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CL65 crew had a track deviation after the approach controller changed runways three times in catii conditions at den.
| Attributes | |
| ACN | 577802 |
| Time | |
| Date | 200303 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : d01.tracon |
| State Reference | CO |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Turbulence Snow |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : d01.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 35l other |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 200 flight time total : 3000 flight time type : 300 |
| ASRS Report | 577802 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | inflight encounter : weather inflight encounter other non adherence : clearance |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance flight crew : returned to original clearance flight crew : became reoriented flight crew : overrode automation |
| Supplementary | |
| Problem Areas | ATC Human Performance Weather Aircraft Maintenance Human Performance FAA |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| ATC Facility | procedure or policy : d01.tracon |
Narrative:
On approach to denver, WX went down fast. ATC told us to expect ILS runway 35L, and we set up the FMS. New ATIS suggested we might need catii to get in, so I became PF (I am the first officer, who does catii). ATC was talking a mi a min. Then, they told us to expect runway 34R ILS. We programmed the FMS again. Then they told us to go back to runway 35L ILS. We frantically set up the FMS for the third time. In the turbulence and vectors, I neglected to make the runway 35L localizer primary on my side, and (thus), lined up on runway 34R. ATC called us, we switched the localizer and landed uneventfully on runway 35L. This was a dumb mistake on my part, but ATC could help by not making so many changes when you're about to intercept the localizer. There were no traffic conflicts.
Original NASA ASRS Text
Title: CL65 CREW HAD A TRACK DEV AFTER THE APCH CTLR CHANGED RWYS THREE TIMES IN CATII CONDITIONS AT DEN.
Narrative: ON APCH TO DENVER, WX WENT DOWN FAST. ATC TOLD US TO EXPECT ILS RWY 35L, AND WE SET UP THE FMS. NEW ATIS SUGGESTED WE MIGHT NEED CATII TO GET IN, SO I BECAME PF (I AM THE FO, WHO DOES CATII). ATC WAS TALKING A MI A MIN. THEN, THEY TOLD US TO EXPECT RWY 34R ILS. WE PROGRAMMED THE FMS AGAIN. THEN THEY TOLD US TO GO BACK TO RWY 35L ILS. WE FRANTICALLY SET UP THE FMS FOR THE THIRD TIME. IN THE TURB AND VECTORS, I NEGLECTED TO MAKE THE RWY 35L LOC PRIMARY ON MY SIDE, AND (THUS), LINED UP ON RWY 34R. ATC CALLED US, WE SWITCHED THE LOC AND LANDED UNEVENTFULLY ON RWY 35L. THIS WAS A DUMB MISTAKE ON MY PART, BUT ATC COULD HELP BY NOT MAKING SO MANY CHANGES WHEN YOU'RE ABOUT TO INTERCEPT THE LOC. THERE WERE NO TFC CONFLICTS.
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.