# SDR 2021F00157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2021
- Submitted: June 16, 2021
- Operation: General aviation
- Aircraft: XAADH
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 44427
- Aircraft time: 14,709 hours, 1,698 cycles
- System (JASC): [7310 · Engine Fuel Distribution](https://openairdocs.org/jasc/7310)
- Part: Drain Mast
- Condition: Leaking
- Location: Lt Eng Fuel
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2021F00157

## Discrepancy

24.05.2021 17:36 LEFT ENGINE WITH FUEL LEAK AT MFP-TVB HOLE ON DRAIN MAST DURING TRANSIT CHECK, IT WAS DETECTED A FUEL LEAK AT LEFT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING THE LEFT ENGINE WITH FUEL LEAK AT MFP-TVB HOLE ON DRAIN MAST OF 58 DROPS PER MINUTE; SO THE LEFT ENGINE VENTS AND DRAINS INSPECTION WAS PERFORMED IAW DMC-B787-A-G71-71-00-00A-280A-A, DETECTING FUEL LEAK AT MFP-TVB HOLE ON DRAIN MAST, INTO LIMITS PERMITTED FUEL LEAKAGE OF 72 DROPS PER MINUTE IAW DMC-B787-A-G71-71-00-00A-280A-A, TESTED CORRECT.

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