# Service difficulty reports: JASC 7921

A list on [JASC 7921](https://openairdocs.org/jasc/7921.md).

Reports filed under 7921 · Engine Oil Cooler, newest first.

Page 1 of 20 · 982 reports

- [SDR SWAA2026101902771](https://openairdocs.org/sdr/SWAA2026101902771.md): Oil Cooler · damaged · Oct 17, 2026 · N8931L · Boeing 7378
  > BIRD STRIKE NR 2 ENGINE, ODOR, NO ABNORMAL INDICATIONS. ODOR WENT AWAY AFTER 30 SECONDS. REMOVED AND REPLACED RIGHT UPPER NR 2 ENGINE SURFACE AIR / OIL COOLER IAW AMM 79-21-02. REMOVED AND REPLACE OGV PLATFORMS UPPER RIGHT SIDE IAW AMM 72-21-09.
- [SDR A6WA202609028910](https://openairdocs.org/sdr/A6WA202609028910.md): Heat Exchanger · faulted · Sep 2, 2026 · N420AW · Cndair CL6002B19
  > DURING CLIMB NR 2 ENG OIL TEMP REACHED 150'C. C/W QRH -PULLED PWR BACK AND REDUCED PWR. ENG OIL TEMP RETURNED TO NORMAL OPERATING RANGE. NR 2 ENG OIL TEMP CONSTANTLY 20' HOTTER THAN NR 1. MC- ON GRD @ IDLE READS 10-15' HOTTER THAN NR 1. AIRCRAFT REMOVED FROM
- [SDR UIEA2026080700685](https://openairdocs.org/sdr/UIEA2026080700685.md): Heat Exchanger · faulted · Aug 7, 2026 · N408MC · Boeing 74747UF
  > ENG 2 OIL TEMP EICAS MSG. FL 380 MAX OIL TEMP APPROX 194. ENG 2 SHUT DOWN. PERFORMED FIM 79-00, FT FIG 109. R & R FUEL/OIL HEAT EXCHANGER IAW AMM 79-21-01-404-014-J00, OPS CHECK & LEAK CHECKED GOOD. RUN ENG NR 2 AT DIFFERENT POWER SETTINGS AND OIL TEMP NORMA
- [SDR CALA2026071617838](https://openairdocs.org/sdr/CALA2026071617838.md): Transmitter · faulted · Jul 14, 2026 · N76522 · Boeing 737824
  > OIL FILTER BYPASS MESSAGE SHOWS ON ENGINE DISPLAY ENG 1 AFTER STARTUP. MESSAGE DISSAPEARED. MESSAGE REAPPEARED AFTER TAKE OFF. DIVERTED TO CVG. C/W EEC BITE FIM 73-00 TASK 801 & FOUND NO RECENT FAULTS. REMOVED & INSPECTED SCAVENGE FILTER PER MEL 7902A & AM
- [SDR DALA2026060503403](https://openairdocs.org/sdr/DALA2026060503403.md): Oil Cooler · odor · Jun 4, 2026 · N689DL · Boeing 757232
  > CREW REPORTED EXHAUST ODOR IN AFT CABIN ON TAKEOFF AND TOP OF DESCENT. EMERGENCY DECLARED DURING APPROACH. ROAD TRIP. REPLACED AIR/OIL COOLER. (LP 8075720, 1628492 - AIRCRAFT WAS GROUNDED)
- [SDR DALA2026041702451](https://openairdocs.org/sdr/DALA2026041702451.md): Heat Exchanger · leaking · Apr 15, 2026 · N178DN · Boeing 767332
  > DIVERTED TO HND FOR LEFT ENGINE OIL QUANTITY DECREASED TO ZERO WITH STABLE TEMPERATURE AND PRESSURE. RIGHT ENGINE ALSO HAD OIL QUANTITY DECREASING WITH STABLE TEMPERATURE AND PRESSURE. REPLACED BOTH LEFT AND RIGHT ENGINE AIR OIL HEAT EXCHANGER FOR LEAKING.(8
- [SDR AALA202601163763](https://openairdocs.org/sdr/AALA202601163763.md): Indicator · faulty · Jan 15, 2026 · N934NN · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: LOW OIL QUANTITY INDICATION ON THE NUMBER 2 ENGINE, WITH ERRATIC LOW OIL PRESSURE ENTERING THE AMBER RANGE. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT IAH. REMOVED AND REPLACED NUMBER 2 ENGINE CLOGGING IN
- [SDR AALA202601066384](https://openairdocs.org/sdr/AALA202601066384.md): Lubrication Unit · leaking · Dec 18, 2025 · N301NW · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DURING CRUISE NEAR TOP OF DECENT AT FL210, #1 ENGINE OIL QUANTITY INDICATED 0, SHUTDOWN NUMBER 1 ENGINE. AIRCRAFT EMERGENCY LANDED SAFELY AT OMA. **SUPPLEMENTAL REPORT FOR (AALA202512196384) SUBMITTED 12
- [SDR AALA202601063655](https://openairdocs.org/sdr/AALA202601063655.md): Scavenge Pump · leaking · Dec 18, 2025 · N301NW · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DURING CRUISE NEAR TOP OF DECENT AT FL210, #1 ENGINE OIL QUANTITY INDICATED 0, SHUTDOWN NUMBER 1 ENGINE. AIRCRAFT EMERGENCY LANDED SAFELY AT OMA. **SUPPLEMENTAL REPORT FOR (AALA202512196384) SUBMITTED 12
- [SDR 2025FA0000408](https://openairdocs.org/sdr/2025FA0000408.md): Oil Cooler · cracked · Jun 18, 2025 · N603DK · Cirrus SR22
  > WHILE PERFORMING AN OIL CHANGE, IT WAS DISCOVERED THE DIAGONAL STIFFENERS ON BOTH SIDES OF THE OIL COOLER WERE BROKEN AND HALF GONE. THE OIL COOLER WAS NOT LEAKING. THE OIL COOLER WAS REPLACED WITH NEW. INSTALLED PART NUMBER: 658767, SERIAL NUMBER: H22-12342-2
- [SDR CALA2025042104036](https://openairdocs.org/sdr/CALA2025042104036.md): Heat Exchanger · faulted · Apr 18, 2025 · N782UA · Boeing 777222
  > #2 FUEL/OIL COOLER NEEDS REPLACED AS PRECAUTIONARY MEASURE DUE TO FUEL ODOR IN DRAINED IDG OIL. STARTED TO DISCONNECT THE FUEL/OIL COOLER REF AMM 79-21-01 UP TO STEP G. REMOVED #2 ENGINE FUEL/ OIL COOLER REF AMM 79-21-01. INSTALLED NEW ENG 2 FUEL/OIL COOLER T
- [SDR AALA202504011909](https://openairdocs.org/sdr/AALA202504011909.md): Heater · failed · Mar 21, 2025 · N970NN · Boeing 737823
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: NUMBER 1 ENGINE FAIL (COMPRESSOR STALL), ENGINE 1 SHUTDOWN BY CREW IN DESCENT; AIRCRAFT DIVERTED TO AND LANDED SAFELY AT MIA. **SUPPLEMENTAL REPORT FOR (AALA202503240627): REMOVED AND REPLACED HMU-HYDROM
- [SDR 2025F00008](https://openairdocs.org/sdr/2025F00008.md): Exchanger · leaking · Jan 2, 2025 · N368AR · Boeing 73786J
  > ON FLIGHT ENGINE OIL CONSUMPTION HIGH
- [SDR MTNA20241212002](https://openairdocs.org/sdr/MTNA20241212002.md): Oil Cooler · cracked · Dec 12, 2024 · N914FX · Aerosp ATR42300
  > DURING DECENT OF FLIGHT 7553 DLH-MSP WITH AIRCRAFT N914FX, THE CAPTAIN REPORTED THE NUMBER TWO OIL PRESSURE GAUGE WAS FLUCTUATING BETWEEN 0-20 PSI AND LOW OIL PRESSURE WAS INDICATED ON THE CAP. THE FLIGHT CREW PERFORMED THE #2 ENGINE SHUT DOWN PROCEDURES, AN E
- [SDR HALA20241209352](https://openairdocs.org/sdr/HALA20241209352.md): Heat Exchanger · leaking · Dec 7, 2024 · N392HA · Airbus A330243
  > ETOPS - DURING PDSC, NOTED OIL COATING #2 ENG FROM HEAT EXCHANGER AREA & OIL LEVEL AT -2. FILLED OIL & RAN #2 ENG @ IDLE FOR 5 MINS. DISCOVERED SIGNIFICANT OIL LEAK FROM HEAT EXCHANGER MATRIX. REMOVED & REPLACED #2 ENG AOHE PER AMM 79-21-51. OPS & LEAK CHECK G
- [SDR QMLA2024081220097](https://openairdocs.org/sdr/QMLA2024081220097.md): Oil Cooler · failed · Aug 8, 2024 · N370AM · Bell 407
  > DURING TAKEOFF AND INITIAL CLIMB FROM KFMM, THE ENGINE OIL TEMPERATURE EXCEEDED ITS MAXIMUM LIMIT OF 107°C, REACHING A PEAK OF 116°C. THE EXCEEDANCE WAS IDENTIFIED SHORTLY AFTER TAKEOFF, PRIOR TO TRANSITIONING TO CRUISE FLIGHT. UPON OBSERVING THE ABNORMAL TEM
- [SDR NACA2024060300001](https://openairdocs.org/sdr/NACA2024060300001.md): Valve · failed · Jun 3, 2024 · N563NC · Boeing 7673BG
  > FOUND THE L ENG EEC MSG. REPLACED #1 ENG AIR/OIL HEAT EXCHANGER VALVE IAW AMM 79-21-09
- [SDR GRTA20240307001](https://openairdocs.org/sdr/GRTA20240307001.md): Heat Exchanger · leaking · Mar 6, 2024 · N531AW · Beech B300
  > WHILE FLYING AT FL 320 #2 RIGHT SIDE ENGINE LOST OIL PRESSURE INSTANTLY. REQUESTED DIVERT TO KHSV. ON LANDING NOTED OIL DRIPPING FROM BOTTOM OF COWLING. MX FOUND THE OIL COOLERS WELD SEAM SPLIT OPEN (CRACKED). REPLACED OIL COOLER.
- [SDR M3XA20231216002](https://openairdocs.org/sdr/M3XA20231216002.md): Bypass Valve · unserviceable · Dec 16, 2023 · N135WL · Urocop EC135P2
  > PILOT REPORTED #1 ENGINE OIL TEMPERATURE EXCEEDANCE OF 129.5. PLACED THE #1 ENGINE TO IDLE AND EXECUTED A SUCCESSFUL PRECAUTIONARY LANDING WITH A PATIENT ON BOARD TO KROA AIRPORT. THE PATIENT WAS TRANSPORTED BY GROUND. THE MECHANIC REPLACED THE #1 ENGINE OI
- [SDR ASAA2022121841193](https://openairdocs.org/sdr/ASAA2022121841193.md): Oil Cooler · cracked · Dec 18, 2022 · N977AK · Boeing 7379
  > FOUND CRACK ON #1 ENGINE SURFACE AIR OIL COOLER LH. GROUNDED - YES. REMOVED AND REPLACED #1 ENG SACOC REF B737-9 AMM 79-21-02.
- [SDR GTIA2022111836780](https://openairdocs.org/sdr/GTIA2022111836780.md): Oil Cooler · fault message · Nov 15, 2022 · N644NK · Airbus A320232
  > AFTER TAKEOFF AT ABOUT 600FT ON CLIMBOUT THE #2 ENG ADVISORY OIL AT 5.5 PULSED ONCE WE LEVELED OFF AT 5000 FT OIL QT ROSE TO 9.0 QT ONCE WE ACCELERATED OIL 9QT DROPPED AND PULSED BACK TO 6.0 QT ON DESCENT TO LAND IT ROSE TO 10 QT AND ONCE ON TAXI IT ROSE TO 15
- [SDR CALA2022102802987](https://openairdocs.org/sdr/CALA2022102802987.md): Oil Filter · clogged · Oct 28, 2022 · N69818 · Boeing 737924ER
  > ENG OIL FILTER BYPASS SCREEN. TOMC CONTACTED AND WERE ADVICED TO PERFORM REQUIRED INSPECTIONS BEFORE CREATING DIP IRW STEP 5.G.(7).(H).(1), AS WELL AS, REQUESTED INSPECTION OF OIL FILTER FOR DEBRIS. DEBRIEF OF CREW TOLD WAS #2 ENGINE FOLLOWED FIM 79-05 TASK 81
- [SDR CALA2022100702740](https://openairdocs.org/sdr/CALA2022100702740.md): Chip Detector · fod · Oct 7, 2022 · N39297 · Boeing 737824
  > NO OIL QTY RED OIL PRESS 11 NORMAL LANDING WINDMILL 15 MINUTES FOUND WET AND FINGER TIGHT LOOSE AFT BEARING OIL SUPPLY LINE R+R #1 ENGINE OIL SUPPLY FILTER PER AMM 79-21-03. NO METAL OR REMOVED AND INSPECTED #1 ENGINE MAG CHIP DETECTORS. NO METALLIC REMOVED AN
- [SDR YENA2022090500869](https://openairdocs.org/sdr/YENA2022090500869.md): Chip Detector · false indication · Sep 4, 2022 · N4048J · Airbus A321271N
  > FLT#20, LHR-JFK. (ETOPS) 'ETOPS GROUND VERIFICATION REQUIRED DUE TO CHIP DETECTION MSG ON ENG 2; ENG #2 GROUND VERIFICATION ACCOMPLISHED REF LOG PAGE 3521797, ITEM #1 (HIG POWER ASSURANCE TEST COMPLETED ALL ENG PARAMETERS NORMAL AND FAULTS NOT PRESENT. REF AMM
- [SDR I5PA2022081668804](https://openairdocs.org/sdr/I5PA2022081668804.md): Scavenge Pump · faulty · Aug 16, 2022 · N688SL · Boeing 757230
  > L ENG TAIL PIPE FIRE. R/R SCAVENGE PUMP PER AMM 79-21-04.
- [SDR 2022FA0000361](https://openairdocs.org/sdr/2022FA0000361.md): Oil Cooler · cracked · Jul 20, 2022 · Piper PA18
  > ORIGINAL OIL COOLER REPLACED 05/27/2022 DUE TO CRACKED MOUNTING FLANGES. NEW COOLER, S/N 4467, FAILED AFTER 12 HOURS IN SERVICE, CRACKED ADJACENT TO TOP FITTING BOSS, RESULTING IN 5+ QUART OIL LOSS DURING FLIGHT, AND EMERGENCY LANDING. INSTALLED REPLACEMENT
- [SDR CALA2022071801809](https://openairdocs.org/sdr/CALA2022071801809.md): Line · leaking · Jul 18, 2022 · N12114 · Boeing 757224
  > FL360 CLMB-LOW OIL QTY R ENG-FLWD BY R ENG OIL PRESS LT-THEN PRESS INTO RED BND. LEAKED DURING ENGINE RUN.REPLACED OIL LINE. RAN ENGINE AT IDLE POWER AND OBSERVED NO OIL LEAKS. QUANTY AND PRESSURE REMAIN STEADY WITH NO LOSS OF QUANTY OR ACFT OK FOR SVC.
- [SDR CALA2022062901607](https://openairdocs.org/sdr/CALA2022062901607.md): Lubrication Unit · faulty · Jun 29, 2022 · N68453 · Boeing 737924ER
  > FLIGHT CREW REPORTED OIL FILTER BYPASS ILLUMINATED IN FLIGHT FOR #1 ENGINE PERFORMS FIM 79-05 TASK 817, NO FAULTS SHOWN ON EEC BITE, #1 ENG BYPASS LIGHT AT CRUISE, CREW FOLLOW POCEDURE PERFORMED FMC CDU BITE NO FAULTS NOTED FILTER BY PASS STATUS THROTTLE BACK
- [SDR A6WA202206088189](https://openairdocs.org/sdr/A6WA202206088189.md): Oil System · warning message · Jun 8, 2022 · N444ZW · Cndair CL6002B19
  > AT CRUISE AT FL280, RECEIVED RT ENG OIL PSI WARNING MESSAGE. OIL PSI WAS FLUCTUATING IN THE GREEN BAND. C/W QRH. REDUCED POWER TO IDLE. DIVERTED TO ICT. AROUND 8,000FT, OIL PSI WENT INTO THE RED AND REMAINED THERE FOR THE REST OF THE FLIGHT. SHUT ENGINE D
- [SDR AALA202205106206](https://openairdocs.org/sdr/AALA202205106206.md): Oil Cooler · defective · May 6, 2022 · N536UW · Airbus A300*
  > AIRCRAFT WAS GROUNDED: #1 ENGINE OIL QUANTITY WENT TO 2.5. ALL OTHER PARAMETERS NORMAL. THEN DROPPED TO 2.0 AND SLOWLY LOST OIL PRESSURE. WENT TO 68 PSI AIRCRAFT DIVERTED TO DFW. KEPT ENGINE RUNNING ALL PARAMETERS EXCEPT OIL QUANTITY AND PRESSURE STAYED NOR
- [SDR NACA2022050500001](https://openairdocs.org/sdr/NACA2022050500001.md): None · none · May 5, 2022 · N379CX · Boeing 767323
  > DURING ENGINE #2 BORESCOPE INSPECTION FOUND FUEL PUMP LEAKING. (FUEL IN AND FUEL OUT PORTS) REMOVED AND REPLACED FUEL/OIL HEAT EXCHANGER GASKETS IAW B767 AMM 79-21-01, PERFORMED ENGINE GROUND TEST - IDLE POWER OPS AND LEAK CHECK GOOD PER AMM 71-00-00
- [SDR HALA2022050300097](https://openairdocs.org/sdr/HALA2022050300097.md): None · none · May 2, 2022 · N390HA · Airbus A330243
  > ETOPS - #1 ENG OIL LEAK AT 6 O'CLOCK POSITION UNDER GAS GENERATOR FAIRINGS // PERFORMED ENG RUN LEAK CHK, FOUND TEE FITTING AND OPPSITE SIDE OF LINES LEAKING. ITEMS 100 AND 500 REF ROLLSROYCE IPC 79-22-49-08. 05/02/22 2020495. REPLACED 2 P/N AS43013-12 O-RINGS
- [SDR A6WA202204308176](https://openairdocs.org/sdr/A6WA202204308176.md): None · none · Apr 30, 2022 · N408AW · Cndair CL6002B19
  > RIGHT ENGINE OIL PRESSURE WENT TO 0 PSI DURING DECENT PLUS RIGHT ENGINE PRESSURE WARN. RAN QRH. RIGHT ENGINE FAILED SHORTLY AFTER WHILE RUNNING SINGLE ENGINE QRH. AFTER OIL WARNING, RAN QRH, AFTER APPROXIMATELY 3 MINUTES ENGINE SHUT DOWN WITH VIBE ON OWN ****A
- [SDR WX0A1900010074058](https://openairdocs.org/sdr/WX0A1900010074058.md): Lubrication Unit · oil consumption · Apr 8, 2022 · N223NV · Airbus A320214
  > 1 WHILE REACHING 10,000 ' WE GOT A ENG # 2 ECAM ADVISORY OIL QUANTITY (3.5) WE FOLLOWED THE ADVISORY CHECK LIST AND INDICATION BECAME DOUBLE XX AMBER 2 ABOUT 3 MINUTES LATER WE GOT ENG # 2 ECAM ADVISORY PSI (DROP) 3 IT FOLLOWED BE AN ECAM ENG # 2 OIL LOW PRESS
- [SDR CALA2022011800170](https://openairdocs.org/sdr/CALA2022011800170.md): Filter · warning message · Jan 17, 2022 · N57439 · Boeing 737900
  > OIL FILTER BYPASS LGT ILUMM ON TAKEOFF ROLL EXTINGUISHED IN AIR CREW REPORTS #2 ENGINE FOR #2 ENGINE FOUND FILTER BYPASS INDICATOR POPPED, REMOVED PHOTOS ATTACHED PERFORMED FIM TASK 79-05 TASK817 UP TO STEP 3 B 1 " CHIP SCAVENGE FILTER AND SUPPLY FILTER AND
- [SDR 2022F00068](https://openairdocs.org/sdr/2022F00068.md): Heat Exchanger · leaking · Jan 3, 2022 · Boeing 737800*
  > FUEL LEAK AT RIGHT ENGINE OIL/FUEL HEAT EXCHANGER DRAIN AND FUEL SERVO, DURING TRANSIT CHECK, IT WAS DETECTED A FUEL LEAK AT RIGHT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION AT RIGHT ENGINE, DETECTING FUEL LEAK OUT OF LIMITS FROM MAIN OIL / FUEL HEAT EXC
- [SDR A6WA202112017999](https://openairdocs.org/sdr/A6WA202112017999.md): None · none · Nov 30, 2021 · N420AW · Cndair CL6002B19
  > ON TAKE-OFF REC'D RT ENG OIL WARNING MESSAGE. MESSAGE WAS INTERMITTENT. OIL PSI FLUCTUATED BETWEEN 25 AND 35 PSI. OIL TEMP WAS NORMAL. MESSAGE WAS LESS INTERMITTENT WITH REDUCED POWER. EVENT DESCRIPTION: EN ROUTE, THE #2 ENGINE OIL PRESSURE BEGAN TO
- [SDR CALA2021111102092](https://openairdocs.org/sdr/CALA2021111102092.md): None · leaking · Nov 11, 2021 · N773UA · Boeing 777222
  > REF LOG PAGE 7405211. FOUND #1 ENG AIR/OIL HEAT EXCHANGER LEAKING EXTERNALLY FROM WITHIN THE COOLING FINS, REF PICTURES. REMOVED #1 ENG AIR/OIL HEAT EXCHANGER REF MM 79-21-08. OLD PART STORED ON A CART BELOW ENGINE WITH HARDWARE. ADD EMP:U121006 REPLACED #1 EN
- [SDR 2021F00257](https://openairdocs.org/sdr/2021F00257.md): Heat Exchanger · leaking · Sep 20, 2021 · Boeing 737800*
  > OIL LEAK BY LEFT ENGINE HEAT EXCHANGER OIL FUEL, DURING OVERNIGHT CHECK AT MEX STATION, DUE TO LEFT ENGINE OPERATIONAL TEST, IT WAS DETECTED AN OIL LEAK BY LEFT ENGINE HEAT EXCHANGER OIL FUEL. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING AN OIL LEAK BY
- [SDR GTIA2021092135999](https://openairdocs.org/sdr/GTIA2021092135999.md): None · none · Sep 18, 2021 · N663NK · Airbus A321231
  > CAPTAIN REPORT FUEL LEAKING FROM #1 ENG, FUEL LEAK INCREASE ON DESCENT-REMOVED FCOC REPLACED PACKING AND REINSTALLED FCOC OPS AND LEAK CHECK GOOD IAW AMM 79-21-43 NK2224 DUE 2/22 NK1926 DUE 2/22
- [SDR 2021FA0000285](https://openairdocs.org/sdr/2021FA0000285.md): Heat Exchanger · damaged · Sep 13, 2021 · N116BG · Cessna 310
  > RIGHT ENGINE FUEL LEAK OF HEAT EXCHANGER OIL-FUEL DRAIN, DURING TRANSIT CHECK, IT WAS DETECTED A FUEL LEAK AT RIGHT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING THE RIGHT ENGINE FUEL LEAK OF HEAT EXCHANGER OIL-FUEL DRAIN; RH ENGINE HEAT EXCHANGE
- [SDR ASMF202110001](https://openairdocs.org/sdr/ASMF202110001.md): Lubrication Unit · failed · Jun 27, 2021 · N875AM · Boeing 737852
  > AIRCRAFT RETURNED OF FLIGHT DUE TO DURING CLIMB, THE RIGHT ENGINE PRESENTED LOW OIL PRESSURE AND QUANTITY; SO FLIGHT CREW IMMEDIATELY PERFORMED THE RIGHT ENGINE SHUTDOWN. MAINTENANCE PERSONNEL PERFORMED REVISION TO RIGHT ENGINE, DETECTING THE LUBRICATION UNIT
- [SDR ASMF2021F00108](https://openairdocs.org/sdr/ASMF2021F00108.md): Lubrication Unit · faulted · Jun 27, 2021 · N875AM · Boeing 737800*
  > 28.06.2021 14:32 ENG 2 SHUTDOWN ON FLIGHT DUE LOW OIL PRESSURE AND QUANTITY. AIRCRAFT RETURNED OF FLIGHT DUE TO DURING CLIMB, THE RIGHT ENGINE PRESENTED LOW OIL PRESSURE AND QUANTITY; SO FLIGHT CREW IMMEDIATELY PERFORMED THE RIGHT ENGINE SHUTDOWN. MAINTENANCE
- [SDR HALA2021051100061](https://openairdocs.org/sdr/HALA2021051100061.md): Igniter · faulted · May 7, 2021 · N202HA · Airbus A321271N
  > ETOPS - ENG START 2 FAULT. ENG 2 IGN A FAULT. SUCCESSFUL AUTOSTART AFTER SECOND ATTEMPT. BTB// REMOVED AND REPLACED IGN PER AMM 74-21-01-00-801-A ON #2 ENG. OPS CHECK GOOD. OK TO CONTINUE
- [SDR HALA2021021600019](https://openairdocs.org/sdr/HALA2021021600019.md): Oil Cooler · defective · Feb 13, 2021 · N375HA · Airbus A330243
  > ETOPS - ON PDC, FOUND #1 ENG AIR/OIL HEAT EXCHANGE 4073265 LEAKING OIL INTERNALLY. // REMOVED #1 ENG AIR/OIL HEAT EXCHANGER PER AMM 79-21-51-000-803-A 13 FEB 2021 INSTALLED #1 ENG AIR OIL HEAT EXCHANGER PER AMM 79-21-51. OPS CHECK AND LEAK CHECK GOOD. COOLER,
- [SDR M3XA20201019006](https://openairdocs.org/sdr/M3XA20201019006.md): Bypass Valve · failed · Oct 19, 2020 · N836CS · Urocop EC135P2
  > PILOT PERFORMED A PL WITH A PATIENT ON BOARD AND REPORTED NR 2 ENGINE OIL TEMPERATURE ABOVE NORMAL LIMITS IN FLIGHT, PEAKED AT 134 DEGREES. MECHANIC INSPECTED ENGINE CHIP DETECTORS, DRAINED AND RESERVICED ENGINE OIL AND REPLACED NR 2 ENGINE OIL BYPASS VALVE.
- [SDR MK1Y20200407010](https://openairdocs.org/sdr/MK1Y20200407010.md): Oil Cooler · cracked · Apr 7, 2020 · N153DL · Boeing 7673P6
  > DURING MAINTENENCE FOUND DEFORMATION WITH CRACK 0.78" ON AIR/OIL COOLER P/N 35E38-5 AFT UPPER AREA.
- [SDR ASAA2020030932355](https://openairdocs.org/sdr/ASAA2020030932355.md): Heat Exchanger · leaking · Mar 4, 2020 · N468AS · Boeing 737990ER
  > ON WALKAROUND FOUND FUEL LEAKING FROM #2 ENG BOTTOM DRAIN MAST AREA. GROUNDED - YES. RAN #2 ENG AND ACCOMPLISHED B737-900 AMM 71-71-00-200-801-F00, ENG VENTS AND DRAINS INSPECTION FOUND FUEL DRIP FROM MAIN OIL/FUEL HEAT EXCHANGER AND DRAIN TUBE, WITHIN LIMITS
- [SDR HALA2019121000511](https://openairdocs.org/sdr/HALA2019121000511.md): Warning Message · false activation · Dec 9, 2019 · N374HA · Airbus A330243
  > ETOPS SIGNIFICANT SYSTEM - ENG 2 AIR EX-CHANGER FAULT. // PERFORMED TSM TASK 79-20-00-810-810-A. BITE CHECK OF FADEC SYSTEM INDICATED NO FAULTS. PERFORMED GVI OF AIR/ OIL HEAT EX-CHANGER FOR DAMAGE. NON FOUND. OPERATED VALVE AND FOUND MOVEMENT IS FREE AND
- [SDR ASAA2019111211285](https://openairdocs.org/sdr/ASAA2019111211285.md): Cooler · leaking · Nov 11, 2019 · N442AS · Boeing 737990ER
  > FOLLOW-UP TO #2 IDG FREQUENT SERVICING. GROUNDED - YES. ACCOMPLISHED STEPS 1-3 AND FOUND #2 IDG AIR/OIL COOLER LEAKING, REMOVED AND REPLACED #2 IDG AIR/OIL COOLER PER B737-900 AMM 24-11-21 LEAK CHECKS GOOD,NO OTHER DEFECTS NOTED-ETOPS SIGNIFICANT SYSTEM, GROUN

Next page: https://openairdocs.org/jasc/7921/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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
```

This list as a web page: https://openairdocs.org/jasc/7921/reports

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