What was found
DURING C-CHECK, FOUND HORIZONTAL STABILIZER JACK SCREW THREADS CORRODED AND PITTED. REPLACED JACK SCREW AND NUT ASSEMBLY IAW DC-9 SMM 27-40-1.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING C-CHECK, FOUND HORIZONTAL STABILIZER JACK SCREW THREADS CORRODED AND PITTED. REPLACED JACK SCREW AND NUT ASSEMBLY IAW DC-9 SMM 27-40-1.