# SDR MEX2003519

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 2003
- Submitted: December 3, 2003
- Operation: Air carrier
- Aircraft: N803ML
- Make and model: Doug DC-9-87
- Registry model: [Doug DC-9-87](https://openairdocs.org/model/mcdonnell-douglas-dc-9-87) (OpenAirDocs)
- Aircraft serial: 49726
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Switch
- Part number: S1168
- Condition: Malfunctioned
- Location: Hydraulic Sys
- 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/MEX2003519

## Discrepancy

DURING TRANSIT CHECK, HYDRAULIC LEAKAGE WAS DETECTED IN THE SWITCH S1-168, SUCH SWITCH WAS BEHEADED.  THE SWITCH WAS REPLACED AND THE HYDRAULIC SYSTEM WAS TESTED IAW MM 29-30-03.  DURING OVERNIGHT SERVICE, THE SYSTEM WAS CHECKED BY LEAKAGES, ALL OK.

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