As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A, ON CLIMBOUT GOT A BTB TRIP ON NR 2 WITH MOMENTARY FLASH OF FIRE WARNING HAD GCU LT ON GEN PARALLEL SHOWED MOMENTARY FLUX ON AC VOLT. RESET PWR AOM OPS NORMAL REMAINDER OF FLIGHT. NOTED TO MMOC INFM NR 2 BTB OK WITH APU PWR AND FIRE WARNING SYS TEST NORMAL. RAN ENG NR 2 FOR GCU OPR. CHECKED ALL OK BY FLT CREW.