Did I miss something? - the Secondary Line max is all around the 70hr mark... and it's a 4 week month...

MEM MD11 CA 71:39
FO 68:51
ANC MD11 CA 67:04
FO 67:37
LAX MD11 CA 70:22
FO 70:24
MEM A300 CA 67:00
FO 70:00
HKG A300 CA 77:00
FO 77:00
MEM B757 CA 79:59
FO 79:59
MEM B727 CA 60:59
FO 63:59
SO 60:59