EMB ERJ 170/175 ER/LR
Flight Crew Air Transport Pilot (ATP)
Flight Crew Total 3600; Flight Crew Type 1500
Situational Awareness
Deviation - Speed All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Unstabilized Approach; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Became Reoriented; Flight Crew Executed Go Around / Missed Approach
Environment - Non Weather Related; Human Factors; Procedure
A flap overspeed occurred during a visual approach to runway 26 in PHX. We were vectored tight to the airport due to severe thunderstorms east of the field. We were also given a vector tight behind a B747; less than 5 miles in trail. I decided to hand fly the approach due to being high and tight to both the airport and B-747. While configuring we started to experience wake turbulence in addition to light turbulence from the weather. While handling the aircraft in the wake turbulence we were closing in on the FAF and I didn't want the flight director to level and not capture the glide slope; so I called for the missed approach altitude to be set. However I did not realize we were still in FLCH; instead of FPA. The auto throttles advanced and the speed rapidly rose. I immediately pitched the aircraft up and overrode the throttles to idle. I oversped the flaps 3 by 1 kt for about 1 second. I then called for a go-around which was executed without TOGA since we were basically at altitude and FLCH was already active. An uneventful approach to landing followed the go-around. On the ground Dispatch and Maintenance were notified; logbook entry made and an inspection was done; with no defects noted. The go around was not put in the Maintenance log because it was a non-TOGA go-around. We should have requested a delay vector to not be so tight on the B747. Also both the FO and I should have caught that we were in FLCH when I requested the missed approach altitude. Either of these would have prevented the flap limitation exceedance.
[Report narrative contained no additional information.]
EMB-175 flight crew reported executing a go-around on approach to PHX after encountering wake turbulence in trail of a B747.