Commonwealth legislation

AD/JBK 117/1 Amdt 1 - Tail Rotor Blade Bonding

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Commonwealth

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legislative instrument

Plain English Summary

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This AD covers Kawasaki BK117 helicopters fitted with tail rotor blades P/N 117-31742, S/N 63–82, requiring either immediate replacement (if those blades had <5 hours service before 23 July 1990) or a pre-flight inspection regime (if >5 hours), to be carried out “in accordance with” Japan JCAA AD TCD 2589-2-90. It affects owners/operators and maintenance organisations (who bear costs and operational downtime), and was issued after findings of potentially inadequate blade bonding.

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Current sections

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AD/JBK 117/1 Amdt 1 - Tail Rotor Blade Bonding

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Kawasaki BK 117 Series Helicopters

AD/BK 117/1

Amdt 1

Tail Rotor Blade Bonding 2/94

Applicability: All models fitted with tail rotor blades P/n 117-31742 serial numbers 63 to 82. Requirement: Action in accordance with Japan Civil Aviation Bureau AD TCD 2589-2-90. Compliance: For Tail Rotor Blades with:

less than five hours time in service prior to 23 July 1990, replace prior to further flight, and

2. more than five hours time in service prior to 23 July 1990, inspect prior to each flight in accordance with the requirement document.

3. this amendment is effective 3 February 1994.

Note: The previous effective date of this Directive was 24 August 1987.

Background: Some blades may have had inadequate bonding. Amendment 1 is to reflect the latest issue of the requirement document.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/JBK 117/1 Amdt 1 - Tail Rotor Blade Bonding