# SDR SWAA2022020859102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2022
- Submitted: February 8, 2022
- Operation: Air carrier
- Aircraft: [N943WN](https://openairdocs.org/aircraft/N943WN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 36913
- Aircraft time: 39,369 hours, 23,825 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 141A541012
- Condition: Cracked
- Location: Cabin Floor
- 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/SWAA2022020859102

## Discrepancy

CABIN FLOOR INTERCOSTAL CRACKED AT FASTENER HOLE; BS 312-328; RBL 30; WL 208 (MARKED) ; / [01] CRACK FOUND ON INTERCOSTAL BS 312-BS328 RBL-30 WL-208.1 FOUND TO BE OUT OF LIMIT IAW SRM 53-10-51-1A-1 PAR.4B(1) FIG-105-K; [02] REMOVED DAMAGED INTERCOSTAL AND LOCATED AND DRILLED NEW INTERCOSTAL P/N 141A5410-12 AT BS 312-BS 328 RBL-30 WL 208.1 IAW SRM 51-40-05-0G-0 AND DWG#141A5400 OK TO INSTALL; [03] VERIFIED CORRECTIVE ACTION ITEMS 1 & 2. OK TO INSTALL NEW INTERCOSTAL AT BS 312-328; RBL 30; WL 208 GIVEN.; [04] INSTALLED INTERCOSTAL AT BS 312-TO-BS 328 RBL-30 WL 208.1 IAW SRM 51-40-02-0G-0 AND DWG#141A5400; [05] VERIFIED CORRECTIVE ACTION ENTRY 4.; [06] VERIFIED CARD 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.