AD 2021-16-05

Recurring final rule
Data completeness: 80%

Airworthiness Directives; Airbus Helicopters

AD Number
2021-16-05
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2021-0379
FR Citation
86 FR 50226

Applicability

TypeManufacturerModelDetails
aircraft Airbus Helicopters Model AS332L2 and Model EC225LP Airworthiness Directives; Airbus Helicopters
aircraft Aviat Various Airworthiness Directives; Airbus Helicopters

Unsafe Condition

Failure of the main rotor system, which would result in loss of control of the helicopter.

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

Required Actions

Replacing certain second stage planet gear assemblies, removing certain epicyclic modules, installing a full flow magnetic plug (FFMP), revising the existing rotorcraft flight manual (RFM) for your helicopter, repetitively inspecting the main gearbox (MGB) particle detectors, repetitively inspecting the MGB oil filter and oil cooler, and corrective action if necessary, as specified in a European Union Aviation Safety Agency (EASA) AD.

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

Compliance Time

Before further flight

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

Affected Aircraft

All Airbus Helicopters Model AS332L2 and EC225LP helicopters.

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

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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