AD 2025-09-10

final rule
Data completeness: 80%

Airworthiness Directives; Leonardo S.p.A. Helicopters

AD Number
2025-09-10
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. FAA-2025-0020
FR Citation
90 FR 20089

Applicability

TypeManufacturerModelDetails
aircraft Aviat Various Airworthiness Directives; Leonardo S.p.A. Helicopters

Unsafe Condition

Incorrect installation of the motor (MTR) cables and the bonding braids connected to the engine fire extinguisher bottles.

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

Required Actions

Inspect the cables and bonding braids installation. Depending on the results, disconnect and properly reinstall the affected MTR cables and bonding braids.

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

Compliance Time

Within the compliance times specified in EASA AD 2024-0193.

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

Affected Aircraft

Leonardo S.p.A. Model A109E, A109S, and AW109SP helicopters, with specific serial number ranges for A109S and AW109SP models.

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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