Engines
Williams leads turbofans, Honeywell tops in t-props
In 2009 the annual Product Support Survey produced by NBAA Convention News’ sister publication Aviation International News Williams Internati

In 2009 the annual Product Support Survey produced by NBAA Convention News’ sister publication Aviation International News Williams International keeps the top slot in turbofans and GE stays last, but otherwise almost all the deck gets shuffled. Among turboprop/turboshaft manufacturers, Honeywell remains on top and Turbomeca falls into last place.

Williams International retains the number-one spot among turbofan manufacturers for the quality of product support it provides, and Rolls-Royce remains in the number-two spot.