As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF FOLLOWING MESSAGE APPEARS: "VENT BLOWER/EXTRACT FAULT". THIS GENERATED A PRESSURIZATION FAILURE. REPLACED THE AEVC(10HQ) REF AMM 21-26-34-000-001 AND AMM 21-26-34-100-001 AND PERFORMED OPS TEST IAW AMM 21-26-51-710-051-A ALL OK.