# SDR SWAA2021092708994

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 2021
- Submitted: September 27, 2021
- Operation: Air carrier
- Aircraft: [N208WN](https://openairdocs.org/aircraft/N208WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29856
- Aircraft time: 52,294 hours, 30,932 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Sidewall Support
- Condition: Corroded
- Location: Bs 500c-500d
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021092708994

## Discrepancy

CORROSION ON FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS500C - BS500D LBL23 WL156. ; / [01] BLENDED CORROSION ON LH FLOOR TO SIDEWALL SUPPORT FROM BS 500C- BS 500D. REMOVED .009' (AT DEEPEST BLEND) MATERIAL IN A AREA MEASURING .5' X .6'. ORIGINAL THICKNESS IS .040' THEREFORE THE PART IS OUT OF LIMITS BECAUSE MATERIAL REMOVAL EXCEEDS 10% OF MATERIAL THICKNESS PER SRM 53-00-53-1A-2. STEP 4. A (2) FIGURE 103<BR><BR>THIS PART WILL BE REPLACED ON CUSTOMER CARD: TTG8Q0067PPS<BR><BR>DEPTH GUAGE USED:<BR>ID:ATS401<BR>S/N: UNKNOWN<BR>DATE:07/2021<BR>DUE:07/2022; [02] VERIFIED BLEND AREA EXCEEDS ALLOWABLE LIMITS PER SRM 53-00-53-1A-2. STEP 4. A (2) FIGURE 103; AND WILL BE REPLACED ON TTG8Q0067PPS; [03] CORRECTED MEASUREMENTS SECTION

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