AD 86-07-03
final rule
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 |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747SP Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | 747SR Series | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | L-1011-385-1 | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | L-1011-385-1-14 | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | L-1011-385-1-15 | Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes |
| aircraft | The Boeing Company | Lockheed Martin Corporation | L-1011-385-3 | 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.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 12 months after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
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.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Fan Cowl Support Strut Stowage Mech.
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_86-07-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 86-07-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes Subject: Fan Cowl Support Strut Stowage Mech. Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/10/1986 Make: The Boeing Company | Lockheed Martin Corporation Model: 747-100 Series | 747-100B Series | 747-100B SUD Series | 747-200B Series | 747-200C Series | 747-200...Show more Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 86-07-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5276 AD NUMBER: 86-07-03 SUBJECT HEADING: Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes ACTION: SUMMARY: DATES: Effective May 10, 1986. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 86-07-03 BOEING AND LOCKHEED-CALIFORNIA COMPANY: Amendment 39-5276. Applies to all Boeing Model 747 series airplanes equipped with Rolls-Royce RB211-524 engines, and all Lockheed Model L-1011 series airplanes, certificated in any category. To prevent loss of throttle control caused by an unstowed left rear fan cowl door support, accomplish the following within 12 months after the effective date of this AD, unless already accomplished: A. Modify the fan cowl support strut stowage mechanism in accordance with Rolls-Royce Service Bulletin RB211-71-7254, Revision 1, dated December 7, 1984. B. Alternate means of compliance which provides an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region, for Boeing Model 747 airplanes; or the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region, for Lockheed Model L-1011 airplanes. C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of the modification required by this AD. All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124; the Lockheed-California Company, P.O. Box 551, Burbank, California 91520; or from Service Modification Engineer, RB211 Propulsion Systems, Rolls-Royce Limited, P.O. Box 31, Derby, England. These documents also may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington; or the Los Angeles Aircraft Certification Office, 4344 Donald Douglas Drive, Long Beach, California. This amendment becomes effective May 10, 1986. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_86-07-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 86-07-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes Subject: Fan Cowl Support Strut Stowage Mech. Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/10/1986 Make: The Boeing Company | Lockheed Martin Corporation Model: 747-100 Series | 747-100B Series | 747-100B SUD Series | 747-200B Series | 747-200C Series | 747-200...Show more Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 86-07-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5276 AD NUMBER: 86-07-03 SUBJECT HEADING: Boeing Model 747 Series Airplanes and Lockheed Model L-1011 Series Airplanes ACTION: SUMMARY: DATES: Effective May 10, 1986. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 86-07-03 BOEING AND LOCKHEED-CALIFORNIA COMPANY: Amendment 39-5276. Applies to all Boeing Model 747 series airplanes equipped with Rolls-Royce RB211-524 engines, and all Lockheed Model L-1011 series airplanes, certificated in any category. To prevent loss of throttle control caused by an unstowed left rear fan cowl door support, accomplish the following within 12 months after the effective date of this AD, unless already accomplished: A. Modify the fan cowl support strut stowage mechanism in accordance with Rolls-Royce Service Bulletin RB211-71-7254, Revision 1, dated December 7, 1984. B. Alternate means of compliance which provides an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region, for Boeing Model 747 airplanes; or the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region, for Lockheed Model L-1011 airplanes. C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of the modification required by this AD. All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124; the Lockheed-California Company, P.O. Box 551, Burbank, California 91520; or from Service Modification Engineer, RB211 Propulsion Systems, Rolls-Royce Limited, P.O. Box 31, Derby, England. These documents also may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington; or the Los Angeles Aircraft Certification Office, 4344 Donald Douglas Drive, Long Beach, California. This amendment becomes effective May 10, 1986. FOOTER:
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Retrieved: Apr 8, 2026
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