BE58 pilot gets off his assigned altitude during a night atx flight.

Attributes
ACN	383730
Time
Date	199710
Day	Fri
Local Time Of Day	0001 To 0600
Place
Locale Reference	atc facility : gsp
State Reference	SC
Altitude	msl bound lower : 7000 msl bound upper : 7300
Environment
Flight Conditions	Marginal
Light	Night
Aircraft 1
Controlling Facilities	artcc : ztl
Operator	common carrier : air taxi
Make Model Name	Baron 58/58TC
Operating Under FAR Part	Part 135
Flight Phase	climbout : intermediate altitude cruise other cruise other
Route In Use	enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time total : 1827
ASRS Report	383730
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Altitude in excess of 300 ft from that assigned by ATC.

Original NASA ASRS Text

Title: BE58 PLT GETS OFF HIS ASSIGNED ALT DURING A NIGHT ATX FLT.

Narrative: ALT IN EXCESS OF 300 FT FROM THAT ASSIGNED BY ATC.

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.