Originally Posted by
Basil
Don't know about the bus but on another type which I flew we could despatch with one winglet missing but not with two missing.
Only reason I can think of is just that the manufacturer hadn't bothered to have both missing certificated.
Or the penalty for one missing is small enough to allow use of certified data, but two missing is enough of an effect to incur larger or more complex penalties that may breach the spirit of the CDL process.