AD 2021-24-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Canada Limited | Airworthiness Directives; Bell Textron Canada Limited Helicopters |
| aircraft | Bell | Textron Canada Limited | Airworthiness Directives; Bell Textron Canada Limited Helicopters |
Unsafe Condition
An in-flight failure of the main rotor (M/R) pitch link clevis (clevis) due to fatigue damage and excessive wear, which can cause increased loads on the M/R pitch link assembly and subsequent fatigue failure of the M/R clevis prior to its life limit.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the M/R clevis and rod end for wear and damage, perform corrective actions, purge grease of each universal bearing, perform a magnetic particle inspection of the M/R clevis to detect cracks, and replace any affected parts from service before further flight. Depending on the inspection results, remove and replace certain parts, and perform additional actions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours time-in-service (TIS) or 30 days, whichever occurs first after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bell Textron Canada Limited Model 430 helicopters, serial numbers 49001 through 49129.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.