What was found
During taxi out from DFW while performing taxi checks flight control warning test would not work returned to gate.ACTION TAKEN:R&R'd audio control box ops check OK per MM
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
During taxi out from DFW while performing taxi checks flight control warning test would not work returned to gate.ACTION TAKEN:R&R'd audio control box ops check OK per MM