AD Amdt-39-11472

final rule
Data completeness: 70%

Airworthiness Directives; Agusta S.p.A. Model A109A and A109A II Helicopters

AD Number
Amdt-39-11472
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 99-SW-64-AD
FR Citation
64 FR 71009

Applicability

TypeManufacturerModelDetails
aircraft Agusta S.p.A. Model A109A and A109A II Airworthiness Directives; Agusta S.p.A. Model A109A and A109A II Helicopters

Unsafe Condition

Fatigue failure of the tail rotor blade, leading to loss of the tail rotor and subsequent loss of control of the helicopter.

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

Required Actions

Before further flight, dye-penetrant inspect each tail rotor blade (P/N 109-0132-02) with 400 or more hours time-in-service for a crack. Replace any cracked blade with an airworthy blade. Visually inspect each blade before the first flight of each day using a 3 to 5 power magnifying glass. Thereafter, dye-penetrant inspect each blade at intervals not to exceed 100 hours time-in-service.

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

Agusta S.p.A. Model A109A and A109A II helicopters with tail rotor blade (P/N 109-0132-02) installed and with 400 or more hours time-in-service.

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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