What was found
DURING HEAVY CHECK, RT HORIZONTAL STABILIZER RIB 12 IS CRACKED. MAINTENANCE REPAIRED. RT HORIZONTAL STABILIZER RIB 12 IAW ETD 2016-170-013970.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK, RT HORIZONTAL STABILIZER RIB 12 IS CRACKED. MAINTENANCE REPAIRED. RT HORIZONTAL STABILIZER RIB 12 IAW ETD 2016-170-013970.