# SDR CALA2025051504693

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2025
- Submitted: May 15, 2025
- Operation: Air carrier
- Aircraft: [N18112](https://openairdocs.org/aircraft/N18112), registered now
- Make and model: Boeing 757224
- Aircraft serial: 27302
- Aircraft time: 104,994 hours, 24,823 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 144N51521
- 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/CALA2025051504693

## Discrepancy

PASSENGER CABIN FLOOR L/H SIDE BETWEEN STA. 1020 TO 1040 , S-17, O/B ANGLE UNDER FLOOR BOARD 241FFA HAS CORROSION. FABRICATED AND REPLACED INNER CHORD STA 1020-1040 AT S17 LT.REF DWG 144N5152 AND DWG 144N5140.

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