by Joe Godfrey | Mar 19, 2025 | SavvyAnalysis Puzzlers
Continental has a CHT redline of 460º. Lycoming’s beefier head-to-barrel construction and sodium-filled valves push their CHT redline to 500º. If you had a detonation event that sent one cylinder’s CHT past the redline – you know exactly how long and...
by Joe Godfrey | Feb 13, 2025 | SavvyAnalysis Puzzlers
If you applied the scientific method to troubleshooting a GA engine, problem, you’d isolate one variable, make an adjustment, and assess the results. But it’s not practical. In the real world with a mechanic shortage it’s hard enough to get shop time...
by Mike Busch | Jan 16, 2025 | AOPA Pilot Magazine, Magazine Articles
Why don’t more A&Ps use engine monitor data for troubleshooting? The owner of a 2005 Cessna T182 was on vacation in Key West Florida. He decided to go up for a local sightseeing flight, but when he started the Lycoming TIO-540 engine it seemed to be running...
by Joe Godfrey | Jan 15, 2025 | SavvyAnalysis Puzzlers
It’s a January tradition to restate the mission of these Puzzlers. Our goal is to help pilots recognize data anomalies in real time to make good decisions about the safety of the flight, and help owners to make informed maintenance decisions. Last January Savvy began...
by Mike Busch | Dec 12, 2024 | AOPA Pilot Magazine, Magazine Articles
Who is allowed to perform maintenance on a certificated aircraft? The FAA rule that answers that question is 14 CFR 43.3—Persons authorized to perform maintenance, preventive maintenance, rebuilding, and alterations. This rule authorizes repair stations, A&P...
by Joe Godfrey | Dec 12, 2024 | SavvyAnalysis Puzzlers
The Wright Brothers were the first to fly on this date in 1903. Growing up in southwest Ohio, we didn’t give a lot of credence to those floating other versions of history. It was Orville and Wilbur at Kitty Hawk on December 17. Full stop. While we’re at...
by Mike Busch | Nov 14, 2024 | AOPA Pilot Magazine, Magazine Articles
Rethinking the business model for maintenance of GA aircraft. For more than a decade, my primary care physician was Dr. F. She was a wonderful doctor with a deep understanding of internal medicine and superb people skills who cared deeply for her patients. I felt...
by Joe Godfrey | Nov 14, 2024 | SavvyAnalysis Puzzlers
Recently, one of our clients upgraded his JPI 700 to a Garmin G3X. Our tech specialist Kurt changed the account configuration so the new data will use the correct parser. In his note to the client, Kurt said “you’ll now have a dizzying array of data...
by Mike Busch | Oct 17, 2024 | AOPA Pilot Magazine, Magazine Articles
The Perils of Trying to Fix a Problem You Haven’t Seen For Yourself The phrase “trust but verify” was made famous by U.S. President Ronald Reagan in December 1987 after the signing of the Intermediate-Range Nuclear Forces (INF) Treaty with Mikhail Gorbachev. The...
by Joe Godfrey | Oct 16, 2024 | SavvyAnalysis Puzzlers
Is there a mirror image for Occam’s Razor? Seems like if we have a name for relying on the least complex explanation for a scenario, then we ought to have one for the most outlandish, unlikely, logic-defying explanation. For instance, recently we got engine data...
