ATC radar equipment problem ARTS ii mode C altitude jump.

Attributes
ACN	225979
Time
Date	199211
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : lal
State Reference	FL
Altitude	msl bound lower : 7000 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : direct enroute airway : tpa
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 5 controller radar : 10
ASRS Report	225979
Person 2
Function	flight crew : single pilot
Qualification	pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other controllera
Resolutory Action	none taken : unable
Consequence	faa : investigated
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other

Narrative:

Aircraft was level at 7000 ft when the mode C readout jumped to 50900 ft. Aircraft was manually handed off to orlando approach and event was reported via tpa form 6190-2.

Original NASA ASRS Text

Title: ATC RADAR EQUIP PROBLEM ARTS II MODE C ALT JUMP.

Narrative: ACFT WAS LEVEL AT 7000 FT WHEN THE MODE C READOUT JUMPED TO 50900 FT. ACFT WAS MANUALLY HANDED OFF TO ORLANDO APCH AND EVENT WAS RPTED VIA TPA FORM 6190-2.

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.