What was found
DURING HEAVY CHECK STRINGER 20L BETWEEN FRAMES 83-84 IS CORRODED. MAINTENANCE REPAIRED BY INSTALLING DOUBLER IAW ETD 2016-170-010463.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK STRINGER 20L BETWEEN FRAMES 83-84 IS CORRODED. MAINTENANCE REPAIRED BY INSTALLING DOUBLER IAW ETD 2016-170-010463.