# SDR CALA2026031214515

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2026
- Submitted: March 12, 2026
- Operation: Air carrier
- Aircraft: [N53441](https://openairdocs.org/aircraft/N53441), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 30131
- Aircraft time: 52,435 hours, 18,701 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 146A750139
- Condition: Corroded
- Location: Zone 100
- 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/CALA2026031214515

## Discrepancy

MULTIPLE AREAS OF CORROSION ON FLOOR SUPPORT BEHIND AFT CARGO DOOR ENTRANCE BETWEEN BS 787 & 827.   REMOVED THE CORROSION FROM THE  FLOOR SUPPORT,  OUT OF LIMITS IAW SRM 53-00-53-1A-2. REMOVED AND REPLACED THE FLOOR SUPPORT, BS 727I - 887, RBL 16 IAW SRM 51-40-02 & DWG 146A7500, REV-.

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