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AD/HU 369/117 - Tail Rotor Blade Root Fitting
McDonnell Douglas (Hughes) and Kawasaki McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters
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McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters
| AD/HU 369/117 | Tail Rotor Blade Root Fitting | 7/2007 TX |
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| Applicability: | Model 369, 369A, 369H, 369HM, 369HS, 369HE, 369D, 369E, 369F, and 369FF helicopters, equipped with a tail rotor blade part number 369A1613, 369D21606, 369D21613, 369D21615, or 421-088, all dash numbers. |
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| Requirement: | Inspect each affected tail rotor blade for a smooth radius as follows:a. Remove the tail rotor blade assembly by following the Accomplishment Instructions, paragraphs 2.B.(1) through 2.B.(3), Part 2., of MD Helicopters Inc., Service Bulletin SB369H-247, SB369D-204, SB369E-099, and SB369F-084, dated 26 April 2007, as applicable.b. Using a bright light, inspect the bore of the tail rotor blade root fitting by following the Accomplishment Instructions, paragraphs 2.B.(4) and 2.B.(5),Part 2, and Figures 1 and 2 of the applicable service bulletin.c. Before further flight, replace each blade assembly that does not have a smooth radius by following the Accomplishment Instructions, paragraphs 2.B.(6) and 2.B.(7), Part 2, and Figure 2 of the applicable service bulletin.d. Identify the serviceable tail rotor blade assembly with the applicable model of helicopter by following the Identification, paragraphs 3.(1) through 3.(4) of the applicable service bulletin.Note 1: Special Flight permits will not be allowed.Note 2: FAA Emergency AD 2007-09-51 refers. |
| Compliance: | Before further flight after 1 May 2007. |
| This Airworthiness Directive becomes effective on 1 May 2007. |
| Background: | The FAA received a report of an accident after the loss of a tail rotor blade. This condition, if not corrected, could result in the failure of a tail rotor blade and subsequent loss of control of the helicopter. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
30 April 2007