AD Amdt-39-10110
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | DC-9-80 | Airworthiness Directives; McDonnell Douglas Model DC-9-80 Series Airplanes and Model MD-88 Airplanes |
Unsafe Condition
Fatigue cracking in the vertical leg of the rear spar lower cap of the wing could result in loss of the spar cap, consequent damage to the spar cap web and adjacent wing skin structure, leading to reduced structural integrity of the wing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct visual/dye penetrant and ultrasonic inspections to detect cracks in the vertical leg of the rear spar lower cap. Submit inspection results to the updated FAA office address. Perform follow-on actions as specified to correct detected cracks.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
McDonnell Douglas Model DC-9-80 series airplanes and Model MD-88 airplanes subject to the existing AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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