# SDR SWI2025F01859

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2025
- Submitted: December 22, 2025
- Operation: Air carrier
- Aircraft: [N944SW](https://openairdocs.org/aircraft/N944SW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7764
- Aircraft time: 46,081 hours, 44,730 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/SWI2025F01859

## Discrepancy

FOUND MULTIPLE SPOTS OF CORROSION ON RT PRESSURE FLOOR SILL MEMEBER FROM FS 409.00 +128 TO FS 559.00. MULTIPLE SPOTS OF CORROSION ARE ON AREAS THAT WERE PREVIOUSLY BLENDED OUT,    BLENDED CORROSION ON RH PRESSURE FLOOR SILL ASSY WL73.00 BETWEEN FS409 + 128 TO FS559.00 AND BETWEEN RBL36.00 AND RBL45.00 WITH REFERENCE TO SRM 51-21-06.  PERFORMED UT REMAINING THICKNESS MEASUREMENT WITH REFERENCE TO NDTM PART 4 51-00-001 AND FOUND TO BE ACCEPTABLE PER REO 601R-53-41-666 REV "-C" DATED 2012-11-06.  PERFORMED EDDY CURRENT INSPECTION WITH REFERENCE TO NDTM PART 1 51-20-06 AND NDTM PART 6 53-00-096 WITH NO CRACKS FOUND.

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