Narrative:

During approach to runway 4R on final outside of the OM; dooin; we were descending on the G/south thru about 2300 feet MSL and 5 miles behind a heavy when I called for gear down; managed speed; and flaps3; when ATC interrupted and told us to cancel approach clearance; maintain 2000 feet and present heading for a go around (we were apparently a hair less than 5 miles behind the heavy). As I was transitioning from the approach to comply with instructions; ATC changed our instructions again to fly the published missed approach and climb maintain 2500 feet. At this point I was busy turning off the autopilot and hand flying the missed while climbing to 2500 feet from about 2000 feet and calling for flaps 1 and flaps up as we were rapidly accelerating now due to the autothrust still engaged. During the confusion; my first officer said he believes we had about a 10knot flap overspeed. We were cleared for another ILS 4R approach; and landed safely in ewr. I decided to write-up the 10 knot flap overspeed to be safe based on my first officer's observation; and also notified mx after parking at the gate. Next time something like this happens; when a normal go-around is not possible; I learned that it is much easier to turn off autothrust as well as autopilot to manage this situation.

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Original NASA ASRS Text

Title: A319 Captain reports possible flap overspeed during go around issued by ATC which does not require much climb.

Narrative: During approach to RWY 4R on final outside of the OM; DOOIN; we were descending on the G/S thru about 2300 feet MSL and 5 miles behind a heavy when I called for gear down; managed speed; and flaps3; when ATC interrupted and told us to cancel approach clearance; maintain 2000 feet and present heading for a go around (we were apparently a hair less than 5 miles behind the heavy). As I was transitioning from the approach to comply with instructions; ATC changed our instructions again to fly the published missed approach and climb maintain 2500 feet. At this point I was busy turning off the autopilot and hand flying the missed while climbing to 2500 feet from about 2000 feet and calling for flaps 1 and flaps up as we were rapidly accelerating now due to the autothrust still engaged. During the confusion; my F/O said he believes we had about a 10knot flap overspeed. We were cleared for another ILS 4R approach; and landed safely in EWR. I decided to write-up the 10 knot flap overspeed to be safe based on my F/O's observation; and also notified MX after parking at the gate. Next time something like this happens; when a normal go-around is not possible; I learned that it is much easier to turn off autothrust as well as autopilot to manage this situation.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.