AD 76-16-03
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 Heron Airplanes |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2DA | Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-114 Heron Airplanes |
| aircraft | de Havilland Aircraft Co., Ltd., The | D.H.114 Heron Series 2X | Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-114 Heron Airplanes |
Unsafe Condition
Failure of the wing to fuselage attachment and loss of the wing in flight due to cracks in the upper lugs of the left and right hand side of the upper carry through boom, P/N 14FS345.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect upper lugs of the upper carry through boom for cracks using ultrasonic inspection per TNS F.19 Appendix 1. Repeat inspections at intervals not exceeding 1200 flight hours or 2 calendar years, whichever comes sooner. If cracks found, further inspect with ultrasonic and dye penetrant methods per Appendix 2. Depending on crack extent, either continue inspections with reduced intervals or replace the carry through boom and follow specific inspection schedules for replacements.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours time in service after the effective date of this AD.
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Affected Aircraft
Hawker Siddeley Aviation Limited Model DH-114 Heron airplanes, all series and approved variants.
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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