77-12-05
final ruleAirworthiness Directives; CHAMPION SPARK PLUG COMPANY: Applies to Part Numbers CH48108 and CH48109 Oil Filters
Unsafe Condition: Possible oil filter malfunction resulting from internal bypass valve failure
Why matched: Airworthiness Directives; CHAMPION SPARK PLUG COMPANY: Applies to Part Numbers CH48108 and CH48109 Oil Filters