Commonwealth legislation

AD/BN-2/58 - 70 Amp DC Generation System

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Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive requires operators of Pilatus Britten‑Norman BN‑2 series aircraft with the listed modification status to replace the diodes on the port and starboard generator switches by following Pilatus Mandatory Service Bulletin BN 2‑228 Issue 1. Compliance must occur within 50 hours’ time in service after 14 February 1996.

The change is intended to increase reliability of the 70‑amp DC generation system. Operators must arrange and fund the replacements; the Civil Aviation Safety Authority enforces the directive and the UK CAA classified the service bulletin as mandatory.

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AD/BN-2/58 - 70 Amp DC Generation System

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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 Pilatus Britten-Norman BN-2 Series Aeroplanes

AD/BN-2/58 70 Amp DC Generation System 4/96 DM

Applicability: All BN2 Series aircraft with either Modification NB/M/1148, “70 amp DC Generation System”, incorporated or Modification NB/M/1571, “Introduction of Increased Rated Diode - 70 amp DC Generation System” not incorporated.

Requirement: Replace diodes on STBD and PORT GEN Switches in accordance with Pilatus Britten-Norman Mandatory Service Bulletin BN 2-228 Issue 1.

Note: Compliance with this Service Bulletin is classified Mandatory by the UK CAA.

Compliance: Within 50 hours time in service after 14 February 1996.

Background: Incorporation of this Directive will increase the circuit reliability of the 70 amp DC Generation System.

Source text

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