As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - AIRCRAFT WAS POSITION FERRYING TO CLT AND DURING CLIMB CREW RECEIVED RIGHT MAIN GEAR RED UNSAFE LIGHT. CREW WAS ADVISED TO RETURN TO FIELD AT PHL. FLIGHT LANDED WITH NO FURTHER INCIDENT. MAINTENANCE INSPECTED GEAR, SENSORS AND WIRING. JACKED AIRCRAFT, SWUNG GEAR AND FOUND M982 LOGIC CARD HARD FAULTED. REPLACED SAME AND PERFORMED SYSTEM TEST. SWUNG GEAR SEVERAL TIMES. ALL TESTED GOOD. (M)