AD 99-24-04 C1

AD Final Rules - 992404.pdf
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AD Number:
99-24-04 C1
Document Type:
AD Final Rules
Docket Number:
99-NM-05-AD
Subject Heading:
(Correction) Airworthiness Directives; McDonnell Douglas Model DC-9-80 Series Airplanes and Model MD...Show more
Subject:
Hi-Lok Pin Fasteners
Status:
Current
Citation:
(Federal Register: December 27, 1999 (Volume 64, Number 247))
Citation Publish Date:
12/27/1999
Effective Date:
12/27/1999
Make:
The Boeing Company
Model:
DC-9-81 (MD-81) | DC-9-82 (MD-82) | DC-9-83 (MD-83) | DC-9-87 (MD-87) | MD-88
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
99-24-04
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
CORRECTION: (Federal Register: December 27, 1999 (Volume 64, Number 247); Page 72270-72272; www.access.gpo.gov/su_docs/aces/aces140.html)
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[Federal Register: December 27, 1999 (Volume 64, Number 247)]


[Rules and Regulations]


[Page 72270-72272]


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


[DOCID:fr27de99-9]


–––––––––––––––––––––––––––––––––––


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39


[Docket No. 99-NM-05-AD; Amendment 39-11428; AD 99-24-04 C1]


RIN 2120-AA64


Airworthiness Directives; McDonnell Douglas Model DC-9-80 Series Airplanes and Model MD-


88 Airplanes


AGENCY:
 
Federal Aviation Administration, DOT.


ACTION:
 
Final rule; correction.


–––––––––––––––––––––––––––––––––––


SUMMARY:
 
This document corrects information in an existing airworthiness directive (AD) that


applies to certain McDonnell Douglas Model DC-9-80 series airplanes and Model MD-88 airplanes.


That AD currently requires a one-time visual inspection to determine whether self-aligning nuts are


installed at certain locations of the aft pressure bulkhead tee; and corrective actions, if necessary. This


document corrects a typographical error in a service bulletin reference. This correction is necessary to


ensure that the appropriate service information is used to accomplish the AD.


DATES:
 
Effective December 27, 1999.


The incorporation by reference of certain publications listed in the regulations was approved


previously by the Director of the Federal Register as of December 27, 1999. (64 FR 63187,


November 19, 1999).


FOR FURTHER INFORMATION CONTACT:
 
Carl Fountain, Aerospace Engineer, Airframe


Branch, ANM-120L, FAA, Transport Airplane Directorate, Los Angeles Aircraft Certification


Office, 3960 Paramount Boulevard, Lakewood, California 90712-4137; telephone (562) 627-5222;


fax (562) 627-5210.


SUPPLEMENTARY INFORMATION:
 
Airworthiness Directive (AD) 99-24-04, amendment 39-


11428, applicable to certain McDonnell Douglas Model DC-9-80 series airplanes and Model MD-88


airplanes, was published in the Federal Register on November 19, 1999 (64 FR 63187). That AD


requires a one-time visual inspection to determine whether self-aligning nuts are installed at certain


locations of the aft pressure bulkhead tee; and corrective actions, if necessary. That AD was


prompted by reports of failures of certain Hi-Lok pin fasteners of the aft pressure bulkhead tee due to


installation of non-self-aligning nuts. The actions required by that AD are intended to prevent failure
2


of certain Hi-Lok pin fasteners and subsequent gouging of the aft pressure bulkhead tee, which could


result in fatigue cracking and reduced structural integrity of the airplane.


Need for the Correction


Information obtained recently by the FAA indicates that paragraph (a) of AD 99-24-04 contains


a typographical error. That paragraph references ''McDonnell Douglas Service Bulletin MD80-53-


201, Revision 02, dated July 20, 1998, as revised by Information Notice MD90-53-201 RO2, dated


October 21, 1998,'' as the appropriate source of service information for accomplishment of the


general visual inspection required by paragraph (a) of the AD.


The FAA has determined that a correction to paragraph (a) of AD 99-24-04 is necessary. The


correction will reference the appropriate Information Notice as ''* * * Information Notice MD80-53-


201 * * *''.


Correction of Publication


This document corrects the error and correctly adds the AD as an amendment to section 39.13 of


the Federal Aviation Regulations (14 CFR 39.13).


The AD is reprinted in its entirety for the convenience of affected operators. The effective date


of the AD remains December 27, 1999.


Since this action only a typographical error, it has no adverse economic impact and imposes no


additional burden on any person. Therefore, the FAA has determined that notice and public


procedures are unnecessary.


List of Subject in 14 CFR Part 39


Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.


Adoption of the Correction


Accordingly, pursuant to the authority delegated to me by the Administrator, the Federal


Aviation Administration amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as


follows:


PART 39–AIRWORTHINESS DIRECTIVES


1. The authority citation for part 39 continues to read as follows:


Authority: 49 U.S.C. 106(g), 40113, 44701.


§39.13 [Corrected]


2. Section 39.13 is amended by correctly adding the following airworthiness directive (AD):