# SDR SWAA2021082743099

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2020
- Submitted: August 27, 2021
- Operation: Air carrier
- Aircraft: [N922WN](https://openairdocs.org/aircraft/N922WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32461
- Aircraft time: 41,140 hours, 24,679 cycles
- System (JASC): [5751 · Ailerons](https://openairdocs.org/jasc/5751)
- Part: Balance Weight
- Condition: Corroded
- Location: Lt Aileron
- 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/SWAA2021082743099

## Discrepancy

LEFT WING AILERON #2 BALANCE BAY; 2EA. BALANCE WEIGHTS HAVE CORROSION. / REMOVED AND INSTALLED 2EA NEW BALANCE WEIGHTS IN L/H WING AILERON BALANCE BAY #2 IAW B737 20-50-11-910-801 TABLE 215; SRM 51-40-02-0G-0; SOPM 20-50-01. NO CHANGE IN WEIGHT A TAG UP1648 TW 20073 06/03/20; A TAG: UP1669

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