AD 2021-09-19

final rule
Data completeness: 70%

Airworthiness Directives; Airbus SAS Airplanes

AD Number
2021-09-19
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. FAA-2021-0028
FR Citation
86 FR 29944

Applicability

TypeManufacturerModelDetails
aircraft Airbus SAS Airworthiness Directives; Airbus SAS Airplanes
aircraft Aviat Various Airworthiness Directives; Airbus SAS Airplanes

Unsafe Condition

Premature wear and broken bearing lock washers at the forward engine mounts, which could lead to overload of the forward engine mount beams and engine mount failure, with consequent in-flight engine detachment, and possibly result in reduced controllability of the airplane.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Replacing any forward engine mount shackle assemblies having a certain part number with a serviceable part, and re-identifying the engine mount, or replacing any forward engine mount assemblies having a certain part number, as specified in EASA AD 2020-0250.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 50 flight hours

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

All Airbus SAS Model A319-171N airplanes, Model A320-271N, -272N, and -273N airplanes, and Model A321-271N, -272N, -271NX, and -272NX airplanes.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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