Air carrier large transport experiences an in-flight encounter with severe continuous turbulence.

Attributes
ACN	231986
Time
Date	199212
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : den
State Reference	CO
Altitude	msl bound lower : 32500 msl bound upper : 33600
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : commercial pilot : flight engineer pilot : instrument pilot : atp
Experience	flight time last 90 days : 70 flight time total : 5000 flight time type : 175
ASRS Report	231986
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter other non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited adverse environment flight crew : declared emergency none taken : unable
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

En route from slc to mem at FL330 and mach .80, severe turbulence was encountered 35 NM northwest of the denver VOR. The autoplt was kicked off (involuntary disconnection) by the turbulence. Altdevs were from 33600 ft to 32500 ft MSL. Airspds were from .95 mach to .76 mach. Time duration of encounter, 5 mins. The aircraft throttles were placed at idle and the speed brakes were fully deployed. The aircraft was rerted north of the flight plan to avoid reported turbulence but to no avail.

Original NASA ASRS Text

Title: ACR LGT EXPERIENCES AN INFLT ENCOUNTER WITH SEVERE CONTINUOUS TURB.

Narrative: ENRTE FROM SLC TO MEM AT FL330 AND MACH .80, SEVERE TURB WAS ENCOUNTERED 35 NM NW OF THE DENVER VOR. THE AUTOPLT WAS KICKED OFF (INVOLUNTARY DISCONNECTION) BY THE TURB. ALTDEVS WERE FROM 33600 FT TO 32500 FT MSL. AIRSPDS WERE FROM .95 MACH TO .76 MACH. TIME DURATION OF ENCOUNTER, 5 MINS. THE ACFT THROTTLES WERE PLACED AT IDLE AND THE SPD BRAKES WERE FULLY DEPLOYED. THE ACFT WAS RERTED N OF THE FLT PLAN TO AVOID RPTED TURB BUT TO NO AVAIL.

Data retrieved from NASA's ASRS site as of July 2007 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.