Medium Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Communication Breakdown; Situational Awareness
ATC Issue All Types; Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT; Inflight Event / Encounter Weather / Turbulence; Inflight Event / Encounter Unstabilized Approach
Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented; Flight Crew Executed Go Around / Missed Approach
Airspace Structure; Human Factors; Weather
Cleared for ILS 16R approach into VNY. Noted 45 knot tailwind at 5;000 ft MSL. Noted again 35 knot tailwind at 3;500 ft MSL. Approach became unstable at 500 AGL due to windshear. Called for go-around. Local Controller issued a missed approach clearance. Maintain 2;000 ft for now. Right crosswind 270 degree turn to enter left base 34L. At 2;000 ft MSL; EGPWS (Enhanced Ground Proximity Warning System) issued a 'caution terrain.' Initiated a slow climb. EGPWS issued a terrain warning. Climbed to 2;980 ft MSL to provide additional terrain clearance. Landed without further event. The lesson I take away from this is as follows: I should have informed the Local Controller that it was necessary to climb above the initially assigned altitude to provide adequate terrain clearance.
Corporate jet Captain reported an unstabilized approach into VNY airport due to windshear resulting in a missed approach and Terrain Warning.