As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKE OFF, ON GEAR RETRACTION, CREW HEARD NOISE AND VIBRATION IN NOSE GEAR AREA UNTIL GEAR WAS LOWERED. CREW CYCLED GEAR, RETURNED AND LANDED WITHOUT INCIDENT. AN INSPECTION IS ONGOING. AS SOON AS INFORMATION BECOMES AVAILABLE IT WILL BE PROVIDED. MAINTENANCE JACKED AIRCRAFT, RETRACTED NLG AND FOUND NGL DOOR TIGHT AND POPPING OPEN. THE FORWARD NLG DOOR LINK ASSEMBLY WAS REMOVED AND REPLACED IAW ALL APPLICABLE MANUALS.