This just sounds suspect to me. You mean out of a 180 day cruise (or however long it was), no jets broke except for 4 days? A true testament to your maintainers...or creative accounting.
Suspect? No we did have some miracle workers in Maintenance. We got the Estocin/Battle E because of them, and really if you ask me, only them. Let's admit, that was one of the selling points of the hornet. Ease of maintenance...engine change in less than one hour. Hornet is easy to work on compared to the old workhorses of the past...F14, F4, A7 (and no that is not to interpreted in any bad way). That was on of the main selling points in decision of going with hornet.
Creative accounting? Yes i will admit this does happen more often then it should...Lot21's and the last four that rolled off the production line in fact. Also it's all about grooming the jets. Good gripes etc. When we swaped jets from 15 to 21's, those 21's were not in the greates of shape either. We weren't even close to FMC rate we had by time we cruised. So my opinion is it is totally dependant on the maintenance crew. Those kids work their a**es off for benefit of us and they don't get the appreciation they should.