As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING MX CHECK LT FIREWALL (FUEL) SHUT-OFF VALVE WAS FOUND TO BE INTERMITTENT. THIS VALVE HAD JUST BEEN REPLACED 32.6 HOURS AGO WITH AN OVERHAULED UNIT. OVERHAULED VALVE FROM ANOTHER SUPPLIER INSTALLED ON ACFT. SYSTEM TESTED FOR OPERATION.