Commonwealth legislation

AD/FK-P/7 - Interchangeability of Parts

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires owners and maintenance organisations of specified Franklin piston engines to follow WSK‑RZESZOW Service Bulletin PZL‑F/69/2002: inspect for mixed oil‑pump-to‑camshaft drive gears and, when replacing gears at overhaul, install matched pairs. Compliance is mandatory before further flight.

It affects engine owners, mechanics and parts suppliers who bear inspection and replacement costs. CASA says the rule responds to excessive gear wear caused by mixing gears from different manufacturers with differing material hardness.

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AIRWORTHINESS DIRECTIVE

View image in the official source

View image in the official source
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Franklin Piston Engines

AD/FK-P/7 Interchangeability of Parts 1/

AD/FK-P/7 Interchangeability of Parts 1/2003 TX

Applicability: All Frank lin model 6A-350-C1R, C1, C2 and 4A-235-B3, B31, B4 engines. Requirement: Action in accordance with WSK-RZESZOW Service Bulletin PZL-F/69/2002.

Note: Republic of Poland General Inspectorate of Civil Aviation Airworthiness Directive Nr SP-0058-2002-B refers.

Compliance: Before further flight.

This Airworthiness Directive becomes effective on 29 November 2002.

Background: There have been occurrences of excessive wear of the drive gears between the oil pump and the camshaft. This is due to different specifications regarding the hardness of the materials used for the manufacture of the gears. More than one manufacturer supplies the gears. Mixing of the gears can cause excessive wear and ultimately lead to the failure of the engine. This Directive addresses the problem by providing an in- service check for engines already fitted with a mixed set of gears, and a requirement for engines needing gears to be replaced at overhaul to have any gear replacements done in matched pairs.

View image in the official source

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 26 November 2002

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 29 November 2002.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Franklin Piston Engines

AD/FK-P/7 Interchangeability of Parts 1/ AD/FK-P/7 Interchangeability of Parts 1/2003 TX

AD/FK-P/7 Interchangeability of Parts 1/2003 TX

Applicability: All Frank lin model 6A-350-C1R, C1, C2 and 4A-235-B3, B31, B4 engines. Requirement: Action in accordance with WSK-RZESZOW Service Bulletin PZL-F/69/2002.

Note: Republic of Poland General Inspectorate of Civil Aviation Airworthiness Directive Nr SP-0058-2002-B refers.

Compliance: Before further flight.

This Airworthiness Directive becomes effective on 29 November 2002.

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 26 November 2002

The above AD is notified in the Commonwealth of Australia Gazette on 29 November 2002.