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Old Jul 18, 2011 | 10:29 pm
  #7  
rehoult
 
Join Date: Oct 2008
Location: YYC
Posts: 4,035
Originally Posted by yul7075
LM Upgrade is processed in the DCS (Departure Control System) and never changes the booking Class on the PNR
the seat is taken from the highest J inventory

R is exclusively reserved for eupgrades
Don't think so. Anytime I've done an LMU I've seen the fare code change when I go an view the itinerary on AC.com. I'm not saying that LMU is taken from R space, just that the PNR is changed to say R when an LMU is purchased.
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