Commonwealth legislation

AD/LA-4/1 - Nose Landing Gear Drag Strut - Inspection

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Commonwealth

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legislative instrument

Plain English Summary

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This directive mandates a one‑time inspection of the nose‑gear drag‑strut bolt on Lake LA‑4 series aeroplanes to confirm the correct bolt type and head orientation, with required rework or replacement where wear or incorrect hardware is found. Compliance is mandatory by the specified deadline.

It affects aircraft owners/operators (who pay for inspections/repairs), maintenance organisations and mechanics (who perform the work), and parts suppliers (who may provide specified bolts and bushings).

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Current sections

Direct links to the current provisions in AD/LA-4/1 - Nose Landing Gear Drag Strut - Inspection.

AD/LA-4/1 - Nose Landing Gear Drag Strut - Inspection

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Consolidated Aeronautics, Colonial and LA-4 Series Aeroplanes

AD/LA-4/1 Nose Landing Gear Drag Strut - Inspection 8/65

Applicability: All Lake LA-4 Series.

Requirement: Inspect the bolt at the top of the nose landing gear drag strut at fuselage Station 12 5/8 to ensure that AN 5-16A bolt or an approved equivalent is installed and that the bolt head is on the right hand side of the aircraft. If an AN5-15A bolt is found installed it will be necessary to inspect the bolt holes in the drag strut and the supporting assembly for elongation and if worn rework in accordance with Lake Aircraft Division SL No. 11B dated February 22, 1965. All replacement bolts must be AN 5- 16A or AN 5-17A with the head on the right side of the aircraft.

AN 5-17A is used when bushings are installed.

Compliance: Before 30 September 1965.

Source text

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

1 AD/LA-4/1 - Nose Landing Gear Drag Strut - Inspection