What was found
AIRCRAFT DEPARTED AND CABIN WOULD NOT PRESSURIZE, RETURN FOR MAINTENANCE, RESET DUMP SWITCH TO NORMAL AND SAFETIED WITH BREAKAWAY WIRE. GROUND CHECK PERFORMED GOOD, RETURN AIRCRAFT TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT DEPARTED AND CABIN WOULD NOT PRESSURIZE, RETURN FOR MAINTENANCE, RESET DUMP SWITCH TO NORMAL AND SAFETIED WITH BREAKAWAY WIRE. GROUND CHECK PERFORMED GOOD, RETURN AIRCRAFT TO SERVICE.