Commonwealth legislation

AD/PC-6/48 - Horizontal Stabiliser Trim Setting

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires Pilatus PC‑6 aeroplanes up to Manufacturer Serial Number 939 to display a pilot-visible warning about correct horizontal stabiliser trim and to insert two specified temporary Flight Manual revisions. The placard (or a fabricated equivalent) must be fitted and the manual updates made before further flight after 3 July 2002.

Operators must pay for the placard/manual changes or may instead install the trim‑warning system set out in Pilatus Service Bulletin No. 180 Rev 1 (which ends the placard/manual requirement). CASA enforces compliance.

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AIRWORTHINESS DIRECTIVE

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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.

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Pilatus Porter PC-6 Series Aeroplanes

AD/PC-6/48 Horizontal Stabiliser Trim Se

AD/PC-6/48 Horizontal Stabiliser Trim Setting 8/2002

Applicability: Model PC-6 aircraft, all Manufacturers Serial Numbers up to and including MSN 939.

Requirement: Placard Installation:

Install placard Pilatus part number 110.71.06.611 on the heating tube above the instrument panel on the left side of the Stand-By Compass in clear view of the pilot; or,

b. Fabricate placard in conspicuous colour with the following words, using letters at least ½- inch in height, and install this placard on the heating tube above the instrument panel on the left side of the Stand-By Compass in clear view of the pilot:

“WARNING: SET CORRECT TRIM BEFORE TAKE-OFF”

Flight Manual Revision:

Insert Pilatus PC-6 Aircraft Flight Manual Temporary Revision TR-TRIM 1, dated 26 August 1999, into Section 2 Operating Procedures of the Aircraft Flight Manual, and,
Insert Pilatus PC-6 Aircraft Flight Manual Temporary Revision TR-TRIM 3, dated 14 June 2002 into the Aircraft Flight Manual.

Terminating action

Installation of the trim warning system mandated by (Pilatus PC-6 Service Bulletin No. 180 Revision 1) constitutes terminating action for the Placard Installation, and Flight Manual Revision paragraph b. of this Directive.

Note: Switzerland FOCA AD HB 2002-314 refers.

Compliance: Before further flight after 3 July 2002, unless already accomplished.

This Airworthiness Directive becomes effective on 3 July 2002.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

Pilatus Porter PC-6 Series Aeroplanes

AD/PC-6/48 Horizontal Stabiliser Trim Se AD/PC-6/48 Horizontal Stabiliser Trim Setting 8/2002

AD/PC-6/48 Horizontal Stabiliser Trim Setting 8/2002

Applicability: Model PC-6 aircraft, all Manufacturers Serial Numbers up to and including MSN 939.

Requirement: Placard Installation:

Install placard Pilatus part number 110.71.06.611 on the heating tube above the instrument panel on the left side of the Stand-By Compass in clear view of the pilot; or,

b. Fabricate placard in conspicuous colour with the following words, using letters at least ½- inch in height, and install this placard on the heating tube above the instrument panel on the left side of the Stand-By Compass in clear view of the pilot:

“WARNING: SET CORRECT TRIM BEFORE TAKE-OFF”

Flight Manual Revision:

Insert Pilatus PC-6 Aircraft Flight Manual Temporary Revision TR-TRIM 1, dated 26 August 1999, into Section 2 Operating Procedures of the Aircraft Flight Manual, and,
Insert Pilatus PC-6 Aircraft Flight Manual Temporary Revision TR-TRIM 3, dated 14 June 2002 into the Aircraft Flight Manual.

Terminating action

Note: Switzerland FOCA AD HB 2002-314 refers.

Compliance: Before further flight after 3 July 2002, unless already accomplished.

This Airworthiness Directive becomes effective on 3 July 2002.