What is a"Delayed due to flight preparation"
My friends UA flight today from SEA to EWR is delayed for over 5 hourss due to an earlier flight "Delayed for 4 hours due to flight preparation"
What is this?
Im sure it isnt as simple as "We forgot to prepare the food for the flight" or finding an employee who can explain "Placing the small metal flap in to the buckle."?
But seriously...what is this?