# SDR BJNA080402

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2008
- Submitted: July 30, 2008
- Operation: Air carrier
- Aircraft: N43XA
- Make and model: Boeing 737-400
- Registry model: [Boeing 737-400](https://openairdocs.org/model/boeing-737-400) (OpenAirDocs)
- Aircraft serial: 24796
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Actuator
- Part number: 654997025
- Part serial: KE01477
- Condition: Malfunctioned
- Location: Elevator
- Stage of operation: DE
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/BJNA080402

## Discrepancy

STABILIZER TRIM WOULD NOT KEEP UP WITH THE COMMANDED POSITION, ASSOCIATED WITH A STAB OUT OF TRIM ANNUNCIATION.  STABILIZER TRIMMED "UP" OK.  REMOVED AND REPLACED STABILIZER JACK SCREW ASSEMBLY.  OVERHAUL FOUND - P/N 54032-006 SCREW ASSEMBLY WORN; P/N 65C34615-1 SLEEVE OUT OF TOLERANCE; P/N 69-44011-8 GEAR OUT OF TOLERANCE; BEARINGS WORN REQUIRED REPLACEMENT; SPRING OUT OF TOLERANCE.  (S)

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