A C340 pilot received an amended clearance on departure from teb.

Attributes
ACN	453990
Time
Date	199910
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : teb.airport
Altitude	msl single value : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	general aviation : personal
Make Model Name	Cessna 340/340A
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial
Route In Use	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 30 flight time total : 495 flight time type : 20
ASRS Report	453990
Person 2
Affiliation	other
Function	observation : passenger
Qualification	pilot : private
Events
Anomaly	non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

Crew briefed SID for one runway and another runway was assigned for takeoff. The PF was awaiting the PNF to call the right turn upon reaching 1500 ft per the SID. The PNF instead asked controller if he wanted us to turn. Controller gave us a turn different from published SID. PNF was not sure if we were expected to follow SID even though controller had cleared us to a certain altitude. No other unusual operation occurred. I do not believe any special handling occurred. However, the confusion over which SID we were on led to a delay in following the SID procedure.

Original NASA ASRS Text

Title: A C340 PLT RECEIVED AN AMENDED CLRNC ON DEP FROM TEB.

Narrative: CREW BRIEFED SID FOR ONE RWY AND ANOTHER RWY WAS ASSIGNED FOR TKOF. THE PF WAS AWAITING THE PNF TO CALL THE R TURN UPON REACHING 1500 FT PER THE SID. THE PNF INSTEAD ASKED CTLR IF HE WANTED US TO TURN. CTLR GAVE US A TURN DIFFERENT FROM PUBLISHED SID. PNF WAS NOT SURE IF WE WERE EXPECTED TO FOLLOW SID EVEN THOUGH CTLR HAD CLRED US TO A CERTAIN ALT. NO OTHER UNUSUAL OP OCCURRED. I DO NOT BELIEVE ANY SPECIAL HANDLING OCCURRED. HOWEVER, THE CONFUSION OVER WHICH SID WE WERE ON LED TO A DELAY IN FOLLOWING THE SID PROC.

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.