Commonwealth legislation

AD/ENST 28/21 - Tail Rotor Blade Grip - Inspection and Modification

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires owners/operators of Enstrom F‑28C and 280C helicopters with the wide‑chord tail rotor blade grip (P/N 28‑150013‑1) to inspect and, if necessary, modify or replace that grip by following Enstrom Service Directive Bulletin No. 0048 because of reported crack indications. It shifts technical detail to the manufacturer’s bulletin, leaves compliance costs to operators, and allows pilots to perform the preflight check without certification.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/ENST 28/21 - Tail Rotor Blade Grip - Inspection and Modification.

AD/ENST 28/21 - Tail Rotor Blade Grip - Inspection and Modification

meta-content-style-type: text/css meta-content-type: application/xhtml+xml; charset=utf-8 meta-generator: Aspose.Words for .NET 22.10.0

?xml version="1.0" encoding="utf-8" standalone="no"?>

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Enstrom F-28 Series Helicopters

AD/ENST 28/21 Tail Rotor Blade Grip - Inspection

and Modification

5/79

Applicability: All models F-28C and 280C with Tail Rotor Blade Grip P/N 28-150013-1 wide chord.

Document: Enstrom Service Directive Bulletin No. 0048. Compliance: As per requirement document.

The Preflight Inspections may be carried out by the pilot in command in which case certification is not required.

Background: The manufacturer has received several field reports of crack indications being found in the wide chord tail rotor blade retentions grip.

Source text

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