As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF FROM EWR. THE LEVER LATCH LOCK OVERRIDE WAS USED PER CHECKLIST AND THE GEAR RETRACTED. THE FLIGHT WAS CONTINUED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LEVER LATCH CIRCUIT BREAKER POPPED. THE CIRCUIT BREAKER WAS RESET AND TESTED IAW MM 32-31-21, PAGE 101 AND THE TEST WAS GOOD.