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B737 flight crew consider go around at 200 ft on visual approach to sfo runway 28L due to overtaking an HS25 on visual approach to runway 28R.
| Attributes | |
| ACN | 512856 |
| Time | |
| Date | 200105 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sfo.airport |
| State Reference | CA |
| Altitude | msl single value : 500 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | tower : sfo.tower artcc : zab.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : o90.tracon |
| Operator | Other |
| Make Model Name | Hawker Horizon (Raytheon) |
| Operating Under FAR Part | other : unk |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 512856 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 512656 |
| Events | |
| Anomaly | non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : landed as precaution flight crew : took precautionary avoidance action |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance Airport |
| Primary Problem | ATC Human Performance |
| Situations | |
| ATC Facility | procedure or policy : o90.tracon |
Narrative:
Flying the tip toe visual to runway 28L at sfo. First officer was PF. I (captain) was PNF. ATC told us to maintain visual with a hawker jet which was well above and slightly ahead on the visual for runway 28R. We were assigned to maintain speed 160 KTS to the san mateo bridge. Thereafter, we immediately started slowing to target speed of 140 KTS and flaps 30 degrees. Around 500 ft AGL, it became apparent that we were catching up the hawker. By 200 ft AGL, the hawker was slightly behind our right wing, but we always did have him in sight and maintained visual. My question, and concern, is that we weren't sure if it's wrong to come abeam, and slightly pass, the other aircraft on short final, as long as we maintain visual contact. ATC said nothing to us during this time or after. I considered a go around but thought it was unnecessary, or possibly more hazardous, since we were exactly on profile and the hawker was also lined up with his runway. I told the first officer to slow as much and as quickly as possible so as not to pass. He did, but we reached target and still slowly caught up to the hawker.
Original NASA ASRS Text
Title: B737 FLC CONSIDER GAR AT 200 FT ON VISUAL APCH TO SFO RWY 28L DUE TO OVERTAKING AN HS25 ON VISUAL APCH TO RWY 28R.
Narrative: FLYING THE TIP TOE VISUAL TO RWY 28L AT SFO. FO WAS PF. I (CAPT) WAS PNF. ATC TOLD US TO MAINTAIN VISUAL WITH A HAWKER JET WHICH WAS WELL ABOVE AND SLIGHTLY AHEAD ON THE VISUAL FOR RWY 28R. WE WERE ASSIGNED TO MAINTAIN SPD 160 KTS TO THE SAN MATEO BRIDGE. THEREAFTER, WE IMMEDIATELY STARTED SLOWING TO TARGET SPD OF 140 KTS AND FLAPS 30 DEGS. AROUND 500 FT AGL, IT BECAME APPARENT THAT WE WERE CATCHING UP THE HAWKER. BY 200 FT AGL, THE HAWKER WAS SLIGHTLY BEHIND OUR R WING, BUT WE ALWAYS DID HAVE HIM IN SIGHT AND MAINTAINED VISUAL. MY QUESTION, AND CONCERN, IS THAT WE WEREN'T SURE IF IT'S WRONG TO COME ABEAM, AND SLIGHTLY PASS, THE OTHER ACFT ON SHORT FINAL, AS LONG AS WE MAINTAIN VISUAL CONTACT. ATC SAID NOTHING TO US DURING THIS TIME OR AFTER. I CONSIDERED A GAR BUT THOUGHT IT WAS UNNECESSARY, OR POSSIBLY MORE HAZARDOUS, SINCE WE WERE EXACTLY ON PROFILE AND THE HAWKER WAS ALSO LINED UP WITH HIS RWY. I TOLD THE FO TO SLOW AS MUCH AND AS QUICKLY AS POSSIBLE SO AS NOT TO PASS. HE DID, BUT WE REACHED TARGET AND STILL SLOWLY CAUGHT UP TO THE HAWKER.
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.