CE560 captain reports loading and checking both FMS units then placing them in standby while the air...

Attributes
ACN	979449
Time
Date	201111
Local Time Of Day	1201-1800
Place
Locale Reference	TEB.Tower
State Reference	NJ
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	Citation Excel (C560XL)
Operating Under FAR Part	Part 135
Flight Phase	Initial Climb
Route In Use	SID RUUDY 3
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 13500 Flight Crew Type 4500
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types

Narrative:

Departing rwy 24 at teb on the ruudy 3 departure noticed FMS course line was about 15 degrees to the right of present heading. Initiated a right turn to follow the course line; but shortly realized that the initial heading was correct. The FMS generated course line was wrong. Both crew members checked both FMS units prior to departure. However; due to a mechanical problem; the airplane was shut down and the FMS units put in the standby mode. After powering the airplane back up the units were not rechecked. Somehow both units inserted a stray waypoint between the runway and the first departure fix. We missed it. I only noticed this after departure. When noticed; an immediate course correction to the left was made. The resultant flight path came out very close to the original SID and ATC did not mention any problems. Lesson learned: after putting the FMS to standby and powering back up; recheck the departure.

Original NASA ASRS Text

Title: CE560 Captain reports loading and checking both FMS units then placing them in standby while the aircraft is powered down for maintenance. During the RUUDY 3 departure a minor course deviation occurs due to an erroneous waypoint that has been created prior to the first waypoint.

Narrative: Departing Rwy 24 at TEB on the RUUDY 3 Departure noticed FMS course line was about 15 degrees to the right of present heading. Initiated a right turn to follow the course line; but shortly realized that the initial heading was correct. The FMS generated course line was wrong. Both crew members checked both FMS units prior to departure. However; due to a mechanical problem; the airplane was shut down and the FMS units put in the standby mode. After powering the airplane back up the units were not rechecked. Somehow both units inserted a stray waypoint between the runway and the first departure fix. We missed it. I only noticed this after departure. When noticed; an immediate course correction to the left was made. The resultant flight path came out very close to the original SID and ATC did not mention any problems. Lesson learned: after putting the FMS to standby and powering back up; recheck the departure.

Data retrieved from NASA's ASRS site as of April 2012 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.

CE560 captain reports loading and checking both FMS units then placing them in standby while the aircraft is powered down for maintenance. During the ruudy 3 departure a minor course deviation occurs due to an erroneous waypoint that has been created prior to the first waypoint.