Commonwealth legislation

AD/DH114/48 - Aileron Mass Balance Weight Assembly

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Commonwealth

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legislative instrument

Plain English Summary

2/10 complexity

This AD requires all De Havilland DH114 (Heron) aircraft to have the aileron mass‑balance weight assembly modified/serviced per British Aerospace TNS W19 Issue 1 or inspected under a Secretary‑approved scheme by the specified maintenance deadlines (unless already done). It applies to owners/operators of all Heron models.

The measure responds to reported severe internal corrosion that could cause aileron flutter or handling failure; compliance imposes inspection/repair costs, parts/labour and aircraft downtime.

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AD/DH114/48 - Aileron Mass Balance Weight Assembly

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source DH114 (Heron) Series Aeroplanes

AD/DH114/48 Aileron Mass Balance Weight Assembly 7/87

Applicability: All models.

Requirement: 1. Action in accordance with British Aerospace TNS W19 Issue 1, or

Inspect in accordance with a scheme approved by the Secretary. Compliance: Unless already accomplished;
In accordance with the Requirement Document, but no later than 31 August 1987.

2. At the next inspection for Maintenance Release issue after 30 June 1987 but no later than 31 August 1987.

Background: A case has been reported of severe internal corrosion. Loss or failure of the balance assembly may cause aileron flutter or severe handling problems.

Source text

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