Airworthiness Directive 2003-03-20
one-timeAirworthiness Directives; Hartzell Propeller Inc., Model HC-C2YR-4CF Propellers
What this AD requires
This amendment adopts a new airworthiness directive (AD), that is applicable to Hartzell Propeller Inc. model HC-C2YR-4CF propellers. This amendment requires the reduction of the original hub and blades certified service (fatigue) life from unlimited hours to 2,000 hours. This amendment is prompted by a reevaluation by Hartzell Propeller Inc. of the original hub and blades service life certification calculations. The actions specified by this AD are intended to prevent fatigue failure of the original propeller hub and blades which may result in loss of airplane control.
Which aircraft AD 2003-03-20 applies to
Applies to Hartzell propeller hubs P/N D-6522-1 or D-2201-16 and blades P/N FC8477A-4 (fatigue failure prevention); affected parts must be removed from service before exceeding 2,000 flight hours.
Whether AD 2003-03-20 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.