# SDR SWIA2026040375647

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 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): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- 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/SWIA2026040375647

## Discrepancy

LEFT BS 280 WEB & ASSOCIATED FASTENERS CORRODED.  REMOVED AFFECTED FASTENERS FROM THE CAP ANGLE.  REMOVED 5 SOLID RIVET, 1 CHERRYMAX, AND 1 VISU-LOK IAW SRM 51-42-06-001-001-A01, SRM 51-42-13-001-001-A01, AND SRM 51-42-22-001-001-A01.  REMOVE CORROSION FROM LT BS 280 CAP ANGLE.  UPON FURTHER INVESTIGATION FOUND CORROSION ON WEB BEHIND CAP ANGLE REQUIRES TO REMOVE THE ANGLE.  REMOVED REMAINING RIVETS & CAP ANGLE IAW SRM 51-42-06-001-001-A01, SRM 51-42-13-001-001-A01, & SRM 1-42-22-001-001-A01. BS 280 BULKHEAD WEB FOUND TO BE 100% MATERIAL LOSS, REPAIRED IAW SRM 53-11-10-201-004-A01, REV 38D.  REMOVED & CUT EXISTING SPLICE PLATE & BS 280 BULKHEAD LOWER WEB IAW SRM 53-11-10-201-004-A01, REV 38D, STEPS 5B(1-3).  INSTALLED SERVICEABLE BS 280 CAP ANGLE IAW SRM 51-42-06-001-001-A01, & SRM 51-42-13-001-001-A01. FABRICATED, LOCATED, & DRILLED NEW BS 280 BULKHEAD LOWER WEB & SPLICE PLATE IAW SRM 53-11-10-201-004-A01, SRM 51-24-36-001-001-A01, & SRM 51-40-11-001-0

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