# Service difficulty reports: JASC 7920

A list on [JASC 7920](https://openairdocs.org/jasc/7920.md).

Reports filed under 7920 · Engine Oil Distribution (Airframe Furnished), newest first.

Page 1 of 15 · 734 reports

- [SDR DALA2026102105783](https://openairdocs.org/sdr/DALA2026102105783.md): Pump · misconfigured · Oct 21, 2026 · N405DX · Airbus A330941
  > DIVERTED TO JFK DUE TO THE RT ENGINE OIL PUMP MISCONFIGURATION. REPLACED OIL PUMP. OPS CHECK OK. (9394640) AIRCRAFT WAS GROUNDED.
- [SDR IPXA2026040890099](https://openairdocs.org/sdr/IPXA2026040890099.md): Clamp · broken · Apr 8, 2026 · N352UP · Boeing 76734AF
  > BROKEN CLAMP, NR 1 ENG LOWER D SUMP OIL SUPPLY TUBE FWD SUPPORT.
- [SDR AALA202602175759](https://openairdocs.org/sdr/AALA202602175759.md): Oil System · faulted · Feb 14, 2026 · N770AN · Boeing 777223
  > AIRCRAFT WAS GROUNDED: ENGINE OIL QUANTITY AND PRESSURE ISSUE. DECESION MADE TO DIVERT TO PHX. FLIGHT DID NOT DECLARE EMERGENCY AND DID NOT LAND OVERWEIGHT. FLIGHT LANDED WITHOUT INCIDENT AND TAXIED TO GATE ON OWN POWER. (OPEN)
- [SDR 3EJA202603240001](https://openairdocs.org/sdr/3EJA202603240001.md): Oil Cooler · failed · Feb 4, 2026 · N739JS · Cessna 525B
  > RECEIVED RED OIL PRESSURE INDICATION (POINTER AND DIGITS) LEFT ENGINE IN FLIGHT. SHUT DOWN LEFT ENGINE, DECLARED AN EMERGENCY AND DIVERTED TO KCHS. FOLLOWED CHECKLIST PAGES D4 LOW OIL PRESSURE INDICATION, A2 ENGINE FAILURE/SHUTDOWN AND Y1 SINGLE ENGINE APPROAC
- [SDR DALA2025061404500](https://openairdocs.org/sdr/DALA2025061404500.md): Oil Filter · clogged · Jun 14, 2025 · N364NW · Airbus A320212
  > SHIP 3264 DISC: ABORTED T/O @ 55-60 KTS FOR ENG #1 OIL FILTER CLOG. C/A: FOUND LUBE FILTER AND SCAVENGE FILTER LINE INCORRECTLY HOOKED UP. REINSTALLED LINE PER CFM 56-5A EM 71-00-01-440-014, REQUIRES LEAK AND OPS CK WIP 215635. PERFORMED GOOD ENGINE RUN/LEAK
- [SDR DALA2025061404502](https://openairdocs.org/sdr/DALA2025061404502.md): Oil Filter · clogged · Jun 13, 2025 · N364NW · Airbus A320212
  > SHIP 3264 DISC: ENG#1 OIL CLOGGED ECAM ON TAKEOFF REJECTED TAKEOFF AT 50KTS. C/A: NO FAULT DETECTED. C/W AMDS WORKCARD #7900-9201-01 FILTER OIL SCAVENGE & LUBE REPLACED, NO DEFECT OR DEBRIS NOTED. MASTER CHIPS DETECTORS NO DEBRIS. RESTORED A/C TO NORMAL. OPS &
- [SDR AALA202504295150](https://openairdocs.org/sdr/AALA202504295150.md): Module · faulty · Apr 27, 2025 · N776XF · Airbus A319112
  > AIRCRAFT WAS GROUNDED: NUMBER 1 ENGINE LOW OIL PRESSURE. 28-30 PSI AT 93.6N2. RETURNED TO DFW, DID NOT DECLARE EMERGENCY. FOUND CLASS 3 FAULTS FOR OIL PRESS XMTR 1 (4003EN) OR LOW PRESS1 SW (4001EN) IN #1 EIU HITTING OVER THE LAST FEW DAYS. UPON INITIAL INSPEC
- [SDR HALA20241227383](https://openairdocs.org/sdr/HALA20241227383.md): Heat Exchanger · leaking · Dec 26, 2024 · N379HA · Airbus A330243
  > ETOPS - #1 ENG AOHE AND AIR FLOW CONTROL S/N: 3200674-1588 LEAKS OIL FROM HEAT EXCHANGER. REPLACED AOHE PERR AMM 79-21-41-400 LEAK CHECK GOOD. OPD CHECK GOOD. OK FOR SVC
- [SDR YENA2024090601230](https://openairdocs.org/sdr/YENA2024090601230.md): Valve · failed · Sep 5, 2024 · N2180J · Airbus A321271N
  > FLT#263, JFK-SEA. (ETOPS) 'ENG 2 OIL SYS FAULT; T/S PER 79-21-00-810-821A. REPLACED PER AMM 79-21-15 (4069KS) VARIABLE OIL FLOW REDUCTION VALVE. TEST NO 3A IDLE POWER & TEST NO 6 ELC OPS TEST CHECK NORMAL NO FURTHER DEFECT NOTED.'
- [SDR ASAA2024090252282](https://openairdocs.org/sdr/ASAA2024090252282.md): Warning Message · false activation · Sep 2, 2024 · N969AK · Boeing 7379
  > #1 ENG FILTER BYPASS INFLIGHT, INFLIGHT SHUTDOWN. GROUNDED - YES. ACCOMPLISHED TSR 716465 UP TO STEP 7. FOUND MAGNETIC METAL MATERIAL IN THE SCAVENGE FILTER AND ON THE ODMS SENSOR. ODMS POD WAS USED AND THE SCAVENGE FILTER ROUTED TO AOG ENGINEERING FOR ANALYSI
- [SDR YENA2024071601001](https://openairdocs.org/sdr/YENA2024071601001.md): Eiu · failed · Jul 13, 2024 · N973JT · Airbus A321231
  > FLT#1194, MBJ-BOS. 'ENG 2 BEARING 4 OIL SYS HI PRESS- ECAM IN-FLIGHT. ALL ENGINE PARAMETERS NORMAL; REMOVED AND REPLACED #2 ENG EIU IAW AMM 73-25-34. OPS CHECKED GOOD. A/C OK TO CONTINUED SVC.'
- [SDR COZA20240417143](https://openairdocs.org/sdr/COZA20240417143.md): Lubrication Unit · leaking · Apr 14, 2024 · N778MA · Boeing 737808
  > AN OIL LEAK WAS FOUND ON THE ENGINE LUBRICATION UNIT WHERE THE AFT SUMP OIL SCAVENGE TUBE CONNECTS TO THE LUBRICATION UNIT. THE OIL SCAVENGE TUBE WAS REMOVED AND A NEW GASKET WAS INSTALLED. THE FOUR ATTACHING BOLTS WERE INSTALLED AND TORQUED PER THE AMM, USI
- [SDR HALA20240229055](https://openairdocs.org/sdr/HALA20240229055.md): Tube · leaking · Feb 28, 2024 · N215HA · Airbus A321271N
  > ATB - #1 ENG OIL QTY DROPPED TO ZERO. UPON INSEPCTION NOTICED THE OIL PRESSURE TUBE FROM ENGINE AIR/OIL HEAT EXCHANGER WITH EVIDENCE OF OIL SEEPAGE. REFER PIPC 79-21-49-08 SHEET 2 OF 5 ITEM #20. ALL BOLTS FOR OIL PRESSURE TUBE SECURE AND TORQUED IAW AMM 79-21-
- [SDR DALA2024010210768](https://openairdocs.org/sdr/DALA2024010210768.md): Unknown · unknown · Dec 29, 2023 · N139DU · Bombdr BD1001A10
  > SHIP 8139 - DIV, IFSD - DIVERTED TO IAD DUE TO LEFT ENGINE IFSD. FLIGHT CREW RECEIVED LEFT ENGINE OIL DEBRIS ABOVE LIMIT MESSAGE FOLLOWED BY SEVERAL CONTRIBUTING MESSAGES. CORRECTIVE ACTION: CONTRACT MAINTENANCE INSPECTED MCD'S AND FOUND #4 BEARING COMPARTMENT
- [SDR HALA20231223285](https://openairdocs.org/sdr/HALA20231223285.md): Unknown · unknown · Dec 22, 2023 · N381HA · Airbus A330243
  > OTHER - ECAM ENG1 OIL CHIP DETECTED AFTER LANDING. ENG1 OIL CHP DETECTOR GOOD. REPLACED PRECAUTIONARY ENG1 SCAVENGE OIL FILTER PER TSM 79-20-00-869-052-A, 4, B. LEAK TEST OKAY. SECURITY CHECK OK. OK FOR SVC
- [SDR AALA202311092474](https://openairdocs.org/sdr/AALA202311092474.md): Bolt · broken · Nov 4, 2023 · N758AN · Boeing 777223
  > AIRCRAFT WAS GROUNDED: EXCESSIVE OIL CONSUMPTION ON #1 ENGINE WAS MONITERED BY THE PILOTS SUSPECTING A LEAK. WHEN IT WAS CALCUTAED THAT THEY WOULD NOT HAVE ENOUGH OIL THE FLIGHT WAS DIVERTED TO YUL AND AN EMERGENCY DECLARED. AIRCRAFT LANDED WITHOUT INCIDENT. M
- [SDR ASAA2023102845930](https://openairdocs.org/sdr/ASAA2023102845930.md): Unknown · unknown · Oct 28, 2023 · N961AK · Boeing 7379
  > TECH SERVICES FOLLOW UP ON URGENT CNR 20231028024 FOR #1 ENG (60A996) CUMULATIVE ODMS CHIP COUNT INCREASE - LOW THRESHOLD #PRI1/ETOPS**WITHIN NEXT 5 CYCLES**. GROUNDED - YES. (RESOLVED ON W/O: 1975433 TASKCARD: N/R-00003) COMPLEATED STEP 1 OF TSR, ALBO EMP #
- [SDR ASAA2023102045762](https://openairdocs.org/sdr/ASAA2023102045762.md): Unknown · unknown · Oct 20, 2023 · N962AK · Boeing 7379
  > MAINT LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023101945746](https://openairdocs.org/sdr/ASAA2023101945746.md): Separator · damaged · Oct 19, 2023 · N937AK · Boeing 7379
  > #2 ENGINE AIR OIL SEPERATOR NEED REPLACEMENT. GROUNDED - YES. REMOVE AND REPLACED AIR OIL SEPERATOR PER 79-21-21. OPS CHECK GOOD. V.AMINI 62596 REPLACED #2 ENGINE AIR OIL SEPERATOR REF AMM 79-21-21 LEAK CHECK GOOD.
- [SDR ASAA2023101745763](https://openairdocs.org/sdr/ASAA2023101745763.md): Oil Filter · faulty · Oct 17, 2023 · N949AK · Boeing 7379
  > #1 ENGINE IS ALERTING FOR OIL FILTER DELTA PRESSURE INCREASE AND APPROACHING OIL FILTER BYPASS INDICATION. (#PRI1/ETOPS)CNR 20231017063DO NOT EXTEND. GROUNDED - YES. REMOVED AND REPLACED OIL FILTER IAW AMM 79-21-07.INSPECTED OLD FILTER IAW AMM 79-21-07/79-00-0
- [SDR ASAA2023092645340](https://openairdocs.org/sdr/ASAA2023092645340.md): Packing · damaged · Sep 26, 2023 · N928AK · Boeing 7379
  > OVERHEAD "MAIN" LIGHT ILLUMINATED UPON LANDING/ROLLOUT. GROUNDED - YES. (RESOLVED ON W/O: 1970377 TASKCARD: N/R-00005) PERFORMED #1 ENGINE ODMS SENSOR INSPECTION REF AMM 79-00-00-210-804-G00. NO CONTAMINENTS FOUND. REPLACED ODMS SENSOR SEAL. RESET ODMS CHIP
- [SDR ASAA2023092045233](https://openairdocs.org/sdr/ASAA2023092045233.md): Unknown · unknown · Sep 20, 2023 · N972AK · Boeing 7379
  > M-50 MATERIAL FOUND IN #2 ENG OIL SAMPLE.*DO NOT OPERATE #2 ENGINE UNTIL AOG ENGINEERING GIVES OK*. GROUNDED - YES. ON DEFERRAL..... REF TSR714998....FOUND MAINT MSG 79-42885 FOR ENG NO. 2 OIL FILTER APPROACHING BYPASS -ACTIVE. IFIM TASK G79-21-00-810-812. OD
- [SDR ASAA2023082844831](https://openairdocs.org/sdr/ASAA2023082844831.md): Unknown · unknown · Aug 28, 2023 · N926AK · Boeing 7379
  > MAINT LIGHT ON AFTER LANDING. GROUNDED - YES. C/W FAULT INTEROGATION FOR MX MSG PER AMM 31-65-00. FOUND ENGINE 2 OIL DEBRI STRATUS MSG REF IFIM G79-20-00-810-806. LATCHED MSG ERASED. MAINT LIGHT EXTINGUISHED SEAMC MARK NOTIFIED.
- [SDR ASAA2023082644802](https://openairdocs.org/sdr/ASAA2023082644802.md): Unknown · unknown · Aug 26, 2023 · N941AK · Boeing 7379
  > AFTER LANDING OVERHEAD MAINT LIGHT CAME ON. GROUNDED - YES. MAINT LIGHT FOR T/R REF PAGE 60644842, ODMG IS FAILED MESSAGE 79-42854 NOT ACTIVE, PEFORMED FIM TASK G79-21-00-810-810, EEC MAINT ENG 2 POWER TO TEST, MESSAGE NOT ACTIVE, INTERMITTANT FAULT.
- [SDR ASAA2023082544801](https://openairdocs.org/sdr/ASAA2023082544801.md): Unknown · unknown · Aug 25, 2023 · N926AK · Boeing 7379
  > ON LANDING ROLLOUT MAINT LIGHT ILLUMINATED. GROUNDED - YES. REF W/O #1967096 OM L/P 60665066 FOR TSR714887 #2 ENGINE ODMS. DEBRIS FOUND ON ODMS SENOR ONLY. PHOTOS AND DEBRIS SENT TO POWERPLANT ENGINEERING AND TECH SERVICES. NO OTHER DEFECTS NOTED. MAINT LIGHT
- [SDR YENA2023082500992](https://openairdocs.org/sdr/YENA2023082500992.md): Unknown · unknown · Aug 21, 2023 · N4022J · Airbus A321271N
  > FLT#20, LHR-JFK. (ETOPS) 'ENG 1 MAIN OIL FILTER CAP DAMAGED; REMOVED AND REPLACED ENG 1 MAIN OIL FILTER CAP IAW TASK CARD NO. A320-79-21-06-960-801-A.' (SUPPLEMENTAL INFORMATION ADDED)
- [SDR ASAA2023071744085](https://openairdocs.org/sdr/ASAA2023071744085.md): Unknown · unknown · Jul 17, 2023 · N946AK · Boeing 7379
  > TECH SERVICES FOLLOW UP ON URGENT CNR 20230717011 FOR #1 ENG (60A677) CUMULATIVE ODMS CHIP COUNT INCREASE - LOW THRESHOLD **WITHIN NEXT 5 CYCLES**#PRI1/ETOPS. GROUNDED - YES. (RESOLVED ON W/O: 1962223 TASKCARD: N/R-00001) ACCOMPLISHED STEP 1 OF TSR, INSPECTI
- [SDR ASAA2023070543949](https://openairdocs.org/sdr/ASAA2023070543949.md): Cartridge · unknown · Jul 5, 2023 · N973AK · Boeing 7379
  > TECH SERVICES FOLLOW UP ON GE CNR # 20230705063, #2 ENG OIL FILTER APPROACHING BYPASS. GROUNDED - YES. REMOVED AND REPLACED OIL FILTER CARTRIDGE ELEMENT REF AMM 79-21-07. NO DEBRIS/CONTAMINATION FOUND.
- [SDR ASAA2023062643775](https://openairdocs.org/sdr/ASAA2023062643775.md): Filter · faulty · Jun 26, 2023 · N977AK · Boeing 7379
  > #1 ENGINE IS ALERTING FOR OIL FILTER DELTA PRESSURE INCREASE AND APPROACHING OIL FILTER BYPASS INDICATION. (#PRI1) CNR 20230626065DO NOT EXTEND. GROUNDED - YES. ACCOMPLISHED TSR STEPS 1 THRU 4.NO OMF MX MSG NOTED, NO DEFECTS OR CONTAMINATIONS NOTED ON OIL FILT
- [SDR ASAA2023051543303](https://openairdocs.org/sdr/ASAA2023051543303.md): Oil Filter · contaminated · May 15, 2023 · N938AK · Boeing 7379
  > #1 ENGINE IS ALERTING FOR OIL FILTER DELTA PRESSURE INCREASE AND APPROACHING OIL FILTER BYPASS INDICATION. GROUNDED - YES. PERFORMED STEPS 1-4 OF ASA TSR, FOUND NO ATA 79 FAULT MESSAGES, BUT FOUND SMALL METALLIC DEBRIS IN OIL FILTER ELEMENT. REMOVED AND REPLA
- [SDR HALA2023050500101](https://openairdocs.org/sdr/HALA2023050500101.md): Unknown · unknown · May 4, 2023 · N396HA · Airbus A330243
  > ETOPS - ENG 1 OIL CHIP DETECTED. PERFORMED TSM 79-20-00-810-823-A. NO DEBRIS FOUND. CLEANED EMCD #1. EMCD #1 TEST GOOD. REPLACED SCAVENGE OIL FILTER ELEMENT PER AMM 79-22-45. NO LEAKS NOTED. OK FOR SVC.
- [SDR ASAA2023050243102](https://openairdocs.org/sdr/ASAA2023050243102.md): Separator · contaminated · May 2, 2023 · N961AK · Boeing 7379
  > MAINT LIGHT ON GROUNDED - YES. REMOVED AND REPLACED RH ENGINE OIL SEPARATOR IAW ASA TASK CARD SBLEP-1B-79-00121.
- [SDR ASAA2023042843058](https://openairdocs.org/sdr/ASAA2023042843058.md): Sensor · faulty · Apr 28, 2023 · N961AK · Boeing 7379
  > MAINT OVERHEAD LGT CAME ON JUST AFTER LANDING. GROUNDED - YES. REMOVED AND REPLACED #2 ENG ODMS SENSOR, REF B737-9 AMM 79-21-12. RESET #2 ENG ODMS CHIP COUNT, TEST 26 REF AMM 71-00-00. DMS CHIP COUNT DISPLAYS 0.0 ON EPCS PAGE. EEC TEST GOOD.
- [SDR ASAA2023042443006](https://openairdocs.org/sdr/ASAA2023042443006.md): Separator · fod · Apr 24, 2023 · N943AK · Boeing 7379
  > ON LANDING MASTER CAUTION CAME ON WITH MAINT LIGHT ON OVERHEAD. GROUNDED - YES. FOUND FAULT CODES FOR ENGINE #2 ODMS. RELEASED PER MEL 79-21-01A #2 ENGINE ODMS INOP. COMPLETED B737-9 IFIM TASK G79-21-00-810-811 STEP A THRU B.(8). AIR/OIL SEPARATOR REPLACED WIT
- [SDR NACA2023033100025](https://openairdocs.org/sdr/NACA2023033100025.md): Unknown · unknown · Mar 31, 2023 · N321CM · Boeing 767323
  > #2 ENGINE - TURBINE REAR FRAME STRUT OIL SUPPLY TUBE LOOSE. REMOVED AND REPLACED OIL SUPPLY TUBE AT TURBINE REAR FRAME STRUT ON #2 ENGINE IAW B767 AMM 72-53-04
- [SDR NACA2023033100006](https://openairdocs.org/sdr/NACA2023033100006.md): Unknown · unknown · Mar 31, 2023 · N321CM · Boeing 767323
  > #1 ENGINE D SUMP OIL TUBE CLAMP MISSING. INSTALLED CLAMP AT D SUMP OIL TUBE ON #1 ENG IAW AMM 20-11-00
- [SDR DALA2023032702335](https://openairdocs.org/sdr/DALA2023032702335.md): Unknown · unknown · Mar 26, 2023 · N117DU · Airbus BD5001A10
  > SHIP 8117 -IFSD/DIV- A/C DIVERTED TO DTW DUE TO LOW QUANTITY/PRESSURE ON LEFT ENGINE, ENGINE WAS SHUT DOWN IN FLIGHT PER QRH. CORRECTIVE ACTION: FOUND THE LP43 OIL LINE CRACKED. REPLACED LINE AND PERFORMED WINDMILL INSPECTION. RAN ENGINE NO VIBRATION ALL PARAM
- [SDR ASAA2023022142093](https://openairdocs.org/sdr/ASAA2023022142093.md): Exchanger · leaking · Feb 21, 2023 · N471AS · Boeing 737990ER
  > DURING WALKAROUND, FOUND #2 ENG FUEL LEAK. ACCOMPLISHED ENGINE VENTS & DRAINS INSPECTION REF B737-900 AMM 71-11-00 FOUND FUEL LEAK AT MAIN OIL/FUEL HEAT EXCHANGER PAD DRAIN APPROX 60 DPM. GROUNDED - YES. REMOVED AND REPLACED MAIN OIL/FUEL HEAT EXCHANGER AND S
- [SDR ASAA2023021541960](https://openairdocs.org/sdr/ASAA2023021541960.md): Lubrication · leaking · Feb 15, 2023 · N529AS · Boeing 737890
  > TURBINE AFT SUMP SUSPECTED OIL LEAK #1 ENG. #1 ENG OIL CONSUMPTION MAY HAVE BEEN EXCEEDED. GROUNDED - YES. ACCOMPLISHED ENG OIL CONSUMPTION SPIKE GVI PER B737-800 AMM 71-71-00-890-801-F00, FOUND BIG PUDDLE CAUSE BY LEAKS FROM TURBINE REAR FRAME AFT SUMP. REQUI
- [SDR ASAA2023021041915](https://openairdocs.org/sdr/ASAA2023021041915.md): Engine · none · Feb 10, 2023 · N413AS · Boeing 737990ER
  > WHEN ACCOMPLISHING ASA TASK CARD 78472040 ON #1 ENGINE, FOUND METAL PARTICLES ON FORWARD SCAVENGE SUMP. THE LARGEST PARTICLE MEASURES 0.12 X 0.08 X 0.06 IN INCHES. (7 TOTAL PARTICLES FOUND). GROUNDED - YES. #1 ENG REPLACED (ESN 960449) REF ASA T/C 78471001. T
- [SDR ASAA2022111540801](https://openairdocs.org/sdr/ASAA2022111540801.md): Engine · contaminated · Nov 15, 2022 · N941AK · Boeing 7379
  > CFM IS REPORTING #1 ENGINE (S/N 60A512) ODMS CHIP COUNT HAS EXPERIENCED AN INCREASE INDICATING A POTENTIAL CONTAMINATION OF THE ENGINE OIL SYSTEM OR AN INDICATION FAULT. GROUNDED - YES. ACCOMPLISHED STEP 1 OF THE TSR. PERFORMED #1 ENGINE ODMS SENSOR INSPECTIO
- [SDR ASAA2022111440789](https://openairdocs.org/sdr/ASAA2022111440789.md): Transmitter · dirty · Nov 14, 2022 · N952AK · Boeing 7379
  > MAINT LIGHT ILLUMINATED AGAIN AFTER LANDING. GROUNDED - YES. INTERROGATED MTX MESSAGES AND FOUND MSG 79-41192 ENG 1 OIL DEBRIS. C/W B737-9 IFIM TASK G79-21-00-810-801, CHECKED ODMS SENSOR, NO DEBRIS FOUND. REMOVED AND REPLACED OIL DEBRIS MONITORING TRANSMITTER
- [SDR ASAA2022111440787](https://openairdocs.org/sdr/ASAA2022111440787.md): Warning Message · false activation · Nov 14, 2022 · N948AK · Boeing 7379
  > MAINT LIGHT ON AFTER LANDING. GROUNDED - YES. FOUND LATCH FAULT CODE 79210351 & 79-42862 PERFORMED B737-9 FIM 679-21-00-810-803. INSPECTED ODMS SENSOR IAW B737-9 AMM G79-00-00-210-801-600. NO DEBRIS FOUND ON SENSOR. PERFORMED TEST #7 CHIP COUNT 0. REINSTALLED
- [SDR YADA2022100301](https://openairdocs.org/sdr/YADA2022100301.md): None · eroded · Oct 15, 2022 · N125AX · Beech 1900C
  > DURING UNRELATED MAINTENANCE, AN OIL LEAK WAS DISCOVERED FROM THE LEFT ENGINE. MAINTENANCE IDENTIFIED THE ENGINE OIL SCAVENGE PUMP AS HAVING A PINHOLE LEAK AND THE PUMP HOUSING WAS REPLACED. INSPECTION DETERMINED THAT CAVITATION EROSION OF THE PUMP BODY IN A
- [SDR ASAA2022100140153](https://openairdocs.org/sdr/ASAA2022100140153.md): Exchanger · leaking · Oct 1, 2022 · N407AS · Boeing 737900ER
  > DURING #2 ENG RUN FOUND MAIN OIL/FUEL HEAT EXCHANGER DRAIN PAD LEAKING AT 7 DROPS PER MINUTE. GROUNDED - YES. REMOVED MAIN OIL/ FUEL HEAT EXCHANGER IAW B737-900 AMM 79-21-02/401 AND SERVO FUEL HEATER PER AMM 73-11-07/401. LEAK CHECK GOOD.
- [SDR DALA2022092006214](https://openairdocs.org/sdr/DALA2022092006214.md): None · none · Sep 17, 2022 · N181DN · Boeing 767
  > SHIP 181 -ATB/IFSD- LEFT ENGINE SHUTDOWN DUE TO OIL LOSS, ABNORMAL OIL TEMPERATURE, LOW OIL PRESSURE AND VIBRATION. CORRECTIVE ACTION: C/W ENGINE VISUAL INSPECTION, FOUND #3 SCAVENGE OIL LINE RUPTURED. METAL WAS ALSO FOUND ON MASTER MCD, #3 MCD, #4 MCD, AND OI
- [SDR YENA2022090900879](https://openairdocs.org/sdr/YENA2022090900879.md): None · failed · Sep 6, 2022 · N937JB · Airbus A321231
  > FLT#277, FLL-SFO. (AIRCRAFT PERFORMED AN AIR TURN ABCK TO FLL) ' AFTER T/O (+- 2000 ') ECAM FLASHING ADVISORY "LOW OIL" QUANTITY ENG2" OIL QUANTITY INDICATED +- 6 QUARTS ( ON LOW ORANGE BAND) OIL QUANTITY FLUCTUATED BETWEEN 6-8 QTS. TO LANDING; SERVICED ENG #2
- [SDR ASAA2022073039281](https://openairdocs.org/sdr/ASAA2022073039281.md): Lubrication Unit · leaking · Jul 30, 2022 · N428AS · Boeing 737990ER
  > DURING ENGINE RUN #2, FOUND OIL DRIPPING OUT OF AFT SUMP DRAIN PORT. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE LUBRICATION UNIT REF B737-900 AMM 79-21-01-400-801-F00 STEPS G (1)- (6). PERFORMED IDLE POWER LEAK CHECK ON #2 ENGINE LUBRICATION UNIT REF AMM 7
- [SDR ASAA2022070939018](https://openairdocs.org/sdr/ASAA2022070939018.md): Exchanger · defective · Jul 9, 2022 · N472AS · Boeing 737990ER
  > #2 ENG MAIN OIL/FUEL HEAT EXCHANGER FAILED RUN ON TORQUE CHECK FOR FUEL TUBE ATTACH BOLTS. GROUNDED - YES. REMOVED MAIN OIL/FUEL HEAT EXCHANGER REF ASA T/C N8473002 INSTALLED MAIN OIL/FUEL HEAT EXCHANGER REF ASA T/C N8473003 ETOPS GROUND VERIFICATION SUCCESSFU
- [SDR ASAA2022062638835](https://openairdocs.org/sdr/ASAA2022062638835.md): Coupling · loose · Jun 26, 2022 · N402AS · Boeing 737990ER
  > AT FL360, ENG LOW OIL QTY ALERT W/3 QTS INDICATED ON ENG #1. SLOW DECREASE TO ZERO QTY. OIL TEMP SLOW INCREASE TO 105 DEG. OIL PRESSURE FLUCTUATIONS 1-3 PSI W/ 27 PSI INDICATED IN DESCENT. ENGINE SHUT DOWN PER QRH. GROUNDED - YES. DIVERSION - ADDED 17 QTS TO #

Next page: https://openairdocs.org/jasc/7920/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 = '7920'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/jasc/7920/reports

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.