I disagree.I wonder how the USAF and allied airforces fell about the cancelled F-35 alternative engine from GE (F136)? As a side note, problems with a high performance engine like P&W’s F135 are a good example of why China’s J-20 isn’t likely to see the long promised high performance WS-15 anytime soon.
For all we know the F136 reliability could have been better, the same or worse than the F135 engine.
Then you’d have to have two separate maintenance centres, two groups of workers, two spare parts and supply chains, etc.
Two engines also means smaller production runs, which usually equates to higher per unit cost.
The DefenseNews article is suggesting that one of the two reported problems is due to the maintenance centre not processing the engines as quickly as projected (two different engines, twice the potential delays?).
And secondly a ‘small number’ of engines have a problem with rotor blade coatings.
As for the rest of the article quoting the ‘unnamed defense official’, how much of that is a beat up?