What was found
1 EA HOLE HAS BREAKUP CONDITION ON CENTER OF STRINGER END FITTING NR 21L AT BS 1241 AFT LT SIDE UPPER. REMOVED AND INSTALLED NEW END FITTING PER B747 51-30-02 PAGES 8-9 AT BS 1241 STR 21L. FABRICATED AND INSTALLED NEW STR NR 21L AT BS 1241-1265 PER B747 SRM 51-30-02 PAGES 8-9. FABRICATED AND INSTALLED NEW INTERCOSTAL WEB AT BS 1241-1258 STR NR 21L PER B747 SRM 51-30-02 PAGES 2-3 AND B747 SRM 51-30-02 PAGES 8-9.