AD 61-23-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2A | Airworthiness Directives; de Havilland Model 114 Heron Series Aircraft |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2DA | Airworthiness Directives; de Havilland Model 114 Heron Series Aircraft |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2X | Airworthiness Directives; de Havilland Model 114 Heron Series Aircraft |
Unsafe Condition
Cracking of the wing rear false spar web adjacent to the wing-to-fuselage attachment P/N 14W253/4
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct an X-ray or visual inspection for cracks in accordance with de Havilland Technical News Sheet CT(114) No. W.10 Issue 2 within 250 hours' time in service after the effective date. Repeat inspections every 600 hours' time in service. Repair cracks as specified: less than 1/2 inch within next wing removal, 1/2 to 1 1/2 inches within 300 hours, and over 1 1/2 inches within 150 hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 250 hours' time in service after the effective date of this directive and at each 600 hours' time in service thereafter
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Affected Aircraft
de Havilland Aircraft Co., Ltd., D.H.114 Heron Series 2A, D.H.114 Heron Series 2DA, D.H.114 Heron Series 2X aircraft without Modification No. 1454
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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