Commonwealth legislation

AD/A109/29 Amdt 2 - Main Rotor Blades Tip Cap

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Commonwealth

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legislative instrument

Plain English Summary

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Mechanically, this amendment requires Agusta A109C helicopters fitted with specific main rotor blades (part 709-0103-01, serials up to 1428 preceded by A5 or EM) to be inspected per Agusta Bollettino Tecnico 109-106 Revision B: initial inspection within 10 flight hours after 10 January 2001 and recurring every 25 hours. CASA issued it to address tip-cap cracking and honeycomb debonding that increased vibration. Operators bear inspection and repair costs; maintenance organisations carry out the work, creating a recurring compliance obligation tied to the manufacturer’s bulletin.

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Current sections

Direct links to the current provisions in AD/A109/29 Amdt 2 - Main Rotor Blades Tip Cap.

AD/A109/29 Amdt 2 - Main Rotor Blades Tip Cap

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
View image in the official source
Agusta A109 Series Helicopters

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 revokes Airworthiness Directive (AD) AD/A109/29 Amdt 1 and issues the following 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.

AD/A109/29

Amdt 2

Main Rotor Blades Tip Cap 2/2001 DM

Applicability: Model A109C helicopters equipped with main rotor blades part number 709-0103-01 (all dash numbers) with serial numbers up to and including 1428, preceded by code A5 or EM.

Requirement: Inspect in accordance with Agusta Bollettino Tecnico 109-106 Revision B, dated 21 December 2000.

Note: ENAC AD 2000-571 refers.

Compliance: Within 10 hours’ time in service after 10 January 2001, unless already accomplished.

Thereafter at intervals not to exceed 25 hours’ time in service. This amendment becomes effective on 10 January 2001.

Background: The manufacturer received several reports of cracking of the main rotor blade tip cap leading edge which caused a subsequent increase in the level of vibration. An investigation revealed extensive areas of debonding of the tip cap honeycomb core, which caused a pulsating effect on the tip cap and subsequent cracking.

Amendment 1 reflected the latest revision of the Requirement document.

Amendment 2 is issued in response to a new ENAC AD which mandates Revision B of the Requirement document.

Amendment 1 of this Airworthiness Directive became effective on 14 October 1998.

The original issue of this Airworthiness Directive became effective on 14 August 1998.

View image in the official source

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 4 January 2001

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 10 January 2001.

Source text

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

1 AD/A109/29 Amdt 2 - Main Rotor Blades Tip Cap

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Agusta A109 Series Helicopters

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/A109/29 Amdt 1 and issues the following 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.

AD/A109/29

Amdt 2

Main Rotor Blades Tip Cap 2/2001 DM

Applicability: Model A109C helicopters equipped with main rotor blades part number 709-0103-01 (all dash numbers) with serial numbers up to and including 1428, preceded by code A5 or EM.

Requirement: Inspect in accordance with Agusta Bollettino Tecnico 109-106 Revision B, dated 21 December 2000.

Note: ENAC AD 2000-571 refers.

Compliance: Within 10 hours’ time in service after 10 January 2001, unless already accomplished.

Thereafter at intervals not to exceed 25 hours’ time in service. This amendment becomes effective on 10 January 2001.

Amendment 1 reflected the latest revision of the Requirement document.

Amendment 2 is issued in response to a new ENAC AD which mandates Revision B of the Requirement document.

Amendment 1 of this Airworthiness Directive became effective on 14 October 1998.

The original issue of this Airworthiness Directive became effective on 14 August 1998.

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 4 January 2001