EASA SIB 2016-07: Airbus A319, A320 and A321 Aeroplanes — IAE Engine Fire Extinguisher Pipe Cracking

What to do

Affected operators are recommended to modify their aircraft in accordance with Airbus SB A320-26-1072 Revision 02 or later to install additional clamps and prevent pipe cracking. Operators should verify if their aircraft have Airbus modification 38110, which negates the need for this action if the configuration has not changed since delivery. For aircraft with prior repairs in the affected area, consultation with Airbus Repair Support is advised. There are no mandatory compliance deadlines as this bulletin provides non-mandatory recommendations.

Summary

EASA Safety Information Bulletin 2016-07 is an airworthiness bulletin addressing cracking issues in the engine fire extinguisher pipes on Airbus A319, A320, and A321 aeroplanes equipped with International Aero Engines (IAE) V2500 series engines. The bulletin highlights reports of fatigue cracks caused by high vibration and insufficient pipe support, affecting specific pipe part numbers and serial numbers. It provides information on Airbus service bulletins and modifications aimed at preventing these cracks.

What changed

The bulletin introduces recommendations to install two additional clamps on the fire extinguisher pipes as per Airbus Service Bulletin A320-26-1072 Revision 02 to prevent cracking. It also notes that Airbus modification 38110, incorporated from MSN 3375 onwards, addresses this issue in production aircraft. Additionally, it clarifies that some aircraft may require prior compliance with Airbus SB A320-26-1031 depending on the installed pipe part number.

Why it matters

This information is important for aviation professionals because cracking in the engine fire extinguisher pipes could compromise the reliability of the fire suppression system, a critical safety component. Operators and maintenance organizations need to be aware of the potential for fatigue damage and the necessary modifications to maintain airworthiness. Understanding these recommendations helps ensure continued safety and compliance without mandatory regulatory action at this time.