# SDR SWAA2022020158721

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2017
- Submitted: May 11, 2022
- Operation: Air carrier
- Aircraft: [N489WN](https://openairdocs.org/aircraft/N489WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33855
- Aircraft time: 45,979 hours, 26,932 cycles
- System (JASC): [5544 · Rudder Miscellaneous Structure](https://openairdocs.org/jasc/5544)
- Part: Counterbalance
- Condition: Corroded
- Location: Rudder
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022020158721

## Discrepancy

UPON REMOVAL OF COUNTER BALANCE WEIGHT CORROSION FOUND ON THE FWD RIGH HAND FACE OF BALANCE ARM. CORROSIONG IS .045' DEEP (TRANSFERRED FROM NRC# 483092) / BLENDED AND REMOVED CORROSION PER SRM 51-40-02; REPAIRED RUDDER BALANCE ARM PER EA 1-755-3798; SEE ATTACHED 326 FOR INDIVIDUAL SIGN OFFS

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