Originally Posted by
insty66
Wherever we could, CSAS BIT was carried out post sortie, so the loss rate would probably be lower than you'd think. I always thought it was overtested but getting the intervals stretched out was never considered
Pre flight CSAS BITE fail did cost a lot of sorties in the past. Later, IIRC it was reduced from every pre flight to every 10th. As you say, doing it post flight 9 was better. However, you could always bank on getting a jet that some ****er had forgotten to check!
OAP