# SDR 9905379937

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N908H
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47517
- System (JASC): [2780 · Leading Edge Slat Control System](https://openairdocs.org/jasc/2780)
- Part: Control Valve
- Condition: Failed
- Location: Rt Wing
- Stage of operation: AP
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9905379937

## Discrepancy

DURING APPROACH INTO JAX, SLAT DISAGREEMENT LIGHT ILLUMINATED WITH ROLL TO THE RIGHT ON SLAT EXTENSION.  SUCCESSFUL LANDING WAS ACCOMPLISHED USING FLAPS ONLY.  MAINTENANCE FOUND BUILD-UP OF LUBE ON RIGHT T-DUCT.  CLEANED LUBE AREA.  ALSO, REPLACED RESTRICTOR VALVE AT SLAT CONTROL VALVE.  OPERATIONAL CHECK NORMAL ON SLAT CYCLE.  AIRCRAFT RETURNED TO SERVICE.

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