What was found
MCN - MINOR REPAIR - DURING C-18 CHECK A .5 INCH CRACK WAS FOUND ON LT AIR CONDITIONING BAY FORWARD OUTBOARD DUCT SUPPORT (TEE ANGLE) BS 530, LBL 58, WL 156. MAINTENANCE REMOVED CRACKED TEE ANGLE BS 530, LBL 58, WL 156; FABRICATED A NEW REPLACEMENT TEE ANGLE PER DWG 65-49573; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02 FIG 4 & 8 PG 1, 29, & 38.