An Airbus A220-300 being fueled.
Transport Canada issued an emergency airworthiness directive (AD) requiring detailed visual inspections of Airbus A220-100/300 main landing gear for the possibility of a missing fuse pin.
The Canadian authority said that during scheduled maintenance, one of the pintle fuse pins in the left-hand main landing gear of an A220 narrowbody airliner was discovered to be missing.
“A missing or damaged pintle fuse pin would lead to a significant redistribution of loads in the main landing gear (MLG) assembly and reduce the capability of the MLG assembly to withstand those loads, potentially resulting in the collapse of the MLG during takeoff,” Transport Canada said.
Effective Aug. 3, the emergency AD (CF-2024-28) requires that within 24 flight cycles from the effective date, maintainers perform a detailed visual inspection of the pintle housing assembly to verify that the pintle fuse pins are present and correctly installed. They should contact Airbus Canada “for an approved disposition” in any case in which a pintle fuse pin is incorrectly installed or missing.
The directive applies to Airbus (formerly Bombardier CSeries) A220-100s (Model BD-500-1A10), serial numbers 50001 through 50065 and 50067 through 50076; and A220-300s (Model BD-500-1A11), serial numbers 55001 through 55284, 55286 and 55289.
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