As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND NUMEROUS RIVETS THAT ATTACH THE STRAKES TO THE AFT FUSELAGE TO BE MS20450 TUBULAR RIVETS, NOT THE MS20470AD (BJ5) RIVETS CALLED FOR ON DRAWING. THE MS20450 TUBULAR RIVETS WERE OBSOLETED IN THE UNITED STATES IN 1968. GALAXY ENGINEERING WAS CONTACTED AND DETERMINED THE AIRCRAFT COULD OPERATE TO ITS NEXT A INSPECTION, WHEN MFG ENGINEERING WILL HAVE TO DECIDE ON RIVET REPLACEMENT.