AD 72-09-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2A | Airworthiness Directives; Hawker Siddeley Aviation Model DH-114 Heron Airplanes |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2DA | Airworthiness Directives; Hawker Siddeley Aviation Model DH-114 Heron Airplanes |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2X | Airworthiness Directives; Hawker Siddeley Aviation Model DH-114 Heron Airplanes |
Unsafe Condition
Cracks or damage to the fuselage keel frame at fuselage station 43.25 near the wing rear spar attachment could result in structural failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 25 hours' time in service after the effective date, inspect the fuselage keel frame at fuselage station 43.25 for cracks or damage. Repeat inspections at intervals not exceeding 600 hours' time in service. Repair any found damage before further flight using ARB approved instructions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 25 hours' time in service after the effective date of this AD, unless already accomplished within the last 575 hours' time in service, and thereafter at intervals not to exceed 600 hours' time in service from the last inspection
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
De Havilland Aircraft Co., Ltd. Model D.H.114 Heron Series 2A, 2DA, 2X
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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