SDR SWIA2020020348118

Service difficulty report · Intercostal · Cndair CL6002B19

Difficulty date: December 12, 2019
Submitted: February 3, 2020
Operation: Air carrier
Aircraft: N487CA
Make and model: Cndair CL6002B19
Aircraft serial: 7729
Aircraft time: 33,427 hours, 32,142 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Condition: Corroded
Location: Emergency Exit
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

* RH EMERGENCY EXIT DOOR Â€“ CORROSION ON INTERCOSTAL ABOVE WINDOW ON SKIN SIDE ATTACHMENT FLANGE (MARKED). (C-CHECK) RO 1/29/2020 REMOVED CORROSION ON RH EMERGENCY EXIT DOOR ON INTERCOSTAL ABOVE WINDOW ON SKIN SIDE ATTACHMENT FLANGE. REF. CRJ 200 SRM. ORIGINAL MATERIAL THICKNESS OF INTERCOSTAL IS .040" REF BOMBARDIER. REMAINING MATERIAL LOSS AFTER BLENDED OUT IS .037" MATERIAL LOSS IS .003" ALLOWABLE LOSS IS 10% OF .040" = .004" AND FOUND TO BE WITHIN LIMITS. REF CRJ200 SRM.