What was found
IN MAINTENANCE, LONGERON DAMAGED. LONGERON WEB BETWEEN STRINGER 13L AND 14L AT FUSELAGE STA 31 CHAFED AND GOUGED BEYOND LIMITS. REMOVED DAMAGED STRINGER WEB, FABRICATED WEB OUT OF 7075-T6 .050 QQA250/13 ALODINED PRIMED AND INSTALLED PER SRM 53-00-03.