As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VENT AVIONICS SYSTEM FAULT DURING TAKEOFF AND INITIAL CLIMB BLOWER VENT EXTRACT OUTLET FAILED TO OPEN WORK WITH RMA 3263 PART ORDERED GROUNDED - YES. R/R SKIN AIR OUTLET VALVE IAW AMM 21-26-53. TEST OK. AIRCRAFT RELEASED FROM MEL 21-26-04. MEL LIST UPDATED. AUTHORIZED BY SEAMC.