[Federal Register: December 10, 2007 (Volume 72, Number 236)]
[Rules and Regulations]
[Page 69583-69585]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr10de07-6]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-28943; Directorate Identifier 2007-NM-011-AD;
Amendment 39-15295; AD 2007-25-13]
RIN 2120-AA64
Airworthiness Directives; Boeing Model 767-300F Series Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Boeing Model 767-300F series airplanes. This AD requires
replacing the rotomolded duct(s) of the mix manifold system with new
duct(s). This AD results from a report of failures of the duct joint
seal of the mix manifold system. We are issuing this AD to prevent air
conditioning leakage into the mix manifold bay. Such leakage could
decrease the air flow to the flight compartment and main cabin or could
allow smoke into the flight compartment in the event of a fire in the
main cabin or forward cargo compartment.
DATES: This AD becomes effective January 14, 2008.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of January 14,
2008.
ADDRESSES: For service information identified in this AD, contact
Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-
2207.
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.gov
; or in person at the Docket Management Facility
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this AD, the regulatory evaluation,
any comments received, and other information. The address for the
Docket Office (telephone 800-647-5527) is the Document Management
Facility, U.S. Department of Transportation, Docket Operations, M-30,
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE.,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Jeffrey S. Palmer, Aerospace Engineer,
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle
Aircraft Certification Office,
[[Page 69584]]
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425)
917-6481; fax (425) 917-6590.
SUPPLEMENTARY INFORMATION:
Discussion
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to include an AD that would apply to certain Boeing Model
767-300F series airplanes. That NPRM was published in the Federal
Register on August 16, 2007 (72 FR 45980). That NPRM proposed to
require replacing the rotomolded duct(s) of the mix manifold system
with new duct(s).
Comments
We provided the public the opportunity to participate in the
development of this AD. We have considered the comment received. Boeing
supports the NPRM.
Conclusion
We have carefully reviewed the available data, including the
comment received, and determined that air safety and the public
interest require adopting the AD as proposed.
Costs of Compliance
There are about 40 airplanes of the affected design in the
worldwide fleet. This AD affects about 32 airplanes of U.S. registry.
The required actions will take about 2 or 8 work hours per airplane, at
an average labor rate of $80 per work hour. Required parts will cost
about $4,123 or $42,825 per airplane. Based on these figures, the
estimated cost of the AD for U.S. operators is $4,283 or $43,465 per
airplane. (The estimated work hours and costs depend 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 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 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, 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 Federal Aviation Administration (FAA) amends Sec. 39.13 by
adding the following new airworthiness directive (AD):
2007-25-13 Boeing: Amendment 39-15295. Docket No. FAA-2007-28943;
Directorate Identifier 2007-NM-011-AD.
Effective Date
(a) This AD becomes effective January 14, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Boeing Model 767-300F series airplanes,
certificated in any category; as identified in Boeing Special
Attention Service Bulletin 767-21-0192, dated March 23, 2006.
Unsafe Condition
(d) This AD results from a report of failures of the duct joint
seal of the mix manifold system. We are issuing this AD to prevent
air conditioning leakage into the mix manifold bay. Such leakage
could decrease the air flow to the flight compartment and main cabin
or could allow smoke into the flight compartment in the event of a
fire in the main cabin or forward cargo 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.
Replacement
(f) Within 36 months after the effective date of this AD, do the
applicable action specified in Table 1 of this AD in accordance with
the Accomplishment Instructions of Boeing Special Attention Service
Bulletin 767-21-0192, dated March 23, 2006.
Table 1.--Replacement
------------------------------------------------------------------------
For airplanes identified in
the service bulletin as-- Do the following action--
------------------------------------------------------------------------
(1) Group 1 airplanes......... Replace the rotomolded duct between the
transition duct of the right cooling
pack and the mix manifold with a new
duct made of aluminum.
(2) Group 2 airplanes......... Replace the rotomolded ducts of the mix
manifold system with new ducts made
from Kevlar[reg] and aluminum.
------------------------------------------------------------------------
Alternative Methods of Compliance (AMOCs)
(g)(1) The Manager, Seattle 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.
(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
[[Page 69585]]
Office (FSDO), or lacking a PI, your local FSDO.
Material Incorporated by Reference
(h) You must use Boeing Special Attention Service Bulletin 767-
21-0192, dated March 23, 2006, to perform the actions that are
required by this AD, unless the AD specifies otherwise. The Director
of the Federal Register approved the incorporation by reference of
this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.
Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle,
Washington 98124-2207, for a copy of this service information. You
may review copies at the FAA, Transport Airplane Directorate, 1601
Lind Avenue, SW., Renton, Washington; or 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
.
Issued in Renton, Washington, on November 23, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-23685 Filed 12-7-07; 8:45 am]
BILLING CODE 4910-13-P