What was found
DURING CLIMB, COULD NOT HOLD CABIN PRESSURIZATION. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED CRACKED ANTI-ICE DUCT. PERFORMED PRESSURIZATION CHECK, OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CLIMB, COULD NOT HOLD CABIN PRESSURIZATION. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED CRACKED ANTI-ICE DUCT. PERFORMED PRESSURIZATION CHECK, OPERATIONAL CHECK OK.