# SDR CALA2025082708190

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2025
- Submitted: August 27, 2025
- Operation: Air carrier
- Aircraft: [N77258](https://openairdocs.org/aircraft/N77258), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30802
- Aircraft time: 75,311 hours, 28,294 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 141A5410140
- Condition: Cracked
- Location: Zone 200
- 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/CALA2025082708190

## Discrepancy

2 EA CRACKS AT FWD WET AREA INTERCOSTAL  BETWEEN FLOOR SUPPORTS STA 312  AND  STA 328  RBL 31 APROX MKD 252-012 (REF AAR N/R 99949067) REMOVED AND REPLACED INTERCOSTAL FROM STA 312 TO STA 328 RBL 45 AS PER B737-800 SRM 51-40-02-0G-0 AND DWG# 141A5400.

---
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.