What was found
UPON RECEIVING OVERHAULED LEFT WING FUEL CELL, FOUND FLAPPER VALVE IN FUEL TANK STUCK CLOSED AND COULD NOT BE OPENED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UPON RECEIVING OVERHAULED LEFT WING FUEL CELL, FOUND FLAPPER VALVE IN FUEL TANK STUCK CLOSED AND COULD NOT BE OPENED.