What was found
CORROSION ON INTERCOSTALS(3EAS) BTW FS=349 TO FS=364 NEAR STGR 27 AND STGR 26RH AT MAIN AVIONICS COMPARTMENT. INTERCOSTALS(2EAS) BTW FS=349 TO FS=364 NEAR STGR 27 AT MAIN AVIONICS COMPARTMENT WERE EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-21-23-101-003-A02 AND WERE REPLACED PER CRJ900 SRM 51-42-21-001-001-A01 AND CRJ900 SRM 51-42-06-001-001-A01 AND CORROSION WAS REMOVED ON ANGLE ATTACHMENT (STRGR 26RH) PER CRJ900 SRM 51-21-06-001-001-A01 AND WAS EVALUATED WITHIN LIMITS PER CRJ-900 SRM 53-21-23-101-003-A02