The FAA published two airworthiness directives this week that affect the Piper general aviation fleet. According to a report at AVweb.com, a final rule published on Monday affects 3,100 Piper Comanches, requiring inspections of the stabilator horn assembly, at a cost of about $1,000 per airplane. If the assembly needs to be replaced, it would cost another $1,600. Failure of the stabilator horn could lead to a loss of pitch control in flight, the FAA said. A proposed rule published on Tuesday affects about 1,000 Piper twins, which supersedes an existing AD that requires repetitive inspections of the exhaust system.
Janice Wood is editor of General Aviation News.