Narrative:

We were on the arrival into phoenix on the suns 4 arrival. I, the captain, read back the clearance to cross suns at 10000 ft, but didn't doublechk that the first officer heard it (he didn't). I should have read it aloud and had the first officer repeat, as is normal procedure. We crossed suns at 14000 ft.

Google
 

Original NASA ASRS Text

Title: XING ALT MISSED DURING DSCNT INTO PHX BY PF WHEN COCKPIT COORD PROC WAS NOT FOLLOWED.

Narrative: WE WERE ON THE ARR INTO PHOENIX ON THE SUNS 4 ARR. I, THE CAPT, READ BACK THE CLRNC TO CROSS SUNS AT 10000 FT, BUT DIDN'T DOUBLECHK THAT THE FO HEARD IT (HE DIDN'T). I SHOULD HAVE READ IT ALOUD AND HAD THE FO REPEAT, AS IS NORMAL PROC. WE CROSSED SUNS AT 14000 FT.

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.