Narrative:

After departure flying the ruudy four I believed that the crossing restriction was to cross wentz intersection at or above 1;500 ft. I leveled the aircraft off at 2;000 ft prior to crossing wentz. ATC notified me of the deviation and said that there was no issue caused by the deviation.

Google
 

Original NASA ASRS Text

Title: A confused BE40 pilot departed on the TEB RUUDY FOUR and did not level at 1;500 FT prior to WENTZ so ATC notified him of the error at 2;000 FT.

Narrative: After departure flying the RUUDY FOUR I believed that the crossing restriction was to cross WENTZ Intersection at or above 1;500 FT. I leveled the aircraft off at 2;000 FT prior to crossing WENTZ. ATC notified me of the deviation and said that there was no issue caused by the deviation.

Data retrieved from NASA's ASRS site as of July 2013 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.