooler · leakingNR 1 ENGINE HAS OIL LEAKING AFT OF DRAIN MAST FROM BOTH SIDES OF COWL LATCH. NO EVIDENCE OF OIL LEAK FROM ENGINE DRAINS WITH FAN COWL OPENED DURING IDLE RUN, ALSO CHECKED OIL COOLER AREA ON RT SIDE UNDER FAN COWL, EVIDENCE OF OIL LEAK AT OIL COOLER WITHIN 10SDR UALA2012040302066Oil Cooler · leakingDURING ENGINE RUN, FOUND WETNESS AT BOTTOM OF FUEL OIL COOLER BOTTOM FWD CAP. UNABLE TO IDENTIFY POSITIVE SOURCE, WETNESS IS ENTIRE BOTTOM AREA OF OIL COOLER. UNABLE TO FIND LEAK ON NR 2 ENG FUEL OIL COOLER. REPLACED FUEL OIL COOLER.SDR UALA2012033002003Oil Cooler · failedNR 1 ENG HIGH OIL CONSUMPTION EXCEEDS LIMIT. FOUND FUEL ON OIL SIDE OF FCOC, REPLACED FUEL CONTROL OIL COOLER PER MM.SDR CA120424010Bypass Valve · malfunctioned(CAN) AFTER SETTING CRUISE POWER, THE NR 1 ENGINE OIL TEMPERATURE WAS NOTED AT ABOUT 100 DEGREES AND RISING. WE REFERRED TO THE QRH AND ACTIONED THE APPROPRIATE QRH REF ITEMS WHEN THE OIL TEMPERATURE REACHED 107 DEGREES. WE RETURNED TO LANDING. THE OIL TEMPESDR IPXA12M72186Valve · inoperativeNR 3 ENGINE HIGH OIL TEMPERTURE LEVEL 2 OIL TEMP HIT 162. PERFORMED FIM 79-00-00 THRU FIG 6, BLOCK 6. FOUND CFSD FAULT 351-18 ENG AOC T/M CKT. R & R AIR OIL COOLER VALVE IAW MM 79- 21-01. OPS CHECKS NORMAL, NO LEAKS NOTES. R & R MAIN ENG OIL FILTER & INSPECTSDR CA120222008Oil Cooler · failed(CAN) OIL COOLER HAD ONLY BEEN INSTALLED THE MONTH BEFORE AND FAILED IN THE SAME AREA AS THE PREVIOUS COOLER LEADING TO AN INFLIGHT SHUTDOWN OF THE ENGINE. THE PROPELLERS WERE BALANCED, ENGINE ATTACH STRUCTURE INSPECTED, OIL COOLER MOUNTING INSPECTED ETC. BUTSDR CA120203005Bypass Valve · failed(CAN) HIGH OIL TEMPERATURE ON NUMBER 1 ENGINE. TEMP REACHED 108 DEG C. CREW FOLLOWED QRH PROCEDURES AND CONDUCTED AN AIR RETURN TO BASE. LINE MAINTENANCE INVESTIGATION IDENTIFIED THE PROBABLE CAUSE OF THE DEFECT TO BE FAILURE OF THE OIL COOLER BYPASS VALVE. VASDR CA120125006Oil Cooler · leaking(CAN) PILOTS NOTICED OIL PRESSURE DECREASING DURING CRUISE AND SHUTDOWN ENGINE AND LANDED AT NEAREST AIRPORT. MAINTENANCE DISCOVERED OIL UNDERNEATH THE PLANE IN THE GEAR WELL AREA AND THE OIL LEVEL WAS LOW AS WELL. GROUND RUNS INDICATED THAT THE OIL COOLER WASSDR UALA2012010900196Oil Cooler · faultedSTATUS MSG IDG VALVE CLSD L REPLACED IDG AIR-OIL HEAT EXCHANGER-COOLER VALVE PER MM. RAN ENGINE IDLE FOR 5 MIN LEAK AND OPS CHECKED OKAY.SDR CA120111008Heat Exchanger · failed(CAN) DURING CRUISE ENGINE NR 1 ECAM ADVISORY FOR LOW QTY, OIL QTY AT 3.6. ACFT DIVERTED. FUEL OIL HEAT EXCHANGER AT FAULT. FOUND OIL IN HEAT EXCHANGER FUEL FILTER. THE FUEL OIL HEAT EXCHANGER HAS BEEN SENT FOR INVESTIGATION.SDR TRBA201200603Flap · brokenTHE CREW ABORTED TAKEOFF FOR STRONG SURGE. ENGINE PERAMETERS WERE OK . NORMAL FOR TAKEOFF. FELT LIKE A BLOWN TIRE OR STUCK BRAKES. ACFT DID NOT PULL IN EITHER DIRECTION. ACFT REMOVED FROM SERVICE. FOUND LT ENGINE OIL COOLER 1 FLAP STUCK AND THE OTHER FLAPSDR CA120125016Bypass Valve · failed(CAN) ON CLIMB THROUGH FL120, THE NR 1 ENGINE OIL TEMPERATURE WAS NOTED TO BE 112 DEG C AND SLOWLY INCREASING. THE HIGH OIL TEMPERATURE IN FLIGHT (107 OR ABOVE) QRH CHECKLIST WAS REFERRED TO AND FOLLOWED. AFTER THE 10 MINUTE REQUIREMENT THE OIL TEMPERATURE REMSDR 29GA93679111511AOil Cooler · defectiveFLIGHT: 3564 BIL/BIL AIR RETURN DUE TO HIGH OIL TEMPERATURE ON LEFT ENGINE, LEFT ENGINE WAS SHUT DOWN AS A PRECAUTION IN FLIGHT. REPLACED NUMBER ONE OIL COOLER LEAK CHECK AND OPERATIONAL CHECK GOOD.SDR UALA2011110906117Heat Exchanger · leakingDURING ENGINE RUNS, EVIDENCE OF A LEAK POSSIBLE FUEL, DRIPPING OUT OF NR 2 ENGINE DRAIN VENT. FOUND DRAIN NR 2 (AIR-OIL HEAT EXCHANGER VALVE) LEAKING AT 15 DROPS A MINUTE DURING ENG OPERATION & CEASES WITH ENG NOT RUNNING. OK FOR 50 FLT HRS. AIR OIL HEAT EX
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