AD 2016-18-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Cracked barrel nuts on a forward engine mount could result in reduced load capacity of the forward engine mount, separation of an engine under power from the airplane, and consequent loss of control of the airplane.
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Required Actions
Install new barrel nuts at the forward engine mounts; or identify the part number of the barrel nuts, inspect affected barrel nuts for gaps of the strut bulkhead and forward engine mount, and perform related investigative and corrective actions if necessary. Also, revise the maintenance or inspection program to include a new structurally significant item.
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Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
The Boeing Company Model 747-8 and 747-8F airplanes identified in Boeing Service Bulletin 747-71A2329, Revision 1, dated May 28, 2015.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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