What was found
'NO FLIGHT' - FOUND DURING 'HEAVY C-MAINTENANCE CHECK' AT TIMCO HEAVY MAINTENANCE FACILITY (WINSTON/SALEM, NC). FOUND 13 DRILL MARKS ON MCD CUT OUT INTERNAL DOUBLER EXTENDING THROUGH GILLINER STRAP HOLES FROM BS 660 TO BS 670, STR S4L TO STR S7L. REPAIRED DRILL START MARKS ON MCD INTERNAL DOUBLER STRAP IAW RFTS N180AX-11-20568 AND N180AX-38-21961 AND 8110-3, DATED 11-1-99. AIRCRAFT WAS RETURNED TO SERVICE. (X)