37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 351260 |
Time | |
Date | 199610 |
Day | Sat |
Local Time Of Day | 1801 To 2400 |
Place | |
Locale Reference | airport : sfo |
State Reference | CA |
Altitude | msl bound lower : 11000 msl bound upper : 12000 |
Environment | |
Flight Conditions | VMC |
Light | Night |
Aircraft 1 | |
Operator | common carrier : air carrier |
Make Model Name | B757-200 |
Operating Under FAR Part | Part 121 |
Navigation In Use | Other Other |
Flight Phase | descent other |
Route In Use | arrival other arrival star : star enroute airway : oak |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | other other : other pilot : commercial pilot : flight engineer pilot : instrument pilot : atp |
Experience | flight time last 90 days : 140 flight time total : 7770 flight time type : 740 |
ASRS Report | 351260 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : instrument pilot : commercial |
Events | |
Anomaly | altitude deviation : undershoot 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:
Crossing altitude of 11000 ft given. Programmed in FMC. Captain (PNF) put in 335 KTS descent speed. Due to high tailwinds, crossing could not be made. To prevent, put in estimated tailwinds and a lower initial descent speed to give better projection. Descent clearance needs to be as soon as possible to allow for planning.
Original NASA ASRS Text
Title: FLC OF A B757-200 FAILED TO MAKE A XING DSCNT ALT AND UNDERSHOT DUE TO HIGH TAILWINDS AND NOT USING A SLOWER DSCNT AIRSPD TO COMPENSATE FOR THE TAILWIND!
Narrative: XING ALT OF 11000 FT GIVEN. PROGRAMMED IN FMC. CAPT (PNF) PUT IN 335 KTS DSCNT SPD. DUE TO HIGH TAILWINDS, XING COULD NOT BE MADE. TO PREVENT, PUT IN ESTIMATED TAILWINDS AND A LOWER INITIAL DSCNT SPD TO GIVE BETTER PROJECTION. DSCNT CLRNC NEEDS TO BE AS SOON AS POSSIBLE TO ALLOW FOR PLANNING.
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.