Commonwealth legislation

AD/BO 105/6 - Fuel Filter Drain Valve

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Commonwealth

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legislative instrument

Plain English Summary

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Requires inspections and corrective actions on Eurocopter BO 105 helicopters fitted with engine fuel filter drain valve P/No P101‑228 to prevent the drain valve from disintegrating. Operators must carry out work in accordance with MBB Alert Service Bulletin ASB BO 105‑60‑101.

Some actions must be completed before the next flight, others at each daily inspection; an interim single corrective action may be used in place of the first two until improved valves are supplied.

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AD/BO 105/6 - Fuel Filter Drain Valve

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 105/6 Fuel Filter Drain Valve 9/86 DM

Applicability: All model BO 105 helicopters fitted with engine fuel filter drain valve P/No P101- 228.

Requirement: Action in accordance with MBB Alert Service Bulletin ASB BO 105-60-101.

Note: German AD 86-148 MBB Refers.

Compliance: Corrective action 1 of Requirement Document:

Before further flight after 22 August 1986. Corrective action 2 of Requirement Document:

At each daily inspection after 22 August 1986.

Corrective action 3 of Requirement Document:

This action may be carried out before further flight after 22 August 1986 in which case corrective actions 1 and 2 need not be complied with.

Note: Corrective action in accordance with action 3 is an interim measure until manufacturer can supply improved drain valves.

Background: Draining the fuel filters at preflight checks may loosen the handle of the shutoff plunger and under adverse conditions may cause the drain valve to disintegrate.

Source text

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

1 AD/BO 105/6 - Fuel Filter Drain Valve