Question for Paul McBride, the General Aviation News engine expert: In your recent column, “The fall-out from not doing due diligence,” you mentioned narrow deck and wide deck. My question: “Is a narrow deck an angle valve 540 and a wide deck a parallel valve 540? “
flying
Just the facts
While the general aviation industry hailed the passage of the FAA’s final Modernization of Special Airworthiness Certification (MOSAIC) rule in July 2025, many still remain confused about what it really means. To help increase understanding, the FAA recently released a MOSAIC Fact Sheet that breaks down the important dates, the changes, and what is coming later in 2026.
FAA investigating Lycoming IO-360 shutdowns
An airworthiness concern sheet was published after multiple reports were received indicating uncommanded engine shutdowns on aircraft with IO-360 engines using AVStar manufactured vertical and horizontal mounted fuel servos when the throttle was brought back toward idle.
Deadline for GA Awards nominations extended
The deadline was extended due to this year’s government shutdown.
Loss of control leads to ground loop
Probable Cause: The pilot’s failure to maintain directional control during landing in crosswind conditions, which resulted in a ground loop on the runway.
Picture of the Day: On Dasher, on Dancer…
Christian Sanchez submitted this photo and note: “During the festive Christmas season, I brought my dog to the airport with me. Once my C150 was out of the hangar, she eagerly settled down beneath one of the wings (her favorite spot). Sporting a pair of antlers myself, I thought it would be amusing to take a playful photo of her as my personal ‘reindog.'”
When good is better than best
The Grumman F6F Hellcat stands out as the U.S. fighter that downed more Japanese warplanes than any other Allied naval aircraft in World War II. Yet the Hellcat’s capabilities, as measured in speed, were always in the shadow of the racy Vought F4U Corsair.
AOPA, GAMA make list of top lobbyists
In its annual list of Top Lobbyists in 2025, The Hill included Aircraft Owners and Pilots Association Senior Vice President, Government Affairs & Advocacy Jim Coon and Paul Feldman, Vice President of Government Affairs for the General Aviation Manufacturers Association.
11,000 and counting…
First deliveries of the Cirrus SR Series, which includes the SR20, SR22, and SR22T, were in 1999 and has been the best-selling high-performance single-engine piston aircraft for more than two decades.