Cl-65 flight crew reported loss of control for 2-3 seconds following a wake turbulence encounter dep...

Attributes
ACN	1603701
Time
Date	201812
Local Time Of Day	1801-2400
Place
Locale Reference	ATL.Airport
State Reference	GA
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	Regional Jet CL65 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Route In Use	SID POUNC
Flight Plan	IFR
Aircraft 2
Make Model Name	A321
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Events
Anomaly	Deviation - Procedural Clearance Deviation - Speed All Types Deviation - Track / Heading All Types Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Wake Vortex Encounter

Narrative:

Aircraft departed [runway] 8R from atl. Prior to our departure a B767 departed followed by an A321. At approximately 1000 ft AGL aircraft encountered heavy wake turbulence. Aircraft rolled approximately 45 degrees left and right followed by nose pitch up and down. Autopilot disconnected followed by master warning and stall warning. Airspeed was approximately 230 knots and dropped rapidly to 180 kts. Crew leveled wings pitched down approximately 3 degrees and prevented possible stall. Aircraft was unstable for about 1-2 seconds and made full recovery. Right engine had an itt exceedance for less than 15 seconds. Crew immediately notified ATC of wake turbulence and immediately let ATC know we were correcting flight track to continue on assigned SID. Passengers given a quick explanation of event by captain and checked with flight attendant (flight attendant) to ensure everyone was ok. Flight attendant checked with passengers and verified no injuries. Company notified of incident by ACARS and continued to destination with no further events. Constantly be aware that wake turbulence could occur at any time or altitude. Crews must have constant situation awareness especially at peak departure times in high density airports.

Original NASA ASRS Text

Title: CL-65 flight crew reported loss of control for 2-3 seconds following a wake turbulence encounter departing ATL 4 miles in trail of an A321.

Narrative: Aircraft departed [RWY] 8R from ATL. Prior to our departure a B767 departed followed by an A321. At approximately 1000 FT AGL aircraft encountered heavy wake turbulence. Aircraft rolled approximately 45 degrees left and right followed by nose pitch up and down. Autopilot disconnected followed by master warning and stall warning. Airspeed was approximately 230 knots and dropped rapidly to 180 kts. Crew leveled wings pitched down approximately 3 degrees and prevented possible stall. Aircraft was unstable for about 1-2 seconds and made full recovery. Right engine had an ITT exceedance for less than 15 seconds. Crew immediately notified ATC of wake turbulence and immediately let ATC know we were correcting flight track to continue on assigned SID. Passengers given a quick explanation of event by Captain and checked with Flight Attendant (FA) to ensure everyone was ok. FA checked with passengers and verified no injuries. Company notified of incident by ACARS and continued to destination with no further events. Constantly be aware that wake turbulence could occur at any time or altitude. Crews must have constant situation awareness especially at peak departure times in high density airports.

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.

Cl-65 flight crew reported loss of control for 2-3 seconds following a wake turbulence encounter departing atl 4 miles in trail of an A321.