FR Doc 05-3785

[Federal Register: March 2, 2005 (Volume 70, Number 40)]
[Rules and Regulations]
[Page 10032-10034]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr02mr05-4]

-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2004-19768; Directorate Identifier 2004-NM-184-AD;
Amendment 39-13990; AD 2005-05-02]
RIN 2120-AA64

Airworthiness Directives; McDonnell Douglas Model MD-90-30
Airplanes

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

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
McDonnell Douglas Model MD-90-30 airplanes. This AD requires a general
visual inspection in the electrical/electronics (E/E) compartment for
damage of the wire bundle and aft right radio rack structure at station
160.000, and corrective actions if necessary. This AD also requires
modifying the radio rack structure and wire bundle routing. This AD is
prompted by a report indicating that burnt wiring was discovered in the
wire bundle at station 160.000 in the E/E compartment. We are issuing
this AD to detect and correct chafing of the wire bundle at station
160.000 against the support bracket located on the aft right radio
rack, which could lead to shorted or burnt wires and consequent smoke
and fire in the E/E compartment.

DATES: This AD becomes effective April 6, 2005.
The incorporation by reference of a certain publication listed in
the AD is approved by the Director of the Federal Register as of April
6, 2005.

ADDRESSES: For service information identified in this AD, contact
Boeing Commercial Airplanes, Long Beach Division, 3855 Lakewood
Boulevard, Long Beach, California 90846, Attention: Data and Service
Management, Dept. C1-L5A (D800-0024). You can examine this information
at the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, call (202)
741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html
.

Docket: The AD docket contains the proposed AD, comments, and any
final disposition. You can examine the AD docket on the Internet at
http://dms.dot.gov, or in person at the Docket Management Facility

office between 9

[[Page 10033]]

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 U.S. Department of
Transportation, 400 Seventh Street SW., room PL-401, Washington, DC.
This docket number is FAA-2004-19768; the directorate identifier for
this docket is 2004-NM-184-AD.

FOR FURTHER INFORMATION CONTACT: George Mabuni, Aerospace Engineer,
Systems and Equipment Branch, ANM-130L, FAA, Los Angeles Aircraft
Certification Office, 3960 Paramount Boulevard, Lakewood, California
90712-4137; telephone (562) 627-5341; fax (562) 627-5210.

SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR Part 39
with an AD for all McDonnell Douglas Model MD-90-30 airplanes. That
action, published in the Federal Register on December 14, 2004 (69 FR
74463), proposed to require a general visual inspection in the
electrical/electronics (E/E) compartment for damage of the wire bundle
and aft right radio rack structure at station 160.000, and corrective
actions if necessary. That action also proposed to require modifying
the radio rack structure and wire bundle routing.

Comments

We provided the public the opportunity to participate in the
development of this AD. No comments have been submitted on the proposed
AD or on the determination of the cost to the public.

Conclusion

We have carefully reviewed the available data and determined that
air safety and the public interest require adopting the AD as proposed.

Change to This AD

We have changed the manufacturer name on the service bulletin
citation in this AD from McDonnell Douglas to Boeing to reflect current
guidelines established by the Office of the Federal Register for
material incorporated by reference.

Costs of Compliance

There are about 105 airplanes of the affected design in the
worldwide fleet. This AD will affect about 21 airplanes of U.S.
registry. The required actions will take about 5 work hours per
airplane, at an average labor rate of $65 per work hour. Required parts
will cost about $3,479 per airplane. Based on these figures, the
estimated cost of the AD for U.S. operators is $79,884, or $3,804 per
airplane.

Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, Section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.

Regulatory Findings

We have determined that this AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866;
(2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979); and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD. See the ADDRESSES section for a location to
examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

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

Sec. 39.13 [Amended]

0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):

2005-05-02 McDonnell Douglas: Amendment 39-13990. Docket No. FAA-
2004-19768; Directorate Identifier 2004-NM-184-AD.

Effective Date

(a) This AD becomes effective April 6, 2005.

Affected ADs

(b) None.

Applicability

Unsafe Condition

(d) This AD was prompted by a report indicating that burnt
wiring was discovered in the wire bundle at station 160.000 in the
electrical/electronics (E/E) compartment. We are issuing this AD to
detect and correct chafing of the wire bundle at station 160.000
against the support bracket located on the aft right radio rack,
which could lead to shorted or burnt wires and consequent smoke and
fire in the E/E compartment.

Compliance

(e) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.

Inspection

(f) Within 18 months after the effective date of this AD,
perform a general visual inspection in the E/E compartment for
damage of the wire bundle and aft right radio rack structure at
station 160.000; do any applicable corrective actions; and modify
the radio rack structure and reroute the wire assembly; by
accomplishing all of the actions specified in the Accomplishment
Instructions of Boeing Alert Service Bulletin MD90-24A080, Revision
1, dated August 5, 2004.

Note 1: For the purposes of this AD, a general visual inspection
is: ``A visual examination of an interior or exterior area,
installation, or assembly to detect obvious damage, failure, or
irregularity. This level of inspection is made from within touching
distance unless otherwise specified. A mirror may be necessary to
ensure visual access to all surfaces in the inspection area. This
level of inspection is made under normally available lighting
conditions such as daylight, hangar lighting, flashlight, or
droplight and may require removal or opening of access panels or
doors. Stands, ladders, or platforms may be required to gain
proximity to the area being checked.''

[[Page 10034]]

Alternative Methods of Compliance (AMOCs)

(g) The Manager, Los Angeles Aircraft Certification Office, FAA,
has the authority to approve AMOCs for this AD, if requested in
accordance with the procedures found in 14 CFR 39.19.

Material Incorporated by Reference

(h) You must use Boeing Alert Service Bulletin MD90-24A080,
Revision 1, dated August 5, 2004, to perform the actions that are
required by this AD, unless the AD specifies otherwise. The Director
of the Federal Register approves the incorporation by reference of
this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.
For copies of the service information, contact Boeing Commercial
Airplanes, Long Beach Division, 3855 Lakewood Boulevard, Long Beach,
California 90846, Attention: Data and Service Management, Dept. C1-
L5A (D800-0024). For information on the availability of this
material at the National Archives and Records Administration (NARA),
call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
You may

view the AD docket at the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh Street SW, room PL-401,
Nassif Building, Washington, DC.

Issued in Renton, Washington, on February 16, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-3785 Filed 3-1-05; 8:45 am]

BILLING CODE 4910-13-P