Corporate captain reported terrain warning activation on coupled departure due to autopilot malfunct...

Attributes
ACN	1605533
Time
Date	201812
Local Time Of Day	1201-1800
Place
Locale Reference	VNY.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Transport
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	SID Canoga 2
Flight Plan	IFR
Component
Aircraft Component	Autoflight System
Person 1
Function	Pilot Flying Captain Single Pilot
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Commercial
Experience	Flight Crew Last 90 Days 20 Flight Crew Total 2300 Flight Crew Type 1000
Events
Anomaly	Aircraft Equipment Problem Less Severe Inflight Event / Encounter CFTT / CFIT

Narrative:

Departing van nuys runway 16R on the canoga 2 departure. Airplane was on VNAV and autopilot to fly the departure. After reaching the vny 2.2 DME at 1700 feet AGL; airplane turned to heading of 213 degrees and airplane did not continue climb to assigned altitude of 4000 feet. Terrain warning system activated. Pilot took evasive action and turned to the right to avoid terrain.

Original NASA ASRS Text

Title: Corporate Captain reported terrain warning activation on coupled departure due to autopilot malfunction.

Narrative: Departing Van Nuys Runway 16R on the Canoga 2 departure. Airplane was on VNAV and autopilot to fly the departure. After reaching the VNY 2.2 DME at 1700 feet AGL; airplane turned to heading of 213 degrees and airplane did not continue climb to assigned altitude of 4000 feet. Terrain warning system activated. Pilot took evasive action and turned to the right to avoid terrain.

Data retrieved from NASA's ASRS site 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.

Corporate captain reported terrain warning activation on coupled departure due to autopilot malfunction.