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ZOB ARTCC received a handoff from an adjacent center on a nebound A320 at FL330 that abruptly turned right into a wbound HS25 descending to FL330. Training was in progress at the time.
| Attributes | |
| ACN | 572283 |
| Time | |
| Date | 200301 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : air.vor |
| State Reference | OH |
| Altitude | msl single value : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc artcc : zid.artcc tower : dca.tower |
| Operator | general aviation : corporate |
| Make Model Name | Harrier |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar controller : supervisor |
| Qualification | controller : radar |
| Experience | controller radar : 12 |
| ASRS Report | 572283 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : developmental |
| Experience | controller radar : 2 |
| ASRS Report | 572287 |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert atc equipment other atc equipment : radar/mode c other controllera other controllerb other flight crewa other flight crewb other other : 3 |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 18000 vertical : 1200 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft #1 was descending from FL350 to FL330 wbound. Aircraft #2 was level at FL330 nebound. Aircraft #2 was way north of course due to another center's instructions. Just after I got aircraft #2, he turned hard right back on course. The sector was very busy and I thought the aircraft (aircraft #2) was flying a northeast route since the other controller never coordinated what he was doing with aircraft #2. Once aircraft #2 turned on course, hard turns and a descent of aircraft 1 were issued. Separation was lost. Supplemental information from acn 572287: A320 nebound made an unexpected right turn and came into confliction with a wbound H25 descending into day.
Original NASA ASRS Text
Title: ZOB ARTCC RECEIVED A HDOF FROM AN ADJACENT CTR ON A NEBOUND A320 AT FL330 THAT ABRUPTLY TURNED R INTO A WBOUND HS25 DSNDING TO FL330. TRAINING WAS IN PROGRESS AT THE TIME.
Narrative: ACFT #1 WAS DSNDING FROM FL350 TO FL330 WBOUND. ACFT #2 WAS LEVEL AT FL330 NEBOUND. ACFT #2 WAS WAY N OF COURSE DUE TO ANOTHER CTR'S INSTRUCTIONS. JUST AFTER I GOT ACFT #2, HE TURNED HARD R BACK ON COURSE. THE SECTOR WAS VERY BUSY AND I THOUGHT THE ACFT (ACFT #2) WAS FLYING A NE RTE SINCE THE OTHER CTLR NEVER COORDINATED WHAT HE WAS DOING WITH ACFT #2. ONCE ACFT #2 TURNED ON COURSE, HARD TURNS AND A DSCNT OF ACFT 1 WERE ISSUED. SEPARATION WAS LOST. SUPPLEMENTAL INFO FROM ACN 572287: A320 NEBOUND MADE AN UNEXPECTED R TURN AND CAME INTO CONFLICTION WITH A WBOUND H25 DSNDING INTO DAY.
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.