AD 2024-07-51
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
Manufacturing defect in certain serial-numbered tail rotor (T/R) blades part number 429-016-101-105, resulting in the presence of stress risers and potential fatigue cracking in the T/R blade abrasion strip.
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Required Actions
Repetitively inspect and check the T/R blade abrasion strip on affected T/R blades. Depending on results, replace or mark the T/R blade. Prohibit installing affected T/R blades on any helicopter.
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Compliance Time
Within 50 flight hours after the effective date of June 10, 2024.
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Affected Aircraft
Bell Textron Canada Limited Model 429 helicopters, serial number 57001 and subsequent, with T/R blade part number 429-016-101-105 having a serial number identified in Table 1 of Bell Alert Service Bulletin 429-24-63.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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