As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TEST FLIGHT, RT AUX TO MAIN FUEL TRANSFER SYSTEM STOPPED TRANSFERRING. BOLT FOUND IN LEVEL CONTROL VALVE CAUSING VALVE TO STOP TRANSFER SYSTEM. BOLT REMOVED, SYSTEM FUNCTIONED NORMALLY. SAME SNAG REPORTED DURING CUSTOMER ACCEPTANCE FLIGHTS AT MFG. THIS F.O.D. HELD THE VALVE CLOSED INTERMITTENTLY. (TC NR 20071010001)