What was found
PAE - FLT 7820 - DURING ROUTINE SCHEDULED C-9 MAINTENANCE CHECK, FOUND CRACKED LWR FLANGE OF STRINGER 27L AT BS 360. REMOVED DAMAGED HAT CHANNEL AT BS 360, STRINGER 27L, FABRICATED NEW CHANNEL, TREATED, PRIMED AND INSTALLED PER SRM 51-10-03. (M)