Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 96
Situational Awareness
Deviation - Altitude Excursion From Assigned Altitude; Deviation - Altitude Undershoot; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT
Flight Crew Executed Go Around / Missed Approach
We were on profile and over the river when we received an 'Obstacle; Obstacle; Pull Up' alert. We followed the procedure; and told ATC we were going around due to a GPS alert. They gave us vectors for another approach. We flew slightly above the profile approximately 300 FT higher on the second approach and landed without incident.I believe we were right where we were supposed to be; so I don't know [what preventative measures to suggest]. Possibly raise the altitude target to 1100 instead of 900 over the bridge.
A B737 descending on the RIVER VISUAL to Runway 19 at DCA responded to and EGPWS 'TOO LOW; Obstacle' warning when approaching the Key Bridge. They executed a go-around and returned for a successful second attempt.