The Altimeter Was “Well Within The Test Allowable Error At All Ranges.”
On November 27, 2022, at 1729 eastern standard time, a Mooney M20J, N201RF, was substantially damaged when it was involved in an accident near Gaithersburg, Maryland. The private pilot and passenger were seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations (CFR) Part 91 personal flight. Preliminary Automatic Dependent Surveillance - Broadcast (ADS-B) data revealed that the airplane departed Montgomery County Airpark (GAI), Gaithersburg, Maryland, on the morning of the accident and flew to Westchester County Airport (HPN), White Plains, New York. The accident occurred on the return flight to GAI while the airplane was operating