37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 190642 |
Time | |
Date | 199110 |
Day | Thu |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | atc facility : srp airport : phx |
State Reference | AZ |
Altitude | msl bound lower : 12000 msl bound upper : 16000 |
Environment | |
Flight Conditions | Mixed |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zab tower : dfw |
Operator | common carrier : air carrier |
Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
Navigation In Use | Other Other |
Flight Phase | descent : approach descent other landing other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : instrument pilot : commercial pilot : atp |
Experience | flight time last 90 days : 160 flight time total : 10000 flight time type : 1500 |
ASRS Report | 190642 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : commercial pilot : instrument pilot : atp pilot : flight engineer |
Experience | flight time last 90 days : 180 flight time total : 13000 flight time type : 3000 |
ASRS Report | 190979 |
Events | |
Anomaly | aircraft equipment problem : less severe altitude deviation : crossing restriction not met non adherence : clearance |
Independent Detector | other flight crewa |
Resolutory Action | flight crew : overcame equipment problem |
Consequence | Other |
Supplementary | |
Primary Problem | Aircraft |
Air Traffic Incident | Pilot Deviation other |
Narrative:
Albuquerque control gave us to cross tonto at 12000 ft. At 16000 ft and 8 NM FMC from tonto, the controller asked us if we would make the restriction. We told him yes, telling him we still had 8 mi to go on the computer (FMC). He told us that we were only 3 mi from tonto instead of 8 mi. We passed tonto at 12000 ft reference the FMC. Supplemental information from acn 190979: after takeoff (100 ft or less) from den 35L the tat/sat indicator went blank. Automatic throttles started reducing power which was wrong. Disconnected automatic throttle and set estimated takeoff power. This malfunction was a 'seat- of-the-pants' thing. I did not know what was wrong until much later during climb out. Denver WX, en route WX and phx WX were all severe clear or I would have returned to den. I elected to continue to phx which is also a maintenance station.
Original NASA ASRS Text
Title: FMC IN ACFT GAVE ERRONEOUS POS. FLC MISSED XING FIX.
Narrative: ALBUQUERQUE CTL GAVE US TO CROSS TONTO AT 12000 FT. AT 16000 FT AND 8 NM FMC FROM TONTO, THE CTLR ASKED US IF WE WOULD MAKE THE RESTRICTION. WE TOLD HIM YES, TELLING HIM WE STILL HAD 8 MI TO GO ON THE COMPUTER (FMC). HE TOLD US THAT WE WERE ONLY 3 MI FROM TONTO INSTEAD OF 8 MI. WE PASSED TONTO AT 12000 FT REF THE FMC. SUPPLEMENTAL INFO FROM ACN 190979: AFTER TKOF (100 FT OR LESS) FROM DEN 35L THE TAT/SAT INDICATOR WENT BLANK. AUTO THROTTLES STARTED REDUCING PWR WHICH WAS WRONG. DISCONNECTED AUTO THROTTLE AND SET ESTIMATED TKOF PWR. THIS MALFUNCTION WAS A 'SEAT- OF-THE-PANTS' THING. I DID NOT KNOW WHAT WAS WRONG UNTIL MUCH LATER DURING CLBOUT. DENVER WX, ENRTE WX AND PHX WX WERE ALL SEVERE CLR OR I WOULD HAVE RETURNED TO DEN. I ELECTED TO CONTINUE TO PHX WHICH IS ALSO A MAINT STATION.
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.