# SDR SWAA2021111927458

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2021
- Submitted: November 19, 2021
- Operation: Air carrier
- Aircraft: N780SW
- Make and model: Boeing 737*
- Aircraft serial: 27885
- Aircraft time: 68,861 hours, 40,837 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2021111927458

## Discrepancy

CORROSION ON FLOOR SUPPORT BS 312-328 RBL 11 WL 208. ; / [01] REMOVED CORROSION ON FLOOR SUPPORT AT BS312-328 RBL 11 WL208 1'X1' AREA WITH A .050' MATERIAL LOSS. ORIGINAL THICKNESS WAS .080'. OUT OF LIMITS. WORK PERFORMED IAW SRM 51-10-02 AND SRM 53-10-51-1A-1; [02] VERIFIED CORRECTIVE ACTION 1.; [03] REMOVED DAMAGED FLOOR SUPPORT AT BS312-328; RBL 11;WL 208 IAW B737 SRM 51-40-02.; [04] CERTIFIED ACTION 3.; [05] LOCATED AND DRILLED AND COUNTERSUNK NEW FLOOR SUPPORT STA 312-328; RBL 11; WL 208 PER SRM 51-40-02-0G-0; SRM 51-40-05-0G-0; SRM 51-40-08-0G-0 DWG#141A5400. OK TO INSTALL.; [06] INSPECTED ACTION 5; [07] INSTALLED NEW FLOOR SUPPORT STA 312-328; RBL 11; WL 208 PER SRM 51-40-02-0G-0; 51-40-03-0G-0; DWG#141A5400.; [08] RII INSPECTED ACTION 7; [09] INSPECTION COMPLETE

---
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.