# SDR ASAA2022121441132

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2022
- Submitted: December 15, 2022
- Operation: Air carrier
- Aircraft: [N936AK](https://openairdocs.org/aircraft/N936AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43379
- Aircraft time: 1,892 hours, 583 cycles
- Engine: Cfmint LEAP1B28
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Drain Mast
- Condition: Leaking
- Location: Engine
- Stage of operation: NR
- How discovered: 9
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022121441132

## Discrepancy

OIL LEAKING FROM BOTH ENGINES. GROUNDED - YES. VERIFIED OIL CAPS SECURED. PERFORMED ENGINE VENTS AND DRAIN INSPECTION PER B737-9 AMM 71-71-00-200-801-G00. FOUND OIL WAS COMING FROM C-SUMP TUBE IN CORE DRAIN MAST BOTH ENGINES. NO LEAK AT THIS TIME. PERFORMED ENGINE RUN OF BOTH ENGINE IAW AMM 71-71-00-200-801-GOOD. NO LEAKS NOTED. A/C OK FOR SERVICE.

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