What was found
ON INVESTIGATION OF BS 360 BOLTS AND BOLT HOLES, BOLT HOLE IMMEDIATELY BELOW STR 24L HAS EXCESSIVE CORROSION INSIDE HOLE BORE. REPAIR CARRIED OUT IAW SRM 51-10-06, SRM 51-30-02 AND SMRO EO 2002-052-004 UPS ENGINEERING FILE NR 727-53-20077.