The FAA issued a final Airworthiness Directive on Tuesday that will affect 23,643 airplanes in the Piper fleet, mainly PA-28 and PA-32 models in the Cherokee line. The AD, which was issued to clarify the requirements of an earlier AD issued in 1995, takes effect Aug. 15. It requires that owners or operators of airplanes equipped with oil-cooler hose assemblies that do not meet certain technical standard order (TSO) requirements must have the assembly inspected, at an estimated cost of $128. If the assembly needs to be adjusted or replaced, the estimated cost is $85 to $515. The inspection procedures are specified in the AD, with instructions and diagrams.
The new AD “retains all of the requirements of the original AD,” the FAA said, “and adds language to clarify its applicability and compliance requirements.” The revision will not increase the economic burden or the scope of the AD for any operator, the FAA said.
