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B757, almost in landing flair, executes go around due to wake turbulence caused from landing B767 landing on parallel runway at sfo.
| Attributes | |
| ACN | 524002 |
| Time | |
| Date | 200108 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : sfo.airport |
| State Reference | CA |
| Altitude | agl single value : 35 |
| Aircraft 1 | |
| Controlling Facilities | tracon : o90.tracon tower : sfo.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | landing : go around |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : o90.tracon tower : sfo.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| 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 : atp |
| Experience | flight time last 90 days : 50 flight time total : 13000 flight time type : 2000 |
| ASRS Report | 524002 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne less severe inflight encounter : wake turbulence other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : executed go around flight crew : exited adverse environment flight crew : took precautionary avoidance action |
| Supplementary | |
| Problem Areas | Airport Flight Crew Human Performance Environmental Factor |
| Primary Problem | Environmental Factor |
Narrative:
Aircraft type is B757. We were cleared for the tip toe visual approach to runway 28L and advised of traffic flying the charted visual to runway 28R, an air carrier Y B767. The B767 was initially very slightly behind us, but because of a faster approach speed, passed us at approximately 1200 ft AGL. We landed slightly behind him. At approximately 30 ft AGL, our left wing dropped about 15-20 degrees with almost full left aileron to compensate. A go around was initiated. Touchdown occurred before go around thrust and increased pitch attitude took effect. We apparently encountered wake turbulence from the heavy aircraft on the parallel runway. I don't believe anyone involved did anything wrong, which highlights the question of the safety of sfo charted visual approachs when wake turbulence is considered.
Original NASA ASRS Text
Title: B757, ALMOST IN LNDG FLAIR, EXECUTES GAR DUE TO WAKE TURB CAUSED FROM LNDG B767 LNDG ON PARALLEL RWY AT SFO.
Narrative: ACFT TYPE IS B757. WE WERE CLEARED FOR THE TIP TOE VISUAL APCH TO RWY 28L AND ADVISED OF TFC FLYING THE CHARTED VISUAL TO RWY 28R, AN ACR Y B767. THE B767 WAS INITIALLY VERY SLIGHTLY BEHIND US, BUT BECAUSE OF A FASTER APCH SPD, PASSED US AT APPROX 1200 FT AGL. WE LANDED SLIGHTLY BEHIND HIM. AT APPROX 30 FT AGL, OUR L WING DROPPED ABOUT 15-20 DEGS WITH ALMOST FULL L AILERON TO COMPENSATE. A GAR WAS INITIATED. TOUCHDOWN OCCURRED BEFORE GAR THRUST AND INCREASED PITCH ATTITUDE TOOK EFFECT. WE APPARENTLY ENCOUNTERED WAKE TURB FROM THE HEAVY ACFT ON THE PARALLEL RWY. I DON'T BELIEVE ANYONE INVOLVED DID ANYTHING WRONG, WHICH HIGHLIGHTS THE QUESTION OF THE SAFETY OF SFO CHARTED VISUAL APCHS WHEN WAKE TURB IS CONSIDERED.
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.