# SDR CALA2026092919967

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2026
- Submitted: September 29, 2026
- Operation: Air carrier
- Aircraft: [N54538](https://openairdocs.org/aircraft/N54538), 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: 12561
- Aircraft time: 3,128 hours, 1,186 cycles
- Engine: Iae PW1133GAJM
- Engine time: 3,128 hours, 1,186 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Engine
- Part number: 532100003
- Condition: Contaminated
- Location: Nr 2
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026092919967

## Discrepancy

FA REPORTED A STRONG DIRTY SOCK, GYM BAG ODOR ON DESCENT BTWN 15000-10000.  ODOR WENT AWAY WHEN PACK 2 SELECTED OFF. NO DETECTABLE ODOR IN FLIGHT DECK.  LAST OCCURRENCE CONFIRMED STRONG SOCK ODOR COMING FROM PACK 2.   REMOVED NR 2 ENG INLET DOME COVER, NO OIL FOUND, REINSTALLED,  RAN RT PACK WITH BOTH APU & NR 1 ENG, NO ODORS DETECTED, WITH RT PACK RUNNING WITH NR 2 ENG, ODOR RETURNED,  BELEIVE ODOR TO BE OIL.   ACCOMP BORO INSP IAW AMM 72-00-00-290-828-A.  FOUND OIL EVIDENCE IN LPC1,2 & 3.  FOUND EVIDENCE OF OIL IN HPC 1, 2, 3, & 4. FOUND EVIDENCE OF OIL LEAKING FROM LPC TO FRONT OF ENGINE. OIL COVERED HPC 1.   PLUG AS REQUESTED PER MXC DIRECTIVE, REMOVED NR 2 ENG FAN SHAFT COVER, REPLACED PACKING IAW AMM 72-15-00-960-801-A. NO EVIDENCE OF OIL LEAKING FROM FAN SHAFT COVER. PARTIALLY REMOVED MGB HOUSING BREATHER MANIFOLD (LB30) FOR BORESCOPE ACCESS.   PERFORMED BOROSCOPE OF NR 2 ENG IAW TASK CARD 20-0572-8-0051 FOR ENGINE CHANGE. ODOR NO LONGER PRESENT DURING ENGINE RUNS. GOOD TO CONTINUE. ENG REPLACED.

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