# SDR SWAA2020050542919

- 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): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- 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/SWAA2020050542919

## Discrepancy

***CORROSION*** ON FLOOR TO SIDEWALL SUPPORT AT ACB BS907 - BS947 RBL21 WL171. / REMOVED CORROSION ON FLOOR TO SIDE WALL SUPPORT ACB BS907-947 RBL21 WL171; ORIGINAL THICKNESS .040' MAX MAT LOSS 2'X1'X.008' FOUND TO BE OUT OF LIMITS IAW SRM 53-70-53-0I-2 AND SRM 53-00-53-1A-2. REMOVED AND REPLACED ACB FLOOR TO SIDE WALL SUPPORT FROM BS887 TO BS947 R/H IAW SRM 51-40-02 AND DWG #147A7500; OK TO INSTALL PRIOR TO INSTALL

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