FlyerTalk Forums - View Single Post - ARCHIVE: LFBU / DODU: Space-available, counter, kiosk, and online upgrade (consol)
Old Jan 18, 2011 | 5:13 am
  #194  
Microwave
Moderator: American AAdvantage, Signatures
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Originally Posted by NWAMileageSlave
You were the beneficiary of a Load Based First Class Upgrade or LBFU.
At the risk of being nit-picky, the term is Load Factor Based Upgrade, or LFBU. They aren't necessarily first class upgrades, as they can be offered from Y to J on 3-class or international flights. Sources: Upgrades (AA) page on the FlyerGuide wiki and the AAdvantage FT forum thread LFBU: Non-elite, space-available, counter and kiosk upgrades (consolidated).

I have alerted mods for a potential merge.
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