Originally Posted by kennedytower
Jet Blue does have spare aircraft around - but I don't think Boston is one of the cities where they are kept. I know JFK and FLL have at least one full time spare. Even the majors don't keep spares everywhere.
I know that they say they have spares. But it doesn't explain why 1014 JFK-BOS was delayed by 5 hours. Perhaps the spare was busy that day.