Commonwealth legislation

AD/A109/59 - Overhead Panel Circuit Breakers

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Directive requires operators of specified Agusta A109LUH helicopters (serials 13752–13759 and 13761) to replace two overhead panel circuit breakers (‘OVHD CSL’ and ‘EXT NORM’) with correctly rated parts, following Agusta Alert Bollettino Tecnico 109L-005. The replacement must be completed within 10 flight hours of the Directive’s effective date. Owners/operators pay for parts and maintenance and must arrange qualified servicing quickly to meet the short compliance window.

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Current sections

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Agusta A109 Series Helicopters

AD/A109/59	Overhead Panel Circuit Breakers	9/2007

Applicability:	A109LUH helicopters with serial numbers 13752 through 13759 inclusive and 13761.
Requirement:	Replace the ‘OVHD CSL’ and ‘EXT NORM’ circuit breakers in accordance with Agusta Alert Bollettino Tecnico 109L-005 dated 16 May 2007.
	Note: ENAC AD 2007-179 refers.
Compliance:	Within 10 hours time in service after the effective date of this Directive.
	This Airworthiness Directive becomes effective on 30 August 2007.
Background:	The Italian Ente Nazioale per L’Aviazione Civile (ENAC) has advised that a design verification conducted by Agusta revealed that the ‘OVHD CSL’ and ‘EXT NORM’ circuit breakers with incorrect ratings had been inadvertently installed. This Directive requires replacement of the circuit breakers with corrected rated breakers.

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David Punshon
Delegate of the Civil Aviation Safety Authority

17 July 2007

AD/A109/59

Overhead Panel Circuit Breakers

9/2007

Source text

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

Agusta A109 Series Helicopters Agusta A109 Series Helicopters

Agusta A109 Series Helicopters

AD/A109/59	Overhead Panel Circuit Breakers	9/2007

Applicability:	A109LUH helicopters with serial numbers 13752 through 13759 inclusive and 13761.
Requirement:	Replace the ‘OVHD CSL’ and ‘EXT NORM’ circuit breakers in accordance with Agusta Alert Bollettino Tecnico 109L-005 dated 16 May 2007.
	Note: ENAC AD 2007-179 refers.
Compliance:	Within 10 hours time in service after the effective date of this Directive.
	This Airworthiness Directive becomes effective on 30 August 2007.
Background:	The Italian Ente Nazioale per L’Aviazione Civile (ENAC) has advised that a design verification conducted by Agusta revealed that the ‘OVHD CSL’ and ‘EXT NORM’ circuit breakers with incorrect ratings had been inadvertently installed. This Directive requires replacement of the circuit breakers with corrected rated breakers.

AD/A109/59 - Overhead Panel Circuit Breakers

Plain English Summary

Deep dive

Current sections

Agusta A109 Series Helicopters

Agusta A109 Series Helicopters

AD/A109/59

AD/A109/59

Overhead Panel Circuit Breakers

Overhead Panel Circuit Breakers

9/2007

9/2007

Source text

Agusta A109 Series Helicopters Agusta A109 Series Helicopters

Agusta A109 Series Helicopters

AD/A109/59 AD/A109/59

AD/A109/59

Overhead Panel Circuit Breakers Overhead Panel Circuit Breakers

Overhead Panel Circuit Breakers

9/2007 9/2007

9/2007