 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
ZDV controller required to initiate interfacility coordination with ZLC to turn a conflicting en route air carrier with another air carrier pointed out to ZLC from ZLA.
| Attributes | |
| ACN | 513583 |
| Time | |
| Date | 200106 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : pga.vor |
| State Reference | AZ |
| Altitude | msl single value : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv.artcc tower : mroc.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdv.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 8 controller time certified in position1 : 8 |
| ASRS Report | 513583 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 18000 vertical : 0 |
| Supplementary | |
| Problem Areas | ATC Human Performance Airspace Structure |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure Operational Error |
Narrative:
ZLC handed aircraft Y to ZDV 24 at FL370 eastbound. Next, ZLC 33 hands aircraft X to ZDV 24 at FL370 sebound. Conflict 3 mi inside sector 24 airspace. ZLC 33 had a pointout from ZLA (ZLA 32) on aircraft Y, but had to be told by ZDV 24 to turn aircraft X behind the aircraft Y. ZLC 33, having taken the pointout, had responsibility for the separation, but did not take care of it. The ZDV 24 controller had ZLC 33 turn aircraft X 40 degrees right. After aircraft X checked on, the ZDV 24 controller assigned a 170 degree heading, which resulted in about 7 mi separation. The large turn could have been prevented if ZLC 33 had started separation at the time of the pointout.
Original NASA ASRS Text
Title: ZDV CTLR REQUIRED TO INITIATE INTERFAC COORD WITH ZLC TO TURN A CONFLICTING ENRTE ACR WITH ANOTHER ACR POINTED OUT TO ZLC FROM ZLA.
Narrative: ZLC HANDED ACFT Y TO ZDV 24 AT FL370 EBOUND. NEXT, ZLC 33 HANDS ACFT X TO ZDV 24 AT FL370 SEBOUND. CONFLICT 3 MI INSIDE SECTOR 24 AIRSPACE. ZLC 33 HAD A POINTOUT FROM ZLA (ZLA 32) ON ACFT Y, BUT HAD TO BE TOLD BY ZDV 24 TO TURN ACFT X BEHIND THE ACFT Y. ZLC 33, HAVING TAKEN THE POINTOUT, HAD RESPONSIBILITY FOR THE SEPARATION, BUT DID NOT TAKE CARE OF IT. THE ZDV 24 CTLR HAD ZLC 33 TURN ACFT X 40 DEGS R. AFTER ACFT X CHKED ON, THE ZDV 24 CTLR ASSIGNED A 170 DEG HDG, WHICH RESULTED IN ABOUT 7 MI SEPARATION. THE LARGE TURN COULD HAVE BEEN PREVENTED IF ZLC 33 HAD STARTED SEPARATION AT THE TIME OF THE POINTOUT.
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.