Pilot deviation climbed to incorrect altitude.

Attributes
ACN	293070
Time
Date	199501
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : dtw
State Reference	MI
Altitude	msl bound lower : 5000 msl bound upper : 7000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : dtw
Operator	general aviation : corporate
Make Model Name	MU-2
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot oversight : pic
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 80 flight time total : 23000 flight time type : 4500
ASRS Report	293070
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

(Airframe icing was a distracting factor). I was cleared by ATC to 5000 ft. I repeated back the correct altitude but mistakenly set 7000 ft in my altitude reminder. As I was leveling at 7000 ft approach control called and said I was cleared to 5000 ft. I immediately descended.

Original NASA ASRS Text

Title: PLTDEV CLBED TO INCORRECT ALT.

Narrative: (AIRFRAME ICING WAS A DISTRACTING FACTOR). I WAS CLRED BY ATC TO 5000 FT. I REPEATED BACK THE CORRECT ALT BUT MISTAKENLY SET 7000 FT IN MY ALT REMINDER. AS I WAS LEVELING AT 7000 FT APCH CTL CALLED AND SAID I WAS CLRED TO 5000 FT. I IMMEDIATELY DSNDED.

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.