If I do a search for C availability for LHR-GIG via JFK for today Feb 3rd I get the following:

1 Connections

AA (BA) 6142 0 LHR
02/03/11
1:35 PM JFK
02/03/11
4:25 PM 777
Daily
76% / 72m Business - AAnytime Award J 7



AA () 255 0 JFK
02/03/11
10:30 PM GIG
02/04/11
11:45 AM 763
Daily
80% / 27m Business - AAnytime Award J 4
Business - Upgrade C 1

But the C availabilty shows as 0 when I just search JFK-GIG. What gives?