# SDR YENA2026030900276

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2026
- Submitted: March 9, 2026
- Operation: Air carrier
- Aircraft: [N4064J](https://openairdocs.org/aircraft/N4064J), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 10861
- Aircraft time: 13,737 hours, 2,076 cycles
- Engine: Iae PW1133GJM
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Blade
- Part number: 5322121
- Part serial: LAEDAT7314
- Condition: Faulted
- Location: Nr 1 Engine
- Part time: 11,089 hours, 2,880 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2026030900276

## Discrepancy

FLT 1620 BOS-LHR (ETOPS).  DUE TO INBOUND WRITEUP OF OIL QTY ADVISORY ON ENG #1, FOUND OIL LEAKING FROM NR 4 BEARING SCUPPER DRAIN.  ENG 1 OIL QTY ADVISORY ON ECAM. PERFORM IDLE POWER TEST TO CHK FOR OIL SYSTEM LEAKS.   ENGINE 1 IDLE POWER TEST PERFORMED IAW AMM 71-00-00-720-811-1 REV 109. LEAK IDENTIFIED FROM NO.4 BEARING SCUPER DRAIN.)  (4434784: ENG OIL QUANTITY ADVISORY ON ECAM AFTER T/O AND ON APPROACH. SHOWED 1 QT OF OIL.; TS C/O IAW TSM 71-00-00-810-846-A. UP TO SUBTASK71-00-00-810-111-A 4A 3A. NO BORSCOPES PERFORMED VISUAL INSPECTION OF ENG OIL SYS. EXTERNALLY WITH FAN COWLS+TR  OPEN C/O IAW AMM 79-00-00-210-810-A. NO LEAKS APPARENT.GR TO BW C/O FOR TS.  R & R NR 1 ENG REF WO 1479572. OK FOR CONT SVC.

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