AD 75-24-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2A | Airworthiness Directives; Hawker Siddeley Aviation Limited DH-114 Heron Airplanes |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2DA | Airworthiness Directives; Hawker Siddeley Aviation Limited DH-114 Heron Airplanes |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2X | Airworthiness Directives; Hawker Siddeley Aviation Limited DH-114 Heron Airplanes |
Unsafe Condition
Failure of the wing structure due to cracks in the inboard sections of the left and right wing main spar upper and lower flanges.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the inboard sections of the left and right wing main spar upper and lower flanges for cracks using X-ray technique per Hawker Siddeley T.N.S. No. W.6, Issue 3 (Appendix I, Issue 2 as amended June 16, 1975) or FAA-approved equivalent. If cracks are found, repair the joint per Appendix 2 of the same T.N.S. or FAA-approved method. Submit X-rays or inspection results to FAA as requested.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours' time in service after the effective date of this AD, unless already accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hawker Siddeley Aviation Limited DH-114 Heron airplanes (D.H.114 Heron Series 2A, 2DA, 2X) with Serial Numbers up to and including 14093 and Serial Number 14098, not altered per Modification 843.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.