[gchamonlive]

indeed, it would have been clearer to say 'increase the frequency of inspection'

[4cao]

My bad, I could have worded it clearer: "have the parts inspected more often" would do, I think.

Alas, can't edit the comment anymore, and probably shouldn't anyway, considering the discussion it sparked.

[gchamonlive]

sorry for nitpicking, but as a non-native speaker I can understand the confusion