# SDR SWAA2025072895488

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2025
- Submitted: July 28, 2025
- Operation: Air carrier
- Aircraft: [N914WN](https://openairdocs.org/aircraft/N914WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36622
- Aircraft time: 56,574 hours, 34,361 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Pcu
- Condition: Faulty
- Location: Zone 300
- 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/SWAA2025072895488

## Discrepancy

DURING CLIMB OUT AT 14000 AND AGAIN AT 16000 FT THE RUDDER KICKED LEFT WITHOUT PILOT INPUT. OCCURRED AGAIN AT FL370 APPROX 30 MINUTES LATER. AUTOPILOT DID NOT DISENGAGE<[01] REMOVED AND REPLACED MAIN RUDDER PCU PER AMM 27-21-91. ALL OPS CHECKS NORMAL.;[02] REMOVED AND REPLACED MAIN RUDDER PCU PER AMM 27-21-91. ALL OPS CHECKS NORMAL.

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