Citation X (C750)
Flight Crew Air Transport Pilot (ATP)
Communication Breakdown
ATC Issue All Types; Deviation - Altitude Crossing Restriction Not Met; Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented
Human Factors
This event took place during a revenue flight from TEB during our initial climbout on the RUUDY 4 SID off runway 24. Once airborne; TEB Tower instructed us to contact New York Departure. After switching the pilot not flying made sure the frequency was clear before transmitting. At 700 FT AGL the pilot not flying made the initial call to New York Departure reporting 'NY Departure Citation 700 FT climbing to 1;500 FT on the RUUDY 4 departure.' While this transmission took place; the pilot flying was in the process of leveling at 1;500 per the SID. New York Departure then responded with; 'cleared direct ELVAE climb and maintain 6;000.' The pilot not flying then read back the clearance with call sign. New York Departure did not challenge the read back. The pilot not flying selected 6;000 in the altitude select window. As ELVAE was not in our flight plan the pilot monitoring then proceeded to manually insert the waypoint. At 2;500 FT ATC queried us as to what altitude we were going to. The pilot not flying responded 'We were cleared direct ELVAE and climb and maintain 6;000.' ATC then responded 'Oh that was not for you.' Then ATC instructed us to climb and maintain 10;000 FT and fly heading 270. At this point we realized a misunderstanding had occurred between us and ATC. The remainder of the flight was uneventful. Please be aware that we completed all preflight procedures per company SOP including briefing of the departure procedure.Any departure out of TEB puts a high workload on the crew. On previous and separate occasions we have received altitude clearances from ATC during climb out; which deviate from the published departure altitudes. Due to this; today's clearance did not appear out of the norm. We think the flight crew should always be allowed to complete the full departure as published in a dense area as this. This will allow the crew to adhere to what has been briefed and eliminate the potential for mistakes.
[Narrative 2 contained no additional information.]
CE750 flight crew reports apparently accepting a clearance for another flight departing TEB on the RUUDY 4 departure and starting a climb to 6;000 FT direct to ELVAE.