AD 50-43-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-6 | Airworthiness Directives; DOUGLAS All Model DC-6 Aircraft |
| aircraft | The Boeing Company | DC-6A | Airworthiness Directives; DOUGLAS All Model DC-6 Aircraft |
| aircraft | The Boeing Company | DC-6B | Airworthiness Directives; DOUGLAS All Model DC-6 Aircraft |
Unsafe Condition
Cracks in critical areas of Goodyear main wheels, Model L20HBMF, wheel assemblies 9540049 and 9540332, such as the brake drive flange, tire bead radius, tire bead seat radius, demountable flange step, and flange returning ring groove.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove tires from Goodyear main wheels Model L20HBMF, assemblies 9540049 and 9540332, and inspect critical areas using Zyglo or equivalent methods. Retire wheels if cracks are found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
On or before the next major inspection where facilities are available and in any event by December 15, 1950, unless already accomplished at last previous tire change, and thereafter at the regular major inspection nearest to 330 hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Douglas All Model DC-6 Aircraft with Goodyear main wheels, Model L20HBMF, wheel assemblies 9540049 and 9540332.
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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