As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF OUT OF KTEB. ALL WOW INDICATED AIR MODE EXCEPT COMBINED WOW WHICH WAS AMBER GROUND. AT 1+03 HOURS AFTER TAKEOFF. COMBINED WOW WENT TO AIR. THE GEAR WAS RETRACTED AND ALL SYSTEMS RETURNED TO NORMAL. A FAULTY WEIGHT ON WHEELS SWITCH. REPLACED ALL SUSPECTED WEIGHT ON WHEELS SWITCHES AS A PRECAUTION. SINCE DEFECT COULD NOT BE DUPLICATED. PERFORMED ALL REQUIRED OPERATIONAL CHECKS IAW MM AND RETURNED AIRCRAFT TO SERVICE.