Rotor(s) – Main Rotor Yoke – Inspection
Proposal for consultation. Not binding until EASA issues the final AD; the requirements can still change.
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of AB412 and AB412 EP helicopters must inspect affected main rotor yokes within 100 flight hours or 90 days after the directive's effective date, whichever comes first. If any damage is found, the affected part must be replaced with a serviceable component before the next flight. From the effective date, installation of affected parts is prohibited on any helicopter.
Summary
EASA Airworthiness Directive Proposal 26-094 is a proposed directive addressing the inspection of main rotor yokes on Leonardo S.p.A. AB412 and AB412 EP helicopters. It targets specific main rotor yokes manufactured by Bell Helicopter Textron that may have manufacturing defects leading to structural damage. The directive requires a one-time inspection and potential replacement of affected parts to ensure continued airworthiness.
What changed
This new proposed airworthiness directive introduces mandatory inspections of main rotor yokes marked with the Bell Helicopter Textron trademark or CAGE code 97499 installed on AB412 and AB412 EP helicopters. It requires operators to inspect for mechanical damage within 100 flight hours or 90 days and to replace any damaged parts before further flight. Additionally, it prohibits installation of affected parts from the effective date onward.
Why it matters
This directive is critical for aviation professionals as it addresses a potential unsafe condition that could lead to fatigue cracks and failure of the main rotor yoke, risking loss of helicopter control. Operators and maintenance organizations must comply to prevent structural failures and ensure flight safety. Compliance teams need to track inspection deadlines and part eligibility to maintain regulatory compliance and operational safety.
More for Leonardo S.P.A. Helicopters AB212
All 20- EASA AD 2026-0175Rotor(s) – Main Rotor Yoke – InspectionSep 10, 2026
- EASA AD 2015-0226R8Equipment / Furnishings — Hoist — Test / ReplacementJul 16, 2025
- EASA AD 2024-0228[Correction] Equipment / Furnishings — Hoist — InspectionMay 30, 2025
- EASA AD US-2024-20-07Equipment / Furnishings - Emergency Float Kit Activation Handle - Repetitive Inspections / ReplacementNov 29, 2024
- EASA AD 2024-0212Rotorcraft Flight Manual — Normal Procedures — AmendmentNov 13, 2024
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New ADs and bulletins for Leonardo S.P.A. Helicopters AB212, S.P.A. Helicopters AB412, AB412 and AB412 EP, summarized like this page, every Monday.