# SDR SWAA2021102724525

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 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: Support
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2021102724525

## Discrepancy

CORROSION ON FLOOR TO SIDEWALL SUPPORT AT RBL 21; WL 154; BS 727E+18.   REMOVED CORROSION ON FLOOR TO SIDEWALL SUPPORT, MEASURES  L=0.750,  W=0.300, D=0.008'.  ORIGINAL 0.040', REMOVED=0.008', REMAINING THICKNESS 0.032'. THE SIDEWALL SUPPORT IS OUT OF LIMITS. IAW SRM 53-00-53-1A-2, ALLOWABLE DAMAGE 2, STEP 4.2A.  INSPECTED AND VERIFIED ACTION 1;2.  THIS DISCREPANCY WILL ACCOMPLISHED ON CARD TTG8Q006Q898.  .

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