Gulfstream took the lead again in the annual AIN Product Support Survey, coming out ahead in both the newer and older (more than 10 years old) categories and also in the combined newer and older aircraft. Bombardier’s ratings for all models climbed over last year’s.

Although the company ranked low in the newer and older jet categories, its improved scores may reflect that it dropped a controversial program under which customers flying older aircraft had to pay extra fees for product support of classic aircraft. The model with the largest percentage growth in rankings compared to last year is Bombardier’s newer Learjets, up 7.61 percent, to 7.95.