What was found
SJO - DURING C-CHECK, THE EXTERIOR FUSELAGE SKIN WAS FOUND WITH CRACKS BETWEEN STRINGER 14 LEFT AND STRINGER 16 LEFT AT BS 727A. REPAIRED THE FUSELAGE SKIN SECTION BETWEEN BS 727 AND BS 727B PLUS 15 INCH, FROM STRINGER 14 TO STRINGER 20 LEFT SIDE DUE TO CRACKS PER COOPESA EO COO-3-53-218-99, DATED APR 6, 1999, AND BOEING FAXES COO-SJO-99-0443RR, DATED APR 5, 1999 AND BOEING FAX COO-SJO-99-0515RR, DATED APR 19, 1999. (M)