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A B757 flight crew failed to advise jfk tower that it was necessary to reduce speed below the assigned airspeed.
| Attributes | |
| ACN | 443799 |
| Time | |
| Date | 199907 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : jfk.airport |
| State Reference | NY |
| Altitude | msl single value : 1500 |
| Environment | |
| Weather Elements | other |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : jfk.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument non precision |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : jfk.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument non precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| ASRS Report | 443799 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 443803 |
| Events | |
| Anomaly | inflight encounter : wake turbulence non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
When we contacted the tower they asked us to maintain 170 KTS to cri VOR. We then began to increase to 170 KTS when we encountered the wake from the B747. After flying out of the wake we never did get back up to 170 KTS. The tower asked our speed and he was 'displeased' with our failure to advise him in a timely manner that we were not at 170 KTS.
Original NASA ASRS Text
Title: A B757 FLC FAILED TO ADVISE JFK TWR THAT IT WAS NECESSARY TO REDUCE SPD BELOW THE ASSIGNED AIRSPD.
Narrative: WHEN WE CONTACTED THE TWR THEY ASKED US TO MAINTAIN 170 KTS TO CRI VOR. WE THEN BEGAN TO INCREASE TO 170 KTS WHEN WE ENCOUNTERED THE WAKE FROM THE B747. AFTER FLYING OUT OF THE WAKE WE NEVER DID GET BACK UP TO 170 KTS. THE TWR ASKED OUR SPD AND HE WAS 'DISPLEASED' WITH OUR FAILURE TO ADVISE HIM IN A TIMELY MANNER THAT WE WERE NOT AT 170 KTS.
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.