As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT OF PHL UPON GEAR RETRACTION, A LOUD NOISE WAS HEARD IN NOSE GEAR. FLIGHT RETURNED TO PHL AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NOSE GEAR DOOR CABLE BROKEN. REPLACED DOOR CABLE AND DOOR LINK. GEAR AND GEAR DOOR OPERATIONAL CHECK OK.