 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
S56 approach controller fails to ensure visual separation between an LJ35 crossing a B757 flight path landing slc with incomplete phraseology application.
| Attributes | |
| ACN | 601226 |
| Time | |
| Date | 200311 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : slc.airport |
| State Reference | UT |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : s56.tracon |
| Operator | general aviation : corporate |
| Make Model Name | Learjet 35 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : s56.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller limited radar : 3 controller military : 4 controller radar : 11 |
| ASRS Report | 601226 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert aircraft equipment : tcas |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Supplementary | |
| Problem Areas | Environmental Factor Airspace Structure |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was final controller. My plan was to take a lear jet from downwind and cross 2 finals for runway 17. I issued traffic to the lear, who in time, reported aircraft in sight. I cleared the lear for visual approach, but failed to tell him to 'maintain visual separation from that traffic.' I have determined that slow, light traffic led me to be more lax with the situation. I noted a deficiency in my standard phraseology help to contribute to this error. To correct this, I am pushing myself to be less distraction, more focused on my position with many or no airplanes. Also, to adhere to strict standard phraseology which will indeed be of help and benefit.
Original NASA ASRS Text
Title: S56 APCH CTLR FAILS TO ENSURE VISUAL SEPARATION BTWN AN LJ35 XING A B757 FLT PATH LNDG SLC WITH INCOMPLETE PHRASEOLOGY APPLICATION.
Narrative: I WAS FINAL CTLR. MY PLAN WAS TO TAKE A LEAR JET FROM DOWNWIND AND CROSS 2 FINALS FOR RWY 17. I ISSUED TFC TO THE LEAR, WHO IN TIME, RPTED ACFT IN SIGHT. I CLRED THE LEAR FOR VISUAL APCH, BUT FAILED TO TELL HIM TO 'MAINTAIN VISUAL SEPARATION FROM THAT TFC.' I HAVE DETERMINED THAT SLOW, LIGHT TFC LED ME TO BE MORE LAX WITH THE SIT. I NOTED A DEFICIENCY IN MY STANDARD PHRASEOLOGY HELP TO CONTRIBUTE TO THIS ERROR. TO CORRECT THIS, I AM PUSHING MYSELF TO BE LESS DISTR, MORE FOCUSED ON MY POS WITH MANY OR NO AIRPLANES. ALSO, TO ADHERE TO STRICT STANDARD PHRASEOLOGY WHICH WILL INDEED BE OF HELP AND BENEFIT.
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.