# SDR SWAA2020050542865

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2020
- Submitted: May 5, 2020
- Operation: Air carrier
- Aircraft: [N460WN](https://openairdocs.org/aircraft/N460WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32464
- Aircraft time: 56,047 hours, 33,294 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Support
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2020050542865

## Discrepancy

***CORROSION*** ON AFT FLOOR TO BULKHEAD PANEL SUPPORT AT FCB BS500D WL157 LBL21 TO RBL21. MARKED / DAMAGE FOUND ON FCB AFT BULKHEAD LOWER SUPPORT BS500D LBL21 - RBL-21 WL-157 FOUND TO BE OUT OF LIMIT DUE TO NO LIMIT ON SRM PARTS REPAIRED BY REPLACMENT IAW SRM 51-10-02-0G-0 PAR 9.C LOCATED AND DRILLED IAW SRM 51-40-05-0G-0 AND DWG# 143A9481 REV.A ITEM# 7530142 AND INSTALLED IAW SRM 51-40-02-0G-0 AND DWG# 143A7902

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