As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM: APU GENERATOR OFF BUS LIGHT ON WITH APU GEN ON LINE. PERFORMED OPS TEST & BITE CHECK ON APU GENERATOR CONTROL UNIT. DURING TEST, NO PROBLEMS FOUND AT THIS TIME. OPS CHECK NORMAL ALL MAINT. DONE IAW FIM 24-21 TASK 801.