AD 2017-06-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Fatigue cracking in the wing lower skin just inboard of the number 2 nacelle attach angle at wing station 175, which could adversely affect the structural integrity of the wing.
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Required Actions
Perform repetitive radiographic, electromagnetic testing high frequency (ETHF), and electromagnetic testing low frequency (ETLF) inspections for cracking of the wing lower skin at station 175, in accordance with Boeing Alert Service Bulletin DC6-57A001. Repair any cracking found before further flight.
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Compliance Time
Within the compliance times specified in Boeing Alert Service Bulletin DC6-57A001, or within the specified compliance time after the effective date of this AD if the service bulletin specifies a compliance time 'after the original issue date of this service bulletin'.
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Affected Aircraft
The Boeing Company Model DC-6, DC-6A, DC-6B, C-118A, R6D-1, and R6D-1Z airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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