Bonanza 33
Flight Crew Air Transport Pilot (ATP)
Other / Unknown
Conflict NMAC
General None Reported / Taken
Human Factors; Airspace Structure; Aircraft
Student demonstrating a diversion to CHD airport at 5500 FT. Student was maneuvering for a right base to runway 4R. About 6nm South of CHD at about 2500-3000 FT MSL; during descent I noticed an aircraft appear in my vision from behind my front door post. The aircraft seemed level at about same altitude and around 150-200 FT lateral separation and head on. By the time I could take control to attempt to avoid; the aircraft moved from about my 1:00 to 5:00 position; nearly instantly. I noticed a white piper (warrior) with maroon or orange numbers. It appeared to be a single pilot aboard the other aircraft. After notifying CHD tower of NMAC; I asked if she saw anything on radar. She said that it appears that the aircraft had inoperable transponder. There was no TCAD indication of any kind; as well.Remain vigilant on scanning; even when in contact with ATC. When workload situations are higher; divide attention accordingly. Scan blind spots (door post) more frequently.
We were approximatly on radial 223; 12 NM away from IWA VOR. At that moment we were descending between 2500 and 3000 FT MSL into Chandler Airport and already had contact with tower. I was preparing the arrivel into CHD and when I looked outside to the right I saw an airplane closing in on us wich was between 150 and 200 FT away from us. Around the same time I saw the airplane my Checkpilot saw the airplane as well and he wanted to evase but before he could the plane passed by on the distance of 150-200 FT. After this had happend we called the tower to report a near miss. The other airplane didn't had a working transponder since our TCAD didn't detect it and the plane wasn't on the the radar of ATC as well. As the plane passed by we saw the plane was white with what looked like some orange on the tail. My Check pilot believed it was an airplane wich looked like a piper warrior.Don't only rely on your TCAD or traffic suggestions from ATC. always trust your eyes. And ofcourse look more outside of the airplane.
BE33 instructor and two students report a NMAC with a small low wing aircraft about 6 NM south of CHD at 2;500 FT. The other aircraft was detected too late to take evasive action and passed within 200 FT. The other aircraft did not have an operating transponder.