<< >> NASA ASRS Report 861197, October 2009

A DA50 captain hand flew the teb RUUDY2 SID and climbed to 1;700 ft after LNAV engaged. He changed the capture altitude to 2;000 ft while climbing through 500 ft.

Attributes
ACN	861197
Time
Date	200910
Local Time Of Day	1801-2400
Place
Locale Reference	TEB.Airport
State Reference	NJ
Environment
Light	Dusk
Aircraft 1
Make Model Name	Falcon 50
Operating Under FAR Part	Part 91
Flight Phase	Climb Takeoff
Flight Plan	IFR
Person 1
Function	Captain
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP) Flight Crew Commercial
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 9000 Flight Crew Type 5200
Events
Anomaly	Deviation - Altitude Overshoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy

Narrative:

On departure from runway 24 I had the flight director set to LNAV and pitch 15 degrees. After takeoff the LNAV was captured and at 500 ft AGL I went to VNAV. I had the asel set to 1500 ft initially and changed it to 2000 ft. I'm not sure if this caused the VNAV to disengage but the net result was that I inadvertently climbed to 1700 ft MSL between wentz and tasca. When we changed over to departure he gave me a 240 degree heading and climb to 10;000 ft. He did not mention the altitude deviation. In hindsight I was hand-flying at the time and should have engaged the autopilot and left the asel at 1500 ft to avoid this type of error in the future.

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Original NASA ASRS Text

Title: A DA50 Captain hand flew the TEB RUUDY2 SID and climbed to 1;700 FT after LNAV engaged. He changed the capture altitude to 2;000 FT while climbing through 500 FT.

Narrative: On departure from Runway 24 I had the flight director set to LNAV and pitch 15 degrees. After takeoff the LNAV was captured and at 500 FT AGL I went to VNAV. I had the ASEL set to 1500 FT initially and changed it to 2000 FT. I'm not sure if this caused the VNAV to disengage but the net result was that I inadvertently climbed to 1700 FT MSL between WENTZ and TASCA. When we changed over to departure he gave me a 240 degree heading and climb to 10;000 FT. He did not mention the altitude deviation. In hindsight I was hand-flying at the time and should have engaged the autopilot and left the ASEL at 1500 FT to avoid this type of error in the future.

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.