B757-200
Situational Awareness
Inflight Event / Encounter CFTT / CFIT
Flight Crew Took Evasive Action
Human Factors
Captains leg; ATC cleared us to 2;500 for visual approach to runway 17.  ATC asked if we had field in site; Captain said yes and I agreed.  Told to switch to tower.  FAF altitude was placed in the window.  While tuning tower freq we got a 'terrain; terrain pull up'.  Captain disengaged the autopilot; raised the nose and advanced power.  The warning ceased immediately and the radio altimeter indicated clear of terrain.  Normal landing followed.
While on downwind approach to MHT on descent EGPWS gave Terrain Pull Up command. Pilot flying disconnected the autopilot at which time the EGPWS warning ceased. Normal approach was continued into MHT.
A B757 Flight crew experiences an EGPWS terrain warning at 2;300 feet during a night visual approach to Runway 17 at MHT. The crew was NNW of the field at the time and took evasive action.