Originally Posted by
phlwookie
Is this a maintenance delay due to the air conditioning packs. Remember that sometimes dead AC units blow hot air. Frankly, I wouldn't want to be on a plane that is too warm to board, even if it'll cool off closer to cruising altitude, as it'll be quite unpleasant at best, and potentially unhealthy for some, until it cools.
That said, flight status doesn't say maintenance:
ORD 500A T3 K15
MIA 24 D45 859A 1000A D14
GRU 735P
4ORD/OUT0450 OFF0509 *0509
2MIA/IN0840 *0740
7MIA/AUTO REACCOM DLY FLT COMPLETED SEE N*P1AA0233MIA17JUL *0904*CRCYMG
3MIA/ETD1120 ACL-DELAYS DURING A/C BAGGAGE AND CARGO LOADING *1008
2GRU/PRE2041 *1008
Nothing was said about maintenance, just that the cabin was too warm. Now sitting at gate trying to route around Cuban ATC delay.