# SDR SWIA2026022375305

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2025
- Submitted: February 23, 2026
- Operation: Air carrier
- Aircraft: [N709BR](https://openairdocs.org/aircraft/N709BR), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7850
- Aircraft time: 44,201 hours, 38,528 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- 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/SWIA2026022375305

## Discrepancy

RIGHT UPPER SURFACE PRESSURE FLOOR SILL STRUCTURE SHOWING SIGN OF CORROSION AT BS 424 - 449.  REMOVED, & TREATED CORROSION ON RT FLOOR SILL IAW REO 601R-53-41-666, REV C,  SRM-51-21-11, SRM-51-25-06, & SRM-51-25-16. ORIGINAL THICKNESS MEASURED 0.080", REMAINING THICKNESS ON BLEND OUT AREA IS 0.076", FOUND TO BE WITHIN ALLOWABLE LIMITS.

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