AD 2020-05-23

final rule
Data completeness: 80%

Airworthiness Directives; Airbus Helicopters

AD Number
2020-05-23
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2019-0882
FR Citation
85 FR 15933

Applicability

TypeManufacturerModelDetails
aircraft Airbus Helicopters Model AS332C Airworthiness Directives; Airbus Helicopters

Unsafe Condition

Elongation of the attachment screws and loss of tightening torque of the nut, which could result in structural failure of an MGB attachment fitting and detachment of an MGB suspension bar.

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

Required Actions

Inspecting the number of threads that protrude beyond the bolt of the attachment screws on the RH and LH rear attachment fittings of the MGB, and depending on findings, accomplishment of applicable corrective actions, including applying a sealing compound on the nuts, and convex and concave washers, measuring the height of the protruding threads, inspecting the tightening torque of the nuts, inspecting the upper and lower convex and concave washers, measuring and inspecting removed attachment screws, and replacing affected parts.

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

Compliance Time

Before further flight

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Affected Aircraft

Airbus Helicopters Model AS332C, AS332C1, AS332L, and AS332L1 helicopters, delivered to the first owner or customer before September 1, 2018, and with attachment screws part number (P/N) 330A22013520 installed with main gearbox (MGB) right hand (RH) side rear attachment fitting P/N 330A22270207 and left hand (LH) side rear attachment fitting P/N 330A22270206 of the MGB suspension bars.

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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