# SDR SWAA021572

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2002
- Submitted: July 26, 2002
- Operation: Air carrier
- Aircraft: N610WN
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27696
- Aircraft time: 24,807 hours, 21,914 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Pcu
- Part number: 65C370539
- Part serial: 1063A55C
- Condition: Faulty
- Location: Rudder
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA021572

## Discrepancy

LEFT RUDDER RATCHETING DURING FULL THROW OF RUDDER.  RIGHT RUDDER OK.  HAPPENS ON BOTH SIDES CAPT AND FO.  REMOVED AND REPLACED RUDDER PCU PER MM.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.