54-04-01
final ruleAirworthiness 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
