As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN FOR MAINTENANCE WITH MISSING FLANGE BOLTS, BOLTS NOT OF STAINLESS STEEL INSTALLED CAUSING FLANGE BOLT HOLES TO ELONGATE AND POSSIBLE PIPE SEPARATION. NEW AIRCRAFT RECEIVED WITH STANDARD BOLTS INSTALLED. NO INSTALL INSTRUCTIONS IN MM. (X)