What was found
ORD - GEAR HANDLE LOCK WOULD NOT RELEASE AFTER TAKEOFF FROM ORD. COULD NOT RAISE GEAR. FOUND CANNON PLUG ON LANDING GEAR RELAY BOX HAD A LOOSE PIN. SECURED PIN AND RETURNED TO SERVICE. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ORD - GEAR HANDLE LOCK WOULD NOT RELEASE AFTER TAKEOFF FROM ORD. COULD NOT RAISE GEAR. FOUND CANNON PLUG ON LANDING GEAR RELAY BOX HAD A LOOSE PIN. SECURED PIN AND RETURNED TO SERVICE. (X)