AD 2016-23-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Various | Restricted Category | Airworthiness Directives; Various Restricted Category Helicopters |
Unsafe Condition
A crack in the main rotor (M/R) blade, which could result in failure of the M/R blade and subsequent loss of helicopter control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Clean and visually inspect the upper and lower exposed surfaces of each M/R blade from the butt end to three inches outboard of the doublers. Inspect the lower grip pad and upper and lower grip plates for cracks and corrosion. Inspect layered doublers and blade skin from blade stations 24.5 to 35 for cracks and corrosion. Repair or replace M/R blades as necessary.
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 2 weeks, whichever occurs first, and thereafter at intervals not to exceed 25 hours TIS or 2 weeks.
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Affected Aircraft
Model TH-1F, UH-1B, UH-1F, UH-1H, and UH-1P helicopters with main rotor (M/R) blade, part number 204-011-250-005 or 204-011-250-113, installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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