What was found
VERT STABILIZER LEADING EDGE NOSE RIB NR 1 HAS CHAFING DAMAGE ON BOTH SIDES OF LIGHTNING HOLE AT ITS LIP. RT SIDE IS CRACKED DOWN TO THE LIPS RADIUS AND LEFT SIDE IS WORN A LITTLE AWAY AND WAS CAUSED BY ANTI-ICE DUCTING THAT PASSES THROUGH THE HOLE. REPAIR VERT STABILIZER RIB NR 1 CHAFING DAMAGE IAW BAE FAX NR DS/W/TS/28376/0 AND DJR/RJ0930-96. (M)