B747-200 flight crew diverts due to fuel shortage.

Attributes
ACN	714171
Time
Date	200610
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : anc.airport
State Reference	AK
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B747-200
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 75 flight time total : 17000 flight time type : 7000
ASRS Report	714171
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : company policies non adherence : published procedure other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft Company Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

This trip was 12 hours late and we were alerted 30 mins late which caused a rushed departure. En route to anc we were over burning our flight plan by 25%. By the time we had reached latak intersection it was apparent we would not have enough fuel to reach destination and made a precautionary landing at rjcc. We learned that the default settings in the flight planning computer had been changed by a dispatcher resulting a 25% reduction in fuel burn figures. Even though the B747 fuel burn varies greatly with altitude and gross weight we might have caught the errors in the flight plan if we were not so fatigued and rushed. Default settings in the flight planning computers should be restr to management persons.

Original NASA ASRS Text

Title: B747-200 FLT CREW DIVERTS DUE TO FUEL SHORTAGE.

Narrative: THIS TRIP WAS 12 HRS LATE AND WE WERE ALERTED 30 MINS LATE WHICH CAUSED A RUSHED DEP. ENRTE TO ANC WE WERE OVER BURNING OUR FLT PLAN BY 25%. BY THE TIME WE HAD REACHED LATAK INTXN IT WAS APPARENT WE WOULD NOT HAVE ENOUGH FUEL TO REACH DEST AND MADE A PRECAUTIONARY LNDG AT RJCC. WE LEARNED THAT THE DEFAULT SETTINGS IN THE FLT PLANNING COMPUTER HAD BEEN CHANGED BY A DISPATCHER RESULTING A 25% REDUCTION IN FUEL BURN FIGURES. EVEN THOUGH THE B747 FUEL BURN VARIES GREATLY WITH ALT AND GROSS WT WE MIGHT HAVE CAUGHT THE ERRORS IN THE FLT PLAN IF WE WERE NOT SO FATIGUED AND RUSHED. DEFAULT SETTINGS IN THE FLT PLANNING COMPUTERS SHOULD BE RESTR TO MGMNT PERSONS.

Data retrieved from NASA's ASRS site as of January 2009 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.