What was found
(CAN) DURING A ROUTINE MX INSP, A SMALL CRACK-LIKE INDICATION HAD BEEN DISCOVERED ON A WEB OF THE MGB HSG ON AIRCRAFT 920057. THE LOCATION OF THE INDICATION HAS BEEN DESCRIBED AS BEING ON (1) OF (4) STIFFENING WEBS THAT CONNECTS THE MAIN HSG WALL TO THE CYLINDRICAL PORTION OF THE HSG THAT SUPPORTS THE LT INPUT MODULE. THE CRACK WAS UNDER WATCH IAW INSTRUCTIONS ISSUED BY MFG PM92-SS-09-001. TRANSMISSION WAS SUBSEQUENTLY REPLACED.