This BELL 47 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 N1HQ must be verified against the aircraft maintenance logbooks.
Search FAA DRS for applicable ADs →N1HQ is one of 1 BELL 47 aircraft on the U.S. registry.
4 possible NTSB record matches for N1HQ — see verification below.
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