# SDR SWAA2022100365286

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 16, 2022
- Submitted: October 3, 2022
- Operation: Air carrier
- Aircraft: [N431WN](https://openairdocs.org/aircraft/N431WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29845
- Aircraft time: 66,939 hours, 39,408 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Angle
- Condition: Corroded
- Location: R/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/SWAA2022100365286

## Discrepancy

RT WING FRONT SPAR HAS CORROSION AT IB BOOST PUMP UPPER GROUND POINT ATTACH AREA. / [01] REMOVED DAMAGE UPPER SUPPER ANGLE AT RT WING FRONT SPAR BOOST PUMP AREA REF B737-700 SRM 51-40-02-0G-0.[31] REMOVED DAMAGE UPPER SUPPER ANGLE AT RT WING FRONT SPAR BOOST PUMP AREA REF B737-700 SRM 51-40-02-0G-0;REMOVED CORROSION AT RT WING FRONT SPAR UPPER OF BOOST PUMP AREA REF B737-700 SRM 51-10-02-0G-0.REWORKED AREA FOUND TO BE WITHIN LIMITS AND EVALUATED SURFACE ROUGHNESS FOUND TO BE SMOOTHER THAN 125 MICROINCHES RA; TOOL USED B/C#172329 NO DUE DATE REF B737-700 SRM 57-20-10-1A-3; FIG 102 TABLE 101. LOCATED ;DRILLED AND INSTAL NEW SUPPORT ANGLE AND SHIM PER REF B737-700 SRM 57-20-10-1A-3;[32] VERIFIED 31.

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