As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALL THREE FUEL FLOW GAUGES WENT TO -0- CLIMBING THROUGH FL330, 28V DC AND 115 VAC FUEL FLOW CIRCUIT BREAKERS ARE POPPED. REPLACED FUEL FLOW POWER SUPPLY PER B-727 M/M 73-31-12. INDICATION NORMAL ON GROUND RUN-UP IAW JRH 5.2, AND GMM 20.4.