This BELL 47D1 airframe/engine combination has 115 current type-applicable Airworthiness Directives (117 airframe, 0 engine) and 2 historical. AD applicability is type-based — compliance status for N140B must be verified against the aircraft maintenance logbooks.
Search FAA DRS for applicable ADs →N140B is one of 52 BELL 47D1 aircraft on the U.S. registry · fleet median year 1951.
7 possible NTSB record matches for N140B — see verification below.
Need maintenance, annual inspection, or avionics work? Find FAA-certified mechanics in IA.
Find Mechanics in IA Find IAs