For those who don’t have a degree in helicopterology, or a brother who does: A chip detector is not a person who goes straight for the snack aisle in the supermarket, but a device that detects ferromagnetic particles (i.e. metal chips from a gear) in the engine’s oil, to provide an early warning of an impending engine failure.

Great, now I’m thinking about potato chips. I’m glad I don’t have any in the house! I find it almost impossible to control myself once I start …