AD 94-15-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Robinson Helicopter Company | R22 | Airworthiness Directives; Robinson Helicopter Company Model R22 Helicopters |
| aircraft | Robinson Helicopter Company | R22 ALPHA | Airworthiness Directives; Robinson Helicopter Company Model R22 Helicopters |
| aircraft | Robinson Helicopter Company | R22 BETA | Airworthiness Directives; Robinson Helicopter Company Model R22 Helicopters |
| aircraft | Robinson Helicopter Company | R22 MARINER | Airworthiness Directives; Robinson Helicopter Company Model R22 Helicopters |
Unsafe Condition
Corrosion or cracks in the main rotor blade skins create an unsafe condition that could result in abnormal in-flight vibrations, failure of the main rotor blade, 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
Initial inspections by a certificated mechanic using a 5-power magnifying glass for corrosion or cracks. Repetitive inspections every 100 hours TIS and checks every 25 hours TIS. Replace or repair blades if cracks or corrosion are found. Inspections must be documented in aircraft records.
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Compliance Time
Initial inspections must be done upon or prior to 525 hours TIS or 1 year TIS (whichever is earlier) for blades with less than 500 hours TIS and under 1 year installed. For blades with 500+ hours TIS or 1+ year installed, within next 25 hours TIS. Repetitive inspections every 100 hours TIS and checks every 25 hours TIS. Before further flight after abnormal vibrations.
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Affected Aircraft
Robinson Helicopter Company Model R22 helicopters equipped with main rotor blades, part number A016-2, serial numbers up to and including 7569 (all suffixes).
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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