I would understand the rest soon enough.

Chapter 11 — What Voss Did

It took the investigators the next two days to lay out what had actually happened on that airplane, and it was worse than sabotage.

It was arithmetic.

Richard Voss, as Director of Flight Operations, had for years been quietly falsifying maintenance records and signing off on counterfeit aerospace parts — cheap, uncertified components swapped in for the real ones, the difference in cost skimmed off into accounts that led back to him.

Millions, over time.