# SDR DALA2017050903690

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 8, 2017
- Submitted: May 9, 2017
- Operation: Air carrier
- Aircraft: N924DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49711
- Aircraft time: 73,559 hours, 55,557 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Damaged
- Location: Hydraulic Sys
- Stage of operation: TX
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017050903690

## Discrepancy

DURING TAXI-OUT CREW REPORTED ODOR AND HAZE IN THE CABIN AND RETURNED TO THE DEPARTURE GATE. MAINTENANCE FOUND A HYDRAULIC LEAK AT THE LEFT ENGINE FILTER MODULE PRESSURE LINE FITTING. THE FITTING O-RING WAS REMOVED AND REPLACED AND A GOOD LEAK CHECK ACCOMPLISHED. COMPLETED MINI DUCT BURNOUT AND DEFERRED THE APU FOR CLEANING.

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