Commercial power surge caused ASR-9 radar failure.

Attributes
ACN	267118
Time
Date	199404
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : clt
State Reference	NC
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dtw
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 8 controller radar : 19 controller supervisory : 1
ASRS Report	267118
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : unable
Consequence	faa : investigated
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other

Narrative:

Clt approach was in the middle of an arrival push with 20 aircraft in the airspace. Primary radar on the ASR-9 failed along with the secondary radar. The supervisor reset the beacon. Secondary radar was restored 5 mins later. This problem with the ASR-9 appears once again linked to a power surge. The controllers at clt wish that the technicians here could get the modification to fix this problem. The power modification should solve this problem. Primary radar returned to service 25 mins later.

Original NASA ASRS Text

Title: COMMERCIAL PWR SURGE CAUSED ASR-9 RADAR FAILURE.

Narrative: CLT APCH WAS IN THE MIDDLE OF AN ARR PUSH WITH 20 ACFT IN THE AIRSPACE. PRIMARY RADAR ON THE ASR-9 FAILED ALONG WITH THE SECONDARY RADAR. THE SUPVR RESET THE BEACON. SECONDARY RADAR WAS RESTORED 5 MINS LATER. THIS PROB WITH THE ASR-9 APPEARS ONCE AGAIN LINKED TO A PWR SURGE. THE CTLRS AT CLT WISH THAT THE TECHNICIANS HERE COULD GET THE MODIFICATION TO FIX THIS PROB. THE PWR MODIFICATION SHOULD SOLVE THIS PROB. PRIMARY RADAR RETURNED TO SVC 25 MINS LATER.

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.