What was found
DURING HEAVY CHECK, LT WING INSIDE ACCESS PANEL 521AB FUEL VENT TUBE, SHOWS SIGNS OF DEGRADATION AT CONNECTION POINT. MX R & R LT WING FUEL VENT TUBE IAW AMM 20-10-13,20-10-03, 20-13-21.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK, LT WING INSIDE ACCESS PANEL 521AB FUEL VENT TUBE, SHOWS SIGNS OF DEGRADATION AT CONNECTION POINT. MX R & R LT WING FUEL VENT TUBE IAW AMM 20-10-13,20-10-03, 20-13-21.