MD80 captain is informed after taxi that he needs to burn down to maximum takeoff weight prior to de...

Narrative:

Planned fuel 36.4. On taxi out; ACARS message received from dispatch 'hey guys sounds like you will be overweight by 200 lbs. Can you do an additional taxi burn?' first officer acknowledged message. I requested the first officer contact load control to request an updated ZFW for planning purposes as the load closeout had not yet arrived. The load agent refused multiple requests to provide the ZFW on the radio. I advised tower 'working on the numbers; will advise when ready.' aircraft parked in T/O block with both engines set at N1 57 percent; ff at 3000 lbs/hr/eng. Finally a load closeout arrived showing ZFW at 113;796. Therefore; the taxi weight was 150.2 (legal; thank goodness). Fuel was burned down to 35.5. Takeoff weight at commencement of T/O roll is 149.3. When the flight plan arrived on ACARS; T/O fuel indicated 35.8. If that were true; the T/O weight would have been 149.6 (illegal). That was not what we actually had.

Original NASA ASRS Text

Title: MD80 Captain is informed after taxi that he needs to burn down to maximum takeoff weight prior to departure. This is accomplished but weight and balance message received after takeoff shows 300 pounds more fuel and an overweight takeoff.

Narrative: Planned fuel 36.4. On taxi out; ACARS message received from dispatch 'Hey guys sounds like you will be overweight by 200 lbs. Can you do an additional taxi burn?' First Officer acknowledged message. I requested the F/O contact load control to request an updated ZFW for planning purposes as the load closeout had not yet arrived. The load agent refused multiple requests to provide the ZFW on the radio. I advised tower 'working on the numbers; will advise when ready.' Aircraft parked in T/O block with both engines set at N1 57 percent; FF at 3000 lbs/hr/eng. Finally a load closeout arrived showing ZFW at 113;796. Therefore; the taxi weight was 150.2 (legal; thank goodness). Fuel was burned down to 35.5. Takeoff weight at commencement of T/O roll is 149.3. When the flight plan arrived on ACARS; T/O fuel indicated 35.8. IF that were true; the T/O weight would have been 149.6 (illegal). That was not what we actually had.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	913623
Time
Date	201010
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Procedural Weight And Balance

MD80 captain is informed after taxi that he needs to burn down to maximum takeoff weight prior to departure. This is accomplished but weight and balance message received after takeoff shows 300 pounds more fuel and an overweight takeoff.