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B737 crew intentionally crossed lgoon below the published crossing altitude on the visual approach to runway 16L at slc.
| Attributes | |
| ACN | 738999 |
| Time | |
| Date | 200705 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : slc.airport |
| State Reference | UT |
| Altitude | msl single value : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : s56.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 16l |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 11700 flight time type : 6000 |
| ASRS Report | 738999 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 12000 flight time type : 2000 |
| ASRS Report | 739000 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Chart Or Publication Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On visual approach to slc runway 16L; based arrival on ILS (runway 16L then 17; then 16L runways -- lots of changes). Then; told to cross lgoon 8000 ft; cleared visual runway 16L. Crossing altitude lgoon is 7500 ft AGL on approach plate. Since we were on the visual approach and were going above the GS; I started a slight descent to stay near the GS. Technically; we crossed 'lgoon' 200 to 300 ft low; which was above the GS but slightly below the 'cross lgoon at 8000 ft.' perhaps the controller could allow us to descend at altitudes on approach plate so we don't get high on 'mountain' approachs.
Original NASA ASRS Text
Title: B737 CREW INTENTIONALLY CROSSED LGOON BELOW THE PUBLISHED CROSSING ALT ON THE VISUAL APCH TO RWY 16L AT SLC.
Narrative: ON VISUAL APCH TO SLC RWY 16L; BASED ARR ON ILS (RWY 16L THEN 17; THEN 16L RWYS -- LOTS OF CHANGES). THEN; TOLD TO CROSS LGOON 8000 FT; CLRED VISUAL RWY 16L. CROSSING ALT LGOON IS 7500 FT AGL ON APCH PLATE. SINCE WE WERE ON THE VISUAL APCH AND WERE GOING ABOVE THE GS; I STARTED A SLIGHT DSCNT TO STAY NEAR THE GS. TECHNICALLY; WE CROSSED 'LGOON' 200 TO 300 FT LOW; WHICH WAS ABOVE THE GS BUT SLIGHTLY BELOW THE 'CROSS LGOON AT 8000 FT.' PERHAPS THE CTLR COULD ALLOW US TO DSND AT ALTS ON APCH PLATE SO WE DON'T GET HIGH ON 'MOUNTAIN' APCHS.
Data retrieved from NASA's ASRS site as of January 2009 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.