ATC equipment problem BRITE radar scope failure. Maintenance technicians taking scope OTS without coordination with tower.

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Attributes
ACN	284607
Time
Date	199409
Day	Fri
Place
Locale Reference	atc facility : mem
State Reference	TN
Aircraft 1
Controlling Facilities	tower : bos
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller non radar : 11 controller radar : 11
ASRS Report	284607
Person 2
Affiliation	government : faa
Function	other personnel other
Qualification	other other : other
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other
Situations
ATC Facility	procedure or policy : unspecified
Navigational Aid	Unspecified

Narrative:

On several occasions maintenance technicians will be working or just take the local control BRITE displays. When they do this, the displays go into error and we have no idea why. On local control #1 display, we don't ever get an error message. How can we use displays that are unusable if we don't ever know they went out.

Original NASA ASRS Text

Title: ATC EQUIP PROB BRITE RADAR SCOPE FAILURE. MAINT TECHNICIANS TAKING SCOPE OTS WITHOUT COORD WITH TWR.

Narrative: ON SEVERAL OCCASIONS MAINT TECHNICIANS WILL BE WORKING OR JUST TAKE THE LCL CTL BRITE DISPLAYS. WHEN THEY DO THIS, THE DISPLAYS GO INTO ERROR AND WE HAVE NO IDEA WHY. ON LCL CTL #1 DISPLAY, WE DON'T EVER GET AN ERROR MESSAGE. HOW CAN WE USE DISPLAYS THAT ARE UNUSABLE IF WE DON'T EVER KNOW THEY WENT OUT.

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.