# SDR CALA2026042015542

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2026
- Submitted: April 20, 2026
- Operation: Air carrier
- Aircraft: [N37255](https://openairdocs.org/aircraft/N37255), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30610
- Aircraft time: 77,618 hours, 29,101 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 147A576220
- 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/CALA2026042015542

## Discrepancy

MAIN CABIN AFT WET AREA, INTERCOSTAL CORRODED ON UPPER SURFACE BETWEEN BS 927 AND 947.5 APPROX RBL10.   REMOVED, LOCATED, DRILLED AND INSTALLED NEW INTERCOSTAL IAW SRM 51-40-05 AND  DWG 147A5760 REV-.

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