AC Spark Plug Airworthiness Directives

Airworthiness Directives; AC SPARK PLUG: Applies to All Engines Equipped With AC LA-87 Spark Plugs

Unsafe Condition: Use of AC LS-87 spark plugs in engines for which they are not approved may lead to engine failure.

Why matched: Airworthiness Directives; AC SPARK PLUG: Applies to All Engines Equipped With AC LA-87 Spark Plugs