AD 2021-20-18

final rule
Data completeness: 70%

Airworthiness Directives; Leonardo S.p.a. Helicopters

AD Number
2021-20-18
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2021-0837
FR Citation
86 FR 57751

Applicability

TypeManufacturerModelDetails
aircraft Leonardo S.p.a. Airworthiness Directives; Leonardo S.p.a. Helicopters

Unsafe Condition

The passenger cabin windows on a batch of helicopters were improperly installed during production. The gasket was bonded to the window (or on both sides) instead of to the door frame.

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

Required Actions

Remove and reinstall the left-hand and right-hand windows by following certain procedures in the service information. Remove those parts from service instead of discarding them.

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

Compliance Time

Within 100 hours time-in-service after the effective date of this AD

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

Affected Aircraft

Leonardo S.p.A. Helicopters, Model AW119MKII helicopters, serial numbers 14831, 14834, 14838, 14840, 14841, 14842, 14843, 14844, 14901, 14904, 14905, 14906, and 14918.

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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