As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SIG EVENT - PILOT REPORTED THAT THE RT FIREWALL FUEL VALVE T-HANDLE FLICKERED ON AND OFF IN FLIGHT. MX TESTED FIRE LOOP ON RT SIDE, TESTED NORMAL. INSPECTED FWD AND AFT LOOP FOUND CHAFE ON TOP SIDE OF FWD LOOP. R & R LOOP IAW BMM 26-10-01. OPS CHECK GOOD AT THIS TIME PN 244-12886.