Commonwealth legislation

AD/BELL 47/59 - Main Rotor Blades

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This directive mandates periodic visual inspection of metal main rotor blades on Bell 47 series helicopters for cracking at the trailing-edge area adjacent to the root reinforcement doublers, first before 1,500 blade hours and then every 100 blade hours. It affects owners/operators, who must schedule recurring checks, bear inspection and repair costs, and may face downtime or operational adjustments to maintain airworthiness.

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AD/BELL 47/59 - Main Rotor Blades

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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 Bell Helicopter Textron 47 (All Variants) Series Helicopters

AD/BELL 47/59 Main Rotor Blades 10/65

Applicability: All model 47 series with metal main rotor blades.

Requirement: Carry out a visual inspection for cracking of the upper and lower surfaces of the main rotor blades adjacent to the outboard extremity of the root reinforcement doublers at the trailing edge.

Compliance: Before 1500 hours blade time in service and thereafter at intervals not exceeding 100 hours time in service.

Source text

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