A falcon 50 departing teb on the teb departure failed to level off at the charted 1500 ft restr; climbing to 1750 ft; at least partly because of failure of the autoplt to capture the altitude.

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Attributes
ACN	713212
Time
Date	200610
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : teb.airport
State Reference	NJ
Altitude	msl bound lower : 1500 msl bound upper : 1750
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	general aviation : corporate
Make Model Name	Falcon 50
Operating Under FAR Part	Part 135
Navigation In Use	other
Flight Phase	climbout : initial
Route In Use	departure sid : teb5
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 15000 flight time type : 3000
ASRS Report	713212
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : published procedure non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Airspace Structure Chart Or Publication Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

On the teb 5 SID off of runway 24; the FMS was programmed to follow the departure route and altitudes. The autoplt was engaged. At 1500 ft; I noticed it did not capture that altitude so I disconnected the autoplt and returned to 1500 ft. We topped out at 1700 ft to 1750 ft. There was no conflict and we were immediately cleared to 6000 ft. I am unable to determine why the system did not capture but I will be watching very closely from now on.

Original NASA ASRS Text

Title: A FALCON 50 DEPARTING TEB ON THE TEB DEP FAILED TO LEVEL OFF AT THE CHARTED 1500 FT RESTR; CLBING TO 1750 FT; AT LEAST PARTLY BECAUSE OF FAILURE OF THE AUTOPLT TO CAPTURE THE ALT.

Narrative: ON THE TEB 5 SID OFF OF RWY 24; THE FMS WAS PROGRAMMED TO FOLLOW THE DEP RTE AND ALTS. THE AUTOPLT WAS ENGAGED. AT 1500 FT; I NOTICED IT DID NOT CAPTURE THAT ALT SO I DISCONNECTED THE AUTOPLT AND RETURNED TO 1500 FT. WE TOPPED OUT AT 1700 FT TO 1750 FT. THERE WAS NO CONFLICT AND WE WERE IMMEDIATELY CLRED TO 6000 FT. I AM UNABLE TO DETERMINE WHY THE SYS DID NOT CAPTURE BUT I WILL BE WATCHING VERY CLOSELY FROM NOW ON.

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.