What was found
DURING CHECK-C MAINT, FOUND .1875 INCH CRACK AT THE RT FWD DORSAL FIN ATTACH ANGLE, STA 1421. REMOVED AND REPLACED ATTACH ANGLE PER SERVICE BULLETIN 53-223, AND PER MD9-AD-13.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CHECK-C MAINT, FOUND .1875 INCH CRACK AT THE RT FWD DORSAL FIN ATTACH ANGLE, STA 1421. REMOVED AND REPLACED ATTACH ANGLE PER SERVICE BULLETIN 53-223, AND PER MD9-AD-13.