What was found
CORROSION WERE FOUND ON INTERCOSTALS (4 EIA)BETWEEN FS 349 AND FS364 AND STRGR.26R TO 26L IN REF SB 53-057C AT MAIN AVIONICS COMP.(EIE). INTERCOSTALS (2 EA) ON RBL 2 AND LBL 2 BETWEEN FS349 -FS364 WERE INSTALLED PER CRJ-900 SRM 51-42-06 AND CRJ-900 SRM 51-42-21 AND INTERCOSTALS (2EA) OF SIDE OF STGR 26RH AND 26LH BETWEEN FS349 - FS364 WAS MEASURED AND WERE FOUND WITH THE FOLLOW ORIGINAL THICNNESS IS = 0.063 IN. AND REMAINING THICKNESS IS= 0.060 IN. THEREFORE AREAS ARE WITHIN OF LIMITS PER CRJ/900 SRM 53-00-00