Article on Flight Global:-
(Snip)
Despite earlier assurances that Boeing would deliver the US Air Force's first 767-based KC-46A tanker by the end of this year, boom scraping issues and a slew of uncompleted test points may delay delivery until 2018, the head of its Air Mobility Command has revealed.
More than half way into testing, the USAF has discovered severe flaws on the tanker, known as “category 1 deficiencies”. Among the most glaring, the tip of its boom has on occasion struck receiver aircraft outside their refuelling slipways. Boeing engineers are working to fix the problem, but unless the issue is resolved it could delay a scheduled 1 December delivery, Gen Carlton Everhart said at the annual Air, Space and Cyber conference near Washington DC.
Hmm, that could put a dent in things...