[Federal Register: July 23, 2007 (Volume 72, Number 140)]
[Proposed Rules]
[Page 40094-40096]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr23jy07-14]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-28748; Directorate Identifier 2007-NM-115-AD]
RIN 2120-AA64
Airworthiness Directives; McDonnell Douglas Model DC-10-10, DC-
10-10F, DC-10-30F (KC-10A and KDC-10), DC-10-40F, MD-10-10F, and MD-10-
30F Airplanes; and Model MD-11 and MD-11F Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain McDonnell Douglas Model DC-10-10, DC-10-10F, DC-10-30F (KC-
10A and KDC-10), DC-10-40F, MD-10-10F, and MD-10-30F airplanes; and
Model MD-11 and MD-11F airplanes. This proposed AD would require
installation of control cable freeze protection by making certain
changes. This proposed AD results from reports of standing water on the
horizontal pressure panel above the main and center landing gear wheel
wells. We are proposing this AD to prevent the accumulation of ice on
the flight control cables in the wheel wells. When the landing gear
doors open or vibration in this area occurs, such ice accumulation
could break off and can cause injury to people or damage to property on
the ground, can affect landing gear controls and rear spar flight
control systems, can cause damage to other control systems, and might
cause loss of control of the airplane.
DATES: We must receive comments on this proposed AD by September 6,
2007.
ADDRESSES: Use one of the following addresses to submit comments on
this proposed AD.
DOT Docket Web site: Go to http://dms.dot.gov and follow
the instructions for sending your comments electronically.
Government-wide rulemaking Web site: Go to http://www.regulations.gov
and follow the instructions for sending your
comments electronically.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue, SE., Washington, DC 20590.
Fax: (202) 493-2251.
Hand Delivery: Room W12-140 on the ground floor of the
West Building, 1200 New Jersey Avenue, SE., Washington, DC, between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
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 the service
information identified in this proposed AD.
[[Page 40095]]
FOR FURTHER INFORMATION CONTACT: Ken Sujishi, Aerospace Engineer, Cabin
Safety/Mechanical and Environmental Systems Branch, ANM-150L, FAA, Los
Angeles Aircraft Certification Office, 3960 Paramount Boulevard,
Lakewood, California 90712-4137; telephone (562) 627-5353; fax (562)
627-5210.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to submit any relevant written data, views, or
arguments regarding this proposed AD. Send your comments to an address
listed in the ADDRESSES section. Include the docket number ``FAA-2007-
28748; Directorate Identifier 2007-NM-115-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of the proposed AD. We will
consider all comments received by the closing date and may amend the
proposed AD in light of those comments.
We will post all comments we receive, without change, to http://dms.dot.gov
, including any personal information you provide. We will
also post a report summarizing each substantive verbal contact with FAA
personnel concerning this proposed AD. Using the search function of
that Web site, anyone can find and read the comments in any of our
dockets, including the name of the individual who sent the comment (or
signed the comment on behalf of an association, business, labor union,
etc.). You may review DOT's complete Privacy Act Statement in the
Federal Register published on April 11, 2000 (65 FR 19477-78), or you
may visit http://dms.dot.gov.
Examining the Docket
You may examine the AD docket on the Internet at http://dms.dot.gov
, or in person at the Docket Operations office between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays. The
Docket Operations office (telephone (800) 647-5527) is located on the
ground level of the West Building at the DOT street address stated in
the ADDRESSES section. Comments will be available in the AD docket
shortly after the Docket Management System receives them.
Discussion
We have received reports of standing water on the horizontal
pressure panel above the main and center landing gear wheel wells. The
water leaks into the wheel wells and freezes. The existing design of
the horizontal pressure panel has inadequate protection from water and
ice accumulation. This condition, if not corrected, could result in the
accumulation of ice on the flight control cables in the wheel wells due
to water entering the horizontal pressure panel above the wheel wells
and freezing. When the landing gear doors open or vibration in this
area occurs, such ice accumulation could break off and can cause injury
to people or damage to property on the ground, can affect landing gear
controls and rear spar flight control systems, can cause damage to
other control systems, and might cause loss of control of the airplane.
Relevant Service Information
We have reviewed the following service information:
Table--Service Information
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Boeing Alert Service Bulletin-- For McDonnell Douglas model--
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DC10-27A237, dated January 9, 2007... DC-10-10, DC-10-10F, DC-10-30F
(KC-10A and KDC-10), DC-10-40F,
MD-10-10F, and MD-10-30F
airplanes.
MD11-27A084, Revision 1, dated March MD-11 and MD-11F airplanes.
26, 2007.
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The service information describes procedures for installation of
control cable freeze protection by making certain changes. The changes
include the following:
Installing redesigned control cable pressure seals and
grommets on the horizontal pressure panel.
Installing a ``horseshoe dam'' and a strap on the
horizontal pressure panel.
Applying tape to the electrical cable feedthroughs on the
horizontal pressure panel.
Changing the seals on the access doors of the center
passenger compartment floor/main deck cargo floor panel.
Accomplishing the actions specified in the service information is
intended to adequately address the unsafe condition.
FAA's Determination and Requirements of the Proposed AD
We have evaluated all pertinent information and identified an
unsafe condition that is likely to exist or develop on other airplanes
of this same type design. For this reason, we are proposing this AD,
which would require accomplishing the actions specified in the service
information described previously.
Costs of Compliance
There are about 387 airplanes of the affected design in the
worldwide fleet. This proposed AD would affect about 283 airplanes of
U.S. registry. The proposed actions would take about 40 work hours per
airplane, at an average labor rate of $80 per work hour. Required parts
would cost about $5,896 or $6,073 per airplane depending on the
airplane configuration. Based on these figures, the estimated cost of
the proposed AD for U.S. operators is between $2,574,168 and
$2,624,259, or $9,096 or $9,273 per airplane depending on the airplane
configuration.
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 proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would not
have a substantial direct effect on the States, on the relationship
between the national Government and the States, or
[[Page 40096]]
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that the proposed
regulation:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the 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 proposed AD and placed it in the AD docket. 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, Safety.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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.
Sec. 39.13 [Amended]
2. The Federal Aviation Administration (FAA) amends Sec. 39.13 by
adding the following new airworthiness directive (AD):
McDonnell Douglas: Docket No. FAA-2007-28748; Directorate Identifier
2007-NM-115-AD.
Comments Due Date
(a) The FAA must receive comments on this AD action by September
6, 2007.
Affected ADs
(b) None.
Applicability
(c) This AD applies to airplanes identified in Table 1 of this
AD, certificated in any category.
Table 1.--Applicability
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As identified in Boeing Alert
McDonnell Douglas model-- Service Bulletin--
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(1) DC-10-10, DC-10-10F, DC-10-30F (KC- DC10-27A237, dated January 9,
10A and KDC-10), DC-10-40F, MD-10-10F, 2007.
and MD-10-30F airplanes.
(2) MD-11 and MD-11F airplanes......... MD11-27A084, Revision 1, dated
March 26, 2007.
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Unsafe Condition
(d) This AD results from reports of standing water on the
horizontal pressure panel above the main and center landing gear
wheel wells. We are issuing this AD to prevent the accumulation of
ice on the flight control cables in the wheel wells. When the
landing gear doors open or vibration in this area occurs, such ice
accumulation could break off and can cause injury to people or
damage to property on the ground, can affect landing gear controls
and rear spar flight control systems, can cause damage to other
control systems, and might cause loss of control of the airplane.
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.
Installation of Control Cable Freeze Protection
(f) Within 24 months after the effective date of this AD,
install control cable freeze protection by making the changes
specified in and in accordance with the Accomplishment Instructions
of the applicable service bulletin identified in Table 1 of this AD.
Alternative Methods of Compliance (AMOCs)
(g)(1) The Manager, Los Angeles Aircraft Certification Office
(ACO), FAA, has the authority to approve AMOCs for this AD, if
requested in accordance with the procedures found in 14 CFR 39.19.
(2) To request a different method of compliance or a different
compliance time for this AD, follow the procedures in 14 CFR 39.19.
Before using any approved AMOC on any airplane to which the AMOC
applies, notify your appropriate principal inspector (PI) in the FAA
Flight Standards District Office (FSDO), or lacking a PI, your local
FSDO.
Issued in Renton, Washington, on July 15, 2007.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-14150 Filed 7-20-07; 8:45 am]
BILLING CODE 4910-13-P