Reporter claims he is leveling at 8050 ft and his encoding altimeter is reading 8300 ft.

Attributes
ACN	321940
Time
Date	199511
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : slc
State Reference	UT
Altitude	msl bound lower : 8000 msl bound upper : 8300
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : slc
Operator	common carrier : air carrier
Make Model Name	Caravan 1 208A
Operating Under FAR Part	Part 135
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 140 flight time total : 4800
ASRS Report	321940
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Leveling at 8000 ft on a climb, departure reported altitude as 8300 ft. I said I was at 8050 ft but level. I then tried #2 transponder. Discussed with mechanics and they said to see if it would duplicate.

Original NASA ASRS Text

Title: RPTR CLAIMS HE IS LEVELING AT 8050 FT AND HIS ENCODING ALTIMETER IS READING 8300 FT.

Narrative: LEVELING AT 8000 FT ON A CLB, DEP RPTED ALT AS 8300 FT. I SAID I WAS AT 8050 FT BUT LEVEL. I THEN TRIED #2 XPONDER. DISCUSSED WITH MECHS AND THEY SAID TO SEE IF IT WOULD DUPLICATE.

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.