As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) QUALITY ESCAPE DISCLOSURE LETTER: MISSING CAD PLATING ON THE INSIDE BORE FOR PART NUMBER 600-31944-5. PART SHOULD BE MANUFACTURED AS PER DRAWING 600-31944-5 REV BB, EDL REV 01. AFFECTS CHALLENGER 650 AIRCRAFT SERIAL NUMBERS 6117 TO 6147. BOMBARDIER INTEGRITY PIC3-0605-1191 TO FOLLOW AND DOCUMENT. ++X++ (TC# 20190510006)