# SDR DALA2017080606081

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2017
- Submitted: August 9, 2017
- Operation: Air carrier
- Aircraft: [N684DA](https://openairdocs.org/aircraft/N684DA), registered now
- Make and model: Boeing 757232
- Aircraft serial: 27104
- Aircraft time: 81,817 hours, 33,662 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Failed
- Location: Hyd System
- Stage of operation: IN
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017080606081

## Discrepancy

LEFT HYD SYSTEM FAILURE.  FOUND A LEAK COMING FROM  FLAP/SLAT DEPRESS MODULE.  R & R O-RING. REMOVED AND REPLACED CASE DRAIN AND PRESSURE FILTERS IN EDP AND PTU. ALSO R & R PTU. ALL CHECKED NORMAL.

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