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Air carrier X non compliance with ATC instructions possible less than standard separation with aircraft Y. Operational error. Potential conflict.
| Attributes | |
| ACN | 212641 |
| Time | |
| Date | 199206 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : arg |
| State Reference | AR |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zme |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other cruise other descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 130 flight time total : 5700 flight time type : 130 |
| ASRS Report | 212641 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 18000 vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Pilot Deviation Operational Error |
Narrative:
Air carrier X requested deviation north of course (right) on climb through 27000 going to 31000, due to convective activity. Controller cleared us to deviation right as necessary, then direct, when able, to next fix (RNAV direct). Gave us a frequency change and we checked in. Approximately 30 seconds later, new controller requested left turn due to traffic. We advised unable, and he requested immediate hard right 368 degree turn. As we started autoplt turn, controller told us to increase rate of turn. As autoplt was only giving 15 degrees bank at that weight and altitude. The captain disconnected the autoplt and increased bank to 30 degrees. At the same time, controller requested immediate rapid descent to 29000. The captain gave him 3500-4000 FPM. At no time did the controller report position or altitude of conflicting aircraft Y. When I asked how close we were, the controller, very relieved, said, 'well it scared the blank out of me.' I can only assume that the handoff from our previous controller was not entirely complete, as we were doing exactly what we had been cleared to do. I also think we possibly could have made a better decision of deviating if we had requested the conflicting traffic position or the controller had told us it's position.
Original NASA ASRS Text
Title: ACR X NON COMPLIANCE WITH ATC INSTRUCTIONS POSSIBLE LTSS WITH ACFT Y. OPERROR. POTENTIAL CONFLICT.
Narrative: ACR X REQUESTED DEV N OF COURSE (R) ON CLB THROUGH 27000 GOING TO 31000, DUE TO CONVECTIVE ACTIVITY. CTLR CLRED US TO DEV R AS NECESSARY, THEN DIRECT, WHEN ABLE, TO NEXT FIX (RNAV DIRECT). GAVE US A FREQ CHANGE AND WE CHKED IN. APPROX 30 SECONDS LATER, NEW CTLR REQUESTED L TURN DUE TO TFC. WE ADVISED UNABLE, AND HE REQUESTED IMMEDIATE HARD R 368 DEG TURN. AS WE STARTED AUTOPLT TURN, CTLR TOLD US TO INCREASE RATE OF TURN. AS AUTOPLT WAS ONLY GIVING 15 DEGS BANK AT THAT WT AND ALT. THE CAPT DISCONNECTED THE AUTOPLT AND INCREASED BANK TO 30 DEGS. AT THE SAME TIME, CTLR REQUESTED IMMEDIATE RAPID DSCNT TO 29000. THE CAPT GAVE HIM 3500-4000 FPM. AT NO TIME DID THE CTLR RPT POS OR ALT OF CONFLICTING ACFT Y. WHEN I ASKED HOW CLOSE WE WERE, THE CTLR, VERY RELIEVED, SAID, 'WELL IT SCARED THE BLANK OUT OF ME.' I CAN ONLY ASSUME THAT THE HDOF FROM OUR PREVIOUS CTLR WAS NOT ENTIRELY COMPLETE, AS WE WERE DOING EXACTLY WHAT WE HAD BEEN CLRED TO DO. I ALSO THINK WE POSSIBLY COULD HAVE MADE A BETTER DECISION OF DEVIATING IF WE HAD REQUESTED THE CONFLICTING TFC POS OR THE CTLR HAD TOLD US IT'S POS.
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.