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Flight crew of large transport on visual approach to slc descending encountered traffic at approximately 10500. TCASII gave TA and RA. No TA.
| Attributes | |
| ACN | 189976 |
| Time | |
| Date | 199109 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : slc |
| State Reference | UT |
| Altitude | msl bound lower : 10500 msl bound upper : 10800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : slc |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other |
| Route In Use | approach : visual arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : flight engineer pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 225 flight time total : 15000 flight time type : 1800 |
| ASRS Report | 189976 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 9000 vertical : 300 |
| Supplementary | |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
At 11000 ft on vector to visual pattern runway 16R slc, cleared to descend to 9000. No traffic advisory given. Upon descent through about 10800 TCASII issued a TA, at about 10600 an RA. Saw aircraft about same time at 12 O'clock, slightly low. ATC said he was at 10500. I feel if everyone is going to have to spend good money on mode C transponders, we should get a TA prior to being cleared through a known VFR's altitude. I realize this is not legally required. TCASII is a good system. This is what it's for and it works. This occurred above the slc TCA.
Original NASA ASRS Text
Title: FLC OF LGT ON VISUAL APCH TO SLC DSNDING ENCOUNTERED TFC AT APPROX 10500. TCASII GAVE TA AND RA. NO TA.
Narrative: AT 11000 FT ON VECTOR TO VISUAL PATTERN RWY 16R SLC, CLRED TO DSND TO 9000. NO TFC ADVISORY GIVEN. UPON DSCNT THROUGH ABOUT 10800 TCASII ISSUED A TA, AT ABOUT 10600 AN RA. SAW ACFT ABOUT SAME TIME AT 12 O'CLOCK, SLIGHTLY LOW. ATC SAID HE WAS AT 10500. I FEEL IF EVERYONE IS GOING TO HAVE TO SPEND GOOD MONEY ON MODE C TRANSPONDERS, WE SHOULD GET A TA PRIOR TO BEING CLRED THROUGH A KNOWN VFR'S ALT. I REALIZE THIS IS NOT LEGALLY REQUIRED. TCASII IS A GOOD SYS. THIS IS WHAT IT'S FOR AND IT WORKS. THIS OCCURRED ABOVE THE SLC TCA.
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.