<< >> NASA ASRS Report 868961, January 2010

A CL604 captain reported incorrectly selecting vertical speed instead of VNAV during the TEB6 departure and then overshooting the level off altitude by 300-400 ft because the autopilot did not capture 1;500 ft as planned.

Attributes
ACN	868961
Time
Date	201001
Local Time Of Day	0601-1200
Place
Locale Reference	TEB.Airport
State Reference	NJ
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Challenger CL604
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	SID TEB6
Flight Plan	IFR
Component
Aircraft Component	Autopilot
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 70 Flight Crew Total 5700 Flight Crew Type 650
Events
Anomaly	Deviation - Altitude Overshoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence
Miss Distance	Vertical 400

Narrative:

After takeoff we preceded to fly the runway 24 TEB6 departure. The SID was briefed that we would select navigation/VNAV after takeoff to comply with altitude restrictions. After gear retraction navigation was selected and vertical speed was inadvertently selected. Altitude selected on altitude preselect was 1;500. Due to high winds which caused a very bumpy ride and vs being selected instead of VNAV we missed the level off height of 1;500 by 300 to 400 ft. The SID required us to level off at 1;500 on a heading of 240. Then turn right to 280 heading and maintain 1;500 ft until crossing 4.5 DME then climb to 2;000. We recognized the error and started a decent to 1;500 at which point ATC questioned us and then told us to climb to 2;000.

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Original NASA ASRS Text

Title: A CL604 Captain reported incorrectly selecting vertical speed instead of VNAV during the TEB6 Departure and then overshooting the level off altitude by 300-400 FT because the autopilot did not capture 1;500 FT as planned.

Narrative: After takeoff we preceded to fly the Runway 24 TEB6 departure. The SID was briefed that we would select NAV/VNAV after takeoff to comply with altitude restrictions. After gear retraction NAV was selected and vertical speed was inadvertently selected. Altitude selected on altitude preselect was 1;500. Due to high winds which caused a very bumpy ride and VS being selected instead of VNAV we missed the level off height of 1;500 by 300 to 400 FT. The SID required us to level off at 1;500 on a heading of 240. Then turn right to 280 heading and maintain 1;500 FT until crossing 4.5 DME then climb to 2;000. We recognized the error and started a decent to 1;500 at which point ATC questioned us and then told us to climb to 2;000.

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.