EASA AD 2025-0034: Fire Protection — Engine Fire Extinguisher Bottles — Modification

What to do

Operators of Airbus A330-841 and A330-941 aircraft with affected fire extinguisher bottles must replace or modify these parts within 30 months from 26 February 2025. They must also ensure that affected parts are not reinstalled after modification or from the effective date for aircraft without affected parts. Compliance should follow the instructions in Airbus Service Bulletin A330-26-3076 and related Meggitt Safety Systems documentation.

Summary

EASA Airworthiness Directive 2025-0034 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus A330-841 and A330-941 aeroplanes. It addresses the modification of engine fire extinguisher bottles with specific part numbers to ensure continued safety and compliance. The directive mandates replacement or modification of certain fire extinguisher bottles susceptible to stress corrosion cracking.

What changed

This new airworthiness directive introduces a requirement to replace or modify fire extinguisher bottles with Part Number 34500063-11 installed on Airbus A330-841 and A330-941 aircraft. It prohibits the reinstallation of these affected parts and mandates the use of serviceable parts with Part Number 34500074-11. The directive also provides instructions for modification and reidentification of affected parts as an acceptable compliance method.

Why it matters

This directive is critical for aviation professionals because it addresses a potential safety risk due to cracks found on fire extinguisher bottles, which could compromise fire protection systems. Operators and maintenance organizations must ensure compliance to avoid operating aircraft with unsafe components, thereby maintaining regulatory compliance and ensuring passenger and crew safety. The directive also impacts inventory management by restricting the use of certain parts.

What to do

Summary

What changed

Why it matters

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