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ZOB controller experienced operational error at approximately FL320 when overlooking the issued altitude in the data block and assigning a conflicting altitude.
| Attributes | |
| ACN | 680089 |
| Time | |
| Date | 200511 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : mfd.vortac |
| State Reference | OH |
| Altitude | msl bound lower : 32000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Ice Turbulence |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Other |
| 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 limited radar : 20 controller non radar : 22 controller radar : 18 controller time certified in position1 : 18 |
| ASRS Report | 680089 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller limited radar : 23 controller radar : 20 controller time certified in position1 : 20 |
| ASRS Report | 679720 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued new clearance controller : issued alert |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 5000 vertical : 600 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I issued climb clearance to FL330 to air carrier X when; supposedly; FL320 was in the data block from the controller working the airspace above mine. There was an aircraft at FL330 that responded to a TCAS RA because air carrier X climbing underneath. The conflict alert started and separation was lost. If FL320 was in the data block; it was an oversight on my part to issue FL330.
Original NASA ASRS Text
Title: ZOB CTLR EXPERIENCED OPERROR AT APPROX FL320 WHEN OVERLOOKING THE ISSUED ALT IN THE DATA BLOCK AND ASSIGNING A CONFLICTING ALT.
Narrative: I ISSUED CLB CLRNC TO FL330 TO ACR X WHEN; SUPPOSEDLY; FL320 WAS IN THE DATA BLOCK FROM THE CTLR WORKING THE AIRSPACE ABOVE MINE. THERE WAS AN ACFT AT FL330 THAT RESPONDED TO A TCAS RA BECAUSE ACR X CLBING UNDERNEATH. THE CONFLICT ALERT STARTED AND SEPARATION WAS LOST. IF FL320 WAS IN THE DATA BLOCK; IT WAS AN OVERSIGHT ON MY PART TO ISSUE FL330.
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.