AD 2006-09-06 R1

AD Final Rules - 2006-09-06 R1.pdf
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AD Number:
2006-09-06 R1
Document Type:
AD Final Rules
Docket Number:
FAA-2006-25327
Subject Heading:
Airworthiness Directives; Boeing Model 747-100, 747-100B, 747- 100B SUD, 747-200B, 747-300, 747-400,...Show more
Subject:
Lower lobe fuselage frames
Status:
Current
Citation:
(Federal Register: December 7, 2006 (Volume 71, Number 235))
Citation Publish Date:
12/07/2006
Effective Date:
06/07/2006
Make:
The Boeing Company
Model:
747-100 Series | 747-100B Series | 747-100B SUD Series | 747-200B Series | 747-300 Series | 747-400 Series | 747-400D Series | 747SR Series
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
2006-09-06
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
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[Federal Register: December 7, 2006 (Volume 71, Number 235)]


[Rules and Regulations]


[Page 70857-70859]


From the Federal Register Online via GPO Access [wais.access.gpo.gov]


[DOCID:fr07de06-2]


–––––––––––––––––––––––––––––––––––


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39


[Docket No. FAA-2006-25327; Directorate Identifier 2006-NM-116-AD; Amendment 39-14842;


AD 2006-09-06 R1]


RIN 2120-AA64


Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-300,


747-400, 747-400D, and 747SR Series Airplanes


AGENCY:
 
Federal Aviation Administration (FAA), Department of Transportation (DOT).


ACTION:
 
Final rule.


–––––––––––––––––––––––––––––––––––


SUMMARY:
 
The FAA is revising an existing airworthiness directive (AD) that applies to certain


Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-300, 747-400, 747-400D, and


747SR series airplanes. That AD currently requires repetitive inspections to detect cracking of certain


lower lobe fuselage frames, and repair if necessary. This new AD specifies appropriate service


information for certain corrective actions. This AD results from reports indicating that fatigue cracks


were found in lower lobe frames on the left side of the fuselage. We are issuing this AD to detect and


correct fatigue cracking of certain lower lobe fuselage frames, which could lead to fatigue cracks in


the fuselage skin, and consequent rapid decompression of the airplane.


DATES:
 
The effective date of this AD is June 7, 2006.


On June 7, 2006 (71 FR 25926, May 3, 2006), the Director of the Federal Register approved the


incorporation by reference of Boeing Alert Service Bulletin 747-53A2408, Revision 1, dated April 4,


2002.


On May 5, 1999 (64 FR 15298, March 31, 1999), the Director of the Federal Register approved


the incorporation by reference of Boeing Alert Service Bulletin 747-53A2408, dated April 25, 1996.


ADDRESSES:
 
You may examine the AD docket on the Internet at
 
http://dms.dot.gov
 
or in person at


the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW.,


Nassif Building, Room PL-401, Washington, DC.


Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-2207, for


service information identified in this AD.


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FOR FURTHER INFORMATION CONTACT:
 
Ivan Li, Aerospace Engineer, Airframe Branch,


ANM-120S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton,


Washington 98057-3356; telephone (425) 917-6437; fax (425) 917-6590.


SUPPLEMENTARY INFORMATION:


Examining the Docket


You may examine the AD docket on the Internet at
 
http://dms.dot.gov
 
or in person at the Docket


Management Facility office between 9 a.m. and 5 p.m., Monday through Friday, except Federal


holidays. The Docket Management Facility office (telephone (800) 647-5227) is located on the plaza


level of the Nassif Building at the street address stated in the ADDRESSES section.


Discussion


The FAA proposed to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) with


an airworthiness directive (AD) to revise AD 2006-09-06, amendment 39-14576 (71 FR 25926, May


3, 2006). The existing AD applies to certain Boeing Model 747-100, 747-100B, 747-100B SUD, 747-


200B, 747-300, 747-400, 747-400D, and 747SR series airplanes. The proposed AD was published in


the Federal Register on July 13, 2006 (71 FR 39600) to require repetitive inspections to detect


cracking of certain lower lobe fuselage frames, and repair if necessary, and to specify appropriate


service information for certain corrective actions.


Comments


We provided the public the opportunity to participate in the development of this AD. We have


considered the comments received.


Support for the Proposed AD


Boeing supports the proposed AD.


Request To Change Incorporation of Certain Information


The Modification and Replacement Parts Association (MARPA) states that, typically,


airworthiness directives are based on service information originating with the type certificate holder


or its suppliers. MARPA adds that manufacturer service documents are privately authored


instruments generally having copyright protection against duplication and distribution. MARPA notes


that when a service document is incorporated by reference into a public document, such as an


airworthiness directive, it loses its private, protected status and becomes a public document. MARPA


adds that if a service document is used as a mandatory element of compliance, it should not simply be


referenced, but should be incorporated into the regulatory document; by definition, public laws must


be public, which means they cannot rely upon private writings. MARPA is concerned that the failure


to incorporate essential service information could result in a court decision invalidating the AD.


MARPA adds that incorporated by reference service documents should be made available to the


public by publication in the Docket Management System (DMS), keyed to the action that


incorporates them. MARPA notes that the stated purpose of the incorporation by reference method is


brevity, to keep from expanding the Federal Register needlessly by publishing documents already in


the hands of the affected individuals; traditionally, ''affected individuals'' means aircraft owners and


operators, who are generally provided service information by the manufacturer. MARPA adds that a


new class of affected individuals has emerged, since the majority of aircraft maintenance is now


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