Pilot lost control of aircraft when BE20 encountered severe turbulence at 16000 ft.

Attributes
ACN	578720
Time
Date	200304
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	msl bound lower : 16000 msl bound upper : 20000
Environment
Flight Conditions	IMC
Weather Elements	Turbulence Ice
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zny.artcc
Operator	common carrier : charter
Operating Under FAR Part	Part 135
Flight Phase	cruise : level
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : charter
Function	flight crew : single pilot
Qualification	pilot : atp pilot : cfi pilot : multi engine
Experience	flight time last 90 days : 40 flight time total : 15850 flight time type : 1500
ASRS Report	578720
Person 2
Affiliation	government : faa
Function	controller : radar
Events
Anomaly	inflight encounter : turbulence other anomaly
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance flight crew : regained aircraft control flight crew : returned to assigned altitude other
Supplementary
Problem Areas	Environmental Factor Weather Flight Crew Human Performance
Primary Problem	Environmental Factor

Narrative:

I had just leveled off at 16000 ft on an assigned s-westerly heading from ZNY. Center gave me a right turn to a westerly heading and a frequency change. During the turn I encountered severe turbulence, that knocked my glasses and headset to the floor. Numerous objects were displaced throughout the cabin. The aircraft lost about 600 ft before I recovered my glasses, headset and control of the aircraft. I requested, and was given, FL180, and later FL200, before the aircraft exited the icing and turbulent conditions.

Original NASA ASRS Text

Title: PLT LOST CTL OF ACFT WHEN BE20 ENCOUNTERED SEVERE TURB AT 16000 FT.

Narrative: I HAD JUST LEVELED OFF AT 16000 FT ON AN ASSIGNED S-WESTERLY HEADING FROM ZNY. CTR GAVE ME A R TURN TO A WESTERLY HEADING AND A FREQ CHANGE. DURING THE TURN I ENCOUNTERED SEVERE TURB, THAT KNOCKED MY GLASSES AND HEADSET TO THE FLOOR. NUMEROUS OBJECTS WERE DISPLACED THROUGHOUT THE CABIN. THE ACFT LOST ABOUT 600 FT BEFORE I RECOVERED MY GLASSES, HEADSET AND CTL OF THE ACFT. I REQUESTED, AND WAS GIVEN, FL180, AND LATER FL200, BEFORE THE ACFT EXITED THE ICING AND TURBULENT CONDITIONS.

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.