What was found
DURING 'C' CHECK, MAINTENANCE FOUND CENTER WING BOX UPPER SKIN RBL 45-50 BETWEEN STR 4 AND 7 AFTER FASTENER REMOVAL, SKIN WAS FOUND TO BE BEYOND LIMITS. INSTALLED REPAIR IAW DHC SK 915-577 AND ENGINE FILE NR 727-57-1071.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING 'C' CHECK, MAINTENANCE FOUND CENTER WING BOX UPPER SKIN RBL 45-50 BETWEEN STR 4 AND 7 AFTER FASTENER REMOVAL, SKIN WAS FOUND TO BE BEYOND LIMITS. INSTALLED REPAIR IAW DHC SK 915-577 AND ENGINE FILE NR 727-57-1071.