ZLA controller reports a hawker 125 reported severe turbulence; the aircraft was following a heavy B...

Narrative:

Aircraft X reported descending for severe wake turbulence before entering my airspace. I observed the change in altitude during a transmission to another aircraft that had been blocked. As I went to talk to aircraft X; he reported descending for severe wake turbulence. We discussed possible traffic in the area and I determined that it was probably wake turbulence from aircraft Y which was approximately 10-12 miles in front at the time of the incident. I descended aircraft X immediately to FL300 to get aircraft X under control and keep them out of the wake turbulence and then immediately notified slc sector 46 to advise them of the descent. Slc sector 46 released control. I then assigned a slower speed to aircraft X to make more room since aircraft X would be following aircraft Y into las; the winds were about 50kts out of the northwest at the time. It is not unusual to get bad rides in the area; but no other mod to severe turbulence was reported before the incident.not sure of any recommendations because this is an unusual situation.

Original NASA ASRS Text

Title: ZLA Controller reports a Hawker 125 reported severe turbulence; the aircraft was following a heavy B767-300 on the same route 10 to 12 miles ahead. The Controller gave a further descent clearance to the aircraft to a suitable altitude.

Narrative: Aircraft X reported descending for severe wake turbulence before entering my airspace. I observed the change in altitude during a transmission to another aircraft that had been blocked. As I went to talk to Aircraft X; he reported descending for severe wake turbulence. We discussed possible traffic in the area and I determined that it was probably wake turbulence from Aircraft Y which was approximately 10-12 miles in front at the time of the incident. I descended Aircraft X immediately to FL300 to get Aircraft X under control and keep them out of the wake turbulence and then immediately notified SLC sector 46 to advise them of the descent. SLC sector 46 released control. I then assigned a slower speed to Aircraft X to make more room since Aircraft X would be following Aircraft Y into LAS; the winds were about 50kts out of the NW at the time. It is not unusual to get bad rides in the area; but no other mod to severe turbulence was reported before the incident.Not sure of any recommendations because this is an unusual situation.

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	1215394
Time
Date	201411
Local Time Of Day	1801-2400
Place
Locale Reference	ZLA.ARTCC
State Reference	CA
Environment
Light	Daylight
Aircraft 1
Make Model Name	HS 125 Series
Flight Phase	Cruise
Flight Plan	IFR
Aircraft 2
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	Enroute
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 11
Events
Anomaly	Inflight Event / Encounter Weather / Turbulence Inflight Event / Encounter Wake Vortex Encounter

ZLA controller reports a hawker 125 reported severe turbulence; the aircraft was following a heavy B767-300 on the same route 10 to 12 miles ahead. The controller gave a further descent clearance to the aircraft to a suitable altitude.