Commonwealth legislation

AD/S-76/19 - Main Rotor Blade - Tip Plate Assembly Retention Bolts - Inspection and Replacement

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

5/10 complexity

This directive requires operators of all Sikorsky S‑76 series helicopters to inspect—and, if required, replace—the retention bolts for the main rotor blade tip plate assembly. It was issued after the manufacturer reported a tip cap was lost in flight.

The AD delegates inspection intervals and procedures to Sikorsky Alert Service Bulletin SB 76‑65‑23, so operators (owners, lessees, or their maintenance providers) must obtain that bulletin, perform the work, and bear the costs and downtime.

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AD/S-76/19 - Main Rotor Blade - Tip Plate Assembly Retention Bolts - Inspection and Replacement

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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 Sikorsky S-76 Series Helicopters

AD/S-76/19 Main Rotor Blade - Tip Plate Assembly Retention

Bolts - Inspection and Replacement

6/81

Applicability: All models.

Document: Sikorsky Alert SB 76-65-23. Compliance: As per requirement document.

Background: The manufacturer has advised the loss of a main rotor blade tip cap in flight.

Source text

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