# SDR SWAA2021102723836

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2021
- Submitted: October 27, 2021
- Operation: Air carrier
- Aircraft: [N263WN](https://openairdocs.org/aircraft/N263WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32520
- Aircraft time: 46,043 hours, 27,465 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Sidewall Support
- Condition: Corroded
- Location: Fuselage
- Stage of operation: UK
- 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/SWAA2021102723836

## Discrepancy

CORROSION ON FLOOR TO SIDEWALL SUPPORT AT LBL 21;WL 154; BODY STATIONS:727E+10; 727E+12; 727E+18; 747+1.5; 747+2; 747+5; 747+6; 747+8; AND 747+10. ; / [01] REMOVED CORROSION ON FLOOR TO SIDEWALL SUPPORT AT DISCREPANCY AREA. FOUND TO BE OUT OF LIMITS L=1.5' W=0.400'; D=0.014' ORIGINAL THICKNESS 0.040' IAW SRM 53-00-53 1A-2 FIG 103 DETAIL C USED TOOL ID ATS1672 DATE DUE 01/20/22; [02] INSPECTED AND VERIFIED ACTION 1; [03] ALL PROCESS IN THIS CARD WILL BE ACCOMPLISHED WITH NC TTG8Q006Q8B1; [04] ALL PROCESS IN THIS CARD WILL BE ACCOMPLISHED ON FAULT TTG8Q006Q8B1; [05] VERIFIED ALL PROCESS IN THIS CARD WILL BE ACCOMPLISHED ON FAULT TTG8Q006Q8B1.

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