B737 captain reported encountering wake turbulence on arrival into lax in trail of a B777. He recomm...

Attributes
ACN	1502484
Time
Date	201712
Local Time Of Day	1801-2400
Place
Locale Reference	LAX.Airport
State Reference	CA
Environment
Light	Night
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Route In Use	STAR IRNMN1
Flight Plan	IFR
Aircraft 2
Make Model Name	B777 Undifferentiated or Other Model
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Inflight Event / Encounter Wake Vortex Encounter

Narrative:

Flying the irnmn approach into lax. Was put behind a B777. Told ATC distance was insufficient as we started to feel effects of wake turbulence. Told them we were slowing to 190 from the assigned 210. Three weeks ago encountered severe wake turbulence from B747 that turned us to a 45 degree right bank that was completely uncontrollable for 5 seconds. Swore I would never allow that to happen again.lax is an anomaly in that the air is like a blender. Constantly disturbed. Along with that; ATC is putting us behind heavy and the distance is inadequate to avoid the effects and hazards to the safety of passengers and crew. There must be greater separation between heavies and smaller aircraft to mitigate the effects of wake turbulence and the potential hazards that it presents.

Original NASA ASRS Text

Title: B737 Captain reported encountering wake turbulence on arrival into LAX in trail of a B777. He recommended that separation between light and heavy aircraft inbound to LAX be increased.

Narrative: Flying the IRNMN approach into LAX. Was put behind a B777. Told ATC distance was insufficient as we started to feel effects of wake turbulence. Told them we were slowing to 190 from the assigned 210. Three weeks ago encountered severe wake turbulence from B747 that turned us to a 45 degree right bank that was completely uncontrollable for 5 seconds. Swore I would never allow that to happen again.LAX is an anomaly in that the air is like a blender. Constantly disturbed. Along with that; ATC is putting us behind heavy and the distance is inadequate to avoid the effects and hazards to the safety of passengers and crew. There must be greater separation between heavies and smaller aircraft to mitigate the effects of wake turbulence and the potential hazards that it presents.

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.

B737 captain reported encountering wake turbulence on arrival into lax in trail of a B777. He recommended that separation between light and heavy aircraft inbound to lax be increased.