<< >> NASA ASRS Report 380740, September 1997

Reported situation of 4 radar failures in a week involving the ASR-9 skip channel.

Attributes
ACN	380740
Time
Date	199709
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : mci
State Reference	MO
Environment
Flight Conditions	VMC
Light	Daylight
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar pilot : instrument
Experience	controller non radar : 5 controller radar : 10 flight time total : 600
ASRS Report	380740
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other

Narrative:

The ASR-9 skip channel at mci ATCT has failed 4 times in the last week. On sep/thu/97, the controller had 8 aircraft and was without radar for 5 mins. On sep/sat/97, there were zero aircraft at the time of radar loss but aircraft were held on the ground. The radar was returned in about 5 mins. Airways facilities cannot find a problem and doesn't seem to understand that it will fail again. This time it may be with 30 or 40 aircraft involved.

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Original NASA ASRS Text

Title: RPTED SIT OF 4 RADAR FAILURES IN A WK INVOLVING THE ASR-9 SKIP CHANNEL.

Narrative: THE ASR-9 SKIP CHANNEL AT MCI ATCT HAS FAILED 4 TIMES IN THE LAST WK. ON SEP/THU/97, THE CTLR HAD 8 ACFT AND WAS WITHOUT RADAR FOR 5 MINS. ON SEP/SAT/97, THERE WERE ZERO ACFT AT THE TIME OF RADAR LOSS BUT ACFT WERE HELD ON THE GND. THE RADAR WAS RETURNED IN ABOUT 5 MINS. AIRWAYS FACILITIES CANNOT FIND A PROB AND DOESN'T SEEM TO UNDERSTAND THAT IT WILL FAIL AGAIN. THIS TIME IT MAY BE WITH 30 OR 40 ACFT INVOLVED.

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.