Just finished up SFO<->PTY premium MR.

All miles are correct as well as bonuses and EQM, but wondered why the D/I paid business legs show up as "C" in the sAAvantage statement? I thought C was a upgrade class code?

AADV BONUS MILES PROMO - FIRST & BUSINESS 6/17/16 0 1,000 1,000
AMERICAN AIRLINES 0180 C LAX JFK 6/17/16 2,475 3,713 6,188
AADV BONUS MILES PROMO - FIRST & BUSINESS 6/17/16 0 500 500
AMERICAN AIRLINES 0155 F SFO LAX 6/17/16 337 669 1,006
500 Mile Min. Adjust - Non Elite Qualifying Miles 6/17/16 0 245 245
AMERICAN AIRLINES 0947 F JFK MIA 6/18/16 1,090 1,635 2,725
AADV BONUS MILES PROMO - FIRST & BUSINESS 6/18/16 0 500 500
AMERICAN AIRLINES 1021 C MIA PTY 6/18/16 1,151 1,727 2,878
AADV BONUS MILES PROMO - FIRST & BUSINESS 6/18/16 0 250 250
AADV BONUS MILES PROMO - FIRST & BUSINESS 6/19/16 0 500 500
AMERICAN AIRLINES 0064 F MIA JFK 6/19/16 1,090 1,635 2,725
AMERICAN AIRLINES 0960 C PTY MIA 6/19/16 1,151 1,727 2,878
AADV BONUS MILES PROMO - FIRST & BUSINESS 6/19/16 0 500 500
AMERICAN AIRLINES 0085 C JFK SFO 6/19/16 2,586 3,879 6,465
AADV BONUS MILES PROMO - FIRST & BUSINESS 6/19/16 0 6,000 6,000