# SDR AALA202501246707

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2025
- Submitted: January 25, 2025
- Operation: Air carrier
- Aircraft: [N338RS](https://openairdocs.org/aircraft/N338RS), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 44458
- Aircraft time: 13,583 hours, 5,038 cycles
- Engine: Cfmint LEAP1B25
- Engine time: 4,892 hours, 1,793 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil Filter
- Part number: LEAP1B25G06
- Condition: Contaminated
- Location: Engine
- Stage of operation: CL
- 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/AALA202501246707

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FOLLOWING THE PREVIOUS WRITE UP REGARDING THE LOSS OF HYDRAULIC SYSTEM-B (AALA202501136707), AN ENGINE NUMBER 2 OIL FILTER BYPASS MESSAGE ILLUMINATED. AFTER RUNNING THIS ASSOCIATED QRH PROCEDURE FOLLOWING DISCONNECTING THE AUTO THROTTLE ONCE ENGINE 2 WAS CONFIRMED AND IDLED, THE ASSOCIATED OIL FILTER BYPASS LIGHT REMAINED ILLUMINATED. THE ENGINE NUMBER 2 WAS THEN SHUT DOWN PER QRH INSTRUCTION; AIRCRAFT DIVERTED TO AND LANDED SAFELY AT SLC. **SUPPLEMENTAL REPORT FOR (AALA202501130507): PERFORMED 3 OIL FLUSHES (AALA202501130507), PER AMM 12-13-11-100-801. CHANGED OIL CARTRIDGE FILTER (AALA202501136707), PER AMM 79-21-07-400-801-G00. REMOVE AND REPLACED EDP- ENGINE DRIVEN PUMP (AALA202501247485), PER AMM 29-11-11-400-801**(CLOSED).

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