Date: 201205
Local time of day: 1801-2400
Location: TEB.Airport, NJ
Flight conditions: VMC
Weather elements / visibility: 10
Light: Dusk
Aircraft: Learjet 45
Operator: Corporate
Operating under: Part 91
Flight plan: IFR
Mission: Passenger
Flight phase: Climb
Airspace: Class B EWR
ATC / advisory: TRACON N90
Aircraft component: FMS/FMC
Component problem: Improperly Operated
Reporter organization: Corporate
Reporter function: First Officer; Pilot Not Flying
Reporter qualification: Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor
Human factors: Situational Awareness; Communication Breakdown; Confusion; Human-Machine Interface
Second reporter function: Pilot Flying
Anomaly: Conflict Airborne Conflict; Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Detector: Person Air Traffic Control
When detected: In-flight
Result: Air Traffic Control Issued Advisory / Alert; Flight Crew Returned To Clearance
Contributing factors: Aircraft; Airspace Structure; Chart Or Publication; Human Factors
Primary problem: Human Factors

Narrative: I was acting as the pilot not flying on a Part 91 flight in our corporate jet.We departed TEB on the RUUDY 4 RNAV Departure. The departure was properly set in our dual FMS system. Both myself and the pilot flying verified the information was correct prior to takeoff. The SID requires a 240 degree heading to join a 260 degree course to the WENTZ intersection and level off at an altitude of 1;500 FT. Shortly after climb out; we had joined the 260 degree course and were then handed off to the New York Departure Controller.I completed the after takeoff checklist and noticed we were on course to TASCA intersection as indicated on my MFD at which time I selected 2;000 FT on the altitude pre select. I verified the pilots information was indicating that TASCA as our next fix. I then contacted New York Departure and reported climbing through 1;600 FT for 2;000 FT. The Controller advised that we needed to be at 1;500 FT as per the departure procedure. I then advised we were correcting and selected the altitude preselect to 1;500 FT and the pilot flying immediately disengaged the auto pilot and within seconds we descended from 1;800 FT back to 1;500 FT. I then selected 'direct to' WENTZ Intersection on both FMS systems and realized we were still 1.6 miles from the WENTZ intersection. We crossed WENTZ at 1;500 FT and then selected and climbed to 2;000 FT and crossed TASCA. The Controller mentioned traffic was off to our left which we had no visual contact with. I did verify the traffic on TCAS but there was no conflict and no evasive maneuvering was required.


Second narrative: I was the acting pilot flying.I saw the next fix on my MFD as TASCA and (with the autopilot now engaged) reset the altitude select from 1;500 FT to 2;000 FT; the required altitude at TASCA.I then hit the direct to button on the FMS and realized we were still 1.5 miles BEFORE WENTZ.


Synopsis: A Learjet 45 flight crew flying the RUUDY RNAV SID from TEB climbed above the mandatory 1;500 FT MSL restriction prior to passing WENTZ. The pilot flying had noted TASCA as their 'next' fix and unilaterally selected its 2;000 FT MSL crossing restriction in the altitude select window. When alerted by ATC the PF realized they were still 1.6 NM from WENTZ which was still the active waypoint. Worth noting in the individual narratives is the conflict as to which pilot performed which actions.