AD 2000-18-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Various | Airworthiness Directives; Bell Helicopter Textron, Inc. Model 412, 412EP, and 412CF Helicopters |
| aircraft | Bell | Helicopter Textron | Airworthiness Directives; Bell Helicopter Textron, Inc. Model 412, 412EP, and 412CF Helicopters |
Unsafe Condition
Fatigue crack in the upper left-hand cap angle (part number 212-030-191-001) and adjacent structure, which could lead to failure of the cap angle, loss of the tailboom, 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
Inspect the cap angle and adjacent structure for cracks within 25 hours time-in-service (TIS) and thereafter at intervals not exceeding 100 hours TIS. Replace any cracked cap angle with an airworthy part before further flight. Repair any cracked adjacent structure before further flight. Report any cracks found to the Manager of the Rotorcraft Certification Office within 10 days of inspection.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours time-in-service (TIS) and thereafter at intervals not exceeding 100 hours TIS.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bell Helicopter Textron, Inc. Model 412, 412EP, and 412CF helicopters with upper left-hand cap angle (part number 212-030-191-001) installed, certificated in any category.
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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