What was found
DURING MBV INSPECTION, FOUND 3 OF 4 WINDSHILED CENTER POST LOWER FITTING BOLTS, PN NAS6405A18, SHEARED. THE ACFT WAS REMOVED FROM SERVICE. R & R THE 1 BOLT AND INSTALLED 3 BOLTS IAW AMM 53-12-02 AND 53-12-01. THE ACFT WAS RETURNED TO SERVICE.