# SDR DALA2025052804113

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2025
- Submitted: May 28, 2025
- Operation: Air carrier
- Aircraft: [N523DN](https://openairdocs.org/aircraft/N523DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0677
- Aircraft time: 4,489 hours, 353 cycles
- Engine: Rroyce TRENTXWB84
- Engine time: 4,476 hours, 351 cycles
- System (JASC): [7900 · Engine Oil System (Airframe Furnished)](https://openairdocs.org/jasc/7900)
- Part: Pump
- Condition: Failed
- Location: Engine Oil
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025052804113

## Discrepancy

SHIP 3523 -ATB- DECLARED AN EMERGENCY AND RETURNED TO HND DUE TO LEFT ENGINE LOSS OF OIL QUANTITY AND FLUCTUATION OIL PRESSURE JUST AFTER TAKEOFF. CORRECTIVE ACTION: REPLACED LEFT ENGINE OIL PUMP, QUANTITY/TEMP SENSOR AND PERFORMED HIGH POWER RUN CHECK OUTS. (LP#5446708)

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