A B737-700 flight crew experienced momentary loss of control in severe turbulence.

Attributes
ACN	830450
Time
Date	200904
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Experience	Flight Crew Last 90 Days 194 Flight Crew Type 7500
Events
Anomaly	Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Weather / Turbulence

Narrative:

This event was a weather related (later determined to be a fast moving cold front) encounter with severe turbulence. Due to what a perceived to be a turbulent ride ahead; I seated the flight attendants early. At approximately 8;900 ft MSL at 245 KTS; I encountered what I believe was severe turbulence. I had 3/4 control column (roll) input and 1/2 rudder and the aircraft was still rolling. This fact meets the definition of a temporary loss of aircraft control.

Original NASA ASRS Text

Title: A B737-700 flight crew experienced momentary loss of control in severe turbulence.

Narrative: This event was a weather related (later determined to be a fast moving cold front) encounter with severe turbulence. Due to what a perceived to be a turbulent ride ahead; I seated the Flight Attendants early. At approximately 8;900 FT MSL at 245 KTS; I encountered what I believe was severe turbulence. I had 3/4 control column (roll) input and 1/2 rudder and the aircraft was still rolling. This fact meets the definition of a temporary loss of aircraft control.

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.