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A captain briefed the FMS visual into sfo and had been cleared to a fix on the approach. Meanwhile, a new ATIS was issued and the captain did not notice the reduction in visibility which precluded the use of this particular approach.
| Attributes | |
| ACN | 458641 |
| Time | |
| Date | 199912 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : sfo.vor |
| State Reference | CA |
| Altitude | msl bound lower : 0 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : o90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach |
| Route In Use | approach : charted visual arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 180 flight time total : 14500 flight time type : 4000 |
| ASRS Report | 458641 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : multi engine pilot : commercial |
| Events | |
| Anomaly | inflight encounter other non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Weather Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
The copilot and I briefed the FMS visual approach runway 28R for san francisco. We noted on the ATIS that sfo visibility was 5 mi. This approach requires 5 mi of visibility and a 2100 ft ceiling. (There was no ceiling reported on the ATIS.) as we neared trdow intersection (a fix on the FMS visual approach on the sfo 095 degree radial 19 DME), we were asked if we had the new ATIS information. The copilot and I obtained ATIS information and informed bay approach. We were then cleared for the FMS bridge visual approach to runway 28R in sfo. Our flight landed on runway 28R without incident and we taxied to the gate. After we completed the parking checklist, I happened to notice that the visibility on the new ATIS had decreased to 4 mi. We flew the FMS bridge visual approach with inadequate reported visibility. The factors that affected this error: 1) approach expectancy. We had briefed the FMS visual approach and had been cleared to trdow intersection (a published fix on the approach path runway 28R). 2) when flying a 'visual approach' we don't incorporate visibility requirements into our mind set. After all, it is a 'visual approach.' 3) not paying close enough attention to new ATIS information. We missed the reduction in visibility.
Original NASA ASRS Text
Title: A CAPT BRIEFED THE FMS VISUAL INTO SFO AND HAD BEEN CLRED TO A FIX ON THE APCH. MEANWHILE, A NEW ATIS WAS ISSUED AND THE CAPT DID NOT NOTICE THE REDUCTION IN VISIBILITY WHICH PRECLUDED THE USE OF THIS PARTICULAR APCH.
Narrative: THE COPLT AND I BRIEFED THE FMS VISUAL APCH RWY 28R FOR SAN FRANCISCO. WE NOTED ON THE ATIS THAT SFO VISIBILITY WAS 5 MI. THIS APCH REQUIRES 5 MI OF VISIBILITY AND A 2100 FT CEILING. (THERE WAS NO CEILING RPTED ON THE ATIS.) AS WE NEARED TRDOW INTXN (A FIX ON THE FMS VISUAL APCH ON THE SFO 095 DEG RADIAL 19 DME), WE WERE ASKED IF WE HAD THE NEW ATIS INFO. THE COPLT AND I OBTAINED ATIS INFO AND INFORMED BAY APCH. WE WERE THEN CLRED FOR THE FMS BRIDGE VISUAL APCH TO RWY 28R IN SFO. OUR FLT LANDED ON RWY 28R WITHOUT INCIDENT AND WE TAXIED TO THE GATE. AFTER WE COMPLETED THE PARKING CHKLIST, I HAPPENED TO NOTICE THAT THE VISIBILITY ON THE NEW ATIS HAD DECREASED TO 4 MI. WE FLEW THE FMS BRIDGE VISUAL APCH WITH INADEQUATE RPTED VISIBILITY. THE FACTORS THAT AFFECTED THIS ERROR: 1) APCH EXPECTANCY. WE HAD BRIEFED THE FMS VISUAL APCH AND HAD BEEN CLRED TO TRDOW INTXN (A PUBLISHED FIX ON THE APCH PATH RWY 28R). 2) WHEN FLYING A 'VISUAL APCH' WE DON'T INCORPORATE VISIBILITY REQUIREMENTS INTO OUR MIND SET. AFTER ALL, IT IS A 'VISUAL APCH.' 3) NOT PAYING CLOSE ENOUGH ATTN TO NEW ATIS INFO. WE MISSED THE REDUCTION IN VISIBILITY.
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.