A320 flight crew reported a flap overspeed shortly after takeoff when they encountered a rapidly inc...

Attributes
ACN	1409924
Time
Date	201612
Local Time Of Day	0601-1200
Place
Locale Reference	EWR.Airport
State Reference	NJ
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Aircraft 2
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 165 Flight Crew Type 4679
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Type 372
Events
Anomaly	Deviation - Speed All Types Inflight Event / Encounter Weather / Turbulence Inflight Event / Encounter Wake Vortex Encounter

Narrative:

On takeoff from runway 22R; reported ATIS 1/4 visibility; calm winds reported by tower. Previous departure B757. Normal takeoff roll and rotation. Pitch bars commanded extreme nose up. Wind increased to 20 kts by 100-150 ft; 50 kts by 300 ft; 82 kts by 500 ft. Pitch bars commanding extreme nose up; aircraft attitude was 20-25 degrees nose up and not yet at power reduction altitude (800 ft). Hit wake turbulence somewhere around 500 ft in turn and had a 2-3 kts momentary overspeed. Autothrottles on. Continued nose up rotation but hesitant to over-rotate as aircraft was extremely nose up with positive wind performance. Had second momentary exceedance in turn when encountered wake turbulence from previous aircraft leading to second exceedance (momentary overspeed). Just after power reduction; rapid trend arrow indicating aircraft entering negative effect of relative wind; vls increased to just under aircraft speed (5 kts below). Thrust applied to accelerate above green dot speed. Aircraft given 290 heading by ATC and turned west and departed in light to moderate turbulence conditions. Exceedance reported to [maintenance] at cruise. Consulted with [maintenance who stated] no issues. Proceeded to [destination] and landed uneventfully.

Original NASA ASRS Text

Title: A320 flight crew reported a flap overspeed shortly after takeoff when they encountered a rapidly increasing headwind and wake turbulence from the preceding B757.

Narrative: On takeoff from Runway 22R; reported ATIS 1/4 visibility; calm winds reported by tower. Previous departure B757. Normal takeoff roll and rotation. Pitch bars commanded extreme nose up. Wind increased to 20 kts by 100-150 ft; 50 kts by 300 ft; 82 kts by 500 ft. Pitch bars commanding extreme nose up; aircraft attitude was 20-25 degrees nose up and not yet at power reduction altitude (800 ft). Hit wake turbulence somewhere around 500 ft in turn and had a 2-3 kts momentary overspeed. Autothrottles on. Continued nose up rotation but hesitant to over-rotate as aircraft was extremely nose up with positive wind performance. Had second momentary exceedance in turn when encountered wake turbulence from previous aircraft leading to second exceedance (momentary overspeed). Just after power reduction; rapid trend arrow indicating aircraft entering negative effect of relative wind; VLS increased to just under aircraft speed (5 kts below). Thrust applied to accelerate above green dot speed. Aircraft given 290 heading by ATC and turned west and departed in light to moderate turbulence conditions. Exceedance reported to [Maintenance] at cruise. Consulted with [Maintenance who stated] no issues. Proceeded to [destination] and landed uneventfully.

Data retrieved from NASA's ASRS site 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.