What was found
DEN - FLIGHT 4207, ON TAXI UNABLE TO CALL OR COMMUNICATE WITH THE FLIGHT ATTENDANT ON THE PA SYSTEM. RETURNED TO THE GATE. MAINTENANCE REPLACED THE AECU. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DEN - FLIGHT 4207, ON TAXI UNABLE TO CALL OR COMMUNICATE WITH THE FLIGHT ATTENDANT ON THE PA SYSTEM. RETURNED TO THE GATE. MAINTENANCE REPLACED THE AECU. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.