As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF T/C 78273000, ENG 1 SHORTTIME FAULT 75-20371 THE HMU VSV CONTROL CURRENT IS OUT OF RANGE. FLT LEG 0 &1,. GROUNDED - YES. ACCOMPLISHED INTERROGATE THE FMC CDU FOR ENGINE FAULTS FOR #1 ENGINE ESN 895-405 PER T/C 78273000, VERIFIED NO MSG FAULTS LOGGED FOR THE LAST 10 FLT LEGS. EEC BITE TESTED GOOD W/O FAULTS.