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Sfo controller described wake turbulence incident at 1800 ft as C560 was following heavy jet on final.
| Attributes | |
| ACN | 711705 |
| Time | |
| Date | 200609 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sfo.airport |
| State Reference | CA |
| Altitude | msl single value : 1800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tower : sfo.tower |
| Operator | general aviation : corporate |
| Make Model Name | Citation V |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : sfo.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller limited radar : 14 controller radar : 2 controller time certified in position1 : 6 controller time certified in position2 : 9 |
| ASRS Report | 711705 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Events | |
| Anomaly | inflight encounter : wake turbulence |
| Independent Detector | other controllera |
| Supplementary | |
| Problem Areas | ATC Human Performance Environmental Factor |
| Primary Problem | Ambiguous |
Narrative:
Local control cleared aircraft X to land runway 28R with 'caution wake turbulence.' no specific aircraft type; but I do remember it was heavy.' a min or so later; aircraft X reported severe wake turbulence encounter and stated a 90 degree roll occurred and it was the 'real deal.' I believe the expectation could have been further predicted by the local controller advising the aircraft of the type following.
Original NASA ASRS Text
Title: SFO CTLR DESCRIBED WAKE TURB INCIDENT AT 1800 FT AS C560 WAS FOLLOWING HVY JET ON FINAL.
Narrative: LCL CTL CLRED ACFT X TO LAND RWY 28R WITH 'CAUTION WAKE TURB.' NO SPECIFIC ACFT TYPE; BUT I DO REMEMBER IT WAS HVY.' A MIN OR SO LATER; ACFT X RPTED SEVERE WAKE TURB ENCOUNTER AND STATED A 90 DEG ROLL OCCURRED AND IT WAS THE 'REAL DEAL.' I BELIEVE THE EXPECTATION COULD HAVE BEEN FURTHER PREDICTED BY THE LCL CTLR ADVISING THE ACFT OF THE TYPE FOLLOWING.
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.