HS125 departure from teb is advised by ATC that they initiated climb early.

Attributes
ACN	617207
Time
Date	200403
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : teb.airport
State Reference	NJ
Altitude	msl single value : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	common carrier : air taxi
Make Model Name	Harrier
Operating Under FAR Part	Part 135
Flight Phase	climbout : takeoff climbout : initial
Route In Use	departure sid : teb
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 21000 flight time type : 1000
ASRS Report	617207
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	controller : issued advisory controller : issued new clearance
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

On departure procedure requires 'maintain 1500 ft until 4.5 DME from teb climb to 2000 ft.' we did as above, ATC called and asked why we climbed 'early' before 4.5 DME. We showed that we waited until the 4.5 DME. Unsure who was off?

Original NASA ASRS Text

Title: HS125 DEP FROM TEB IS ADVISED BY ATC THAT THEY INITIATED CLB EARLY.

Narrative: ON DEP PROC REQUIRES 'MAINTAIN 1500 FT UNTIL 4.5 DME FROM TEB CLB TO 2000 FT.' WE DID AS ABOVE, ATC CALLED AND ASKED WHY WE CLBED 'EARLY' BEFORE 4.5 DME. WE SHOWED THAT WE WAITED UNTIL THE 4.5 DME. UNSURE WHO WAS OFF?

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.