# SDR CALA2026071017665

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 2026
- Submitted: July 10, 2026
- Operation: Air carrier
- Aircraft: [N38257](https://openairdocs.org/aircraft/N38257), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30612
- Aircraft time: 77,090 hours, 29,091 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 141A5410U12
- 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/CALA2026071017665

## Discrepancy

POSSIBLE CORROSION ON INTERCOSTAL BTW BS 312 TO 328, LBL 45.  REMOVED AND LOCATED, DRILLED, AND INTALLED NEW INTERCOSTAL ON FLOOR SUPPORT BTW BS 312 - 328, LBL 45. IAW  SRM 51-40-02-0G-0, SRM 51-40-08-0G-0, AMM 51-21-41-370-802, & AMM 51-21-72-370-804.

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