AD 99-08-22
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-10-10 | Airworthiness Directives; McDonnell Douglas Model DC-10 Series Airplanes and KC-10 (Military) Airplanes |
| aircraft | The Boeing Company | DC-10-10F | Airworthiness Directives; McDonnell Douglas Model DC-10 Series Airplanes and KC-10 (Military) Airplanes |
| aircraft | The Boeing Company | DC-10-15 | Airworthiness Directives; McDonnell Douglas Model DC-10 Series Airplanes and KC-10 (Military) Airplanes |
| aircraft | The Boeing Company | DC-10-30 | Airworthiness Directives; McDonnell Douglas Model DC-10 Series Airplanes and KC-10 (Military) Airplanes |
| aircraft | The Boeing Company | DC-10-30F (KC-10A, KDC-10) | Airworthiness Directives; McDonnell Douglas Model DC-10 Series Airplanes and KC-10 (Military) Airplanes |
| aircraft | The Boeing Company | DC-10-40 | Airworthiness Directives; McDonnell Douglas Model DC-10 Series Airplanes and KC-10 (Military) Airplanes |
| aircraft | The Boeing Company | DC-10-40F | Airworthiness Directives; McDonnell Douglas Model DC-10 Series Airplanes and KC-10 (Military) Airplanes |
Unsafe Condition
Fatigue cracking of the rear spar cap of the horizontal stabilizer could result in reduced structural integrity of the horizontal stabilizer and consequent reduced controllability of the airplane.
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Required Actions
Conduct repetitive penetrant or high frequency eddy current inspections to detect fatigue cracking of the rear spar cap of the horizontal stabilizer and repair if necessary. Install a preventive modification of the rear spar cap, which terminates the repetitive inspections.
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Compliance Time
Within 5 years or prior to the accumulation of 18,000 landings, whichever occurs later.
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Affected Aircraft
McDonnell Douglas Model DC-10 series airplanes and KC-10 (military) airplanes including DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A, KDC-10), DC-10-40, DC-10-40F.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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