# SDR SWAA2021071529161

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 2020
- Submitted: July 15, 2021
- Operation: Air carrier
- Aircraft: [N8603F](https://openairdocs.org/aircraft/N8603F), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 38875
- Aircraft time: 27,506 hours, 11,825 cycles
- System (JASC): [5540 · Rudder Structure](https://openairdocs.org/jasc/5540)
- Part: Balance Weight
- Condition: Corroded
- Location: Tail
- 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/SWAA2021071529161

## Discrepancy

RUDDER BALANCE WEIGHT HAS EVIDENCE OF CORROSION IN MOUNT HOLE CAVITIES AND ON THE UPPER LEFT SIDE. / REMOVED & REPLACED RUDDER BALANCE WEIGHT IAW BOEING CMM 55-40-09 A TAG #S A37721 A77366 A57348 A06399 WN0648

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