# SDR SWAA2020081702708

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2020
- Submitted: August 17, 2020
- Operation: Air carrier
- Aircraft: N728SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27860
- Aircraft time: 73,319 hours, 43,208 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Part number: 146A7500
- Condition: Corroded
- Location: Bs 727-767
- 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/SWAA2020081702708

## Discrepancy

CORROSION ON FLOOR TO SIDEWALL SUPPORT AT ACB BS727 - BS767 RBL21 WL157.   CORROSION ON FLOOR TO SIDEWALL SUPPORT AT ACB BS727-BS767 RBL21 WL157 FOUND TO BE OUT OF LIMITS DUE TO MORE THAN 50% MATERIAL LOSS IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2. REMOVED AND REPLACED FLOOR TO SIDEWALL FROM BS727+4 TO BS767 RBL21 IAW SRM 51-40-02 AND IAW DWG #146A7500 AND IAW DWG #146A7502

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