by Joe Godfrey | Mar 18, 2021 | SavvyAnalysis Puzzlers
I heard a weathercaster dig up the old “In like a lion, out like a lamb” line recently in reference to the weather in March. As I write this we don’t know if this year’s “out” will be a lamb or something more fierce. But it got me...
by Joe Godfrey | Feb 16, 2021 | SavvyAnalysis Puzzlers
Part of the job of engine data analysis is separating relevant, useful information from red herrings. I always wondered why there were two definitions for red herrings; the first is a smoked fish and the second was something meant to distract from the main issue in an...
by Joe Godfrey | Jan 9, 2021 | SavvyAnalysis Puzzlers
This is part two of an article about sticky valves. Part one is here. The cliffhanger was a Cessna 182 with a wobbly trace in EGT 4 for the first 14 mins of ground ops. Your homework was to decide if it was a sticky valve or something else. Here’s the whole...
by Joe Godfrey | Dec 6, 2020 | SavvyAnalysis Puzzlers
It has been a while since we took a look at sticky valves. I’m not going to write about why valves stick and how to keep it from happening, although I have a great resource for that. Earlier this year Mike Busch wrote an article for AOPA Pilot called Why Valves...
by Joe Godfrey | Nov 13, 2020 | SavvyAnalysis Puzzlers
Recently a client submitted engine data with an erratic EGT trace. It always makes sense to check the connection first, but in this case it looked like a failing probe. When we reported this, he said that he suspected it failed because he hadn’t been flying much...
