What was found
CONTROLLER DISPLAYED ''''RED'''' LIGHT ON TAXI OUT. CREW PUSHED ''''EXER'''' BUTTON TO CLEAR IT. AIRCRAFT WOULD NOT PRESSURIZE AFTER TAKEOFF. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CONTROLLER DISPLAYED ''''RED'''' LIGHT ON TAXI OUT. CREW PUSHED ''''EXER'''' BUTTON TO CLEAR IT. AIRCRAFT WOULD NOT PRESSURIZE AFTER TAKEOFF. (X)