 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier widebody transport overheard a second air carrier complain that they had been cleared through the reporter's altitude. Traffic was sighted overhead.
| Attributes | |
| ACN | 189294 |
| Time | |
| Date | 199109 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : yyz |
| State Reference | ON |
| Altitude | msl bound lower : 37000 msl bound upper : 37000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : czyz tower : ewr |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 4 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : flight engineer pilot : commercial pilot : atp |
| Experience | flight time total : 11000 flight time type : 4000 |
| ASRS Report | 189294 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 1500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure Operational Error |
Narrative:
On thur evening, 9/91, we were en route from anc to jfk. We were cruising at our assigned altitude of FL370. At approximately overhead the mans VOR (northwest of toronto) an air carrier Y flight questioned toronto center about our altitude. When the center advised them that we were at FL370, they told toronto that they were filing a report on toronto center for clearing them to FL390 which caused them to pass through our flight path. Evidently toronto center in a previous sector, had cleared them from FL350 to FL390. As they were climbing through FL380 en route to FL390, they passed over the top of us. We were unaware of the conflict until we heard their conversation. I am filing this report to assist in their reporting of the incident.
Original NASA ASRS Text
Title: ACR WDB OVERHEARD A SECOND ACR COMPLAIN THAT THEY HAD BEEN CLRED THROUGH THE RPTR'S ALT. TFC WAS SIGHTED OVERHEAD.
Narrative: ON THUR EVENING, 9/91, WE WERE ENRTE FROM ANC TO JFK. WE WERE CRUISING AT OUR ASSIGNED ALT OF FL370. AT APPROX OVERHEAD THE MANS VOR (NW OF TORONTO) AN ACR Y FLT QUESTIONED TORONTO CENTER ABOUT OUR ALT. WHEN THE CENTER ADVISED THEM THAT WE WERE AT FL370, THEY TOLD TORONTO THAT THEY WERE FILING A RPT ON TORONTO CENTER FOR CLRING THEM TO FL390 WHICH CAUSED THEM TO PASS THROUGH OUR FLT PATH. EVIDENTLY TORONTO CENTER IN A PREVIOUS SECTOR, HAD CLRED THEM FROM FL350 TO FL390. AS THEY WERE CLBING THROUGH FL380 ENRTE TO FL390, THEY PASSED OVER THE TOP OF US. WE WERE UNAWARE OF THE CONFLICT UNTIL WE HEARD THEIR CONVERSATION. I AM FILING THIS RPT TO ASSIST IN THEIR RPTING OF THE INCIDENT.
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.