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Medium large transport air carrier transport miscommunicates ATC clearance, assuming clearance given is direct vxv VORTAC instead of vwv VORTAC.
| Attributes | |
| ACN | 427870 |
| Time | |
| Date | 199902 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : rod.vortac |
| State Reference | OH |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Turbulence |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | cruise : level |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : flight engineer pilot : commercial pilot : cfi pilot : atp pilot : instrument |
| Experience | controller military : 26 flight time total : 10050 |
| ASRS Report | 427870 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Aircraft #1, dtw to atl, was at cruise when ATC asked if we were on a heading to flm. We were not, we were going direct vxv (although only 10 degrees off a heading direct flm). ATC assumed we were on a heading or on J43. I thought we were given direct vxv. However, our original route was vwv.rd.J43.vxv and the controllers may have given us direct vwv and we told the FMS direct vxv, thereby causing the error. In any case, we both thought we were cleared direct vxv.
Original NASA ASRS Text
Title: MLG ACR TRANSPORT MISCOMMUNICATES ATC CLRNC, ASSUMING CLRNC GIVEN IS DIRECT VXV VORTAC INSTEAD OF VWV VORTAC.
Narrative: ACFT #1, DTW TO ATL, WAS AT CRUISE WHEN ATC ASKED IF WE WERE ON A HDG TO FLM. WE WERE NOT, WE WERE GOING DIRECT VXV (ALTHOUGH ONLY 10 DEGS OFF A HDG DIRECT FLM). ATC ASSUMED WE WERE ON A HDG OR ON J43. I THOUGHT WE WERE GIVEN DIRECT VXV. HOWEVER, OUR ORIGINAL RTE WAS VWV.RD.J43.VXV AND THE CTLRS MAY HAVE GIVEN US DIRECT VWV AND WE TOLD THE FMS DIRECT VXV, THEREBY CAUSING THE ERROR. IN ANY CASE, WE BOTH THOUGHT WE WERE CLRED DIRECT VXV.
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.