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Small aircraft X had near midair collision with small aircraft Y. See and avoid concept. Situation: radar coverage limitation.
| Attributes | |
| ACN | 177796 |
| Time | |
| Date | 199105 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : hch |
| State Reference | TN |
| Altitude | msl bound lower : 6500 msl bound upper : 6500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | None |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 177796 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | conflict : airborne less severe |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Miss Distance | horizontal : 500 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
| Situations | |
| Navigational Aid | Unspecified |
Narrative:
I was working the hinch mountain sector in ZTL, when small aircraft X, a VFR I was giving flight following, reported a 'close call' with small aircraft Y at his altitude. He asked me if I saw the traffic on radar. I did not. The crossville radar site does not provide WX information or primary target data, so this other small aircraft Y at G5 did not have a transponder, so I did not see him. An unsatisfactory condition report has been filed concerning this radar site. We (air traffic controllers) are not being given adequate equipment so we can do our jobs and prevent life-threatening situations.
Original NASA ASRS Text
Title: SMA X HAD NMAC WITH SMA Y. SEE AND AVOID CONCEPT. SITUATION: RADAR COVERAGE LIMITATION.
Narrative: I WAS WORKING THE HINCH MOUNTAIN SECTOR IN ZTL, WHEN SMA X, A VFR I WAS GIVING FLT FOLLOWING, RPTED A 'CLOSE CALL' WITH SMA Y AT HIS ALT. HE ASKED ME IF I SAW THE TFC ON RADAR. I DID NOT. THE CROSSVILLE RADAR SITE DOES NOT PROVIDE WX INFO OR PRIMARY TARGET DATA, SO THIS OTHER SMA Y AT G5 DID NOT HAVE A XPONDER, SO I DID NOT SEE HIM. AN UNSATISFACTORY CONDITION RPT HAS BEEN FILED CONCERNING THIS RADAR SITE. WE (AIR TFC CTLRS) ARE NOT BEING GIVEN ADEQUATE EQUIP SO WE CAN DO OUR JOBS AND PREVENT LIFE-THREATENING SITUATIONS.
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.