ARTCC had a complete power failure including the backup power unit. Radios, radar and communication system were all involved. Reporter was able to prevent a loss of separation when the power returned by turning 2 aircraft immediately.

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Attributes
ACN	389314
Time
Date	199712
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : stl
State Reference	MO
Altitude	msl bound lower : 24000 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc tower : bos
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 10
ASRS Report	389314
Person 2
Function	flight crew : single pilot
Qualification	pilot : instrument
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	other other
Consequence	Other
Supplementary
Air Traffic Incident	other
Situations
ATC Facility	other physical facility

Narrative:

I was working approximately 10 aircraft, when the radar, radios, and all backup equipment failed. I was without frequencys for 4 mins before the communication system returned. I was without radar for 15 mins, until darc returned on a limited level. No separation was lost. However 2 aircraft, had to be turned dramatically when radar returned, to maintain separation. This situation was caused by not having flight plan information on 1 aircraft.

Original NASA ASRS Text

Title: ARTCC HAD A COMPLETE PWR FAILURE INCLUDING THE BACKUP PWR UNIT. RADIOS, RADAR AND COM SYS WERE ALL INVOLVED. RPTR WAS ABLE TO PREVENT A LOSS OF SEPARATION WHEN THE PWR RETURNED BY TURNING 2 ACFT IMMEDIATELY.

Narrative: I WAS WORKING APPROX 10 ACFT, WHEN THE RADAR, RADIOS, AND ALL BACKUP EQUIP FAILED. I WAS WITHOUT FREQS FOR 4 MINS BEFORE THE COM SYS RETURNED. I WAS WITHOUT RADAR FOR 15 MINS, UNTIL DARC RETURNED ON A LIMITED LEVEL. NO SEPARATION WAS LOST. HOWEVER 2 ACFT, HAD TO BE TURNED DRAMATICALLY WHEN RADAR RETURNED, TO MAINTAIN SEPARATION. THIS SIT WAS CAUSED BY NOT HAVING FLT PLAN INFO ON 1 ACFT.

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.