What was found
AIR RETURN DUE TO VENT AVNCS SYS FAULT AFTER TAKEOFF. R & R AVIONICS SKIN AIR INLET VALVE IAW AMM 21-26-52. OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR RETURN DUE TO VENT AVNCS SYS FAULT AFTER TAKEOFF. R & R AVIONICS SKIN AIR INLET VALVE IAW AMM 21-26-52. OPS CHECK GOOD.