Situation: failure of ont TRACON standby power to keep facility on line.

Attributes
ACN	124089
Time
Date	198909
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ont
State Reference	CA
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller non radar : 2 controller radar : 6
ASRS Report	124089
Events
Anomaly	conflict : ground critical
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other
Situations
ATC Facility	other physical facility

Narrative:

On 7 occasions in the above-mentioned time frame, ontario TRACON has suffered a loss of commercial power. The recovery to back-up power has not always been successful, nor has all equipment been restored on every occasion. This facility has lost radios, radar, and landlines. In 9/89 the facility was forced to give all air traffic responsibilities to los angeles ARTCC for a period of almost 2 hours. This is at best a risky situation with the facility power supply. Consideration needs to be given as to alternatives to our present power supply situation.

Original NASA ASRS Text

Title: SITUATION: FAILURE OF ONT TRACON STANDBY POWER TO KEEP FAC ON LINE.

Narrative: ON 7 OCCASIONS IN THE ABOVE-MENTIONED TIME FRAME, ONTARIO TRACON HAS SUFFERED A LOSS OF COMMERCIAL POWER. THE RECOVERY TO BACK-UP POWER HAS NOT ALWAYS BEEN SUCCESSFUL, NOR HAS ALL EQUIPMENT BEEN RESTORED ON EVERY OCCASION. THIS FAC HAS LOST RADIOS, RADAR, AND LANDLINES. IN 9/89 THE FAC WAS FORCED TO GIVE ALL AIR TFC RESPONSIBILITIES TO LOS ANGELES ARTCC FOR A PERIOD OF ALMOST 2 HRS. THIS IS AT BEST A RISKY SITUATION WITH THE FAC POWER SUPPLY. CONSIDERATION NEEDS TO BE GIVEN AS TO ALTERNATIVES TO OUR PRESENT POWER SUPPLY SITUATION.

Data retrieved from NASA's ASRS site as of August 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.