Commonwealth legislation

AD/DAUPHIN/20 - Main Rotor Servo Inspection

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This directive requires repeated safety inspections of main rotor servos on certain Eurocopter/Aerospatiale Dauphin helicopters to detect longitudinal cracks in servo rod flared ends that could cause loss of flight control. It affects owners/operators of listed Dauphin models and requires daily or frequent checks and a one-time detailed inspection of installed and replacement servos, using the procedures in Aerospatiale Service Bulletin No. 05.11 to ensure continued airworthiness.

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Current sections

Direct links to the current provisions in AD/DAUPHIN/20 - Main Rotor Servo Inspection.

AD/DAUPHIN/20 - Main Rotor Servo Inspection

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters

AD/DAUPHIN/20 Main Rotor Servo Inspection 12/87

Applicability: All model SA 360, SA 361, SA 365C, C1, C2 and C3 helicopters. Requirement: Action in accordance with Aerospatiale SA 360 and SA 365 S.B. No 05.11.

Compliance: 1. For Para 1C(1) of Requirement document. Unless already accomplished at receipt of AD and at each “after last flight” inspection each day. Inspection intervals not to exceed 10 flight hours.

For Para 1C(2) of Requirement document. Prior to completion of 400 flying hours from 31 August 1987.

Note: Inspect new and overhauled servos in accordance with 1 above.

Background: Longitudinal cracks starting from between two notches used to lock the servo rod end nut have been found in the main control flared end.

Source text

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

1 AD/DAUPHIN/20 - Main Rotor Servo Inspection