Narrative:

Before departure from the chandler airport, I decided we should use the SID procedure in order to give us time to climb above the phx class B airspace. The departure procedure is basically direct south to the stanfield VOR. Although we were headed north, I felt that a couple of extra mins was worth avoiding the class B airspace. Upon arrival at the aircraft I discussed this plan with the other pilot who informed me that it would be better to depart to the north under the class B airspace. I believe his reasoning was that it would save time and fuel -- 2 things we would be short on during this long trip with some stiff headwinds. By this time I was already in the aircraft and had to organize a route quickly so we could get moving. Looking at the charts, a turn direct to the williams/gateway VOR would keep us clear of the class B airspace. Once we were near the VOR, a turn to the north would allow us safe passage to the north around falcon field and scottsdale. Unfortunately, in my haste to keep us clear of the class B airspace, I neglected the fact that williams class D airspace overlaps chandler and even that williams was class D. After departure from the right swbound runway we were cleared for an immediate left turn and frequency change. The fact that we were given the frequency change so soon after departure caused an alarm to go off in my head. I told the other pilot to level off at 3500 ft MSL and I checked my charts. By the time I realized what had occurred we were inside the west corner of williams airspace. I gave the pilot an immediate turn to the north and I switched over to williams tower. I estimate we incurred the airspace by about 1/4 - 1/2 NM based on the GPS ground track display. It seemed as though we were in the airspace as quickly as we were out of it. Once I was sure we were clear, I gave the other pilot a turnout east of falcon field to gather my thoughts. After 1 min, I picked up a canal that headed towards scottsdale and we turned direct to it. I contacted scottsdale tower and we were cleared to pass directly over the airport northbound. The human factors I have idented include a lack of experience in this aircraft, a lack of planning on my part, a lack of communication between myself and the other pilot, and the pressure of time. From this experience I have learned that it is important to take some time in planning and never let anything pressure me into hurrying.

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Original NASA ASRS Text

Title: C421 PLTS INCURRED IWA CLASS D AIRSPACE ON DEP IN THE PHX AREA.

Narrative: BEFORE DEP FROM THE CHANDLER ARPT, I DECIDED WE SHOULD USE THE SID PROC IN ORDER TO GIVE US TIME TO CLB ABOVE THE PHX CLASS B AIRSPACE. THE DEP PROC IS BASICALLY DIRECT S TO THE STANFIELD VOR. ALTHOUGH WE WERE HEADED N, I FELT THAT A COUPLE OF EXTRA MINS WAS WORTH AVOIDING THE CLASS B AIRSPACE. UPON ARR AT THE ACFT I DISCUSSED THIS PLAN WITH THE OTHER PLT WHO INFORMED ME THAT IT WOULD BE BETTER TO DEPART TO THE N UNDER THE CLASS B AIRSPACE. I BELIEVE HIS REASONING WAS THAT IT WOULD SAVE TIME AND FUEL -- 2 THINGS WE WOULD BE SHORT ON DURING THIS LONG TRIP WITH SOME STIFF HEADWINDS. BY THIS TIME I WAS ALREADY IN THE ACFT AND HAD TO ORGANIZE A RTE QUICKLY SO WE COULD GET MOVING. LOOKING AT THE CHARTS, A TURN DIRECT TO THE WILLIAMS/GATEWAY VOR WOULD KEEP US CLR OF THE CLASS B AIRSPACE. ONCE WE WERE NEAR THE VOR, A TURN TO THE N WOULD ALLOW US SAFE PASSAGE TO THE N AROUND FALCON FIELD AND SCOTTSDALE. UNFORTUNATELY, IN MY HASTE TO KEEP US CLR OF THE CLASS B AIRSPACE, I NEGLECTED THE FACT THAT WILLIAMS CLASS D AIRSPACE OVERLAPS CHANDLER AND EVEN THAT WILLIAMS WAS CLASS D. AFTER DEP FROM THE RIGHT SWBOUND RWY WE WERE CLRED FOR AN IMMEDIATE L TURN AND FREQ CHANGE. THE FACT THAT WE WERE GIVEN THE FREQ CHANGE SO SOON AFTER DEP CAUSED AN ALARM TO GO OFF IN MY HEAD. I TOLD THE OTHER PLT TO LEVEL OFF AT 3500 FT MSL AND I CHKED MY CHARTS. BY THE TIME I REALIZED WHAT HAD OCCURRED WE WERE INSIDE THE W CORNER OF WILLIAMS AIRSPACE. I GAVE THE PLT AN IMMEDIATE TURN TO THE N AND I SWITCHED OVER TO WILLIAMS TWR. I ESTIMATE WE INCURRED THE AIRSPACE BY ABOUT 1/4 - 1/2 NM BASED ON THE GPS GND TRACK DISPLAY. IT SEEMED AS THOUGH WE WERE IN THE AIRSPACE AS QUICKLY AS WE WERE OUT OF IT. ONCE I WAS SURE WE WERE CLR, I GAVE THE OTHER PLT A TURNOUT E OF FALCON FIELD TO GATHER MY THOUGHTS. AFTER 1 MIN, I PICKED UP A CANAL THAT HEADED TOWARDS SCOTTSDALE AND WE TURNED DIRECT TO IT. I CONTACTED SCOTTSDALE TWR AND WE WERE CLRED TO PASS DIRECTLY OVER THE ARPT NBOUND. THE HUMAN FACTORS I HAVE IDENTED INCLUDE A LACK OF EXPERIENCE IN THIS ACFT, A LACK OF PLANNING ON MY PART, A LACK OF COM BTWN MYSELF AND THE OTHER PLT, AND THE PRESSURE OF TIME. FROM THIS EXPERIENCE I HAVE LEARNED THAT IT IS IMPORTANT TO TAKE SOME TIME IN PLANNING AND NEVER LET ANYTHING PRESSURE ME INTO HURRYING.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.