Document ID: chunk:federal_register_of_legislation:F2008L02889:body:0:p2
Version: federal_register_of_legislation:F2008L02889
Segment Type: other
Provision Reference: 
Character Range: 2936–4529

the effective date of this AD that use Hartzell Propeller Inc. ASB No. HC-SB-61-297, dated 17 September 2007, comply with the requirements specified in this AD.

             Later revisions of the above SB, approved by the United States Federal Aviation Administration (FAA) as an Alternate Method of Compliance (AMOC) to FAA AD 2008-13-28 are considered acceptable for compliance with the equivalent Requirements of this Directive.

             Note 2:  FAA AD 2008-13-28 Amdt 39-15591 dated 19 June 2008 refers.
Compliance:  For Requirement 1:

                Initial inspection within 50 flight hours after the effective date or within 12 months after the effective date of this AD, whichever occurs first, unless previously accomplished; and

                Thereafter repetitively at intervals not to exceed 50 flight hours or 12 months, whichever occurs first.

             For Requirement 2:

                Before further flight.

             For Requirement 3:

                At completion of the inspection as detailed in Requirement 1 of this AD.

             For Requirement 4:

                From the effective date of this AD.
             This Airworthiness Directive becomes effective on 28 August 2008.
Background:  The FAA has received four reports of propeller hub cracks, including two in-flight blade separation events.  The issuing of this AD is intended to prevent failure of the propeller hub, which could result in blade separation and loss of control of the aeroplane.

James Coyne
Delegate of the Civil Aviation Safety Authority

16 July 2008