What was found
DURING HEAVY CHECK MAINTENANCE FOUND VERTICAL STABILIZER TRAILING EDGE RIB 10 CRACKED. REPAIRED VERTICAL STAB TRAILING EDGE RIB 9/10 IAW ETD2020-170-05653.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK MAINTENANCE FOUND VERTICAL STABILIZER TRAILING EDGE RIB 10 CRACKED. REPAIRED VERTICAL STAB TRAILING EDGE RIB 9/10 IAW ETD2020-170-05653.