This PIPER PA-31-310 airframe/engine combination has 37 current type-applicable Airworthiness Directives (0 airframe, 56 engine) and 19 historical. AD applicability is type-based — compliance status for N400S must be verified against the aircraft maintenance logbooks.
Search FAA DRS for applicable ADs →N400S is one of 170 PIPER PA-31-310 aircraft on the U.S. registry · fleet median year 1971.
1 NTSB accident/incident record associated with N400S — details below.
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