<< >> NASA ASRS Report 1494912, November 2017

B787 flight crew reported that ATC issued an incorrect heading resulting in the aircraft turning the wrong direction.

Attributes
ACN	1494912
Time
Date	201711
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Aircraft 1
Make Model Name	B787 Dreamliner Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 17085
Person 2
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 7073 Flight Crew Type 878
Events
Anomaly	ATC Issue All Types Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types

Narrative:

We were on downwind on vectors. We were expecting vectors to base. ATC issued heading of left turn 010 degrees. I slewed the bug over to the heading. First thought it was quite a big turn. Low ceilings made me think it might be a delay vector. The turn ended up being more than 180 degrees which results in the plane turn opposite the direction I moved the heading bug. Upon noticing the plane turn direction opposite what was commanded; I switched off the autopilot and corrected to a left turn. The controller corrected the heading to 110 degrees. Flight was maintained in level flight.

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Original NASA ASRS Text

Title: B787 flight crew reported that ATC issued an incorrect heading resulting in the aircraft turning the wrong direction.

Narrative: We were on downwind on vectors. We were expecting vectors to base. ATC issued heading of left turn 010 degrees. I slewed the bug over to the heading. First thought it was quite a big turn. Low ceilings made me think it might be a delay vector. The turn ended up being more than 180 degrees which results in the plane turn opposite the direction I moved the heading bug. Upon noticing the plane turn direction opposite what was commanded; I switched off the autopilot and corrected to a left turn. The controller corrected the heading to 110 degrees. Flight was maintained in level flight.

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.