# SDR AALA202605133614

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2026
- Submitted: May 13, 2026
- Operation: Air carrier
- Aircraft: [N115NN](https://openairdocs.org/aircraft/N115NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6063
- Aircraft time: 39,968 hours, 9,442 cycles
- Engine: Iae V2533A5
- Engine time: 23,114 hours, 9,424 cycles
- System (JASC): [7931 · Engine Oil Pressure](https://openairdocs.org/jasc/7931)
- Part: Pump
- Part number: 4A7110B
- Part serial: FAGR8218
- Condition: Low Pressure
- Location: Zone 400
- Part time: 5,912 hours, 2,899 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202605133614

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: AN EMERGENCY WAS DECLARED AND THE ACFT RETURNED TO LAX DUE TO THE FLT CREW REPORTING THAT AT FL370 ABOUT 40 MINUTES INTO FLT A NR 2 ENGINE LOW OIL PRESSURE CAUTION MESSAGE DISPLAYED ON ECAM, THE OIL PRESSURE CONTINUED TO DROP ALL THE WAY TO 20PSI (RED) & STAYED THERE FOR ABOUT 3-5 MINS, BEFORE SLOWLY TRENDING BACK UP WHERE IT STAYED IN THE MID 120'S. THE FLT CREW REPORTED THAT THEY DID NOT SHUT DOWN THE ENG AS ALL OTHER INDICATIONS SEEMED NORMAL. THE AIRCRAFT LANDED SAFELY AT LAX AND TAXIED TO THE GATE UNDER ITS OWN POWER. MAINTENANCE REPLACED THE NR 2 ENGINE OIL PRESSURE PUMP AND FILTER ASSEMBLY IAW AMM 79-21-41. A SATISFACTORY LEAK & OPS CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.

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