# SDR CALA2026050415958

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2026
- Submitted: May 5, 2026
- Operation: Air carrier
- Aircraft: [N73270](https://openairdocs.org/aircraft/N73270), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31632
- Aircraft time: 75,425 hours, 26,578 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 141A57703
- Condition: Corroded
- 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/CALA2026050415958

## Discrepancy

INTERCOSTAL AT MAIN CABIN FWD WET AREA FLOOR STRUCTURE BETWEEN STA 328 TO STA 344 LBL 44" WITH CORROSION AREA ON UPPER SURFACE ( NEAR STA 344 ) REF. AAR N/R:100025414 STEP CREATED TO DOCUMENT CORRECTIVE ACTION, REPLACED INTERCOSTAL AT FWD WET AREA STRUCTURE STA328 TO STA344,LBL 44" IAW SRM 51-40-02-0G-0 AND DRAWING 141A5730.  REMOVED AND REPLACED INTERCOSTAL AT MAIN CABIN FWD WET AREA FLOOR STRUCTURE BETWEEN STA 328 TO STA 344 LBL 44".

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