AD 86-01-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD Helicopters, Inc. | 369 | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369A | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369D | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369E | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369F | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369FF | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369H | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369HE | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369HM | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369HS | Airworthiness Directives; HUGHES HELICOPTERS, INC. (Hughes Helicopters) Model 369 Series Helicopters |
Unsafe Condition
Loss of a tail rotor blade tip cap in flight and subsequent loss of tail rotor control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove, inspect, and modify blades in accordance with specified service information notices. An alternate method of compliance may be used if approved by the Manager of the Western Aircraft Certification Office. Special flight permits may be issued under FAR Sections 21.197 and 21.199 for ferrying to a maintenance base.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours time in service after the effective date of this AD, unless already accomplished
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Affected Aircraft
Hughes Helicopters Model 369 series helicopters including military Models YOH-6A and OH-6A, equipped with specific tail rotor blade part numbers and serial numbers as listed in the AD.
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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