What was found
AIR VALVE LIGHT ILLUMINATED IN FLIGHT, ICING CONDITIONS REPORTED, SO FLIGHT CREW RETURNED TO THE FIELD. THE GARRETT VALVE WAS CLEANED AND THE CANNON PLUG RE-SECURED. GROUND RUNS INDICATED ALL SYSTEMS OPERATING NORMALLY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR VALVE LIGHT ILLUMINATED IN FLIGHT, ICING CONDITIONS REPORTED, SO FLIGHT CREW RETURNED TO THE FIELD. THE GARRETT VALVE WAS CLEANED AND THE CANNON PLUG RE-SECURED. GROUND RUNS INDICATED ALL SYSTEMS OPERATING NORMALLY.