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D01 controller expressed concern regarding conflict resulting from poor intrafac coordination during landing runway confign change.
| Attributes | |
| ACN | 626326 |
| Time | |
| Date | 200406 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : den.vor |
| State Reference | CO |
| Altitude | msl single value : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d01.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : d01.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : pikes |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller limited radar : 4 controller military : 4 controller radar : 17 controller supervisory : 2 |
| ASRS Report | 626326 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : traffic management |
| Events | |
| Anomaly | conflict : airborne less severe |
| Independent Detector | atc equipment : conflict alert aircraft equipment : tcas other controllera |
| Resolutory Action | controller : issued alert |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 24000 vertical : 800 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure |
Narrative:
Dia landing south. Departure was assigned a climb to FL230 on pikes 2 departure, ALS transition. Arrival was vectored off the STAR from the southwest to a 080 degree heading, putting it in conflict with the departure. Investigation revealed that the traffic management coordinator had instructed the approach sectors to change to a land north confign. The controllers complied and started vectoring to a north landing. Thus the arrival aircraft X was turned east for base leg. Those of us on departure sectors were not told of a flow change and were climbing normally into south confign airspace. The aircraft Y departure received a TCASII to stop climb and leveled until passing. The supervisor's log later declared (reported) the situation and 'normal handling' was used. Thus, no further action has been taken.
Original NASA ASRS Text
Title: D01 CTLR EXPRESSED CONCERN REGARDING CONFLICT RESULTING FROM POOR INTRAFAC COORD DURING LNDG RWY CONFIGN CHANGE.
Narrative: DIA LNDG S. DEP WAS ASSIGNED A CLB TO FL230 ON PIKES 2 DEP, ALS TRANSITION. ARR WAS VECTORED OFF THE STAR FROM THE SW TO A 080 DEG HDG, PUTTING IT IN CONFLICT WITH THE DEP. INVESTIGATION REVEALED THAT THE TFC MGMNT COORDINATOR HAD INSTRUCTED THE APCH SECTORS TO CHANGE TO A LAND N CONFIGN. THE CTLRS COMPLIED AND STARTED VECTORING TO A N LNDG. THUS THE ARR ACFT X WAS TURNED E FOR BASE LEG. THOSE OF US ON DEP SECTORS WERE NOT TOLD OF A FLOW CHANGE AND WERE CLBING NORMALLY INTO S CONFIGN AIRSPACE. THE ACFT Y DEP RECEIVED A TCASII TO STOP CLB AND LEVELED UNTIL PASSING. THE SUPVR'S LOG LATER DECLARED (RPTED) THE SIT AND 'NORMAL HANDLING' WAS USED. THUS, NO FURTHER ACTION HAS BEEN TAKEN.
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.