What was found
AFTER TAKEOFF, PASSING 400 FT WHEN MAIN AIR VALVES TURNED ON, SMOKE AND HEAT ENTERED THE ACFT. AN EMERGENCY WAS DECLARED AND LANDED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER TAKEOFF, PASSING 400 FT WHEN MAIN AIR VALVES TURNED ON, SMOKE AND HEAT ENTERED THE ACFT. AN EMERGENCY WAS DECLARED AND LANDED.