Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 100; Flight Crew Total 660; Flight Crew Type 450
ATC Issue All Types; Conflict NMAC
Flight Crew Requested ATC Assistance / Clarification
Procedure
We were holding over IWA VOR and requested the VOR-C approach at SDL. After receiving clearance from Phoenix ATC to enter Phoenix Class B; I saw an aerobatic type of aircraft; in my estimation; in proximity of less than 200 feet; come up from under us and rapidly gained altitude after passing. He was on a perpendicular track; coming from the left; from a lower altitude; to the right. It was a very close call. It was impractical for the crew to sight the traffic as it approached us from a lower altitude under our left wing. Also the traffic alert system was unavailable at that time; adding to the inability of the crew to detect the inbound traffic. Both aircraft were within Phoenix class B. I reported to Phoenix approach that we had a near miss and after receiving no response; I asked if Phoenix approach had copied our message; and the controller responded thereafter solely with 'roger'.
Pilot reports a near-miss encounter with another aircraft while in holding in the PHX Class B airspace. Pilot reported the event to ATC.