AD/HU 369/120 - Tail Rotor Blade Abrasion Strip (Cth)

AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the 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.

McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters AD/HU 369/120 Tail Rotor Blade Abrasion Strip 10/2008 DM

Applicability: Model 369A, OH-6A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM and 369HS, certificated in any category, with a tail rotor blade installed as follows, including all serial numbers and those T/R blades with an "M" or an "I" painted on the T/R blade root:

Helicopter Technology Company, LLC (HTC) part number (P/N) 500P3100-101 and -103, or MDHI P/N 369D21640-501, -503, and -505. HTC P/N 500P3100-301 and -303, or MDHI P/N 369D21641- 501, -503, and -505. HTC P/N 500P3300-501 and -503, or MDHI P/N 369D21643- 501, -503, and -505. HTC P/N 500P3500-701 and -703, or MDHI P/N 369D21642- 501, -503, and -505.

Note 1: An "M'' or an "I'' painted on the root of the T/R blade indicates compliance with an Alternate Method of Compliance (AMOC) to Emergency AD 2003-08-51 (AD/HU 369/111), issued by the FAA, Los Angeles Aircraft Certification Office (LAACO) on June 13, 2003 to HTC. The AMOC addressed shot peening of the pitch horn of the T/R assembly. CASA is not able to provide a copy of this AMOC. HTC should be approached for a copy if required. Requirement: Accomplish the following actions: