Glider in Midair Didn’t Turn on Transponder

Aviation International News » October 2006
October 9, 2006, 6:48 AM

The Schleicher sailplane that collided with a NetJets Hawker 800XP at about 16,000 feet near Smith, Nev., on August 28 was equipped with a transponder but it was not turned on. Transponder activation is not required for glider operations below 18,000 feet msl and outside controlled airspace. The glider pilot said he did not turn on the transponder because he intended to remain only in the local glider area and because he wanted to preserve his battery power for radio use. Since the glider’s transponder was not operating, the Hawker’s TCAS would have received no threat alert and the glider would probably have been invisible to ATC radar (unless it happened to paint the aircraft itself as a primary target).

Share this...

Please Register

In order to leave comments you will now need to be a registered user. This change in policy is to protect our site from an increased number of spam comments. Additionally, in the near future you will be able to better manage your AIN subscriptions via this registration system. If you already have an account, click here to log in. Otherwise, click here to register.