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Reported situation of a possible procedure problem of a missed approach from runway 35R turning into opposite direction traffic on approach to runway 26.
| Attributes | |
| ACN | 374363 |
| Time | |
| Date | 199707 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : den |
| State Reference | CO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : den tower : ilg |
| Operator | common carrier : air carrier |
| Make Model Name | Beech 1900 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | landing : missed approach |
| Route In Use | departure other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | descent : approach |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Experience | controller radar : 13 flight time total : 2000 |
| ASRS Report | 374363 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
At approximately XA00 I was working local 2 at ZDV working aircraft landing runways 35L&right. At the time LLWAS was reporting 50 KT loss microbursts on final to runway 35L and I was busy working several missed approachs on that runway. Several aircraft were landing runway 26 and runway 35R. Air carrier X made a right turn eastbound into opposite traffic on final to runway 26. I immediately told the aircraft to turn back northbound and I believe no separation was lost. The aircraft told me he was executing the published missed approach, since I was busy and he could not get through to me. The problem I see here is since we often run converging ILS/visual approachs to converging runways such as runway 35R and runway 26, runway 7 and runway 16, a lost communication scenario or another situation as happened to me may happen again and could be catastrophic. A procedure must be put in place to prevent this scenario.
Original NASA ASRS Text
Title: RPTED SIT OF A POSSIBLE PROC PROB OF A MISSED APCH FROM RWY 35R TURNING INTO OPPOSITE DIRECTION TFC ON APCH TO RWY 26.
Narrative: AT APPROX XA00 I WAS WORKING LCL 2 AT ZDV WORKING ACFT LNDG RWYS 35L&R. AT THE TIME LLWAS WAS RPTING 50 KT LOSS MICROBURSTS ON FINAL TO RWY 35L AND I WAS BUSY WORKING SEVERAL MISSED APCHS ON THAT RWY. SEVERAL ACFT WERE LNDG RWY 26 AND RWY 35R. ACR X MADE A R TURN EBOUND INTO OPPOSITE TFC ON FINAL TO RWY 26. I IMMEDIATELY TOLD THE ACFT TO TURN BACK NBOUND AND I BELIEVE NO SEPARATION WAS LOST. THE ACFT TOLD ME HE WAS EXECUTING THE PUBLISHED MISSED APCH, SINCE I WAS BUSY AND HE COULD NOT GET THROUGH TO ME. THE PROB I SEE HERE IS SINCE WE OFTEN RUN CONVERGING ILS/VISUAL APCHS TO CONVERGING RWYS SUCH AS RWY 35R AND RWY 26, RWY 7 AND RWY 16, A LOST COM SCENARIO OR ANOTHER SIT AS HAPPENED TO ME MAY HAPPEN AGAIN AND COULD BE CATASTROPHIC. A PROC MUST BE PUT IN PLACE TO PREVENT THIS SCENARIO.
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.