An HS125 departing teb exceeded the initial 1500 ft leveloff altitude before descending to 1500 ft.

Attributes
ACN	681756
Time
Date	200512
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : teb.airport
State Reference	NJ
Altitude	msl bound lower : 1500 msl bound upper : 1700
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	general aviation : corporate
Make Model Name	HS 125 Series
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	climbout : takeoff climbout : initial
Route In Use	departure sid : teb
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 20000
ASRS Report	681756
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	altitude deviation : overshoot non adherence : far non adherence : clearance non adherence : published procedure
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued alert flight crew : returned to assigned altitude
Supplementary
Problem Areas	Aircraft Airspace Structure Chart Or Publication Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Before takeoff; the PNF and I went over the departure. He said he put the 4.5 DME point on the FMS. The departure is 1500 ft right turn 280 degrees 4.5 DME climb 2000 ft. Normal takeoff. At 1500 ft and in the turn the PNF said next 2000 ft. I thought he meant now to 2000 ft because he set the 4.5 in the FMS. I started to climb and the PNF said no not yet and I pushed over not to climb. I had reached about 1600 ft or 1700 ft and was descending when departure said maintain 1500 ft. There was no conflict and the aircraft behind us also was told to maintain 1500 ft. He also had no conflict. Next time I'll see how he put the mileage in so I'll know exactly and know what to look for also on the FMS.

Original NASA ASRS Text

Title: AN HS125 DEPARTING TEB EXCEEDED THE INITIAL 1500 FT LEVELOFF ALT BEFORE DSNDING TO 1500 FT.

Narrative: BEFORE TKOF; THE PNF AND I WENT OVER THE DEP. HE SAID HE PUT THE 4.5 DME POINT ON THE FMS. THE DEP IS 1500 FT R TURN 280 DEGS 4.5 DME CLB 2000 FT. NORMAL TKOF. AT 1500 FT AND IN THE TURN THE PNF SAID NEXT 2000 FT. I THOUGHT HE MEANT NOW TO 2000 FT BECAUSE HE SET THE 4.5 IN THE FMS. I STARTED TO CLB AND THE PNF SAID NO NOT YET AND I PUSHED OVER NOT TO CLB. I HAD REACHED ABOUT 1600 FT OR 1700 FT AND WAS DSNDING WHEN DEP SAID MAINTAIN 1500 FT. THERE WAS NO CONFLICT AND THE ACFT BEHIND US ALSO WAS TOLD TO MAINTAIN 1500 FT. HE ALSO HAD NO CONFLICT. NEXT TIME I'LL SEE HOW HE PUT THE MILEAGE IN SO I'LL KNOW EXACTLY AND KNOW WHAT TO LOOK FOR ALSO ON THE FMS.

Data retrieved from NASA's ASRS site as of January 2009 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.