What was found
RH AFT OVERWING EMERGENCY EXIT STEP PLATE IS CORRODED CORRECTIVE ACTION: REMOVED CORROSION FROM R/H AFT OVER WING EMERGENCY EXIT STEP PLATE IAW CRJ 900 SRM 51-21-06-001-001-A01 FOUND TO BE WITHIN LIMITS, ORIGINAL MATERIAL IS 0.071", MAX MATERIAL REMOVED IS 0.003" MIN MATERIAL REMAINING IS 0.068" MAX ALLOWABLE DAMAGED REMOVED IS 0.007 IAW CRJ 900 SRM 53-41-23-101-001-A02. PRIMED AND PAINT R/H AFT OVER WING EMERGENCY EXIT STEP PLATE IAW CRJ 900 SRM 51-25-00-001-001-A01. INSTALLED SAME SERVICEABLE STEP PLATE IAW CRJ-900-AMM-20-21-00-910-801-A01.