Originally Posted by Sir George Cayley
There
is value in discussing operations from wet or contaminaed rwys and the fact that coefficient of friction values derived by CFME do not read across to a/c performance tables. But........
For Thomson Fly read Britannia. And.....
How many times do Leed/Bradford inbounds divert to Manchester when the a/c is tasked for an early MAN departure and carrys snags that BY Eng want to fix on the line?
Methinks a few buses and a few moans cost less than the reposition and loss of maintenance time.
Especially if the crew are running up towards discretion.
Tactical planning 
Sir George Cayley
Don't they have an engineering team at Leeds Bradford?
Why is it always Wednesday the airline diverts?
Why is it always a Manchester crew when this happens?
With reference CVT I couldn't possibly comment.