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Air carrier large transport turned in the wrong direction for climb away from turbulence and into the path of opposite direction air carrier medium large transport resulting in less than standard separation.
| Attributes | |
| ACN | 95799 |
| Time | |
| Date | 198810 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : lbf |
| State Reference | NE |
| Altitude | msl bound lower : 35000 msl bound upper : 36200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors enroute airway : zdv |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 18 |
| ASRS Report | 95799 |
| 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 |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | none taken : insufficient time |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 25200 vertical : 1200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Large transport X, on a vector getting turbulence at FL330, had twice requested higher for turbulence, this time asked for turn to get higher. I thought and meant to turn him left 30 degree but actually turned him right 30 into wbound traffic. Callback conversation with reporter revealed following information. Reporter tried to accommodate large transport X to allow a climb above the turbulence, so he gave a turn off the airway for climb. The system error occurred because he said turn right 30 degrees when he meant to say turn left 30 degrees. Reporter stated that the irony was if he had not turned the aircraft, but left it on the airway, no loss of sep would have occurred.
Original NASA ASRS Text
Title: ACR LGT TURNED IN THE WRONG DIRECTION FOR CLIMB AWAY FROM TURBULENCE AND INTO THE PATH OF OPPOSITE DIRECTION ACR MLG RESULTING IN LESS THAN STANDARD SEPARATION.
Narrative: LGT X, ON A VECTOR GETTING TURB AT FL330, HAD TWICE REQUESTED HIGHER FOR TURB, THIS TIME ASKED FOR TURN TO GET HIGHER. I THOUGHT AND MEANT TO TURN HIM L 30 DEG BUT ACTUALLY TURNED HIM R 30 INTO WBOUND TFC. CALLBACK CONVERSATION WITH RPTR REVEALED FOLLOWING INFO. REPORTER TRIED TO ACCOMMODATE LGT X TO ALLOW A CLB ABOVE THE TURB, SO HE GAVE A TURN OFF THE AIRWAY FOR CLB. THE SYS ERROR OCCURRED BECAUSE HE SAID TURN R 30 DEGS WHEN HE MEANT TO SAY TURN L 30 DEGS. RPTR STATED THAT THE IRONY WAS IF HE HAD NOT TURNED THE ACFT, BUT LEFT IT ON THE AIRWAY, NO LOSS OF SEP WOULD HAVE OCCURRED.
Data retrieved from NASA's ASRS site as of August 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.