As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF AND GEAR WAS RETRACTED A VERY LOUD VIBRATION WAS HEARD COMING FROM THE NOSE GEAR WHEEL WELL AREA,THE AIRCRAFT RETURNED. WHEN GEAR WAS SELECTED DOWN,THE GEAR DID NOT COME DOWN THE HYDRAULIC PRESSURE WAS ZERO,COMPLIED WITH EMERGENCY GEAR LOWERING PROCEDURES AND ALL GEAR CAME DOWN, LANDED WITH OUT INCIDENT. POST FLIGHT INSPECTION REVEALED A BROKEN NOSE GEAR DOOR LINKAGE ROD END BEARING AND A CRACKED HYDRAULIC LINE