AD 85-21-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-8-71 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-71, -72, and -73 Series Airplanes |
| aircraft | The Boeing Company | DC-8-72 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-71, -72, and -73 Series Airplanes |
| aircraft | The Boeing Company | DC-8-73 | Airworthiness Directives; McDONNELL DOUGLAS DC-8-71, -72, and -73 Series Airplanes |
Unsafe Condition
Inflight shutdowns due to oil loss
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Required Actions
Modify at least one engine on each side of the airplane within 18 months or 3,000 landings, and complete modifications on all engines within 36 months or 6,000 landings, following McDonnell Douglas Service Bulletin 71-96 or approved revisions.
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Compliance Time
Within eighteen (18) months or three thousand (3,000) landings, whichever occurs earlier, after the effective date of this AD, and complete modifications on all engines within thirty-six (36) months or six thousand (6,000) landings, whichever occurs earlier after the effective date of this AD.
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Affected Aircraft
McDonnell Douglas Model DC-8-71, -72, and -73 series airplanes certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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