Commonwealth legislation

AD/JBK 117/22 - Airwork Hoist Modification

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Commonwealth

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legislative instrument

Plain English Summary

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This AD requires operators of Kawasaki BK‑117 helicopters fitted with Airwork (NZ) hoist STCs to inspect the CABLE CUT switch guard, replace any non‑conforming guards, and replace a two‑position switch with a specified momentary‑action switch and guard. The AD is issued to correct an unsafe condition; operators (owners) must perform the work at the stated times (before next hoist use, before further hoist operation after inspection, and within 100 hours) and will bear parts and labour costs, with CASA enforcing compliance under CASR subreg 39.1(1).

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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 CASR 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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Kawasaki BK 117 Series Helicopters

AD/JBK 117/22 Airwork Hoist Modification

AD/JBK 117/22 Airwork Hoist Modification 11/2004

Applicability: BK-117 helicopters with fitted with Airwork (NZ) Ltd hoist modification ARD/721, ARD/741, ARD/752, ARD/977, ARD/999.STC or STC.AW.0003.

Requirement: 1. Inspect the CABLE CUT switch guard in accordance with Airwork (NZ) Ltd Service Bulletin (SB) SB.AW.0001 Issue 1 dated 19 August 2004 to determine the part number (P/N) of the switch guard.

2. If, as a result of the Requirement 1 inspection, the P/N of the switch guard is not MS25224-1, \-2 or \-3, replace the switch guard in accordance with SB.AW.0001 Issue 1.

3. Replace the two position switch with a momentary action switch P/N MS24523- 26 or MS24524-26, as applicable, and if not already installed, fit switch guard P/N MS25224-3 in accordance with SB.AW.0001 Issue 1.

Note 1: Only switch guard P/N MS25224-3 is acceptable with the new momentary contact switch (P/N MS25224-1, -2 or -3 are acceptable prior to replacement of the switch).

Note 2: CAA(NZ) AD DCA/BK117/14 refers.

Compliance: For Requirement 1 - Before the next hoist operation after the effective date of this Directive.

For Requirement 2 - Before further operation of the hoist after the Requirement 1 inspection.

For Requirement 3 - Within 100 hours time in service after the effective date of this Directive.

This Airworthiness Directive becomes effective on 1 September 2004.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

Kawasaki BK 117 Series Helicopters

AD/JBK 117/22 Airwork Hoist Modification AD/JBK 117/22 Airwork Hoist Modification 11/2004

AD/JBK 117/22 Airwork Hoist Modification 11/2004

Applicability: BK-117 helicopters with fitted with Airwork (NZ) Ltd hoist modification ARD/721, ARD/741, ARD/752, ARD/977, ARD/999.STC or STC.AW.0003.

2. If, as a result of the Requirement 1 inspection, the P/N of the switch guard is not MS25224-1, \-2 or \-3, replace the switch guard in accordance with SB.AW.0001 Issue 1.

3. Replace the two position switch with a momentary action switch P/N MS24523- 26 or MS24524-26, as applicable, and if not already installed, fit switch guard P/N MS25224-3 in accordance with SB.AW.0001 Issue 1.

Note 1: Only switch guard P/N MS25224-3 is acceptable with the new momentary contact switch (P/N MS25224-1, -2 or -3 are acceptable prior to replacement of the switch).

Note 2: CAA(NZ) AD DCA/BK117/14 refers.

Compliance: For Requirement 1 - Before the next hoist operation after the effective date of this Directive.

For Requirement 2 - Before further operation of the hoist after the Requirement 1 inspection.

For Requirement 3 - Within 100 hours time in service after the effective date of this Directive.

This Airworthiness Directive becomes effective on 1 September 2004.