As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW RECEIVED 3 RED LIGHTS AND THREE GREEN LIGHTS WHEN GEAR WAS LOWERED ON APPROACH TO EWR. THE APPROACH WAS ABORTED AND THE CHECKLIST WAS ACCOMPLISHED. WHEN THE GEAR WAS LOWERED AGAIN NORMAL INDICATION WAS RECEIVED AND THE AIRCRAFT LANDED WITHOUT INCIDENT. TROUBLESHOOTING FOUND THE NOSE LANDING GEAR CONTROL VALVE OUT OF ADJUSTMENT. THE LANDING GEAR CONTROL VALVE WAS ADJUSTED IAW MM 32-31-00, PAGES 501-504. OPERATIONAL CHECKS WERE GOOD.