# SDR SWAA2022020890946

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 9, 2018
- Submitted: February 8, 2022
- Operation: Air carrier
- Aircraft: N7725A
- Make and model: Boeing 737-76N
- Registry model: [Boeing 737-76N](https://openairdocs.org/model/boeing-737-76n) (OpenAirDocs)
- Aircraft serial: 32671
- Aircraft time: 39,006 hours, 18,379 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Fwd Cargo Bay
- 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/SWAA2022020890946

## Discrepancy

***CORROSION*** FWD CARGO BAY FLOOR SUPPORT HAS CORROSION STA500D LBL21 TO RBL 21. / REMOVED CORROSION FROM FCB FLOOR SUPPORT BS 500D LBL 21 TOT RBL 21 LOWER RAIL IN AREAS OF 7' X 2' X0.01 FOUND TO BE OUT OF LIMIT DUE TO NO LIMIT PER SRM PARTS WILL BE REPAIR REPLACEMENT IAW SRM 51-10-02-0G-0 PAR-9C LOCATED AND DRILLED NEW FLOOR SUPPORT ITEM # 7R30142 IAW SRM 51-40-05-0G-0 AND INSTALLED IAW SRM 51-40-02-0G-0 AND BOE DR # 143A 9481 REV B 56208U 10JAN18

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.