A corporate jet following a B737 experienced severe wake turbulence at 8000'.

Attributes
ACN	860422
Time
Date	200911
Local Time Of Day	1201-1800
Place
Locale Reference	PHX.Airport
State Reference	AZ
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Not Flying
Events
Anomaly	Deviation - Altitude Excursion From Assigned Altitude Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Wake Vortex Encounter

Narrative:

On a flight severe wake turbulence was experienced on the descent to the cleared altitude of 8000 feet. After recovery from the wake upset and altitude loss; ATC notified of a possible pilot deviation at 7600 feet questioning clearance to 8000. After loss of altitude and as soon as the aircraft was stabilized; immediate corrective action to 8000 feet was made.

Original NASA ASRS Text

Title: A corporate jet following a B737 experienced severe wake turbulence at 8000'.

Narrative: On a flight severe wake turbulence was experienced on the descent to the cleared altitude of 8000 feet. After recovery from the wake upset and altitude loss; ATC notified of a possible pilot deviation at 7600 feet questioning clearance to 8000. After loss of altitude and as soon as the aircraft was stabilized; immediate corrective action to 8000 feet was made.

Data retrieved from NASA's ASRS site as of April 2012 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.