This HILLER UH-12L4 airframe/engine combination has 29 current type-applicable Airworthiness Directives (17 airframe, 13 engine) and 1 historical. AD applicability is type-based — compliance status for N90487 must be verified against the aircraft maintenance logbooks.
Search FAA DRS for applicable ADs →N90487 is one of 4 HILLER UH-12L4 aircraft on the U.S. registry · fleet median year 1966.
1 possible NTSB record match for N90487 — see verification below.
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