Squawk of the Week

One fault, every Monday. Predict each reading before you see it, find the fault in as few readings as you can, then share your score.

I post the answer and the why on Thursday on Facebook and LinkedIn. Argue about it in the comments.

Want the full trainer?

The weekly puzzle is a short version of a real job. The trainer has whole systems, a logbook, a parts bill and a write-up at sign-off.