As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL FROM LAX, HAD ZNS FAULT ON NR 1 GENERATOR BUS. ABNORMAL PROCEDURES ACCOMPLISHED. BUS POWER RESTORED FOR APPROXIMATELY 5 MINUTES THEN ZNS FAULT OCCURRED AGAIN. BUS SECURING PROCEDURES ACCOMPLISHED. REPLACED JET BLOW AWAY CONTROL VALVE IAW DC8 MM 75-20-4. OPS CHECKED GOOD.