Commonwealth legislation

AD/CESSNA 208/4 - Wing Fuel Tanks External Sump

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

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Commonwealth

Collection

legislative instrument

Plain English Summary

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What this is: A mandatory safety order (called an Airworthiness Directive) requiring owners of specific Cessna aircraft to modify their wing fuel tanks.

Who it affects: Owners and operators of Cessna 208, 208A, and 208B aeroplanes with specific serial numbers—specifically early production models (serial numbers 20800001 through 20800130 for the 208/208A, and 208B0001 through 208B0089 for the 208B).

What you must do: Install external sumps (drain collection points) on the wing fuel tanks according to the manufacturer's instructions in Cessna Service Bulletin No. CAB 88-23. This modification had to be completed before 31 May 1989.

Why it matters: The external sumps help collect contaminants—such as water, dirt, or debris—that accumulate in fuel tanks. This allows pilots to drain these contaminants during pre-flight checks, preventing contaminated fuel from reaching the engine and potentially causing engine failure or other serious safety hazards.

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AD/CESSNA 208/4 - Wing Fuel Tanks External Sump

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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 Cessna 208 Series Aeroplanes

AD/CESSNA 208/4 Wing Fuel Tanks External Sump 11/88

Applicability: Models 208 and 208A with serial numbers: 20800001 through 20800130.

Model 208B with serial numbers: 208B0001 through 208B0089.

Requirement: Action in accordance with Cessna SB No. CAB 88-23. Compliance: Prior to 31 May 1989.

Background: Installation of external sumps to the fuel tanks will assist in collecting contaminants that should be drained from the tanks.

Source text

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