# SDR P5CA2016083000249

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 30, 2016
- Submitted: September 2, 2016
- Operation: Air carrier
- Aircraft: [N453PA](https://openairdocs.org/aircraft/N453PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30811
- Aircraft time: 63,389 hours, 10,583 cycles
- System (JASC): [2741 · Stabilizer Position Indicating](https://openairdocs.org/jasc/2741)
- Part: Switch
- Part number: 3064306
- Part serial: 3614
- Condition: Faulty
- Location: Stabilizer Trim
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA2016083000249

## Discrepancy

EICAS MESSAGE; STABILIZER TRIM UNSCHEDULED.  ASSOCIATED AUTOPILOT MESSAGE. QRH FOLLOWED, UNABLE REGAIN STABILIZER TRIM.  R & R CAPTAIN AND F/O STABILIZER MANUAL TRIM CONTROL WHEEL SWITCHES.  R & R STABILIZER TRIM CONTROL MODULE.  OPS LEAK CHECK OK IAW AMM 27-41-04, MANUAL TRIM TEST FOUND STABILIZER TRIM GOES TO 11.6 UNIT THEN CANNOT GO TO NOSE DOWN DIRECTION.  MANUAL TRIM CHECK OK.  AUTO TRIM, ALTN TRIM TEST SATISFACTORY AMM 27-41-00.  AUTOLAND TEST PASSED.

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