Commonwealth legislation

AD/CA25/8 - Carburettor Heat Modification Number 7/97

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legislative instrument

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Owners and operators of Skyfox CA25 and CA25N aeroplanes fitted with ROTAX 912 engines must have Skyfox modification 7/97 installed per the manufacturer’s instructions within 10 flying hours or 30 days of 18 September 1998. The mandatory change, at the owner’s expense and done by certificated maintenance, is intended to correct an excessive RPM drop when carburettor heat is selected.

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AD/CA25/8 - Carburettor Heat Modification Number 7/97

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Skyfox Aviation (Hedaro) CA25 Series Aeroplanes

AD/CA25/8 Carburettor Heat Modification Number 7/97 12/98 TX

Applicability: All Skyfox CA25 and CA25N aircraft fitted with ROTAX 912 engines.

Requirement: Embody Skyfox modification Number 7/97 in accordance with the manufacturer’s instructions.

Compliance: Within 10 flying hours or 30 days, whichever is the sooner, of the effective date of this directive.

This directive becomes effective on 18 September 1998.

Background: ROTAX powered Skyfox CA25 and CA25N aircraft suffer from excessive RPM drop when carburettor heat is selected. Skyfox modification 7/97 was released in October 1997 to correct this unsatisfactory characteristic. This is considered to be a safety of flight issue and this Directive is issued to ensure that all Skyfox aircraft are modified expediently.

Source text

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

1 AD/CA25/8 - Carburettor Heat Modification Number 7/97