AD Amdt-39-10564

final rule
Data completeness: 70%

Airworthiness Directives; Eurocopter France (Formerly Aerospatiale, Society Nationale Industrielle, Sud Aviation) Model SA- 365N, SA-365N1, SA-365N2, and SA-366G1 Helicopters

AD Number
Amdt-39-10564
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 96-SW-22-AD
FR Citation
63 FR 30378

Applicability

TypeManufacturerModelDetails
aircraft Aviat Various Airworthiness Directives; Eurocopter France (Formerly Aerospatiale, Society Nationale Industrielle, Sud Aviation) Model SA- 365N, SA-365N1, SA-365N2, and SA-366G1 Helicopters

Unsafe Condition

Cracks in the transmission deck and support beams could reduce the strength of the main gearbox strut attachment and result in failure of the main gearbox mounting.

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

Required Actions

Inspect the transmission deck for cracks; repair any cracked transmission deck; replace transmission deck support beams with redesigned support beams.

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

Eurocopter France models SA-365N, SA-365N1, SA-365N2, and SA-366G1 helicopters.

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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