# SDR DALA2019100985806

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 2019
- Submitted: October 9, 2019
- Operation: Air carrier
- Aircraft: [N557NW](https://openairdocs.org/aircraft/N557NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 33393
- Aircraft time: 50,869 hours, 22,137 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Module
- Condition: Leaking
- Location: Flap/Slats
- Stage of operation: CR
- 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/DALA2019100985806

## Discrepancy

DIVERTED DUE TO LOSS OF LT HYDRAULIC FLUID.  FOUND LEAKS AT FLAP/SLAT DEPRESSURIZATION MODULE AND LT EDP. REPLACED DAMAGED SEAL AT FLAP/SLAT DEPRESSURIZATION MODULE AND LT EDP.  R & R LT ACMP AND CASE DRAIN FILTER, LT RTN FILTER MODULE, AND PTU AS PRECAUTIONARY. LEAK CK AND OPS CK GOOD.

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