# SDR SIMA20250717007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 2025
- Submitted: September 2, 2025
- Operation: Air carrier
- Aircraft: [N744DB](https://openairdocs.org/aircraft/N744DB), registered now
- Make and model: Emb ERJ 170-100SU
- Registry model: [EMB ERJ 170-100SU](https://openairdocs.org/model/embraer-erj-170-100su) (OpenAirDocs)
- Aircraft serial: 17000130
- Aircraft time: 41,470 hours, 28,295 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 17086044001
- 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/SIMA20250717007

## Discrepancy

CABIN FLOOR STRUCTURE FR 84 CROSSBEAM IS CORRODED AT NUMEROUS AREAS ALONG ITS ENTIRE LENGTH. (MARKED) SSI 53-23-005. (MAJOR REPAIR) (LEVEL 2 CORROSION). PERFORMED PERMANENT REPAIR TO CABIN FLOOR STRUCTURE FR 84 CROSSBEAM IAW ERS-EJ-53MR-5249.

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