As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACK INDICATION AT RT COLLECTOR VALVE AFT ATTACH HOLE BORE. OPENED HOLE TO .3125 INCH AND FABRICATED FREEZE PLUG FROM 7075-T6 BAR MATERIAL, LIQUID PENETRANT INSPECTION ON AREA OF DAMAGE PRIOR TO INSTALLING FREEZE PLUG. INSTALLED FREEZE PLUG AFTER CLEANING AREA. WORK WAS DONE IN ACCORDANCE WITH BOMBARDIER REO 601R-57-21-404.