MD11 captain reported encountering severe clear air turbulence at FL380 near sln VOR which resulted ...

Attributes
ACN	1338882
Time
Date	201603
Local Time Of Day	1201-1800
Place
Locale Reference	ZKC.ARTCC
State Reference	KS
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	MD-11
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Speed All Types Inflight Event / Encounter Weather / Turbulence

Narrative:

50 NM wnw of sln VOR at FL380 encountered severe turbulence +/- 25 KIAS with a one second overspeed of 5 KIAS followed by stick shaker as airspeed fluctuated. Descended to FL370 to avoid turbulence and again got into severe turbulence 80 NM wnw of sln VOR. No overspeed; but did get into stick shaker. Descended to FL320 to avoid turbulence. Event was written up and follow up inspection showed no damage. Cause was clear air turbulence.

Original NASA ASRS Text

Title: MD11 Captain reported encountering severe clear air turbulence at FL380 near SLN VOR which resulted in a momentary overspeed and stick shaker.

Narrative: 50 NM WNW of SLN VOR at FL380 encountered severe turbulence +/- 25 KIAS with a one second overspeed of 5 KIAS followed by stick shaker as airspeed fluctuated. Descended to FL370 to avoid turbulence and again got into severe turbulence 80 NM WNW of SLN VOR. No overspeed; but did get into stick shaker. Descended to FL320 to avoid turbulence. Event was written up and follow up inspection showed no damage. Cause was clear air turbulence.

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.

MD11 captain reported encountering severe clear air turbulence at FL380 near sln VOR which resulted in a momentary overspeed and stick shaker.