Narrative:

When departing runway 24 at teb; we were cleared for the ruudy 4 departure. The departure was a mandatory altitude of 1;500 ft MSL at wentz. Before reaching wentz; there is an unnamed dogleg intersection. When passing the dogleg; the aircraft began a programmed turn. We confused the dogleg intersection for wentz and began a climb to 2;000 ft MSL (which is the altitude at tasca). We were still about a mile and a half from wentz. The flying pilot realized the error at the same time ATC noticed that the climb began early. ATC then cleared us to 6;000 ft. Better monitoring of the FMS and multifunction display would help prevent a problem like this one. Also; 'naming' the dogleg intersection would help prevent confusion.

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Original NASA ASRS Text

Title: A CE560XL departed on the TEB RUUDY 4. At the dogleg turn before WENTZ; the crew mentally connected the turn and climb so continued toward 2;000 FT early. ATC then cleared the flight to 6;000 FT.

Narrative: When departing Runway 24 at TEB; we were cleared for the RUUDY 4 Departure. The Departure was a mandatory altitude of 1;500 FT MSL at WENTZ. Before reaching WENTZ; there is an unnamed dogleg intersection. When passing the dogleg; the aircraft began a programmed turn. We confused the dogleg intersection for WENTZ and began a climb to 2;000 FT MSL (which is the altitude at TASCA). We were still about a mile and a half from WENTZ. The flying pilot realized the error at the same time ATC noticed that the climb began early. ATC then cleared us to 6;000 FT. Better monitoring of the FMS and multifunction display would help prevent a problem like this one. Also; 'naming' the dogleg intersection would help prevent confusion.

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.