AD 2026-05-09 for Airbus Helicopters addresses an unsafe condition of potential failure of rear cargo compartment draining system hoses due to hot air leakage from an engine combustion chamber drain valve failure.

This new AD applies to all Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters.

Effective Date: March 25, 2026.

View the full AD and docket in the FAA Dynamic Regulatory System (DRS) or on regulations.gov under Docket FAA-2026-2290.

Stay updated on rotorcraft airworthiness directives—check our Rotorcraft Network and AD Summaries archive for future posts on Airbus, Bell, Sikorsky, and other models.