Commonwealth legislation

AD/JBK 117/9 - Retrofit of Engine Overspeed Controller

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This directive requires owners/operators of Kawasaki BK 117 helicopters with AlliedSignal LTS101-650B1 or LTS101-750B1 engines (per AlliedSignal Service Bulletin LTS 101B-73-10-0127 Rev 2) to modify electrical wiring/hardware so an electronic engine overspeed controller will work.

Work must be done per Kawasaki Service Bulletin KSB-117-101 at the next 600-hour inspection after 15 Aug 1996, but by 31 Dec 1997 at the latest, to prevent uncontained power-turbine overspeed events.

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Current sections

Direct links to the current provisions in AD/JBK 117/9 - Retrofit of Engine Overspeed Controller.

AD/JBK 117/9 - Retrofit of Engine Overspeed Controller

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Kawasaki BK 117 Series Helicopters

AD/JBK 117/9 Retrofit of Engine Overspeed Controller 9/96

Applicability: All BK 117 series helicopters fitted with AlliedSignal LTS101-650B1 or LTS101- 750B1 engines incorporating AlliedSignal Service Bulletin LTS 101B-73-10-0127 Revision 2.

Requirement: To prevent a power turbine overspeed and an uncontained engine failure, incorporate the wiring and associated hardware installation requirements detailed in Kawasaki Service Bulletin Number KSB-117-101.

Note 1: CAO Airworthiness Directive Part 106 AD/LTS/13 refers. Note 2: FAA Airworthiness Directive AD 95-26-01 refers.

Compliance: Effective 15 August 1996: Concurrent with CAO Part 106 Airworthiness Directive AD/LTS/13, Requirement 2; at the next scheduled 600 hour airframe inspection after the effective date of this directive, but no later than 31 December 1997.

Background: This directive has been issued to require the wiring and associated hardware modifications necessary to permit the incorporation of an electronic engine overspeed controller. The requirement, in conjunction with AD/LTS/13, addresses reports of uncontained power turbine overspeed events.

Source text

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

1 AD/JBK 117/9 - Retrofit of Engine Overspeed Controller

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Kawasaki BK 117 Series Helicopters

AD/JBK 117/9 Retrofit of Engine Overspeed Controller 9/96

Applicability: All BK 117 series helicopters fitted with AlliedSignal LTS101-650B1 or LTS101- 750B1 engines incorporating AlliedSignal Service Bulletin LTS 101B-73-10-0127 Revision 2.

Note 1: CAO Airworthiness Directive Part 106 AD/LTS/13 refers. Note 2: FAA Airworthiness Directive AD 95-26-01 refers.