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Place
Locale Reference.Airport : ATL.Airport
State Reference : GA
Altitude.MSL.Single Value : 10000
Environment
Flight Conditions : VMC
Weather Elements / Visibility : Turbulence
Light : Daylight
Aircraft
Reference : X
ATC / Advisory.TRACON : A80.TRACON
Aircraft Operator : Air Carrier
Make Model Name : Regional Jet 200 ER/LR (CRJ200)
Crew Size.Number Of Crew : 2
Operating Under FAR Part : Part 121
Flight Plan : IFR
Mission : Passenger
Nav In Use : FMS Or FMC
Flight Phase : Descent
Route In Use.STAR : CANUK
Airspace.Class B : ATL.B
Person
Reference : 1
Location Of Person.Aircraft : X
Reporter Organization : Air Carrier
Function.Flight Crew : Captain
Function.Flight Crew : Pilot Flying
Qualification.Flight Crew : Air Transport Pilot (ATP)
ASRS Report Number.Accession Number : 808548
Events
Anomaly.Inflight Event / Encounter : Wake Vortex Encounter
Detector.Person : Flight Crew
Result.General : Physical Injury / Incapacitation
Assessments
Contributing Factors / Situations : Environment - Non Weather Related
Primary Problem : Environment - Non Weather Related
Narrative: 1
AIRCRAFT ENCOUNTERED WAKE TURBULENCE JUST INSIDE OF HUSKY ON THE
CANUK 7 ARRIVAL. AIRCRAFT HAD JUST DESCENDED BELOW 10000 FT AND THE
DESCENT AND APPROACH CHECK BELOW THE LINE WAS ACCOMPLISHED. THE
AIRCRAFT ROLLED RAPIDLY 20 DEGREES LEFT THEN 20 DEGREES RIGHT. THE FO
(PF) DISCONNECTED THE AUTOPILOT. FO MAINTAINED ALTITUDE AND OFFSET
COURSE TO THE RIGHT TO AVOID FURTHER ENCOUNTER. COINCIDENTLY ATC
ISSUED A HEADING OF 360 DEGS AND DESCENT TO 8000 FT. THE REMAINDER OF
THE FLIGHT WAS WITHOUT INCIDENT. I CALLED THE FLT ATTENDANT TO ASSESS
THE CABIN SITUATION. ALL PASSENGERS STRAPPED IN. FLT ATTENDANT WAS
COLLECTING TRASH AT THE BACK OF THE AIRCRAFT AT THE TIME OF THE
ENCOUNTER AND HIT HER HEAD AGAINST THE OVERHEAD COMPARTMENT BUT
WAS UNINJURED. AN UNEVENTFUL LANDING WAS PERFORMED IN ATL. THIS IS A
PRIME EXAMPLE OF ACCEPTED RISK. I HAVEN'T ENCOUNTERED WAKE
TURBULENCE LIKE THIS FOR YEARS BUT IF YOU FLY INTO ATL ENOUGH AND THIS
KIND OF THING HAPPENS. IT IS GOOD THAT WHEN WE TURNED ON THE SEAT
BELT SIGN THE PASSENGERS RESPECTED IT, AND WERE ALL STRAPPED IN.
THOUGH WE CAN'T AVOID ENCOUNTERS LIKE THIS WE NEED BETTER TRAINING
OF CREWS ABOUT THE RISKS FACTORS ILLUSTRATED HERE. THIS WAS A
TEXTBOOK WAKE TURBULENCE ENCOUNTER. DURING THE DEBRIEF THE FLT
ATTENDANT STATED THAT FIRST SHE HIT HER HEAD AGAINST ONE OVERHEAD
COMPARTMENT THEN SHE HIT HER HEAD AGAINST THE OTHER COMPARTMENT.
THIS IS NO SURPRISE BECAUSE FIRST THE AIRCRAFT ROLLED RAPIDLY ONE
DIRECTION THEN IT ROLLED RAPIDLY IN THE OTHER DIRECTION. WHAT I SAID TO
HER AND WHAT I WOULD LIKE FLT ATTENDANT TRAINING TO EMPHASIS IS THAT
WAKE TURBULENCE ENCOUNTERS OFTEN OCCUR IN THAT WAY AND THEY SHOULD
EXPECT THE AIRCRAFT TO ROLL ONE WAY THEN PROBABLY BACK THE OTHER WAY.
THE OTHER IMPORTANT THING IS THE FACT THAT MOST ENCOUNTERS OF THIS
TYPE OCCUR BELOW 18000 FT OPERATING INTO LARGE ARPTS SUCH AS ATL, CVG,
CLT, JFK ETC (ANYWHERE THERE ARE 'HEAVY' AIRCRAFT). WHAT THAT MEANS IS
THAT THE 10000 FT BELLS INTO A HUB ARE PROBABLY THE RISKIEST PART OF A
FLT ATTENDANT'S JOB. WE ALSO MIGHT CHANGE OUR PROCEDURES REGARDING
THE SEATBELT SIGN. MY PERSONAL RULE IS THAT I LEAVE IT ON BELOW 18000
FT WHEN DEPARTING A HUB. THIS IS MORE PRUDENT THAN TURNING IT OFF AT
10000 FT SINCE THERE ARE SO MANY HEAVIES AT HUBS AND THAT IS WHERE
THE WAKE RISK IS THE GREATEST. IF WE ALL DID THIS THEN THE FLT
ATTENDANTS WOULD KNOW WHEN THE RISK WAS LOWER. SOME OF THEM MIGHT
NOT GET THE CART OUT UNTIL THEN AND THAT SHOULD BE THEIR CHOICE. THE
FACT IS YOU NORMALLY GET A WAKE TURBULENCE ENCOUNTER LIKE THIS EVERY
SEVERAL YEARS AND IT IS NEARLY ALWAYS WHILE OPERATING INTO A HUB.
Synopsis
A CRJ-200 ENCOUNTERS WAKE TURBULENCE DURING APPROACH TO ATL.
ACN: 808477 (49 of 50)
Time / Day
Date : 200810
Local Time Of Day : 0601-1200
Place
Locale Reference.ATC Facility : ABQ.ARTCC
State Reference : AZ
Altitude.MSL.Single Value : 23000
Environment
Flight Conditions : VMC
Light : Daylight
Aircraft : 1
Reference : X
ATC / Advisory.Center : ZAB.ARTCC
Aircraft Operator : Air Carrier
Make Model Name : B737-300
Crew Size.Number Of Crew : 2
Operating Under FAR Part : Part 121
Flight Plan : IFR
Mission : Passenger
Nav In Use : FMS Or FMC
Flight Phase : Climb
Airspace.Class A : ZAB.A
Aircraft : 2
Reference : Y
ATC / Advisory.Center : ABQ.ARTCC
Make Model Name : B757 Undifferentiated or Other Model
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