Electrical Power – Emergency Electrical Network Management Unit – Modification / Re-Identification
- Published
- Takes effect
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must replace each affected EENMU with a serviceable part within 78 months from 19 November 2026, following Airbus approved instructions and applicable Service Bulletins. Additionally, certain aircraft configurations require prior or concurrent modifications per specified Airbus Service Bulletins. After modification, installation of affected parts is prohibited.
Summary
EASA Airworthiness Directive 2026-0214 is an official regulatory document addressing the Airbus A350-941 and A350-1041 aeroplanes. It focuses on the Emergency Electrical Network Management Unit (EENMU) related to the electrical power system, specifically requiring modification and re-identification of certain affected units to ensure continued airworthiness.
What changed
This new Airworthiness Directive introduces mandatory replacement and modification of affected EENMU parts with updated serviceable units to correct an identified firmware control logic issue. It also prohibits the installation of affected parts after modification and requires compliance with specific Airbus Service Bulletins for the modifications.
Why it matters
This directive is critical for aviation professionals because the identified fault in the EENMU firmware could lead to loss of all AC busbars on one emergency side, potentially compromising essential electrical power availability during flight. Compliance ensures the safety and reliability of the electrical power distribution system, which is vital for safe flight and landing operations.
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