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AD/BELL 47/103 - Main Rotor Blades Box Beam Clips - 2
Bell Helicopter Textron 47 (All VariantsBell Helicopter Textron 47 (All Variants) Series Helicopters
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Bell Helicopter Textron 47 (All Variants) Series Helicopters
| AD/BELL 47/103 | Main Rotor Blades Box Beam Clips - 2 | 9/2009 DM |
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| Applicability: | Kawasaki-Bell Model 47G-2A and 47G3B-KH4 helicopters equipped with main rotor blade part number 47-110-250-21 (047-110-250-021), with serial number A-303,A-304, A-312 or A-316. |
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| Requirement: | 1. Perform a visual inspection of each main rotor blade for correct installation of box beam clips in accordance with PART II of the Accomplishment Instructions of Kawasaki-Bell Service Bulletin No. KSB-BELL-370 original issue, or later JCAB approved revision.2. For main rotor blades held as spares, perform a visual inspection of each main rotor blade for correct installation of box beam clips in accordance with PART I of the Accomplishment Instructions of Kawasaki-Bell Service Bulletin No. KSB-BELL-370 original issue, or later JCAB approved revision.If a main rotor blade is found with an incorrectly installed clip, before further flight, replace that unserviceable main rotor blade with a serviceable main rotor blade that has a clip that is installed correctly.Special flight permits may be issued to operate the helicopter to a location where the requirements of this Directive can be accomplished, provided the one-time ferry flight does not exceed 5 hours time in service.Note: JCAB AD TCD-7309-2009 refers. |
| Compliance: | 1. Before further flight after 29 June 2009, unless already accomplished.2. Before installation on a helicopter. |
| This Airworthiness Directive becomes effective on 29 June 2009. |
| Background: | A report was received of a main rotor blade with an incorrectly installed clip. The actions required by this Directive are intended to prevent a main rotor blade spar crack as a result of an incorrectly installed clip, loss of a main rotor blade, and subsequent loss of control of the helicopter. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
25 June 2009