AD 2020-20-14

final rule
Data completeness: 80%

Airworthiness Directives; Airbus Helicopters

AD Number
2020-20-14
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2020-0856
FR Citation
85 FR 63431

Applicability

TypeManufacturerModelDetails
aircraft Airbus Helicopters Model SA-365N Airworthiness Directives; Airbus Helicopters

Unsafe Condition

A sudden, strong nose-up attitude followed by intense vibrations and increased loads on the flight controls during a cruise flight, which could lead to loss of control of the helicopter.

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

Required Actions

Inspecting the main rotor servo actuators, and depending on the inspection results, replacing the affected part, applying a slippage mark, and reporting information. Inspecting the slippage mark for misalignment and, depending on the findings, replacing the affected part.

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

Compliance Time

Within 30 hours time-in-service (TIS)

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

Affected Aircraft

Airbus Helicopters Model SA-365N, SA-365N1, AS-365N2, AS 365 N3, EC 155B, EC155B1, AS350B3, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 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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