This PIPER PA-16 airframe/engine combination has 23 current type-applicable Airworthiness Directives (12 airframe, 16 engine) and 5 historical. AD applicability is type-based — compliance status for N4000H must be verified against the aircraft maintenance logbooks.
Search FAA DRS for applicable ADs →N4000H is one of 316 PIPER PA-16 aircraft on the U.S. registry · fleet median year 1949.
2 possible NTSB record matches for N4000H — see verification below.
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