Flight crew of B757 receives revised weight and balance takeoff data after takeoff indicating an increase in ZFW. Flight crew must fly a revised altitude and mach to burn off fuel to achieve landing below maximum structural landing weight.

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Attributes
ACN	670837
Time
Date	200509
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mia.airport
State Reference	FL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 45 flight time total : 12800 flight time type : 2700
ASRS Report	670837
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : published procedure non adherence : far non adherence : company policies
Independent Detector	other other : 3
Resolutory Action	controller : issued new clearance
Consequence	Other
Supplementary
Problem Areas	Aircraft Company
Primary Problem	Company

Narrative:

After takeoff we received a message that the payload was 1700 pounds over planned. We saw that the weight and balance was showing an overweight landing was going to occur if we did not change the altitude and speed to increase the fuel burn en route. We received an update with a lower final altitude and at a faster mach. We landed with a weight of 208.9 pounds and rolled to the end of the runway safely.

Original NASA ASRS Text

Title: FLT CREW OF B757 RECEIVES REVISED WT AND BALANCE TKOF DATA AFTER TKOF INDICATING AN INCREASE IN ZFW. FLT CREW MUST FLY A REVISED ALT AND MACH TO BURN OFF FUEL TO ACHIEVE LNDG BELOW MAXIMUM STRUCTURAL LNDG WT.

Narrative: AFTER TKOF WE RECEIVED A MESSAGE THAT THE PAYLOAD WAS 1700 LBS OVER PLANNED. WE SAW THAT THE WT AND BALANCE WAS SHOWING AN OVERWT LNDG WAS GOING TO OCCUR IF WE DID NOT CHANGE THE ALT AND SPD TO INCREASE THE FUEL BURN ENRTE. WE RECEIVED AN UPDATE WITH A LOWER FINAL ALT AND AT A FASTER MACH. WE LANDED WITH A WT OF 208.9 LBS AND ROLLED TO THE END OF THE RWY SAFELY.

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.