What was found
* CORROSION DETECTED ON "AFT" SIDE VERTICAL FACE OF F.S. 847.00+16.00, INTERNAL CENTER BELLY, STGR 27 LEVEL, BETWEEN REINFORCEMENT STRUCTURE (MARKED). (C-CHECK RO 7/7/2021) REMOVED CORROSION ON AFT SIDE VERTICAL FACE OF FS 847.00+16 AT STGR 27 REF CRJ 900 SRM 51-21-06-001-001-A01. FOUND OUT OF LIMITS. RECEIVED AND COMPLIED WITH ALL STEPS OF REO 690-53-51-291 REV--, DATED 2021-06-01. PRESSURE CHECK GOOD.