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A320 PIC refuses takeoff clearance from sfo local controller behind a departing B757 due to insufficient wake turbulence spacing.
| Attributes | |
| ACN | 514558 |
| Time | |
| Date | 200106 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : sfo.airport |
| State Reference | CA |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : sfo.tower tower : aus.tower |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : sfo.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time type : 1042 |
| ASRS Report | 514558 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | non adherence : required legal separation non adherence : published procedure non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : took precautionary avoidance action |
| Consequence | faa : reviewed incident with flight crew other |
| Supplementary | |
| Problem Areas | ATC Human Performance Aircraft |
| Primary Problem | ATC Human Performance |
| Situations | |
| ATC Facility | procedure or policy : sfo.tower |
Narrative:
Tower controller behavior and attitude extremely unprofessional. We were cleared for takeoff behind a B757, without adequate wake turbulence separation (ie, less than 4 mi). In fact, the B757 had just lifted off when we received takeoff clearance. When I said we would need another 30 seconds, the tower controller said: 'you gotta be kidding.' he then directed us to clear the runway. While waiting for clearance back on the runway I noticed another incident of takeoff clearance being issued without adequate wake turbulence separation. This is an unsafe situation.
Original NASA ASRS Text
Title: A320 PIC REFUSES TKOF CLRNC FROM SFO LCL CTLR BEHIND A DEPARTING B757 DUE TO INSUFFICIENT WAKE TURB SPACING.
Narrative: TWR CTLR BEHAVIOR AND ATTITUDE EXTREMELY UNPROFESSIONAL. WE WERE CLRED FOR TKOF BEHIND A B757, WITHOUT ADEQUATE WAKE TURB SEPARATION (IE, LESS THAN 4 MI). IN FACT, THE B757 HAD JUST LIFTED OFF WHEN WE RECEIVED TKOF CLRNC. WHEN I SAID WE WOULD NEED ANOTHER 30 SECONDS, THE TWR CTLR SAID: 'YOU GOTTA BE KIDDING.' HE THEN DIRECTED US TO CLR THE RWY. WHILE WAITING FOR CLRNC BACK ON THE RWY I NOTICED ANOTHER INCIDENT OF TKOF CLRNC BEING ISSUED WITHOUT ADEQUATE WAKE TURB SEPARATION. THIS IS AN UNSAFE SIT.
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.