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Air carrier X non adherence to ATC clearance heading deviation WX factor had less than standard separation from aircraft Y. Pilot deviation.
| Attributes | |
| ACN | 201579 |
| Time | |
| Date | 199203 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 10000 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 15 |
| ASRS Report | 201579 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : required legal separation other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 500 |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X, medium large transport at 11000. Aircraft were deviation because of WX. The frequency was very busy with check-INS and ATC instructions. I observed air carrier X turn due east off the arrival which flies to acton VOR 040 right. I had previously told air carrier X to deviation no more than 30 degrees. When I asked him what was he doing he told me he turned because he could not get a word in edgewise. I told him that was departure traffic climbing off his right to 170 and in trail traffic. Said never mind. Air carrier X passed 1 mi behind the traffic. The departure controller reassigned the conflicting departure aircraft Y to 10000. The mode C of the departure was 105 back to 102. Supplemental information from acn 201577. Air carrier X cleared on 040 degree radial. Required deviation right for thunderstorm avoidance. We were unable to contact approach control due to frequency saturation until after deviation from heading.
Original NASA ASRS Text
Title: ACR X NON ADHERENCE TO ATC CLRNC HDG DEV WX FACTOR HAD LTSS FROM ACFT Y. PLTDEV.
Narrative: ACR X, MLG AT 11000. ACFT WERE DEV BECAUSE OF WX. THE FREQ WAS VERY BUSY WITH CHK-INS AND ATC INSTRUCTIONS. I OBSERVED ACR X TURN DUE E OFF THE ARR WHICH FLIES TO ACTON VOR 040 R. I HAD PREVIOUSLY TOLD ACR X TO DEV NO MORE THAN 30 DEGS. WHEN I ASKED HIM WHAT WAS HE DOING HE TOLD ME HE TURNED BECAUSE HE COULD NOT GET A WORD IN EDGEWISE. I TOLD HIM THAT WAS DEP TFC CLBING OFF HIS R TO 170 AND IN TRAIL TFC. SAID NEVER MIND. ACR X PASSED 1 MI BEHIND THE TFC. THE DEP CTLR REASSIGNED THE CONFLICTING DEP ACFT Y TO 10000. THE MODE C OF THE DEP WAS 105 BACK TO 102. SUPPLEMENTAL INFO FROM ACN 201577. ACR X CLRED ON 040 DEG RADIAL. REQUIRED DEV R FOR TSTM AVOIDANCE. WE WERE UNABLE TO CONTACT APCH CTL DUE TO FREQ SATURATION UNTIL AFTER DEV FROM HDG.
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.