# SDR SWAA2020041420409

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2020
- Submitted: April 14, 2020
- Operation: Air carrier
- Aircraft: [N427WN](https://openairdocs.org/aircraft/N427WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29831
- Aircraft time: 61,697 hours, 36,249 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/SWAA2020041420409

## Discrepancy

***CORROSION*** ON FORWARD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT B.S. 500A-500D; W.L. 155; R.B.L. 21. / REMOVED AND REPLACED ON FCB NEW FLOOR TO SIDEWALL SUPPORT AT BS 500A-500D WL 155 RBL 21 FROM BAC 1496-444 # 7075T62 CLAD LOT # 1419983-2 IAW SRM 53-00-53-1A-2 STEP 4A(2) FIG 103; SRM 51-40-02; SRM 51-20-01; SRM 51-40-05 AND DWG 143A7501; DWG 143A7500 80641U 18MAR20

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