AD 63-23-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC3-G102 | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
| aircraft | The Boeing Company | DC3-G102A | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
| aircraft | The Boeing Company | DC3-G103A | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
| aircraft | The Boeing Company | DC3-G202A | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
| aircraft | The Boeing Company | DC3A-S1C3G | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
| aircraft | The Boeing Company | DC3A-S1CG | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
| aircraft | The Boeing Company | DC3A-S4C4G | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
| aircraft | The Boeing Company | DC3A-SC3G | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
| aircraft | The Boeing Company | DC3A-SCG | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
| aircraft | The Boeing Company | DC3C-R-1830-90C | Airworthiness Directives; DOUGLAS all DC-3, C-41, C-41A, C-47, C-47A, C-47B, C-48, C-48A, C-49, C-49A, C-49B, C-49C, C-49D, C-49J, C-49K, C-50, C-50A, C-50B, C-50C, C-50D, C-51, C-52, C-52A, C-52B, C-52C, C-53, C-53B, C-53C, C-53D, C-68, C-117A, R4D Series except R4D-8 aircraft |
Unsafe Condition
Cracks in the wing upper attach angles and doublers along the radius of the bent-up flange and between bolt holes could result in structural failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect wing upper attach angles for cracks using a 4-power magnifying glass within 50 hours' time in service after the effective date. Reinspect at intervals not exceeding 450 hours' time in service. Replace cracked parts before further flight. At next wing removal, inspect doublers and angles with 6-power magnifying glass or dye penetrant, and maintain specified tolerances during replacement. Use specified jigs or FAA-approved equivalents for alignment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required as indicated.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Douglas DC-3 series and military variants including C-41, C-47, C-48, C-49, C-50, C-51, C-52, C-53, C-68, C-117A, R4D series except R4D-8 aircraft.
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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