# SDR SWIA2026040375641

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2026
- Submitted: April 3, 2026
- Operation: Air carrier
- Aircraft: [N631SK](https://openairdocs.org/aircraft/N631SK), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10329
- Aircraft time: 28,716 hours, 22,687 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Gouged
- Location: Zone 100
- 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/SWIA2026040375641

## Discrepancy

SKIN BELOW FORWARD DRAIN MAST GOUGED IN MULTIPLE LOCATIONS.  BLENDED OUT GOUGES IAW 51-12-00-001-001-A01.  PERFORMED UT THICKNESS MEASUREMENTS OF REWORKED AREAS IAW NDTM, PART 1, 51-20-004-270-A01, REV-37.  FOUND LOWEST REMAINING THICKNESS OF .057 OR GREATER.  SKIN ORIG THICKNESS: 0.061, LOWEST REMAINING THICKNESS: 0.057. DAMAGE NOT WITHIN ALLOWABLE DAMAGE LIMITS. NO DAMAGE ALLOWED IN LOCATION IAW SRM 53-21-01-101-006-A01. COMPLIED WITH STEPS 1 - 5. ON REO 670-53-21-2782, REV-.  PERFORMED LIQUID PEN INSP OF REWORKED AREAS IAW NDTM PART 1, 51-20-008-230-A01, REV-37. NO INDICATIONS NOTED. COMPLIED WITH STEPS 1-4 OF REO 670-53-21-2782, REV-. INSTALLED FWD DRAIN MAST IAW REO 670-53-21-2782, REV-.

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