AD 79-18-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-10-10 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, DC-10-10F, and DC-10-40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-10F | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, DC-10-10F, and DC-10-40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-40 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, DC-10-10F, and DC-10-40 Series Airplanes |
Unsafe Condition
Failure of the aft engine mount barrel nuts on No. 1, No. 2, and No. 3 engines could result in loss of engine support.
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Required Actions
Visually inspect the aft engine mount barrel nuts for cracking adjacent to the bolt shank; verify torque values of the engine mount bolts to the minimum specified in the DC-10 Maintenance Manual; replace cracked barrel nuts or those with unachievable torque values before further flight. Report inspection results within 24 hours.
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Compliance Time
Before further flight after August 29, 1979
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Affected Aircraft
McDonnell Douglas DC-10-10, DC-10-10F, and DC-10-40 series airplanes certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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