As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB AFTER GEAR RETRACTION, RED DOOR INDICATION AND RIGHT GEAR RED LIGHT INDICATION REMAINED ILLUMINATED. GEAR WAS RECYCLED AND RIGHT MAIN GEAR INDICATION HAD SAME PROBLEM. ALL INDICATIONS WERE NORMAL WITH GEAR HANDLE PLACED IN 'OFF' POSITION. AIRCAFT RETURNED TO PHL AND LANDED WITHOUT INCIDENT. REPLACED GEAR ACCESSORY BOX AND PERFORMED GEAR SWING, OPERATIONAL CHECK OK.