AD 2021-18-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
Low halon concentration in the forward and aft cargo compartments due to air leakage through cargo door seals, which could affect the fire extinguishing system efficiency in the cargo compartments and possibly result in failure of the system to contain a cargo compartment fire.
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Required Actions
Replacing the forward, aft, and bulk cargo compartment door seals with new seals; installing a placard on the forward, aft, and cargo compartment doors; and for certain airplanes, implementing an operational limitation for certain routes, as specified in EASA AD 2021-0049. Additionally, repetitive cleaning and greasing of affected cargo door seals is required.
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Compliance Time
Within 50 flight hours or 12 months after the effective date of this AD, whichever occurs first.
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Affected Aircraft
All Airbus SAS Model A318, A319, A320, and A321 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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