BE9L pilot lost aircraft control in turbulence in ZDC class east.

Attributes
ACN	560429
Time
Date	200209
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : iad.airport
State Reference	VA
Altitude	msl single value : 5000
Environment
Flight Conditions	VMC
Weather Elements	Turbulence
Light	Night
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	general aviation : corporate
Make Model Name	King Air C90 E90
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 4000 flight time type : 100
ASRS Report	560429
Person 2
Affiliation	government : faa
Function	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter : turbulence non adherence : far non adherence : published procedure other anomaly other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : compass, altimeter other flight crewa
Resolutory Action	flight crew : returned to assigned altitude flight crew : regained aircraft control flight crew : exited adverse environment flight crew : returned to intended or assigned course
Supplementary
Problem Areas	Weather Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

During en route climb, between 5000 ft and 6000 ft, encountered turbulence, which led to momentary loss of altitude and heading change. Aircraft was trimmed for climb with autoplt off. Aircraft rolled left approximately 120-130 degrees and began a descent. Regained control with wings level and elevator input. Am unsure of exact heading change and altitude loss. Returned to assigned heading and altitude.

Original NASA ASRS Text

Title: BE9L PLT LOST ACFT CTL IN TURB IN ZDC CLASS E.

Narrative: DURING ENRTE CLB, BTWN 5000 FT AND 6000 FT, ENCOUNTERED TURB, WHICH LED TO MOMENTARY LOSS OF ALT AND HEADING CHANGE. ACFT WAS TRIMMED FOR CLB WITH AUTOPLT OFF. ACFT ROLLED L APPROX 120-130 DEGS AND BEGAN A DSCNT. REGAINED CTL WITH WINGS LEVEL AND ELEVATOR INPUT. AM UNSURE OF EXACT HEADING CHANGE AND ALT LOSS. RETURNED TO ASSIGNED HEADING AND ALT.

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.