Commonwealth legislation

AD/BO 105/2 Amdt 1 - Tail Rotor Blade Grips

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires operators of BO 105 helicopters fitted with tail‑rotor blade grips P/N 105‑31711 or 105‑31722 to carry out three specified grip inspections, at recurring 100‑hour and 600‑hour tail‑rotor intervals, following the procedures in the referenced MBB Alert and Service Bulletins. It increases recurring maintenance workload and costs for operators, who must perform the inspections and any follow‑on repairs identified.

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AD/BO 105/2 Amdt 1 - Tail Rotor Blade Grips

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Eurocopter BO 105 Series Helicopters

AD/BO 105/2

Amdt 1

Tail Rotor Blade Grips 2/87

Applicability: All Models fitted with tail rotor blade grips P/N 105-31711 and 105-31722.

Requirement: 1. Inspect the clevis area of each grip in accordance with BO 105 Alert Bulletin No 18.

2. Inspect the inboard end of each grip in accordance with BO 105 SB No 30-24.

3. Inspect each grip in and around the hole for the laminated-pack retaining bolt in accordance with BO 105 SB No 30-24.

Compliance: For Para’s 1 and 2 - At each 100 hour inspection of the tail rotor.

For Para 3 - At each 600 hour inspection of the tail rotor.

Background: Cracks in the tail rotor blade grips have been found in service. This Directive addresses the requirements of MBB BO 105 Alert Bulletin 18 and Service Bulletin No 30-24, and LBA Directives 78-339 MBB and 79-144 MBB.

Source text

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

1 AD/BO 105/2 Amdt 1 - Tail Rotor Blade Grips