AD 2000-15-17 R1

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AD Number:
2000-15-17 R1
Document Type:
AD Final Rules
Docket Number:
99-NM-227-AD
Subject Heading:
Airworthiness Directives; McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87); Model MD-88 Airplanes; and M... ...Show more
Subject:
Hydraulic Pipe Assembly in the Aft Fuselage
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
09/12/2000
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 | MD-90-30
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
2000-15-17
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39 (65 FR 81731 12/27/2000)
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 2000-15-17 R1
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   99-NM-227-AD

AMENDMENT:   39-12050

AD NUMBER:   2000-15-17 R1

SUBJECT HEADING:   Airworthiness Directives; McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87); Model MD-88 Airplanes; and Model MD-90-30 Series Airplanes

ACTION:   Final rule; correction.

SUMMARY:   This document corrects a typographical error that appeared in airworthiness directive (AD) 2000-15-17 that was published in the Federal Register on August 8, 2000 (65 FR 48368). The typographical error resulted in the omission of an airplane model from paragraph (c) of the AD. This AD is applicable to certain McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87); Model MD-88 airplanes; and Model MD-90-30 series airplanes. This AD requires installation of a pipe support and clamps on the hydraulic lines in the aft fuselage; replacement of the hydraulic pipe assembly in the aft fuselage with a new pipe assembly; and installation of drain tube assemblies and diverter assemblies in the area of the auxiliary power unit inlet; as applicable.

DATES:   Effective September 12, 2000.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:   Albert Lam, Aerospace Engineer, Systems and Equipment Branch, ANM-130L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California 90712-4137; telephone (562) 627-5346; fax (562) 627-5210.

SUPPLEMENTARY INFORMATION:   Airworthiness Directive (AD) 2000-15-17, amendment 39-11849, applicable to certain McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87); Model MD-88 airplanes; and Model MD-90-30 series airplanes, was published in the Federal Register on August 8, 2000 (65 FR 48368). That AD requires installation of a pipe support and clamps on the hydraulic lines in the aft fuselage; replacement of the hydraulic pipe assembly in the aft fuselage with a new pipe assembly; and installation of drain tube assemblies and diverter assemblies in the area of the auxiliary power unit (APU) inlet; as applicable.

As published, that AD contained a typographical error in paragraph (c) of the AD, which resulted in the omission of Model MD-88 airplanes from its applicability. It was the FAA’s intent that the applicability of paragraph (c) of the AD be parallel to that recommended by the manufacturer in its referenced service bulletin (i.e., McDonnell Douglas Service Bulletin MD80-53-286, dated September 3, 1999). As was indicated under the heading "Explanation of Relevant Service Information" in the preamble of the notice of proposed rulemaking (NPRM), McDonnell Douglas Service Bulletin MD80-53-286, dated September 3, 1999, affects McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) series airplanes, and Model MD-88 airplanes.

Since no other part of the regulatory information has been changed, the final rule is not being republished in the
Federal Register.

The effective date of this AD remains September 12, 2000.

REGULATORY TEXT:  
2000-15-17 R1 MCDONNELL DOUGLAS: Amendment 39-12050, Docket 99-NM-227-AD, Revises AD 2000-15-17, Amendment 39-11849.

Applicability: Models and series of airplanes as listed in the applicable McDonnell Douglas service bulletin(s) specified in Table 1 of this AD, certificated in any category.

TABLE 1
Model of Airplane	McDonnell Douglas Service Bulletin(s)
DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) series airplanes.	MD80-29-056, dated June 18, 1996; MD80-29-062, Revision 01, dated August 3, 1999; and MD80-53-286, dated September 3, 1999.
MD-88 airplanes	MD80-29-062, Revision 01, dated August 3, 1999; and MD80-53-286, dated September 3, 1999.
MD-90-30 series airplanes	MD90-53-018, dated September 3, 1999.

Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (e) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.

Compliance: Required as indicated, unless accomplished previously.

To prevent hydraulic fluid leakage into the auxiliary power unit (APU) inlet due to fatigue vibration and cracking in the flared radius of a hydraulic pipe in the aft fuselage, which could result in smoke and odors in the passenger cabin or cockpit; accomplish the following:

Installation of a Pipe Support and Clamps
(a) For Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) series airplanes, as listed in McDonnell Douglas Service Bulletin MD80-29-056, dated June 18, 1996: Within 18 months after the effective date of this AD, install a pipe support and clamps on the hydraulic lines in the aft fuselage in accordance with the service bulletin.

Replacement of the Hydraulic Pipe Assembly
(b) For Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) series airplanes, and Model MD-88 airplanes, as listed McDonnell Douglas Service Bulletin MD80-29-062, Revision 01, dated August 3, 1999: Within 18 months after the effective date of this AD, replace the hydraulic pipe assembly in the aft fuselage with a new pipe assembly having a greater wall thickness, in accordance with the service bulletin. Except for Model MD-88 airplanes that have been modified in accordance with McDonnell Douglas MD-80 Service Bulletin 29-54, dated February 2, 1993, or Revision 2, dated December 17, 1993, the requirements of this paragraph must be accomplished concurrently with the requirements of paragraph (a) of this AD

Installation of Drain Tube Assemblies and Diverter Assemblies
(c) For Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) series airplanes, and Model MD-88 airplanes, as listed in McDonnell Douglas Service Bulletin MD80-53-286, dated September 3, 1999; and Model MD-90-30 series airplanes, as listed in McDonnell Douglas Service Bulletin MD90-53-018, dated September 3, 1999: Within 36 months after the effective date of this AD, install drain tube assemblies and diverter assemblies in the area of the APU inlet, in accordance with the applicable service bulletin.

Spares
(d) As of the effective date of this AD, no person shall install a hydraulic pipe assembly, part number 7936907-603, on any airplane.

Alternative Methods of Compliance
(e) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Los Angeles ACO.

Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles ACO.

Special Flight Permits
(f) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished.

Incorporation by Reference
(g) The actions shall be done in accordance with McDonnell Douglas Service Bulletin MD80-29-056, dated June 18, 1996; McDonnell Douglas Service Bulletin MD80-29-062, Revision 01, dated August 3, 1999; McDonnell Douglas Service Bulletin MD80-53-286, dated September 3, 1999; or McDonnell Douglas Service Bulletin MD90-53-018, dated September 3, 1999; as applicable. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Boeing Commercial Aircraft Group, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Technical Publications Business Administration, Dept. C1-L51 (2-60). Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Transport Airplane Directorate, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

Effective Date
(h) This amendment becomes effective on September 12, 2000.

FOOTER:   Issued in Renton, Washington, on December 18, 2000.
Dorenda D. Baker,
Acting Manager, Transport Airplane Directorate,
Aircraft Certification Service.