AD 84-13-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-8-11 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
| aircraft | The Boeing Company | DC-8-12 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
| aircraft | The Boeing Company | DC-8-21 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
| aircraft | The Boeing Company | DC-8-31 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
| aircraft | The Boeing Company | DC-8-32 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
| aircraft | The Boeing Company | DC-8-33 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
| aircraft | The Boeing Company | DC-8-41 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
| aircraft | The Boeing Company | DC-8-42 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
| aircraft | The Boeing Company | DC-8-43 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
| aircraft | The Boeing Company | DC-8-51 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-11 through -61 Series Airplanes |
Unsafe Condition
Failure of the wing front spar lower cap.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform an initial inspection within 300 flight hours or upon reaching 30,000 flight hours or 14,000 landings, whichever occurs later, per Service Bulletin 57-89. Repeat inspections every 3,600 flight hours if no cracks are found. Modify the aircraft by enlarging and stress-coining attachment holes and installing angles per the service bulletin to discontinue repetitive inspections. Repair cracks as specified in the service bulletin.
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Compliance Time
Within 300 flight hours or upon the accumulation of either 30,000 flight hours or 14,000 landings, whichever occurs later, after the effective date of this AD.
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Affected Aircraft
McDonnell Douglas Model DC-8-11 through -61 series airplanes certificated in all categories, having accumulated 30,000 flight hours or 14,000 landings.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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