# SDR CA991231011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 1999
- Submitted: January 19, 2001
- Operation: Air carrier
- Make and model: Piper PA-31
- Registry model: [Piper PA-31](https://openairdocs.org/model/piper-pa-31) (OpenAirDocs)
- Aircraft time: 8,685 hours
- Engine: Lyc TIO540A2B
- System (JASC): [7111 · Engine Cowl Flaps](https://openairdocs.org/jasc/7111)
- Part: Motor
- Part number: 5142001
- Condition: Intermittent
- Location: Cowl Flap
- Component: Cowl Flap System, Dukes
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA991231011

## Discrepancy

(CAN) PILOT REPORTED LT COWL FLAP REFUSED TO OPEN IN FLIGHT.  MAINTENANCE DISCOVERED ACTUATOR MOTOR OPERATING INTERMITTANTLY. MOTOR (DUKESP/N:5142-00-1; PIPER P/N475-194) REPLACED.SUBMITTER NOTED THAT ASSEMBLY DATE FOR UNSERVICEABLE PART WAS MARCH 10,1999.

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