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|
Attributes | |
ACN | 80111 |
Time | |
Date | 198801 |
Day | Mon |
Local Time Of Day | 1801 To 2400 |
Place | |
Locale Reference | atc facility : dqo |
State Reference | DE |
Altitude | msl bound lower : 24000 msl bound upper : 31000 |
Environment | |
Flight Conditions | VMC |
Light | Night |
Aircraft 1 | |
Controlling Facilities | artcc : zdc |
Operator | common carrier : air carrier |
Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
Flight Phase | cruise other descent other |
Route In Use | enroute airway : j8 |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : instrument pilot : flight engineer pilot : atp pilot : commercial |
Experience | flight time last 90 days : 75 flight time type : 1500 |
ASRS Report | 80111 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : atp pilot : cfi pilot : flight engineer |
Experience | flight time last 90 days : 250 flight time total : 3000 |
ASRS Report | 80117 |
Events | |
Anomaly | altitude deviation : crossing restriction not met inflight encounter : weather non adherence : clearance |
Independent Detector | other flight crewa |
Resolutory Action | none taken : anomaly accepted |
Consequence | Other |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
We were eastbound on J-8 to pails intersection. We had approximately 150K of tailwind in cruise (ie, very high ground speed). We were given clearance to cross 25 NM west of dupont VOR at 24000'. The clearance came very late based on our ground speed. We started an immediate descent (from 33000') and had only reached FL310 when 25 NM west of dupont. Center was aware of the problem and gave us much more advanced warning of future crossing restrictions. Since the flight was late in the evening and the winds had been high all day, I feel we could have been given more advanced warning of the first crossing restriction. I have seldom experienced such high tailwinds in flight, so perhaps I could have told center we wanted to start down early or perhaps tell them we would have a problem getting to the crossing altitude. Supplemental information from acn 80117: we were in cruise at FL330 with a 150 KT direct tailwind and didn't plan our descent correctly to meet altitude restriction. Supplemental information from acn 80490: we had a 150K tailwind and didn't plan our descent correctly.
Original NASA ASRS Text
Title: ACR-LGT ALT DEVIATION CROSSING RESTRICTION NOT MET.
Narrative: WE WERE EBND ON J-8 TO PAILS INTXN. WE HAD APPROX 150K OF TAILWIND IN CRUISE (IE, VERY HIGH GND SPD). WE WERE GIVEN CLRNC TO CROSS 25 NM W OF DUPONT VOR AT 24000'. THE CLRNC CAME VERY LATE BASED ON OUR GND SPD. WE STARTED AN IMMEDIATE DSCNT (FROM 33000') AND HAD ONLY REACHED FL310 WHEN 25 NM W OF DUPONT. CENTER WAS AWARE OF THE PROB AND GAVE US MUCH MORE ADVANCED WARNING OF FUTURE XING RESTRICTIONS. SINCE THE FLT WAS LATE IN THE EVENING AND THE WINDS HAD BEEN HIGH ALL DAY, I FEEL WE COULD HAVE BEEN GIVEN MORE ADVANCED WARNING OF THE FIRST XING RESTRICTION. I HAVE SELDOM EXPERIENCED SUCH HIGH TAILWINDS IN FLT, SO PERHAPS I COULD HAVE TOLD CENTER WE WANTED TO START DOWN EARLY OR PERHAPS TELL THEM WE WOULD HAVE A PROB GETTING TO THE XING ALT. SUPPLEMENTAL INFO FROM ACN 80117: WE WERE IN CRUISE AT FL330 WITH A 150 KT DIRECT TAILWIND AND DIDN'T PLAN OUR DSCNT CORRECTLY TO MEET ALT RESTRICTION. SUPPLEMENTAL INFO FROM ACN 80490: WE HAD A 150K TAILWIND AND DIDN'T PLAN OUR DSCNT CORRECTLY.
Data retrieved from NASA's ASRS site as of August 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.