B737 first officer reported encountering wake turbulence on descent to lax in trail of an A380. They...

Narrative:

ATC had been vectoring us to gain separation and they asked to slow to slowest possible speed while enroute to lax. We were 'number 2 in sequence following an airbus 380.' while descending through approximately 32;500 MSL between waypoint douit and crowy; we experienced a significant 'burble' and roll to the right. Automation was disengaged and roll was arrested immediately while resuming normal flight parameters. Then it occurred again within approximately 1-2 minutes. We reported our encounter to ATC and requested more divergent heading and altitude from the suspect wake-generating aircraft; the A380. We did not have visual contact with the traffic. We assessed the aircraft; the crew; the passengers. One of the fas was knocked down and the back of the aircraft was a mess due to service items being dislodged. Passengers were all fine. Pas were made to inform passengers about the situation. Messages were sent to dispatch and destination. Customer service support was requested as well. Upon final approach into lax; we were once again trailing the same A380 and winds were very; very light. We requested more spacing as we were landing on same runway. Approach and landing were uneventful.wake turbulence separation criteria for super-heavies needs to be assessed and perhaps more separation is necessary. Unfortunately; even with adequate spacing today we experienced a significant event that may be prevented in the future.

Original NASA ASRS Text

Title: B737 First Officer reported encountering wake turbulence on descent to LAX in trail of an A380. They stated 'perhaps more separation is necessary' behind super jumbo aircraft.

Narrative: ATC had been vectoring us to gain separation and they asked to slow to slowest possible speed while enroute to LAX. We were 'number 2 in sequence following an Airbus 380.' While descending through approximately 32;500 MSL between waypoint DOUIT and CROWY; we experienced a significant 'burble' and roll to the right. Automation was disengaged and roll was arrested immediately while resuming normal flight parameters. Then it occurred again within approximately 1-2 minutes. We reported our encounter to ATC and requested more divergent heading and altitude from the suspect wake-generating aircraft; the A380. We did not have visual contact with the traffic. We assessed the aircraft; the crew; the passengers. One of the FAs was knocked down and the back of the aircraft was a mess due to service items being dislodged. Passengers were all fine. PAs were made to inform passengers about the situation. Messages were sent to Dispatch and destination. Customer service support was requested as well. Upon final approach into LAX; we were once again trailing the same A380 and winds were very; very light. We requested more spacing as we were landing on same runway. Approach and landing were uneventful.Wake turbulence separation criteria for super-heavies needs to be assessed and perhaps more separation is necessary. Unfortunately; even with adequate spacing today we experienced a significant event that may be prevented in the future.

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.

Attributes
ACN	1486971
Time
Date	201710
Local Time Of Day	1201-1800
Place
Locale Reference	LAX.Airport
State Reference	CA
Environment
Light	Daylight
Aircraft 1
Make Model Name	B737 Next Generation Undifferentiated
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Aircraft 2
Make Model Name	A380
Operating Under FAR Part	Part 129
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 552 Flight Crew Type 945
Events
Anomaly	Inflight Event / Encounter Wake Vortex Encounter

B737 first officer reported encountering wake turbulence on descent to lax in trail of an A380. They stated 'perhaps more separation is necessary' behind super jumbo aircraft.