AD 77-15-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2A | Airworthiness Directives; Hawker Siddeley Aviation, Limited Model DH-114 Airplanes |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2DA | Airworthiness Directives; Hawker Siddeley Aviation, Limited Model DH-114 Airplanes |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2X | Airworthiness Directives; Hawker Siddeley Aviation, Limited Model DH-114 Airplanes |
Unsafe Condition
Possible seizure of the main landing gear damper ram, P/N AC11164, leading to consequent damage to the aircraft upon landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the damper ram in accordance with Part A of Dunlop Aviation Division Service Bulletin 32-824, and reidentify it as P/N AC65528, Mod. 1.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 300 hours time in service after the effective date of this AD
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Affected Aircraft
Hawker Siddeley Aviation, Limited Model DH-114 airplanes certificated in all categories
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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