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ZTL controller was unaware of conflict developing with 2 aircraft at FL300; captain alarmed and controller acted; averting a loss of separation.
| Attributes | |
| ACN | 692203 |
| Time | |
| Date | 200603 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : hmv.vortac |
| State Reference | TN |
| Altitude | msl single value : 30000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 24 controller time certified in position1 : 15 |
| ASRS Report | 692203 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : flight data |
| Qualification | controller : developmental |
| Events | |
| Anomaly | conflict : airborne less severe |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance |
| Miss Distance | horizontal : 36000 vertical : 0 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
E145 and crj both in cruise at FL300. Conflict alert activated and E145 turned around crj. I never saw it coming. Trainee on d-side (d-side only) never advised me of conflicting traffic. I assume he got an alert on uret but I never saw it. Distracting factors: 1 NORDO in sector. D-side took handoff on aircraft that we couldn't climb into our airspace. Didn't call previous sector to advise so either. Pilot questioning why he couldn't climb. ZTL has been on uret for about 4 months. I'm still highly uncomfortable with it. I cannot build a mental 'picture' with it the way I could with strips.
Original NASA ASRS Text
Title: ZTL CTLR WAS UNAWARE OF CONFLICT DEVELOPING WITH 2 ACFT AT FL300; CAPT ALARMED AND CTLR ACTED; AVERTING A LOSS OF SEPARATION.
Narrative: E145 AND CRJ BOTH IN CRUISE AT FL300. CONFLICT ALERT ACTIVATED AND E145 TURNED AROUND CRJ. I NEVER SAW IT COMING. TRAINEE ON D-SIDE (D-SIDE ONLY) NEVER ADVISED ME OF CONFLICTING TFC. I ASSUME HE GOT AN ALERT ON URET BUT I NEVER SAW IT. DISTRACTING FACTORS: 1 NORDO IN SECTOR. D-SIDE TOOK HDOF ON ACFT THAT WE COULDN'T CLB INTO OUR AIRSPACE. DIDN'T CALL PREVIOUS SECTOR TO ADVISE SO EITHER. PLT QUESTIONING WHY HE COULDN'T CLB. ZTL HAS BEEN ON URET FOR ABOUT 4 MONTHS. I'M STILL HIGHLY UNCOMFORTABLE WITH IT. I CANNOT BUILD A MENTAL 'PICTURE' WITH IT THE WAY I COULD WITH STRIPS.
Data retrieved from NASA's ASRS site as of January 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.