Commonwealth legislation

AD/DH 104/16 - Flap System Modification to Prevent Crossing of Pneumatic Lines

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

1/10 complexity

What it does This is a mandatory safety order (called an Airworthiness Directive) requiring owners of De Havilland DH 104 Dove aircraft to modify the flap system. Specifically, it mandates a design change to prevent pneumatic (air pressure) lines from crossing each other inside the aircraft's flap mechanism.

Who it affects Anyone who owns or operates any model of the DH 104 Dove series aircraft—a twin-engine propeller aircraft commonly used in the mid-20th century.

What must be done Operators must implement "De Havilland Modification No. 607" to the flap system. This was a physical hardware change to be completed before 1 September 1971.

Why it matters Crossing pneumatic lines could potentially cause the flaps to malfunction or fail during flight. This directive ensures these vintage aircraft were retrofitted to eliminate that specific safety risk.

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Direct links to the current provisions in AD/DH 104/16 - Flap System Modification to Prevent Crossing of Pneumatic Lines.

AD/DH 104/16 - Flap System Modification to Prevent Crossing of Pneumatic Lines

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source DH 104 (Dove) Series Aeroplanes

AD/DH 104/16 Flap System Modification to Prevent

Crossing of Pneumatic Lines

8/71

Applicability: All models.

Document: De Havilland Mod. No. 607. Compliance: Before 1 September 1971.

Source text

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