Narrative:

The teb 2 departure was received by the crew prior to takeoff. Clearance delivery did not issue any changes to the procedure and we received takeoff clearance from the tower. After departure we turned right to a heading of 040 degrees and climbed to an altitude of 2000'. Out of 1500' we turned direct to the patterson NDB and made contact with ny departure. Approaching the beacon and climbing to 2000' we received a clearance to maintain 2000' turn to a heading of 270 degrees and issued VFR traffic at 2500'. The PNF acknowledged the clearance and rest the altitude preselect to 2000' (which was set to 3000' as to start the climb at the beacon). The PF interpreted the climb clearance as to climb and maintain 3000' and turn to a heading of 270 degrees. Altitude deviation was called out of 2000' and the climb was stopped at 2400'. We descended immediately to 2000'. The controller responded noting our altitude and issued traffic. Prevent recurrence: standard INS departure procedures provide traffic sep, noise abatement and obstruction clearance to the en route environment. Normally they are complex to the extent of reviewing them prior to takeoff. Any changes can lead to confusion during the initial phase of flight. Setting the altitude select and issuing a hard altitude to 2000' from teb tower would probably have prevented the problem.

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Original NASA ASRS Text

Title: CORP ACFT DEPARTING ON SID RECEIVED AMENDED CLRNC. PF MISINTERPRETED CLRNC. ALT DEVIATION.

Narrative: THE TEB 2 DEP WAS RECEIVED BY THE CREW PRIOR TO TKOF. CLRNC DELIVERY DID NOT ISSUE ANY CHANGES TO THE PROC AND WE RECEIVED TKOF CLRNC FROM THE TWR. AFTER DEP WE TURNED RIGHT TO A HDG OF 040 DEGS AND CLBED TO AN ALT OF 2000'. OUT OF 1500' WE TURNED DIRECT TO THE PATTERSON NDB AND MADE CONTACT WITH NY DEP. APCHING THE BEACON AND CLBING TO 2000' WE RECEIVED A CLRNC TO MAINTAIN 2000' TURN TO A HDG OF 270 DEGS AND ISSUED VFR TFC AT 2500'. THE PNF ACKNOWLEDGED THE CLRNC AND REST THE ALT PRESELECT TO 2000' (WHICH WAS SET TO 3000' AS TO START THE CLB AT THE BEACON). THE PF INTERPRETED THE CLB CLRNC AS TO CLB AND MAINTAIN 3000' AND TURN TO A HDG OF 270 DEGS. ALT DEVIATION WAS CALLED OUT OF 2000' AND THE CLB WAS STOPPED AT 2400'. WE DSNDED IMMEDIATELY TO 2000'. THE CTLR RESPONDED NOTING OUR ALT AND ISSUED TFC. PREVENT RECURRENCE: STANDARD INS DEP PROCS PROVIDE TFC SEP, NOISE ABATEMENT AND OBSTRUCTION CLRNC TO THE ENRTE ENVIRONMENT. NORMALLY THEY ARE COMPLEX TO THE EXTENT OF REVIEWING THEM PRIOR TO TKOF. ANY CHANGES CAN LEAD TO CONFUSION DURING THE INITIAL PHASE OF FLT. SETTING THE ALT SELECT AND ISSUING A HARD ALT TO 2000' FROM TEB TWR WOULD PROBABLY HAVE PREVENTED THE PROB.

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.