# SDR SWAA2022011148374

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2021
- Submitted: January 11, 2022
- Operation: Air carrier
- Aircraft: [N8621A](https://openairdocs.org/aircraft/N8621A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36917
- Aircraft time: 27,526 hours, 12,424 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Condition: Corroded
- Location: Fuselage
- Stage of operation: UK
- 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/SWAA2022011148374

## Discrepancy

FWD CARGO FLOOR STRUCTURE AFT BULKHEAD ANGLE AT STA 500I LBL 24- RBL24 HAS NUMEROUS AREAS OF SURFACE CORROSION. (MARKED) ; / [01] REMOVED CORROSION PER SRM 51-10-02. BLEND DEPTH IS .016 INCH. REMAINING MATERIAL THICKNESS IS .059 INCH AND IS OUT OF LIMITS PER SRM 53-30-08-1A-1.; [02] REMOVED AND INSTALLED NEW FWD CARGO FLOOR STRUCTURE AFT BULKHEAD ANGLE AT STA. 500I; LBL 24 TO RBL 24 .IAW SRM 51-40-02. SEE STEPS FOR INDIVIDUAL SIGN OFFS OF WORK PREFORMED.; [03] C/W

---
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.