Medium Transport; Low Wing; 2 Turbojet Eng
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Communication Breakdown
Inflight Event / Encounter CFTT / CFIT; Inflight Event / Encounter Weather / Turbulence
Flight Crew Became Reoriented; Flight Crew Took Evasive Action
Human Factors
ILS [Runway] 06 circle to land [Runway] 01 just after dark with gusty winds and windshear. Miscommunication in the cockpit dealing with 'programming' the airplane for the approach. Got distracted on the maneuver which got us close to the towers; then got a pull up prompt. Recovered and landed safely.[Cause was] Lack of cockpit communication.[Suggest] Training this approach with bad weather in simulator.
Clearance by Approach Control - Intercept the Runway 06 approach course and expect the Runway 06 ILS; circle Runway 01. Clearance by Tower - Cleared for visual approach Runway 06; at TORBY cleared to circle to land Runway 01. During the circle we received TAWS Aural Warning - ''Obstacle; Obstacle; Pull Up'. The pilot flying began a climb from 820 ft. MSL to approximately 1;300 ft. MSL. Message cleared and the approach was continued to a full stop landing. The aircraft was flown too close to obstructions during the circling to land approach. 2 contributing factors: Unfamiliarity with the procedure at TEB and reliance on autopilot.With the frequency that [our company] operates in and out of TEB; it may be advisable to add some type of briefing to the pilot [group]. This is a common procedure at TEB; but it doesn't occur frequently enough to build pilot confidence in the circle to land maneuver.
Fractional jet flight crew reported receiving a TAWS obstacle warning on a circling approach to TEB Runway 01.