# SDR SWIA2026060876201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2026
- Submitted: June 9, 2026
- Operation: Air carrier
- Aircraft: [N973SW](https://openairdocs.org/aircraft/N973SW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7949
- Aircraft time: 48,839 hours, 42,470 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/SWIA2026060876201

## Discrepancy

FOUND MULTIPLE SPOTS OF SURFACE CORROSION ON LH PRESSURE FLOOR SILL FROM FS 409.00+128 AND FS 559.00 FROM LBL 36.00 TO LBL 45.00.   BLENDED CORROSION ON THE LH PRESSURE FLOOR SILL ASSY APPROX LBL 36.00 - LBL 45.00 AND BETWEEN FS409.00 +128 AND FS559.00 IAW SRM 51-21-06.  PERFORMED UT REMAINING THICKNESS MEASUREMENT WITH REFERENCE TO NDTM PART 4 51-00-001 AND FOUND TO BE ACCEPTABLE PER AND COMPLIED WITH 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 TASK CARD 51-900-1003-SKY.

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