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A cpr CL60 is allegedly turned off course by a wake turbulence encounter during initial climb out of anc, ak.
| Attributes | |
| ACN | 493520 |
| Time | |
| Date | 200011 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : anc.airport |
| State Reference | AK |
| Altitude | msl bound lower : 400 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : a11.tracon tower : anc.tower |
| Operator | general aviation : corporate |
| Make Model Name | Challenger CL600 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | climbout : initial climbout : vacating altitude |
| Route In Use | departure : on vectors departure sid : anc2 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : commercial pilot : instrument pilot : private |
| Experience | flight time last 90 days : 40 flight time total : 1425 flight time type : 125 |
| ASRS Report | 493520 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 80 flight time total : 16360 flight time type : 385 |
| ASRS Report | 493444 |
| Events | |
| Anomaly | inflight encounter : wake turbulence non adherence : published procedure non adherence : clearance other anomaly other spatial deviation |
| Independent Detector | other controllera other controllerb other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : regained aircraft control |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | ATC Human Performance Airspace Structure Environmental Factor Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were cleared for anc 2 departure (ANC2.anc) and we were taking off from runway 32 at the anc airport. The procedure calls for a left turn at 400 ft to a heading of 300 degrees. Instead, we made a series of right turns of approximately 20-30 degrees following an encounter with turbulence and spilled catering. The tower instructed us to turn left to a heading of 360 degrees and to contact departure. Contact was made with departure control and we were instructed to make another left turn. They also instructed us to review the SID because the procedure required a left, not a right, turn. We acknowledged. Supplemental information from acn 493444: we encountered wake turbulence which rolled the aircraft to the right. We momentarily recovered and then hit it again.
Original NASA ASRS Text
Title: A CPR CL60 IS ALLEGEDLY TURNED OFF COURSE BY A WAKE TURB ENCOUNTER DURING INITIAL CLBOUT OF ANC, AK.
Narrative: WE WERE CLRED FOR ANC 2 DEP (ANC2.ANC) AND WE WERE TAKING OFF FROM RWY 32 AT THE ANC ARPT. THE PROC CALLS FOR A L TURN AT 400 FT TO A HDG OF 300 DEGS. INSTEAD, WE MADE A SERIES OF R TURNS OF APPROX 20-30 DEGS FOLLOWING AN ENCOUNTER WITH TURB AND SPILLED CATERING. THE TWR INSTRUCTED US TO TURN L TO A HDG OF 360 DEGS AND TO CONTACT DEP. CONTACT WAS MADE WITH DEP CTL AND WE WERE INSTRUCTED TO MAKE ANOTHER L TURN. THEY ALSO INSTRUCTED US TO REVIEW THE SID BECAUSE THE PROC REQUIRED A L, NOT A R, TURN. WE ACKNOWLEDGED. SUPPLEMENTAL INFO FROM ACN 493444: WE ENCOUNTERED WAKE TURB WHICH ROLLED THE ACFT TO THE R. WE MOMENTARILY RECOVERED AND THEN HIT IT AGAIN.
Data retrieved from NASA's ASRS site as of July 2007 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.