What was found
REPORTED DAMAGE TO RT HORIZ STABILIZER REAR SPAR HINGE FITTING HOLE NR28, MFG PROPOSED THE REPAIR SHOWN IN FIG 1 (FABRICATE AND INSTALL FREEZE PLUG AT SUBJECT HOLE LOCATION IAW SRM 51-10-08). DEEMED THE REPAIR ACCEPTABLE WITH THE FOLLOWING PROVISIONS: PERFORM A CONCENTRIC 0.060 INCH DIAMETER INSURANCE CUT. USE 0.200 INCH MINIMUM THICKNESS MATERIAL FOR FREEZE PLUG RETAINER. MACHINE A RADIUS OR CHAMFER THE RETAINER TO PREVENT INTERFERENCE WITH HINGE FITTING FILLET RADIUS. DO NOT BEND THE RETAINER TO PREVENT INTERFERENCE. INSTALL BACB30US6K* BOLT WITH A TORQUE VALUE OF 400-450 INCH-POUNDS. REPAIR TO OTHERWISE CONFORM TO SRM AND DWG REQUIREMENTS.