Commonwealth legislation

AD/B-2/23 - Main Rotor Blades - Inspection and Replacement

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires owners/operators of all Brantly B‑2 helicopters to inspect main rotor blade inboard ends for skin‑to‑foam separation (by feel and coin‑sounding) before each flight, perform a 5× lens check for cracks at intervals ≤25 flight hours until upgraded blades are fitted, and replace specified blade part numbers with approved replacements. Pilots may perform and certify the pre‑flight check (Para.1); owners pay for recurring inspections and any mandatory blade replacements (Para.2–3).

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Direct links to the current provisions in AD/B-2/23 - Main Rotor Blades - Inspection and Replacement.

AD/B-2/23 - Main Rotor Blades - Inspection and Replacement

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Brantly B-2 Series Helicopters

AD/B-2/23 Main Rotor Blades - Inspection NK and Replacement

Applicability: All model B-2.

Requirement: 1. Inspect the inboard ends of the blades for separation between the blade skin and the foam filler. The inspection is to be made by feel and by sounding the blade skin with a large coin or similar metal object. A feeling of sponginess or a dull sound indicates presence of separation.

2. With the aid of a lens of not less than 5X power inspect the inboard end of the blade skins for cracks between the rivet heads.

3. Replace blades P/N B2-248-53 and B2-248-53A, with blades P/N B2-248-53M or B2-248-101; or

FAA AD 61-23-1.

Compliance: For Para. 1 - Before each flight. (This inspection may be performed and certified by the pilot).

For Para. 2 - At intervals not exceeding 25 hours time in service until blades P/N B2-248-53M or B2-248-101 have been fitted.

For Para. 3 - For aircraft now on Australian Register replace before further flight if separation more than 12 inches in length is present or if cracks are found around two or more rivet heads, and for new aircraft replace before the issue of C. of A.

Source text

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

1 AD/B-2/23 - Main Rotor Blades - Inspection and Replacement