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A mlt aircraft requested and was given an altitude that conflicted with another aircraft resulting in less than standard separation.
| Attributes | |
| ACN | 156364 |
| Time | |
| Date | 199009 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : cyhz |
| State Reference | NS |
| Altitude | msl bound lower : 33200 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | other |
| Make Model Name | Military Transport |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : other oceanic |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Military Transport |
| Flight Phase | cruise other |
| Route In Use | enroute : other oceanic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : non radar |
| Qualification | controller : non radar controller : radar |
| Experience | controller non radar : 5 controller radar : 2 |
| ASRS Report | 156364 |
| Person 2 | |
| Affiliation | government : military |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : military |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 6000 vertical : 1800 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was working sectors 70,71,72 combined with approximately 40 strips in the bay. Traffic was slow. Mlt X requested higher altitude. I did a traffic search and climbed the aircraft. Mlt X then reported mlt Y, widebody transport westbound at FL350. I checked the bays and discovered I had over looked that strip. I promptly turned in the error. My mistake was I did an improper traffic search. A human error. A possible factor was it was my first day back after two weeks vacation. Besides doing a better traffic search, the only other way I could have caught this, if dots was operational and a monitor was at the sector.
Original NASA ASRS Text
Title: A MLT ACFT REQUESTED AND WAS GIVEN AN ALT THAT CONFLICTED WITH ANOTHER ACFT RESULTING IN LESS THAN STANDARD SEPARATION.
Narrative: I WAS WORKING SECTORS 70,71,72 COMBINED WITH APPROX 40 STRIPS IN THE BAY. TFC WAS SLOW. MLT X REQUESTED HIGHER ALT. I DID A TFC SEARCH AND CLBED THE ACFT. MLT X THEN RPTED MLT Y, WDB WBND AT FL350. I CHKED THE BAYS AND DISCOVERED I HAD OVER LOOKED THAT STRIP. I PROMPTLY TURNED IN THE ERROR. MY MISTAKE WAS I DID AN IMPROPER TFC SEARCH. A HUMAN ERROR. A POSSIBLE FACTOR WAS IT WAS MY FIRST DAY BACK AFTER TWO WKS VACATION. BESIDES DOING A BETTER TFC SEARCH, THE ONLY OTHER WAY I COULD HAVE CAUGHT THIS, IF DOTS WAS OPERATIONAL AND A MONITOR WAS AT THE SECTOR.
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.