Power Plant — Control and Monitoring Harness — Identification / Replacement
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of helicopters equipped with MAKILA 1A and 1A1 engines must identify if affected control and monitoring harnesses are installed. For helicopters with two affected parts, one must be replaced within 10 flight hours or 30 days, and the second within 4 months from 1 September 2019. For helicopters with one affected part, replacement must occur within 4 months. Installation of affected parts is prohibited from the effective date.
Summary
EASA Airworthiness Directive 2019-0209 addresses an unsafe condition in SAFRAN HELICOPTER ENGINES MAKILA 1A and 1A1 turboshaft engines, commonly installed on Airbus Helicopters AS 332 C, C1, L, and L1 models. The directive mandates identification and replacement of certain control and monitoring harnesses that were found to be incorrectly manufactured, potentially causing in-flight activation of the "85% NG" backup law. This AD ensures continued airworthiness by requiring corrective actions on affected parts.
What changed
EASA Airworthiness Directive 2019-0209 introduces mandatory replacement of specific control and monitoring harnesses identified by serial numbers due to manufacturing defects. It prohibits installation of affected parts on any engine from the effective date and allows engine installation only if no affected harness is present. This is a new regulation addressing a specific safety issue without superseding any previous directives.
Why it matters
This directive is critical for aviation professionals as it prevents potential dual-engine power loss caused by faulty harnesses, which could lead to reduced helicopter control. Operators and maintenance organizations must ensure compliance to avoid in-flight emergencies and regulatory violations. Compliance teams need to track affected parts and enforce replacement within specified timeframes to maintain aircraft airworthiness.
More for Safran MAKILA 1
All 4Get the next one by email
New ADs and bulletins for these 5 aircraft types, summarized like this page, every Monday.