COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Bell Helicopter Textron 47 (All Variants) Series Helicopters
AD/BELL 47/98 Main Rotor Grip 1/92
Applicability: Model 47G2, 47G2A, 47G2A1, 47G3, 47G3B1, 47G3B2, 47G3B2A, 47G4, 47G4A,
47G5, 47G5A, 47J, 47J2 and 47J2A helicopters, with main rotor grip part number 47-120-252-11, installed.
Requirement: Visually inspect the M/R grip and determine if one of the following serial numbers is installed:
IT - 0251, 0253, 0254, 0255, 0256, 0257, 0260, 0261, 0262, 0263, 0264, 0265, 0267,
0268, 0270, 0271, 0272, 0273, 0274, 0275, 0276, 0277, 0278, 0279, 0280, 0281,
0282, 0284, 0285, 0286, 0289, 0290, 0291, 0293, 0294, 0295, 0296, 0297, 0299,
0300, 0302, 0303, 0306, 0308, 0312, 0313, 0315, 0316, 0317, 0319, 0323, 0324,
0326, 0327, 0328, 0329, 0330, 0333, 0334, 0335
ITM - 0005, 0007, 0022, 0046, 0077, 0096, 0109, 0112, 0114, 0115, 0125, 0128,
0133, 0155, 0161, 0165, 0166, 0167, 0168, 0170, 0171, 0178, 0182, 0183, 0185,
0187, 0189, 0191, 0192, 0194, 0197, 0198, 0202, 0204, 0211, 0212, 0218, 0234,
0235, 0236, 0237, 0238, 0239, 0240, 0241, 0242, 0243, 0244, 0245, 0246, 0248,
0249, 0250, 0251, 0252, 0253, 0255, 0256, 0257, 0258, 0259, 0261, 0262, 0263,
0264, 0265, 0266, 0267, 0269, 0270, 0271, 0272, 0273, 0274, 0275, 0276, 0277,
0278, 0279, 0280, 0281, 0282, 0283, 0284, 0286, 0287, 0288, 0289, 0290, 0291,
0292, 0293, 0294, 0295, 0296, 0297.
If one of the M/R grips listed above is installed, remove and replace with a serviceable part.
Note: FAA AD 91-20-10 Amdt 39-8044 refers.
Compliance: Within 50 hours time in service after 12 January 1992.
Background: The FAA has issued a Directive in response to reports that a vendor to BHTI produced and directly distributed 156 M/R grips which by-passed the FAA-approved quality control system. As a result, these M/R grips are potentially unsafe and must be removed from service. The effective date required by the FAA is extended by two months.