# SDR 180131

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2003
- Submitted: September 17, 2003
- Operation: Air carrier
- Aircraft: [N118SD](https://openairdocs.org/aircraft/N118SD), registered now
- Make and model: Saab SF340A
- Registry model: [Saab SF340A](https://openairdocs.org/model/saab-scania-sf340a) (OpenAirDocs)
- Aircraft serial: 118
- Aircraft time: 32,130 hours, 32,382 cycles
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Motor
- Condition: Inoperative
- Location: Elevator Trim
- Stage of operation: CL
- How discovered: O
- Nature of condition: J, F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/180131

## Discrepancy

FLT 4588 PIT-IPT.  DURING CLIMB OUT AND DESCENT FLIGHT CREW NOTICED THAT THE MAIN ELEVATOR WARNING LIGHT WAS ILLUMINATED.  THE CREW FOLLOWED THE QRH AND DISCONNECTED THE AUTO-PILOT, THEY THEN NOTICED THAT THE MAIN ELEVATOR TRIM WAS INOPERATIVE AND NOT TRIMMING AT ALL. A/C RETURNED TO PIT AND TAKEN OUT OF SERVICE AT 1735(LT)

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