AD 86-07-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-100 Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-100B Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-100B SUD Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-200B Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-200C Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-200F Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-300 Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-400 Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-400D Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747-400F Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
Unsafe Condition
Loss of throttle control caused by an unstowed left rear fan cowl door support.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the fan cowl support strut stowage mechanism in accordance with Rolls-Royce Service Bulletin RB211-71-7254, Revision 1. Alternate means of compliance may be used if approved by the appropriate FAA office.
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Compliance Time
within 12 months after the effective date of this AD
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Affected Aircraft
Boeing Model 747 series airplanes equipped with Rolls-Royce RB211-524 engines and Lockheed Model L-1011 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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