ATC equipment problem radar failure.

Attributes
ACN	321518
Time
Date	199511
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : dtw
State Reference	MI
Environment
Light	Daylight
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 3 controller radar : 9
ASRS Report	321518
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other

Narrative:

All lighting dimmed in TRACON, for about a quarter second. The alarm light to the left of the 'on line' switch was lighted. Primary radar was lost. The lighting dimmed about 6 or 7 more times in 4 mins. Then secondary radar was lost also, for about 20 seconds. Then primary and secondary radar returned after hitting the reset switches.

Original NASA ASRS Text

Title: ATC EQUIP PROB RADAR FAILURE.

Narrative: ALL LIGHTING DIMMED IN TRACON, FOR ABOUT A QUARTER SECOND. THE ALARM LIGHT TO THE L OF THE 'ON LINE' SWITCH WAS LIGHTED. PRIMARY RADAR WAS LOST. THE LIGHTING DIMMED ABOUT 6 OR 7 MORE TIMES IN 4 MINS. THEN SECONDARY RADAR WAS LOST ALSO, FOR ABOUT 20 SECONDS. THEN PRIMARY AND SECONDARY RADAR RETURNED AFTER HITTING THE RESET SWITCHES.

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.