As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NO UPLOCKING FOR NOSE LANDING GEAR DURING RETRACTION CYCLE. AFTER TAKE OFF THE WHOLE PROCESS OF GEAR RETRACTING WAS REALLY SLOWLY, BUT THE MAINS SUCCEED TO LOCK UP. AS THE NOSE GEAR DID NOT RETRACT THE CREW DECIDED TO ALTERNATE EXTEND THE GEAR AND LANDED. THE CREW REPORTED NO MALFUNCTION, NO LEAKS AND NO ABNORMAL INDICATION. EVEN THE HYDRAULIC SYSTEM PRESSURE WAS OK AND QTY ALSO.