What was found
REAT PRESSURE BULKHEAD U/T CRACK INDICATION RBL 36.20 49"-55" ABOVE FLOOR (6EA FASTNERS) (C CHECK) RO 3/2/2020 REMOVED FASTENERS AND REAMED FASTENER HOLES FROM 5/32" TO .215 ON REAR PRESSURE BULKHEAD 49"-54" ABOVE FLOOR AND INSTALLED FASTENERS PER CRJ200 SRM. REAMED FASTENER HOLE AT 55" ABOVE FLOOR TO .256 PER BOMBARDIER REO AND INSTALLED FASTENER ACCOMPLSHED HFEC OPEN HOLE INSPECTION OF THE AFT PRESSURE BULKHEAD. RBL 36.20, 49"-55" ABOVE FLOOR. (5EA) FASTNERS HOLES AT .215 AND (1EA) AT 256. NO DEFECTS NOTED. OLYMPUS 600 NORTEC. AV8958 CAL: JULY, 2020.