AD 2003-19-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | France Model AS 365 N3 and EC 155B | Airworthiness Directives; Eurocopter France Model AS 365 N3 and EC 155B Helicopters |
Unsafe Condition
Failure of the Fenestron pitch change control rod (P/N 365A33-6161-21) could lead to loss of control of the tail rotor and subsequent loss of control of the helicopter.
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Required Actions
Remove the control rod, P/N 365A33-6161-21, and replace it with a reinforced steel control rod, P/N 365A33-6214-20, according to the specified compliance times based on time-in-service (TIS).
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Compliance Time
Varies based on TIS: Before further flight for 700 or more TIS; within 20 hours TIS for 500-699 TIS; within 30 hours TIS for 271-499 TIS.
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Affected Aircraft
Eurocopter France Model AS 365 N3 helicopters with MOD 0764B39 (Quiet Fenestron) and Model EC 155B helicopters with tail rotor pitch change control rod, P/N 365A33-6161-21, installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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