# SDR SWAA2021032448947

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2021
- Submitted: March 24, 2021
- Operation: Air carrier
- Aircraft: [N436WN](https://openairdocs.org/aircraft/N436WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32456
- Aircraft time: 60,477 hours, 35,616 cycles
- System (JASC): [5750 · Wing, Control Surfaces](https://openairdocs.org/jasc/5750)
- Part: Angle
- Condition: Cracked
- Location: L/H Wing
- 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/SWAA2021032448947

## Discrepancy

LT WING PANEL #551GB HAS CHAFING WEAR AND CRACK AT T/E BULB SEAL RETAIN ANGLE; O/B END. / REMOVED AND REPLACED RETAIN ANGLE AT LT WING PANEL NO 551 GB AS PER B737 SRM 51-40-02-0G-0

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