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Reporter states that an area adjacent to ZTL sector 17, which overlies a portion of atl approach has been inhibited so VFR mode C aircraft do not display their altitude(south). Controllers working this sector cannot state the altitude of the VFR aircraft when they issue traffic.
| Attributes | |
| ACN | 446883 |
| Time | |
| Date | 199908 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ztl.artcc |
| State Reference | GA |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : lax.tower |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar controller : handoff position |
| Qualification | controller : radar |
| Experience | controller radar : 15 |
| ASRS Report | 446883 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : investigated |
| Supplementary | |
| Problem Areas | ATC Human Performance Maintenance Human Performance ATC Facility |
| Primary Problem | ATC Facility |
| Situations | |
| ATC Facility | radar equipment : ztl.artcc |
Narrative:
The controller working the athens sector, sector 17 is unable to provide safety alerts for VFR aircraft operating within portions of atl approach control airspace. Mode C altitude is being blocked and is not being displayed for VFR aircraft operating within an arc beginning at the atl VOR and extending outwards for 35 mi. The controller working the athens sector routinely takes handoffs and xfer of communications on aircraft operating within this area. Callback conversation with reporter revealed the following information: reporter stated that since he sent the report, airways facilities has acknowledged the problem and is taking action to fix it.
Original NASA ASRS Text
Title: RPTR STATES THAT AN AREA ADJACENT TO ZTL SECTOR 17, WHICH OVERLIES A PORTION OF ATL APCH HAS BEEN INHIBITED SO VFR MODE C ACFT DO NOT DISPLAY THEIR ALT(S). CTLRS WORKING THIS SECTOR CANNOT STATE THE ALT OF THE VFR ACFT WHEN THEY ISSUE TFC.
Narrative: THE CTLR WORKING THE ATHENS SECTOR, SECTOR 17 IS UNABLE TO PROVIDE SAFETY ALERTS FOR VFR ACFT OPERATING WITHIN PORTIONS OF ATL APCH CTL AIRSPACE. MODE C ALT IS BEING BLOCKED AND IS NOT BEING DISPLAYED FOR VFR ACFT OPERATING WITHIN AN ARC BEGINNING AT THE ATL VOR AND EXTENDING OUTWARDS FOR 35 MI. THE CTLR WORKING THE ATHENS SECTOR ROUTINELY TAKES HDOFS AND XFER OF COMS ON ACFT OPERATING WITHIN THIS AREA. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT SINCE HE SENT THE RPT, AIRWAYS FACILITIES HAS ACKNOWLEDGED THE PROB AND IS TAKING ACTION TO FIX IT.
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.