AD 98-07-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Westland Helicopters Limited | Westland 30 Series 100 | Airworthiness Directives; GKN Westland Helicopters Limited WG-30 Series 100 and 100-60 Helicopters |
| aircraft | Westland Helicopters Limited | Westland 30 Series 100-60 | Airworthiness Directives; GKN Westland Helicopters Limited WG-30 Series 100 and 100-60 Helicopters |
Unsafe Condition
Failure of a main rotor tie-bar due to bulging or swelling caused by water ingress into the blade sleeve, leading to loss of a 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
Visually inspect all main rotor head tie-bars for bulging or swelling in accordance with specified steps, replace if necessary. Thereafter, replace each tie-bar at intervals not exceeding 220 hours time-in-service with an airworthy tie-bar.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
GKN Westland Helicopters Limited Westland 30 Series 100 and 100-60 helicopters with main rotor head and spider assemblies, part number WG1369-0062-all dash numbers, and main rotor head assemblies, P/N WG3069-0011 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 8, 2026
Rights: U.S. Government Public Domain
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