# SDR SWIA202503260130

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2025
- Submitted: March 26, 2025
- Operation: Air carrier
- Aircraft: [N946SW](https://openairdocs.org/aircraft/N946SW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7776
- Aircraft time: 49,001 hours, 42,442 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/SWIA202503260130

## Discrepancy

FOUND MULTIPLE SPOTS OF SURFACE CORROSION ON THE LH PRESSURE FLOOR SILL ASSY BETWEEN FS 409 + 128 & FS 559.00 AND IN BETWEEN LBL 36.0 & LBL 45.0 (C-CHECK RO 03/25/2024)BLENDED CORROSION ON LH PRESSURE FLOOR SILL ASSY WL73.00 BETWEEN FS409 + 128 TO FS559.00 AND BETWEEN LBL36.00 AND LBL45.00 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.  COMPLIED WITH REO 601R-53-41-666 REV "-C" DATED 2012-11-06.  COMPLIED WITH TASK CARD 51-900-1003-SKY.  COMPLIED WITH M-337.  COMPLETED CORROSION FINDINGS REPORT.

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