Commonwealth legislation

AD/R44/16 - Vertical-to-Horizontal Stabiliser Attach Channel

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires operators of certain Robinson R44 helicopters to remove the vertical stabiliser, inspect the nutplates on the horizontal‑stabiliser attach channels, and replace the channels if they have a specified nutplate type. It also imposes a 2,200‑hour retirement life for the affected horizontal stabiliser assemblies. Owners/operators pay for the inspection, any replacements and record-keeping, and must complete the work before the stabiliser reaches 2,200 hours (see Requirement and Compliance).

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AIRWORTHINESS DIRECTIVE

View image in the official source

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.

AD/R44/16 Vertical-to-Horizontal Stabili

AD/R44/16 Vertical-to-Horizontal Stabiliser Attach Channel 13/2001

View image in the official sourceAD/R44/16 Vertical-to-Horizontal Stabiliser Attach Channel 13/2001

Applicability: Model R44 helicopters, with horizontal stabiliser assembly part number C044-1; horizontal stabiliser serial number 0009 through 0224, except 0018, 0090, 0094,

0111, 0129, 0144, 0161, 0178, 0201, and 0223, installed.

Requirement: Remove the vertical stabiliser to inspect the nutplate on channels, part number D283- 1 and -2 in accordance with Robinson Helicopter Company Service Bulletin SB-39.

If the nutplates are part number MS21086L4, no further action is required by this Directive.

If the nutplates are part number NAS697A4, replace the channels with serviceable channels, part number D296-1 or -2.

This AD revises the Limitations section of the maintenance manual by establishing a retirement life of 2,200 time in service for horizontal stabiliser assembly, part number C044-1, with channels part number D283-1 or -2, with nutplates, part number NAS697A4, installed.

Note: FAA AD 2001-20-18 Amdt 39-12466 refers.

Compliance: Before accumulating 2,200 hours time in service on the horizontal stabiliser assembly.

This Airworthiness Directive becomes effective on 19 November 2001.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE