AD 2012-21-09

final rule
Data completeness: 70%

Airworthiness Directives; Eurocopter France Helicopters

AD Number
2012-21-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2012-1128
FR Citation
77 FR 64706

Applicability

TypeManufacturerModelDetails
aircraft Eurocopter France Airworthiness Directives; Eurocopter France Helicopters

Unsafe Condition

Missing through-hole between the integrated collector and the magnetic plug in the epicyclic module, which prevents the flow of chips from the integrated collector to the magnetic plug, potentially leading to failure of the chip-detector system and subsequent lift bearing failure.

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

Required Actions

Inspect the epicyclic module for the presence of a through-hole above the magnetic plug. If the hole is not a through-hole, replace the epicyclic module before further flight.

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

Compliance Time

Within 10 hours time-in-service (TIS)

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

Affected Aircraft

Eurocopter France Model EC225 helicopters with epicyclic modules part number 332A32-5021-00 or 332A32-5021-01 installed.

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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