Date: 201310
Local time of day: 1201-1800
Location: EWR.Airport, NJ
Flight conditions: VMC
Aircraft: B757 Undifferentiated or Other Model
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Final Approach
Airspace: Class B EWR
ATC / advisory: TRACON N90; Tower EWR
Reporter organization: Air Carrier
Reporter function: Captain; Pilot Flying
Reporter qualification: Flight Crew Air Transport Pilot (ATP)
Human factors: Human-Machine Interface; Situational Awareness
Anomaly: ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence
Detector: Person Flight Crew
When detected: In-flight
Result: Flight Crew Became Reoriented; Flight Crew Executed Go Around / Missed Approach
Contributing factors: Procedure; Human Factors
Primary problem: Human Factors

Narrative: ATIS advertising ILS 4R. Briefed ILS 4R prior to descent. Advised by Approach 5 minutes after first contact that they are 'turning the airport around.' We were given a vector and slowed to 210 knots. Briefed ILS 22L. Later advised to expect 'Stadium Visual 29.' After determining that we would have enough time to set up and brief we accepted this plan. Set up the RNAV V 29 in the FMS (RNAV V 29 is same lateral course as Stadium Visual). Had plenty of time to brief using QRH as a final check and briefing guide since turning around the airport was taking a long time. ATC then turned us back towards the airport and assigned 250 knots.  Handed off to new Controller. Told First Officer to ask for slower since we were getting close to TEB. Controller gave us a descent to 3;000 I believe and maintain 180 to BUZZD cleared for the ILS 22L circle 29.  We told the Controller we were expecting Stadium Visual. Controller then gave us further descent and a vector towards the airport and told us to report the field. He kept asking; 'Do you have it?' Visibility at our altitude was restricted due to sun and haze.  When we kept saying no he said intercept the localilizer; cleared for the ILS 22L circle 29.  The IRO had since tuned the ILS frequency and for a moment we considered doing this.  I did not feel prepared for the circle and decided to go-around. In the moment that we considered attempting this last clearance I put out the speedbrakes and called for the gear down; landing checklist; because if this was going to work we still had speed to lose.  It didn't take long to see it was not a good place to be so I called for the go-around and made the callouts. The autopilot disengaged when I pushed GA. I did not realize during the initial part of the go-around that I had not stowed the speedbrakes. The aircraft climbed towards the missed altitude but when it came to leveling off and cleaning up since I was hand flying I felt it was not accelerating as normal. I was focused; probably too focused; on attitude and airspeed.  IRO noticed speedbrakes and called them out. Stowed them and cleaned up. Got vectors for an ILS 22L straight in. All went well after we were cleaned up after the go-around. No ATC clearances were disobeyed or busted and no FAR's were violated.




Synopsis: B757 Captain reports going around after a last minute change to the approach clearance; but does not retract the spoilers until level off when noticed by the IRO.