Narrative:

Departed runway 8R at phx, cleared push 1 departure, cie transition. Shortly after crossing phx VOR (8 NM) began published turn to heading of 190 degrees. Should have begun turn at 4 NM east of VOR. Departure controller informed me of error. I corrected and thanked him for bringing it to our attention. No known traffic conflict.

Google
 

Original NASA ASRS Text

Title: FO OF A CESSNA CITATION C525 TURNED TOO EARLY DURING A SID DEP RESULTING IN ATC INTERVENTION TO REMIND THE FLC OF THE ACTUAL FIX FOR THE TURN. THE FO CORRECTED BACK AT ONCE WITH NO KNOWN CONFLICT.

Narrative: DEPARTED RWY 8R AT PHX, CLRED PUSH 1 DEP, CIE TRANSITION. SHORTLY AFTER XING PHX VOR (8 NM) BEGAN PUBLISHED TURN TO HDG OF 190 DEGS. SHOULD HAVE BEGUN TURN AT 4 NM E OF VOR. DEP CTLR INFORMED ME OF ERROR. I CORRECTED AND THANKED HIM FOR BRINGING IT TO OUR ATTN. NO KNOWN TFC CONFLICT.

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.