<< >> NASA ASRS Report 781493, April 2008

A80 controller described near midair collision at 3000 ft; alleging available radar coverage limitations and staffing as contributing factors.

Attributes
ACN	781493
Time
Date	200804
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : a80.tracon
State Reference	GA
Altitude	msl single value : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : a80.tracon
Operator	general aviation : personal
Make Model Name	SR20
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : approach ground : maintenance
Aircraft 2
Controlling Facilities	tracon : a80.tracon
Operator	general aviation : personal
Make Model Name	Bonanza 33
Operating Under FAR Part	Part 91
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 19 controller time certified in position1 : 3
ASRS Report	781493
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac
Independent Detector	other controllera
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 200 vertical : 0
Supplementary
Problem Areas	Chart Or Publication Navigational Facility
Primary Problem	Navigational Facility

Narrative:

Aircraft #1 was cleared for GPS 4 approach into gvl. Near the NDB (fkv) aircraft #1 reported an near midair collision requiring evasive action and asked why I did not see the traffic. I responded that I was being required to use a radar site that did not provide coverage much below 5000 ft. The incident occurred around 3000 ft. The worst aspect of this incident is that we have access to a radar site that will provide coverage to the ground in that area. But it was not in use because we did not have enough people to open the sector.

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Original NASA ASRS Text

Title: A80 CTLR DESCRIBED NMAC AT 3000 FT; ALLEGING AVAILABLE RADAR COVERAGE LIMITATIONS AND STAFFING AS CONTRIBUTING FACTORS.

Narrative: ACFT #1 WAS CLRED FOR GPS 4 APCH INTO GVL. NEAR THE NDB (FKV) ACFT #1 RPTED AN NMAC REQUIRING EVASIVE ACTION AND ASKED WHY I DID NOT SEE THE TFC. I RESPONDED THAT I WAS BEING REQUIRED TO USE A RADAR SITE THAT DID NOT PROVIDE COVERAGE MUCH BELOW 5000 FT. THE INCIDENT OCCURRED AROUND 3000 FT. THE WORST ASPECT OF THIS INCIDENT IS THAT WE HAVE ACCESS TO A RADAR SITE THAT WILL PROVIDE COVERAGE TO THE GND IN THAT AREA. BUT IT WAS NOT IN USE BECAUSE WE DID NOT HAVE ENOUGH PEOPLE TO OPEN THE SECTOR.

Data retrieved from NASA's ASRS site as of May 2009 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.