What was found
TWO CRACKED FASTENER HOLES AT BS 760, WL 200 AT WING LBBL 70.5 RIB UPPER CHORD VERTICAL FLANGE WERE FOUND. ONE FASTENER HOLE WAS TRIMMED OUT AND REPAIRED WITH A FILLER, WHILE THE OTHER HOLE WAS REPAIRED WITH A FREEZE PLUG. INSTALLATION OF LT 70.5 CHORD PREVENTATIVE MOD KIT PER SB 727-57-0112 WAS THEN COMPLETED. AREA IS SUBJECT TO AD'S 94-07-08,90-06-09 AND 98-11-03. THE REPAIR WAS APPROVED AS AN AMOC TO AD04-07-08,AD-90-06-09 AND COMPLIANCE TO AD98-11-03 R1 BY BOEING'S DER WITH AN B110-3.