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B737-800 flight crew reported being cleared for the visual approach to runway 28R at sfo then learned later they were actually cleared for the FMS bridge visual runway 28R. Between janyy and samul the flying first officer descended to 1200 feet causing a low altitude alert from ATC and a climb back to 1500 feet.
| Attributes | |
| ACN | 1308922 |
| Time | |
| Date | 201511 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | SFO.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy |
Narrative:
We were told to expect the FMS bridge visual (RNAV-F) rwy 28R to sfo outside of archi. We were cleared for the visual approach to 28R. Both the captain and I heard cleared for the visual approach to 28R; not cleared FMS bridge visual (RNAV-F) rwy 28R. I was flying pilot and told the captain I was going to hand fly the approach since it was VFR and we had the bridge and the airport in sight. I disengaged the autopilot and started a gradual descent. Somewhere after janyy the captain said I was low and I initiated a climb (I saw 1200 feet) to 1500 feet. Right after I started the climb we got a low altitude alert from tower. We landed at sfo.we should have verified the clearance of 'visual approach' versus the FMS bridge visual rwy 28R. Since the FMS approach is an instrument approach versus a visual approach. Use VNAV/LNAV until established on straight in final. Better scan of instruments (altimeter) on a visual approach. Not hand flying an unfamiliar approach even in severe clear conditions.
Original NASA ASRS Text
Title: B737-800 flight crew reported being cleared for the visual approach to Runway 28R at SFO then learned later they were actually cleared for the FMS BRIDGE VISUAL Runway 28R. Between JANYY and SAMUL the flying First Officer descended to 1200 feet causing a low altitude alert from ATC and a climb back to 1500 feet.
Narrative: We were told to expect the FMS Bridge Visual (RNAV-F) Rwy 28R to SFO outside of ARCHI. We were cleared for the visual approach to 28R. Both the Captain and I heard cleared for the Visual approach to 28R; not cleared FMS Bridge Visual (RNAV-F) Rwy 28R. I was flying pilot and told the captain I was going to hand fly the approach since it was VFR and we had the bridge and the airport in sight. I disengaged the autopilot and started a gradual descent. Somewhere after JANYY the captain said I was low and I initiated a climb (I saw 1200 feet) to 1500 feet. Right after I started the climb we got a low altitude alert from Tower. We landed at SFO.We should have verified the clearance of 'Visual approach' versus the FMS Bridge Visual Rwy 28R. Since the FMS approach is an instrument approach versus a visual approach. Use VNAV/LNAV until established on straight in final. Better scan of instruments (altimeter) on a visual approach. Not hand flying an unfamiliar approach even in severe clear conditions.
Data retrieved from NASA's ASRS site 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.