Commonwealth legislation

AD/EMB-120/2 - APU Electronic Control Unit

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This directive requires operators of specified Embraer EMB-120 aircraft to carry out the technical actions set out in Brazilian AD 90-09-02 R1 (and related Embraer service information) to address a risk that water ingress during washing can contaminate the APU electronic control unit and cause overspeed control failure.

It affects listed EMB-120 owners/operators, must be completed by the effective date, and obliges operators to obtain and follow the referenced documents (costs borne in practice by operators).

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AD/EMB-120/2 - APU Electronic Control Unit

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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 Embraer EMB-120 (Brasilia) Series Aeroplanes

AD/EMB-120/2 APU Electronic Control Unit 4/91

Applicability: All Embraer 120 aircraft as detailed in the Requirement Document.

Requirement: Action in accordance with the technical requirements of Brazilian AD 90-09-02 R1 dated 14 January 1991.

Note: Embraer SB NR 120-053-0049 also refers.

Compliance: As specified in the Requirement Document with an effective date of 18 April 1991.

Background: It has been determined that the EMB 120 APU Electronic Control Unit may be subject to accidental water contamination during aircraft washing which may result in malfunction of the APU overspeed control which could affect safety of flight.

Source text

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