As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, AIRCREW REPORTED GEAR DISAGREE AND NOSE GEAR DOR OPEN. CREW SELECTED GEAR DOWN AND GOT THREE GREEN DOWN AND LOCKED. RETURNED TO FIELD WITH NO FURTHER INCIDENT. MAINTENANCE TROUBLESHOOTING AT THIS TIME. MAINTENANCE SERVICED STRUT. OPS CHECKS GOOD ON DROP CHECK. (M)