What was found
DFW - CREW REPORTED ALL THREE GEAR INDICATED "UNSAFE". EMERGENCY DECLARED FLIGHT LANDED DFW WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED GROUND SENSING INTERLOCK SWITCH. SYSTEM GROUND CHECK NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DFW - CREW REPORTED ALL THREE GEAR INDICATED "UNSAFE". EMERGENCY DECLARED FLIGHT LANDED DFW WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED GROUND SENSING INTERLOCK SWITCH. SYSTEM GROUND CHECK NORMAL OPERATION.