Airworthiness Directives; Boeing Model 767-200 and -300 Series Airplanes, 26285-26287 [E7-8767]
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Federal Register / Vol. 72, No. 89 / Wednesday, May 9, 2007 / Rules and Regulations
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2005–21748; Directorate
Identifier 2005–NM–071–AD; Amendment
39–15044; AD 2007–10–03]
SW., Nassif Building, Room PL–401,
Washington, DC.
Contact Boeing Commercial
Airplanes, P.O. Box 3707, Seattle,
Washington 98124–2207, for service
information identified in this AD.
FOR FURTHER INFORMATION CONTACT:
Airworthiness Directives; Boeing
Model 767–200 and –300 Series
Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
Marcia Smith, Aerospace Engineer,
Cabin Safety and Environmental
Systems Branch, ANM–150S, FAA,
Seattle Aircraft Certification Office,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 917–6484; fax (425) 917–6590.
SUPPLEMENTARY INFORMATION:
RIN 2120–AA64
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AGENCY:
Examining the Docket
SUMMARY: The FAA is adopting a new
airworthiness directive (AD) for certain
Boeing Model 767–200 and –300 series
airplanes. For certain airplanes, this AD
requires repetitive inspections for
discrepancies of the tube assemblies and
insulation of the metered fire
extinguisher system and the bleed air
duct couplings of the auxiliary power
unit (APU) located in the aft cargo
compartment, and corrective actions if
necessary. For certain other airplanes,
this AD requires a one-time inspection
for sufficient clearance between the fire
extinguishing tube and the APU bleed
air duct in the aft cargo compartment,
and modification if necessary. This AD
also requires an inspection for signs of
chafing and to verify sufficient
clearance between the fire extinguisher
system and the bleed air duct couplings
of the APU. This AD results from one
report indicating that an operator found
a hole in the discharge tube assembly
for the metered fire extinguishing
system; and another report indicating
that an operator found chafing of the fire
extinguishing tube against the APU duct
that resulted in a crack in the tube. We
are issuing this AD to prevent fire
extinguishing agent from leaking out of
the tube assembly in the aft cargo
compartment which, in the event of a
fire in the aft cargo compartment, could
result in an insufficient concentration of
fire extinguishing agent, and consequent
inability of the fire extinguishing system
to suppress the fire.
DATES: This AD becomes effective June
13, 2007.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in the AD
as of June 13, 2007.
ADDRESSES: You may examine the AD
docket on the Internet at https://
dms.dot.gov or in person at the Docket
Management Facility, U.S. Department
of Transportation, 400 Seventh Street,
VerDate Aug<31>2005
13:44 May 08, 2007
Jkt 211001
You may examine the AD docket on
the Internet at https://dms.dot.gov or in
person at the Docket Management
Facility office between 9 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 street
address stated in the ADDRESSES section.
Discussion
The FAA issued a supplemental
notice of proposed rulemaking (NPRM)
to amend 14 CFR part 39 to include an
AD that would apply to certain Boeing
Model 767–200 and –300 series
airplanes. That supplemental NPRM
was published in the Federal Register
on June 7, 2006 (71 FR 32873). For
certain airplanes, that supplemental
NPRM proposed to require repetitive
inspections for discrepancies of the tube
assemblies and insulation of the
metered fire extinguisher system and
the bleed air duct couplings of the
auxiliary power unit (APU) located in
the aft cargo compartment; and
corrective actions if necessary. For
certain other airplanes, that
supplemental NPRM proposed to
require a one-time inspection for
sufficient clearance between the fire
extinguishing tube and the APU bleed
air duct in the aft cargo compartment,
and modification if necessary. That
supplemental NPRM also proposed to
require an inspection for signs of
chafing and to verify sufficient
clearance between the fire extinguisher
system and the bleed air duct couplings
of the APU.
Comments
We provided the public the
opportunity to participate in the
development of this AD. We have
considered the comments received.
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26285
Request To Refer to Latest Revision of
Service Bulletin
Boeing, the Air Transport Association
(ATA), on behalf of American Airlines,
and Japan Airlines ask that we refer to
Boeing Service Bulletin 767–26A0130,
Revision 2, dated October 31, 2006, in
the final rule. We referred to Revision 1
of the service bulletin dated December
15, 2005, as the appropriate source of
service information for doing certain
actions specified in the supplemental
NPRM. Japan Airlines states that
Revision 1 includes incorrect
requirements, and asks that Revision 2
be included in the final rule to correct
the specified requirements. Japan
Airlines adds that if the final rule is
issued before issuance of Revision 2 of
the service bulletin, the mistakes
(included in Japan Airlines comments)
should be corrected in the final rule.
Boeing states that inclusion of Revision
2 will avoid issuance of a future
supplemental NPRM. American Airlines
indicates that Boeing provided it with
information acknowledging that
Revision 1 would be revised and
released in the second quarter of 2006.
American Airlines recommends that
Revision 2 refer to the APU duct
couplings only, not both the APU duct
and the APU duct couplings.
We agree to refer to Revision 2 of the
service bulletin in paragraph (f)(1) of the
AD. Revision 2 does the following:
• Corrects certain station numbers.
• Adds clarification procedures for
moving the fire extinguisher tube, and
clarifies the inspection and repair of the
fire extinguisher tube.
• Clarifies certain procedures
specified in Figures 3 through 12, 15,
and 16.
• Adds Figures 19 and 20 to clarify
clamp removal and installation.
• Adds manpower requirements for
Figures 19 and 20.
Revision 2 also refers to the APU duct
couplings instead of both the APU duct
and the APU duct couplings in certain
sections of the Accomplishment
Instructions. We have revised the AD to
refer to Revision 2 of the service bulletin
as the appropriate source of service
information for doing certain actions.
We have also revised paragraph (g) of
this AD to add credit for actions done
before the effective date of this AD in
accordance with Boeing Alert Service
Bulletin 767–26A0130, Revision 1,
dated December 15, 2005. We
acknowledge that there were errors in
certain procedures specified in Revision
1, but those errors did not prevent
accomplishing the inspections and any
applicable corrective actions in a
manner that would address the
identified unsafe condition.
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Federal Register / Vol. 72, No. 89 / Wednesday, May 9, 2007 / Rules and Regulations
Request to Change Note 1
The ATA, on behalf of its member
Delta Airlines, asks that Note 1 of the
supplemental NPRM be changed to omit
the revision level of Boeing Service
Bulletin 767–26–0118, Revision 2, dated
December 21, 2004, so it matches the
reference to Boeing Alert Service
Bulletin 767–26A0123.
We partially agree with the request. In
Note 1 of the supplemental NPRM
Boeing Alert Service Bulletin 767–
26A0123, without a date or revision
level, referred to Boeing Service Bulletin
767–26–0118, Revision 2, dated
December 21, 2004, as the appropriate
source of service information for
accomplishing the modification of the
fire extinguishing tube assembly. Since
the AD must specify a revision level and
date in the requirements, in lieu of
removing the revision level and date for
Boeing Service Bulletin 767–26–0118,
we have removed Note 1 and added a
new paragraph (f)(2)(ii) to the AD.
Paragraph (f)(2)(ii) requires
accomplishing the modification of the
fire extinguishing tube assembly in
accordance with Boeing Service Bulletin
767–26–0118, Revision 2, dated
December 21, 2004. We have also added
a new paragraph (h) to this AD (and reidentified subsequent paragraphs) to
include credit for previously
accomplishing the actions specified in
Boeing Service Bulletin 767–26–0118,
dated June 20, 2002, or Revision 1,
dated October 3, 2002.
Accomplishment Instructions of the
service bulletin, and the correct station
numbers (STA 1140 and STA 1340) are
specified in the Accomplishment
Instructions of both Revisions 1 and 2
of the referenced service bulletin. We
inadvertently specified STA 1197 in
paragraph (f)(1), and we have corrected
that error accordingly.
Clarification Made to This AD
We have carefully reviewed the
available data, including the comments
received, and determined that air safety
and the public interest require adopting
the AD with the changes described
previously. These changes will neither
increase the economic burden on any
operator nor increase the scope of the
AD.
We have changed paragraph (f)(1) of
this AD to clarify the station numbers
for the fire extinguishing tube
assemblies. Paragraph (f)(1) of the
supplemental NPRM proposed to
require performing detailed and general
visual inspections for discrepancies of
the fire extinguishing tube assemblies
between STA 1197 and STA 1340.
Those station numbers were incorrectly
specified in the Summary section of
Revision 1 of the service bulletin.
However, paragraph (f)(1) specifies
doing the actions in accordance with the
Conclusion
Costs of Compliance
There are about 749 airplanes of the
affected design in the worldwide fleet.
The following table provides the
estimated costs for U.S. operators to
comply with this AD.
ESTIMATED COSTS
Action
Work hours
Inspection in Service Bulletin 767–26A0123 .....................
Inspection in Service Bulletin 767–26A0130, Revision 2 ..
Average
labor rate
per hour
1
5
$80
80
None ........
None ........
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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.
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.
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
List of Subjects in 14 CFR Part 39
VerDate Aug<31>2005
13:44 May 08, 2007
Jkt 211001
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
PO 00000
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Cost per
airplane
Parts
Number
of U.S.registered
airplanes
$80
400
292
292
Fleet cost
$23,360
116,800
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
I
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
I
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The Federal Aviation
Administration (FAA) amends § 39.13
by adding the following new
airworthiness directive (AD):
I
2007–10–03 Boeing: Amendment 39–
15044. Docket No. FAA–2005–21748;
Directorate Identifier 2005-NM–071-AD.
Effective Date
(a) This AD becomes effective June 13,
2007.
Affected ADs
(b) None.
E:\FR\FM\09MYR1.SGM
09MYR1
Federal Register / Vol. 72, No. 89 / Wednesday, May 9, 2007 / Rules and Regulations
Applicability
(c) This AD applies to Boeing Model 767–
200 and –300 series airplanes; certificated in
any category; with a metered fire
extinguisher system in the aft cargo
compartment.
Unsafe Condition
(d) This AD was prompted by one report
indicating that an operator found a hole in
the discharge tube assembly for the metered
fire extinguishing system; and another report
indicating that an operator found chafing of
the fire extinguishing tube against the
auxiliary power unit (APU) duct that resulted
in a crack in the tube. We are issuing this AD
to prevent fire extinguishing agent from
leaking out of the tube assembly in the aft
cargo compartment which, in the event of a
fire in the aft cargo compartment, could
result in an insufficient concentration of fire
extinguishing agent, and consequent inability
of the fire extinguishing system to suppress
the fire.
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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.
Inspections and Corrective Actions
(f) Within 24 months or 8,000 flight hours
after the effective date of this AD, whichever
is first: Accomplish the actions required by
paragraphs (f)(1) and (f)(2) of this AD, as
applicable.
(1) For airplanes identified in Boeing
Service Bulletin 767–26A0130, Revision 2,
dated October 31, 2006: Perform detailed and
general visual inspections for discrepancies
of the fire extinguishing tube assemblies
between station (STA) 1140 and STA 1340,
and the insulation of the metered fire
extinguisher system and the bleed air duct
couplings of the APU located in the aft cargo
compartment, and any applicable corrective
actions, by doing all the applicable actions
specified in the Accomplishment
Instructions of Boeing Service Bulletin 767–
26A0130, Revision 2, dated October 31, 2006.
Do all applicable corrective actions before
further flight in accordance with the service
bulletin. Repeat the inspections thereafter at
intervals not to exceed 24 months or 8,000
flight hours, whichever is first. Installation of
the tube assembly in the correct location, in
accordance with the service bulletin,
terminates the repetitive inspections for that
assembly only.
(2) For airplanes identified in Boeing Alert
Service Bulletin 767–26A0123, dated August
22, 2002: Accomplish the actions required by
paragraphs (f)(2)(i) and (f)(2)(ii) of this AD, as
applicable.
(i) Perform a general visual inspection for
sufficient clearance between the fire
extinguishing tube and the APU duct on the
left sidewall from STA 1355 through 1365
inclusive, and do all applicable
modifications, by doing all the actions
specified in the Accomplishment
Instructions of Boeing Alert Service Bulletin
767–26A0123, dated August 22, 2002. Do all
applicable modifications before further flight.
(ii) If there is insufficient clearance
between the fire extinguishing tube and the
VerDate Aug<31>2005
13:44 May 08, 2007
Jkt 211001
26287
APU duct: Before further flight, accomplish
the modification of the fire extinguishing
tube assembly by doing all the actions
specified in the Accomplishment
Instructions of Boeing Service Bulletin 767–
26–0118, Revision 2, dated December 21,
2004. Accomplishing the modification in this
paragraph terminates the repetitive
inspections for that assembly only.
DEPARTMENT OF TRANSPORTATION
Credit for Actions Accomplished Previously
(g) Accomplishing the inspections and
corrective actions required by paragraph
(f)(1) of this AD before the effective date of
this AD, in accordance with Boeing Alert
Service Bulletin 767–26A0130, dated
December 2, 2004, or Revision 1, dated
December 15, 2005; is considered acceptable
for compliance with the corresponding
actions in paragraph (f)(1) of this AD.
(h) Accomplishing the actions required by
paragraph (f)(2)(ii) of this AD before the
effective date of this AD, in accordance with
Boeing Service Bulletin 767–26–0118, dated
June 20, 2002, or Revision 1, dated October
3, 2002; is considered acceptable for
compliance with the corresponding actions
in paragraph (f)(2)(ii) of this AD for
accomplishing the modification of the fire
extinguishing tube assembly.
Establishment of Class E Airspace;
Front Royal-Warren County, VA
Alternative Methods of Compliance
(AMOCs)
(i)(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) Before using any AMOC approved in
accordance with § 39.19 on any airplane to
which the AMOC applies, notify the
appropriate principal inspector in the FAA
Flight Standards Certificate Holding District
Office.
Material Incorporated by Reference
(j) You must use Boeing Service Bulletin
767–26A0130, Revision 2, dated October 31,
2006; Boeing Alert Service Bulletin 767–
26A0123, dated August 22, 2002; and Boeing
Service Bulletin 767–26–0118, Revision 2,
dated December 21, 2004; as applicable; 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 these
documents 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: https://www.archives.gov/federal-register/
cfr/ibr-locations.html.
Issued in Renton, Washington, on April 30,
2007.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E7–8767 Filed 5–8–07; 8:45 am]
BILLING CODE 4910–13–P
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Federal Aviation Administration
14 CFR Part 71
[Docket No. FAA 2007–27512, Airspace
Docket No. 07–AEA–01]
Federal Aviation
Administration (FAA), DOT.
ACTION: Direct final rule; request for
comments.
AGENCY:
SUMMARY: This action establishes a Class
E airspace area at Front Royal-Warren
County Airport, Front Royal, VA (KFFR)
to provide for adequate controlled
airspace for those aircraft using the new
Area Navigation (RNAV) Instrument
Approach Procedure to the Airport.
DATES: Effective 0901 UTC, July 5, 2007.
The Director of the Federal Register
approves this incorporation by reference
action under 1 CFR part 51, subject to
the annual revision of FAA Order
7400.9 and publication of conforming
amendments.
Comments for inclusion in the Rules
Docket must be received on or before
June 8, 2007.
ADDRESSES: Send comments on the rule
to the Docket Management System, U.S.
Department of Transportation, Room
Plaza 401, 400 Seventh Street, SW.,
Washington, DC 20590–0001. You must
identify the docket number, FAA–2007–
27512; airspace docket number, 07–
AEA–01, at the beginning of your
comments. You may also submit
comments on the Internet at https://
dms.dot.gov. You may review the public
docket containing the proposal, any
comments received, and any final
disposition in person at the Dockets
Office between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal
holidays. The Docket Office (telephone
1–800–647–5527) is located on the plaza
level of the Department of
Transportation NASSIF Building at the
street address stated above.
An informal docket may be examined
during normal business hours in the
FAA Eastern Service Center, by
contacting the Manager, Systems
Support, AJO–2E2, Federal Aviation
Administration, Eastern Service Center,
1701 Columbia Ave, College Park, GA,
30337.
FOR FURTHER INFORMATION CONTACT:
Mark D. Ward, Manager, Systems
Support, AJO–2E2, FAA Eastern Service
Center, 1701 Columbia Ave., College
Park, GA, 30337; telephone (404) 305–
5570; fax (404) 305–5099.
E:\FR\FM\09MYR1.SGM
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]]>Agencies
[Federal Register Volume 72, Number 89 (Wednesday, May 9, 2007)]
[Rules and Regulations]
[Pages 26285-26287]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-8767]
[[Page 26285]]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-21748; Directorate Identifier 2005-NM-071-AD;
Amendment 39-15044; AD 2007-10-03]
RIN 2120-AA64
Airworthiness Directives; Boeing Model 767-200 and -300 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 767-200 and -300 series airplanes. For certain
airplanes, this AD requires repetitive inspections for discrepancies of
the tube assemblies and insulation of the metered fire extinguisher
system and the bleed air duct couplings of the auxiliary power unit
(APU) located in the aft cargo compartment, and corrective actions if
necessary. For certain other airplanes, this AD requires a one-time
inspection for sufficient clearance between the fire extinguishing tube
and the APU bleed air duct in the aft cargo compartment, and
modification if necessary. This AD also requires an inspection for
signs of chafing and to verify sufficient clearance between the fire
extinguisher system and the bleed air duct couplings of the APU. This
AD results from one report indicating that an operator found a hole in
the discharge tube assembly for the metered fire extinguishing system;
and another report indicating that an operator found chafing of the
fire extinguishing tube against the APU duct that resulted in a crack
in the tube. We are issuing this AD to prevent fire extinguishing agent
from leaking out of the tube assembly in the aft cargo compartment
which, in the event of a fire in the aft cargo compartment, could
result in an insufficient concentration of fire extinguishing agent,
and consequent inability of the fire extinguishing system to suppress
the fire.
DATES: This AD becomes effective June 13, 2007.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of June 13, 2007.
ADDRESSES: You may examine the AD docket on the Internet at https://
dms.dot.gov or in person at the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif Building,
Room PL-401, Washington, DC.
Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle,
Washington 98124-2207, for service information identified in this AD.
FOR FURTHER INFORMATION CONTACT: Marcia Smith, Aerospace Engineer,
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle
Aircraft Certification Office, 1601 Lind Avenue, SW., Renton,
Washington 98057-3356; telephone (425) 917-6484; fax (425) 917-6590.
SUPPLEMENTARY INFORMATION:
Examining the Docket
You may examine the AD docket on the Internet at https://dms.dot.gov
or in person at the Docket Management Facility office between 9 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 street address stated in the
ADDRESSES section.
Discussion
The FAA issued a supplemental notice of proposed rulemaking (NPRM)
to amend 14 CFR part 39 to include an AD that would apply to certain
Boeing Model 767-200 and -300 series airplanes. That supplemental NPRM
was published in the Federal Register on June 7, 2006 (71 FR 32873).
For certain airplanes, that supplemental NPRM proposed to require
repetitive inspections for discrepancies of the tube assemblies and
insulation of the metered fire extinguisher system and the bleed air
duct couplings of the auxiliary power unit (APU) located in the aft
cargo compartment; and corrective actions if necessary. For certain
other airplanes, that supplemental NPRM proposed to require a one-time
inspection for sufficient clearance between the fire extinguishing tube
and the APU bleed air duct in the aft cargo compartment, and
modification if necessary. That supplemental NPRM also proposed to
require an inspection for signs of chafing and to verify sufficient
clearance between the fire extinguisher system and the bleed air duct
couplings of the APU.
Comments
We provided the public the opportunity to participate in the
development of this AD. We have considered the comments received.
Request To Refer to Latest Revision of Service Bulletin
Boeing, the Air Transport Association (ATA), on behalf of American
Airlines, and Japan Airlines ask that we refer to Boeing Service
Bulletin 767-26A0130, Revision 2, dated October 31, 2006, in the final
rule. We referred to Revision 1 of the service bulletin dated December
15, 2005, as the appropriate source of service information for doing
certain actions specified in the supplemental NPRM. Japan Airlines
states that Revision 1 includes incorrect requirements, and asks that
Revision 2 be included in the final rule to correct the specified
requirements. Japan Airlines adds that if the final rule is issued
before issuance of Revision 2 of the service bulletin, the mistakes
(included in Japan Airlines comments) should be corrected in the final
rule. Boeing states that inclusion of Revision 2 will avoid issuance of
a future supplemental NPRM. American Airlines indicates that Boeing
provided it with information acknowledging that Revision 1 would be
revised and released in the second quarter of 2006. American Airlines
recommends that Revision 2 refer to the APU duct couplings only, not
both the APU duct and the APU duct couplings.
We agree to refer to Revision 2 of the service bulletin in
paragraph (f)(1) of the AD. Revision 2 does the following:
Corrects certain station numbers.
Adds clarification procedures for moving the fire
extinguisher tube, and clarifies the inspection and repair of the fire
extinguisher tube.
Clarifies certain procedures specified in Figures 3
through 12, 15, and 16.
Adds Figures 19 and 20 to clarify clamp removal and
installation.
Adds manpower requirements for Figures 19 and 20.
Revision 2 also refers to the APU duct couplings instead of both
the APU duct and the APU duct couplings in certain sections of the
Accomplishment Instructions. We have revised the AD to refer to
Revision 2 of the service bulletin as the appropriate source of service
information for doing certain actions. We have also revised paragraph
(g) of this AD to add credit for actions done before the effective date
of this AD in accordance with Boeing Alert Service Bulletin 767-
26A0130, Revision 1, dated December 15, 2005. We acknowledge that there
were errors in certain procedures specified in Revision 1, but those
errors did not prevent accomplishing the inspections and any applicable
corrective actions in a manner that would address the identified unsafe
condition.
[[Page 26286]]
Request to Change Note 1
The ATA, on behalf of its member Delta Airlines, asks that Note 1
of the supplemental NPRM be changed to omit the revision level of
Boeing Service Bulletin 767-26-0118, Revision 2, dated December 21,
2004, so it matches the reference to Boeing Alert Service Bulletin 767-
26A0123.
We partially agree with the request. In Note 1 of the supplemental
NPRM Boeing Alert Service Bulletin 767-26A0123, without a date or
revision level, referred to Boeing Service Bulletin 767-26-0118,
Revision 2, dated December 21, 2004, as the appropriate source of
service information for accomplishing the modification of the fire
extinguishing tube assembly. Since the AD must specify a revision level
and date in the requirements, in lieu of removing the revision level
and date for Boeing Service Bulletin 767-26-0118, we have removed Note
1 and added a new paragraph (f)(2)(ii) to the AD. Paragraph (f)(2)(ii)
requires accomplishing the modification of the fire extinguishing tube
assembly in accordance with Boeing Service Bulletin 767-26-0118,
Revision 2, dated December 21, 2004. We have also added a new paragraph
(h) to this AD (and re-identified subsequent paragraphs) to include
credit for previously accomplishing the actions specified in Boeing
Service Bulletin 767-26-0118, dated June 20, 2002, or Revision 1, dated
October 3, 2002.
Clarification Made to This AD
We have changed paragraph (f)(1) of this AD to clarify the station
numbers for the fire extinguishing tube assemblies. Paragraph (f)(1) of
the supplemental NPRM proposed to require performing detailed and
general visual inspections for discrepancies of the fire extinguishing
tube assemblies between STA 1197 and STA 1340. Those station numbers
were incorrectly specified in the Summary section of Revision 1 of the
service bulletin. However, paragraph (f)(1) specifies doing the actions
in accordance with the Accomplishment Instructions of the service
bulletin, and the correct station numbers (STA 1140 and STA 1340) are
specified in the Accomplishment Instructions of both Revisions 1 and 2
of the referenced service bulletin. We inadvertently specified STA 1197
in paragraph (f)(1), and we have corrected that error accordingly.
Conclusion
We have carefully reviewed the available data, including the
comments received, and determined that air safety and the public
interest require adopting the AD with the changes described previously.
These changes will neither increase the economic burden on any operator
nor increase the scope of the AD.
Costs of Compliance
There are about 749 airplanes of the affected design in the
worldwide fleet. The following table provides the estimated costs for
U.S. operators to comply with this AD.
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Number of
Average Cost per U.S.-
Action Work hours labor rate Parts airplane registered Fleet cost
per hour airplanes
----------------------------------------------------------------------------------------------------------------
Inspection in Service Bulletin 1 $80 None........... $80 292 $23,360
767-26A0123.
Inspection in Service Bulletin 5 80 None........... 400 292 116,800
767-26A0130, Revision 2.
----------------------------------------------------------------------------------------------------------------
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):
2007-10-03 Boeing: Amendment 39-15044. Docket No. FAA-2005-21748;
Directorate Identifier 2005-NM-071-AD.
Effective Date
(a) This AD becomes effective June 13, 2007.
Affected ADs
(b) None.
[[Page 26287]]
Applicability
(c) This AD applies to Boeing Model 767-200 and -300 series
airplanes; certificated in any category; with a metered fire
extinguisher system in the aft cargo compartment.
Unsafe Condition
(d) This AD was prompted by one report indicating that an
operator found a hole in the discharge tube assembly for the metered
fire extinguishing system; and another report indicating that an
operator found chafing of the fire extinguishing tube against the
auxiliary power unit (APU) duct that resulted in a crack in the
tube. We are issuing this AD to prevent fire extinguishing agent
from leaking out of the tube assembly in the aft cargo compartment
which, in the event of a fire in the aft cargo compartment, could
result in an insufficient concentration of fire extinguishing agent,
and consequent inability of the fire extinguishing system to
suppress the fire.
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.
Inspections and Corrective Actions
(f) Within 24 months or 8,000 flight hours after the effective
date of this AD, whichever is first: Accomplish the actions required
by paragraphs (f)(1) and (f)(2) of this AD, as applicable.
(1) For airplanes identified in Boeing Service Bulletin 767-
26A0130, Revision 2, dated October 31, 2006: Perform detailed and
general visual inspections for discrepancies of the fire
extinguishing tube assemblies between station (STA) 1140 and STA
1340, and the insulation of the metered fire extinguisher system and
the bleed air duct couplings of the APU located in the aft cargo
compartment, and any applicable corrective actions, by doing all the
applicable actions specified in the Accomplishment Instructions of
Boeing Service Bulletin 767-26A0130, Revision 2, dated October 31,
2006. Do all applicable corrective actions before further flight in
accordance with the service bulletin. Repeat the inspections
thereafter at intervals not to exceed 24 months or 8,000 flight
hours, whichever is first. Installation of the tube assembly in the
correct location, in accordance with the service bulletin,
terminates the repetitive inspections for that assembly only.
(2) For airplanes identified in Boeing Alert Service Bulletin
767-26A0123, dated August 22, 2002: Accomplish the actions required
by paragraphs (f)(2)(i) and (f)(2)(ii) of this AD, as applicable.
(i) Perform a general visual inspection for sufficient clearance
between the fire extinguishing tube and the APU duct on the left
sidewall from STA 1355 through 1365 inclusive, and do all applicable
modifications, by doing all the actions specified in the
Accomplishment Instructions of Boeing Alert Service Bulletin 767-
26A0123, dated August 22, 2002. Do all applicable modifications
before further flight.
(ii) If there is insufficient clearance between the fire
extinguishing tube and the APU duct: Before further flight,
accomplish the modification of the fire extinguishing tube assembly
by doing all the actions specified in the Accomplishment
Instructions of Boeing Service Bulletin 767-26-0118, Revision 2,
dated December 21, 2004. Accomplishing the modification in this
paragraph terminates the repetitive inspections for that assembly
only.
Credit for Actions Accomplished Previously
(g) Accomplishing the inspections and corrective actions
required by paragraph (f)(1) of this AD before the effective date of
this AD, in accordance with Boeing Alert Service Bulletin 767-
26A0130, dated December 2, 2004, or Revision 1, dated December 15,
2005; is considered acceptable for compliance with the corresponding
actions in paragraph (f)(1) of this AD.
(h) Accomplishing the actions required by paragraph (f)(2)(ii)
of this AD before the effective date of this AD, in accordance with
Boeing Service Bulletin 767-26-0118, dated June 20, 2002, or
Revision 1, dated October 3, 2002; is considered acceptable for
compliance with the corresponding actions in paragraph (f)(2)(ii) of
this AD for accomplishing the modification of the fire extinguishing
tube assembly.
Alternative Methods of Compliance (AMOCs)
(i)(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) Before using any AMOC approved in accordance with Sec.
39.19 on any airplane to which the AMOC applies, notify the
appropriate principal inspector in the FAA Flight Standards
Certificate Holding District Office.
Material Incorporated by Reference
(j) You must use Boeing Service Bulletin 767-26A0130, Revision
2, dated October 31, 2006; Boeing Alert Service Bulletin 767-
26A0123, dated August 22, 2002; and Boeing Service Bulletin 767-26-
0118, Revision 2, dated December 21, 2004; as applicable; 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 these documents 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: https://www.archives.gov/federal-
register/cfr/ibr-locations.html.
Issued in Renton, Washington, on April 30, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-8767 Filed 5-8-07; 8:45 am]
BILLING CODE 4910-13-P
