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Small transport turned off assigned heading and caused a potential conflict less than standard separation with an light transport.
| Attributes | |
| ACN | 194993 |
| Time | |
| Date | 199111 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : mgw |
| State Reference | WV |
| Altitude | msl bound lower : 15000 msl bound upper : 15000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors enroute airway : zdc |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : corporate |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 194993 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | non adherence : clearance non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 24000 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Took automated handoff from mgw low sector on small transport X at 15000 ft, and light transport Y 17000 descending to 16000. Mgw low sector advised me on line that light transport Y requesting descent to 13000 ft. I told mgw low controller to leave small transport X on assigned heading 155 degrees and I would descend light transport Y when clear. When light transport Y diverged from small transport X by 6 mi I cleared light transport Y to descend to 13000 ft. 40 seconds later I observed small transport X tracking eastbound. Asked his heading. He said 100 degrees on V44. I reassigned the heading 155 degrees and he passed 4 mi behind light transport Y.
Original NASA ASRS Text
Title: SMT TURNED OFF ASSIGNED HDG AND CAUSED A POTENTIAL CONFLICT LTSS WITH AN LTT.
Narrative: TOOK AUTOMATED HDOF FROM MGW LOW SECTOR ON SMT X AT 15000 FT, AND LTT Y 17000 DSNDING TO 16000. MGW LOW SECTOR ADVISED ME ON LINE THAT LTT Y REQUESTING DSCNT TO 13000 FT. I TOLD MGW LOW CTLR TO LEAVE SMT X ON ASSIGNED HDG 155 DEGS AND I WOULD DSND LTT Y WHEN CLR. WHEN LTT Y DIVERGED FROM SMT X BY 6 MI I CLRED LTT Y TO DSND TO 13000 FT. 40 SECONDS LATER I OBSERVED SMT X TRACKING EBOUND. ASKED HIS HDG. HE SAID 100 DEGS ON V44. I REASSIGNED THE HDG 155 DEGS AND HE PASSED 4 MI BEHIND LTT Y.
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.