AD/PHZL/79 Amdt 2 - Propeller Vibration Placard (Cth)

AIRWORTHINESS DIRECTIVE On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below repeals Airworthiness Directive (AD) AD/PHZL/79 Amdt 1 and issues the following AD under subregulation 39.001 (1) of CASR 1998 and subsection 33 (3) of the Acts Interpretation Act 1901. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct an unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Propellers - Variable Pitch - Hartzell AD/PHZL/79 Amdt 2 Propeller Vibration Placard 12/2014

Applicability: This AD applies to Hartzell ( )HC-C2YK-( )( )( )/( )( )7666A-( ) propellers installed on undampered 200 horsepower Lycoming IO-360 engines. Note 1: These engines can be fitted to but are not limited to Mooney M20E and M20F, Piper PA-28R-200, and Pitts S-1T and S-2A aeroplanes.

Note 2: Engine models of this series incorporate no crankshaft dampers unless the third section of the model designation exhibits a numerical digit in its fourth position, i.e. IO-360-A1B6. The digit "6" in the fourth position, indicates the incorporation of one 6.3 order and one 8th order counterweights. Requirement: For Normal Category aeroplanes:

1. Unless previously accomplished, remove any vibration placard that does not have the following statement and replace it with one that does:

"Avoid continuous operation Between 2000 and 2350 rpm"