# SDR SWI2025F00667

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2025
- Submitted: May 27, 2025
- Operation: Air carrier
- Aircraft: [N877AS](https://openairdocs.org/aircraft/N877AS), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7579
- Aircraft time: 43,060 hours, 38,393 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Pressure Deck
- 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/SWI2025F00667

## Discrepancy

LH PRESSURE FLOOR HAS SEVERAL SPOTS OF SURFACE CORROSION BETWEEN FS461.00 TO FS513.00 ON LBL44.00.  (FILED CLOSED)BLENDED CORROSION ON THE LH PRESSURE FLOOR SILL ASSY BETWEEN FS461.00 TO FS513.00 ON LBL44.00 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 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.  COMPLIED WITH M-337.  COMPLETED CORROSION FINDINGS REPORT.

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