Narrative:

A normal takeoff was made in an medium large transport aircraft on runway 8, flying a picah departure. The departure required a turn past the VOR (srp) at 4 DME to a heading of 190 degrees. Then at 4 DME this turn was commenced. At the same time the departure controller assigned a heading of 200 degrees. Company procedure requires normally 15 degrees of bank unless required for abnormal circumstances. A few seconds after the controller issued the 200 degree heading, he asked that we tighten the turn. At this point I increased the bank to 20 degrees and started slowing through 230 KTS to a target of 210 KTS in order to decrease the turn radius. The controller then started quizzing us about airspeed and whether or not this was a normal turn. I explained that as far as I knew that this was all normal. He then said that the turn was taking the aircraft into williams aft airspace. I said that I had no way of knowing that and that if he would have communicated that to me I could have used more bank (up to 30 degrees). His voice indicated a measure of displeasure. If turn radius is a problem for medium large transport aircraft on this departure, then it should be noted on the departure chart or aircraft should be instructed by the controller to keep the turn inside a certain DME on the VOR. The picah departure, as depicted, has no such restrictions.

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Original NASA ASRS Text

Title: AN MLG CREW MAY HAVE FLOWN INTO A MIL ATA AFTER TKOF FROM PHX DUE TO NOT TURNING TIGHT ENOUGH.

Narrative: A NORMAL TKOF WAS MADE IN AN MLG ACFT ON RWY 8, FLYING A PICAH DEP. THE DEP REQUIRED A TURN PAST THE VOR (SRP) AT 4 DME TO A HDG OF 190 DEGS. THEN AT 4 DME THIS TURN WAS COMMENCED. AT THE SAME TIME THE DEP CTLR ASSIGNED A HDG OF 200 DEGS. COMPANY PROC REQUIRES NORMALLY 15 DEGS OF BANK UNLESS REQUIRED FOR ABNORMAL CIRCUMSTANCES. A FEW SECONDS AFTER THE CTLR ISSUED THE 200 DEG HDG, HE ASKED THAT WE TIGHTEN THE TURN. AT THIS POINT I INCREASED THE BANK TO 20 DEGS AND STARTED SLOWING THROUGH 230 KTS TO A TARGET OF 210 KTS IN ORDER TO DECREASE THE TURN RADIUS. THE CTLR THEN STARTED QUIZZING US ABOUT AIRSPD AND WHETHER OR NOT THIS WAS A NORMAL TURN. I EXPLAINED THAT AS FAR AS I KNEW THAT THIS WAS ALL NORMAL. HE THEN SAID THAT THE TURN WAS TAKING THE ACFT INTO WILLIAMS AFT AIRSPACE. I SAID THAT I HAD NO WAY OF KNOWING THAT AND THAT IF HE WOULD HAVE COMMUNICATED THAT TO ME I COULD HAVE USED MORE BANK (UP TO 30 DEGS). HIS VOICE INDICATED A MEASURE OF DISPLEASURE. IF TURN RADIUS IS A PROBLEM FOR MLG ACFT ON THIS DEP, THEN IT SHOULD BE NOTED ON THE DEP CHART OR ACFT SHOULD BE INSTRUCTED BY THE CTLR TO KEEP THE TURN INSIDE A CERTAIN DME ON THE VOR. THE PICAH DEP, AS DEPICTED, HAS NO SUCH RESTRICTIONS.

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.