What was found
SJO - DURING C-CHECK, THE EXTERNAL FUSELAGE BETWEEN STRINGERS 23L AND 24L, BS 947, 'T' WAS FOUND WITH A CRACK. REPLACED 'T' AT BS 947 BETWEEN STRINGERS 23 LEFT AND 24 LEFT PER SRM 51-10-1 PAGE 5, SRM 51-30-2. FABRICATED 'T' PER COOPESA EO COO-3-53-212-99, DATED APR 5, 1999. (M)