Airworthiness Directives; Boeing Model 777-200, -200LR, -300, and -300ER Series Airplanes, 37475-37477 [E7-13353]
Download as PDF
<![CDATA[
37475
Federal Register / Vol. 72, No. 131 / Tuesday, July 10, 2007 / Proposed Rules
TABLE 2.—AIRBUS SERVICE BULLETINS
Service Bulletin
A300–24–6045
A300–24–6069
A310–24–2056
A310–24–2079
A310–29–2036
A310–36–2010
Revision level
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
.....................................................................
Issued in Renton, Washington, on June 26,
2007.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E7–13352 Filed 7–9–07; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2007–28664; Directorate
Identifier 2007–NM–007–AD]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 777–200, –200LR, –300, and
–300ER Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking
(NPRM).
rmajette on PROD1PC64 with PROPOSALS
AGENCY:
SUMMARY: The FAA proposes to adopt a
new airworthiness directive (AD) for all
Boeing Model 777–200, –200LR, –300,
and –300ER series airplanes. This
proposed AD would require a one-time
inspection to determine the material of
the forward and aft gray water drain
masts. For airplanes having composite
gray water drain masts, this proposed
AD would also require installation of a
copper bonding jumper between a
ground and the clamp on the tube of the
forward and aft gray water composite
drain masts. This proposed AD results
from a report of charred insulation
blankets and burned wires around the
forward gray water composite drain
mast found during an inspection of the
forward cargo compartment on a Model
767–300F airplane. We are proposing
this AD to prevent a fire near a
composite drain mast and possible
disruption of the electrical power
system due to a lightning strike on a
composite drain mast, which could
result in the loss of several functions
essential for safe flight.
DATES: We must receive comments on
this proposed AD by August 24, 2007.
VerDate Aug<31>2005
15:19 Jul 09, 2007
Jkt 211001
Revision
Revision
Revision
Revision
Revision
Revision
05
01
02
01
03
03
...........................................................................
...........................................................................
...........................................................................
...........................................................................
...........................................................................
...........................................................................
Use one of the following
addresses to submit comments on this
proposed AD.
• DOT Docket Web site: Go to
https://dms.dot.gov and follow the
instructions for sending your comments
electronically.
• Government-wide rulemaking Web
site: Go to https://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, P.O. Box 3707, Seattle,
Washington 98124–2207, for the service
information identified in this proposed
AD.
FOR FURTHER INFORMATION CONTACT:
Dave Webber, 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) 917–6451; fax (425) 917–6590.
SUPPLEMENTARY INFORMATION:
ADDRESSES:
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–2007–28664; Directorate
Identifier 2007–NM–007–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 https://
dms.dot.gov, including any personal
PO 00000
Frm 00006
Fmt 4702
Date
Sfmt 4702
June 9, 2006.
April 27, 2006.
June 9, 2006.
April 27, 2006.
June 9, 2006.
May 24, 2006.
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 https://
dms.dot.gov.
Examining the Docket
You may examine the AD docket on
the Internet at https://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 floor of the West Building at the
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 a report indicating
that, during an inspection of the forward
cargo compartment on a Model 767–
300F airplane, an operator found
charred insulation blankets and burned
wires around the forward gray water
composite drain mast. Additional
charring on the insulation blankets was
noticed several feet away along the
routing of the drain mast’s ground wire
and power wires. Analysis of the
damaged parts revealed that a lightning
strike on the composite drain mast
caused the damage to the wires and
insulation blankets. This condition, if
not corrected, could cause disruption of
electrical power and fire and heat
damage to equipment in the event of a
lightning strike on the composite drain
mast, which could result in the
potential loss of several functions
essential for safe flight.
A design review of the gray water
composite drain mast installation on
Model 737NG, 757, 767, and 777
E:\FR\FM\10JYP1.SGM
10JYP1
37476
Federal Register / Vol. 72, No. 131 / Tuesday, July 10, 2007 / Proposed Rules
airplanes revealed that the installation
of a heavier bonding jumper is
necessary to provide adequate lightning
protection to the gray water composite
drain mast installation. The subject area
on Model 777 airplanes is almost
identical to that on the affected Model
767–300F airplane. Therefore, Model
777 airplanes might be subject to the
unsafe condition revealed on the Model
767–300F airplane. We are currently
considering additional rulemaking to
address the identified unsafe condition
on Model 737NG, 757, and 767
airplanes.
Relevant Service Information
We have reviewed Boeing Special
Attention Service Bulletin 777–30–
0014, dated July 24, 2006. The service
bulletin describes procedures for
installing a 135-ampere copper bonding
jumper between a ground and the clamp
on the tube of the forward and aft gray
water composite drain masts.
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, except as discussed under
‘‘Difference Between the Proposed AD
and the Referenced Service Bulletin.’’
Difference Between the Proposed AD
and the Referenced Service Bulletin
Operators should note that, although
Model 777–200LR series airplanes are
not included in the effectivity of Boeing
Special Attention Service Bulletin 777–
30–0014, dated July 24, 2006, this
proposed AD is applicable to those
airplanes. This difference has been
coordinated with Boeing.
Costs of Compliance
There are about 164 airplanes of the
affected design in the worldwide fleet.
The following table provides the
estimated costs for U.S. operators to
comply with this proposed AD.
ESTIMATED COSTS
Action
Work hours
Inspection to determine gray water
drain mast material.
Installation of bonding
jumper.
Average
labor rate
per hour
rmajette on PROD1PC64 with PROPOSALS
Number of U.S.-registered airplanes
Fleet cost
$80
None ........................
$80 ..........................
20 ............................
$1,600.
4
80
Between $132 and
$274, depending
on kit and number
of kits needed (1
or 2).
Between $452 and
$594.
Up to 20 ..................
Between $9,040 and
$11,880.
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
15:19 Jul 09, 2007
Cost per airplane
1
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.
VerDate Aug<31>2005
Parts
Jkt 211001
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 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:
PO 00000
Frm 00007
Fmt 4702
Sfmt 4702
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.
§ 39.13
[Amended]
2. The Federal Aviation
Administration (FAA) amends § 39.13
by adding the following new
airworthiness directive (AD):
Boeing: Docket No. FAA–2007–28664;
Directorate Identifier 2007–NM–007–AD.
Comments Due Date
(a) The FAA must receive comments on
this AD action by August 24, 2007.
Affected ADs
(b) None.
Applicability
(c) This AD applies to all Boeing Model
777–200, –200LR, –300, and –300ER series
airplanes, certificated in any category.
Unsafe Condition
(d) This AD results from a report of charred
insulation blankets and burned wires around
the forward gray water composite drain mast
found during an inspection of the forward
cargo compartment on a Model 767–300F
airplane. We are issuing this AD to prevent
a fire near a composite drain mast and
E:\FR\FM\10JYP1.SGM
10JYP1
Federal Register / Vol. 72, No. 131 / Tuesday, July 10, 2007 / Proposed Rules
possible disruption of the electrical power
system due to a lightning strike on a
composite drain mast, which could result in
the loss of several functions essential for safe
flight.
Compliance
Issued in Renton, Washington, on June 26,
2007.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E7–13353 Filed 7–9–07; 8:45 am]
(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.
BILLING CODE 4910–13–P
Inspection To Determine Material of Gray
Water Drain Mast
Federal Aviation Administration
(f) Within 60 months after the effective
date of this AD, inspect the forward and aft
gray water drain masts to determine whether
the drain mast is made of aluminum or
composite material. A review of airplane
maintenance records is acceptable in lieu of
this inspection if the material of the forward
and aft gray water drain masts can be
conclusively determined from that review.
(1) For any aluminum gray water drain
mast identified during the inspection or
records check required by paragraph (f) of
this AD, no further action is required by this
AD for that drain mast only.
(2) For any composite gray water drain
mast identified during the inspection or
records check required by paragraph (f) of
this AD, do the actions specified in
paragraph (g) of this AD.
14 CFR Part 39
Installation of Bonding Jumper
(g) For any composite gray water drain
mast identified during the inspection or
records check required by paragraph (f) of
this AD: Within 60 months after the effective
date of this AD, install a 135-ampere copper
bonding jumper between a ground and the
clamp on the tube of the gray water
composite drain mast, in accordance with the
Accomplishment instructions of Boeing
Special Attention Service Bulletin 777–30–
0014, dated July 24, 2006.
rmajette on PROD1PC64 with PROPOSALS
Installation of Bonding Jumper Not
Necessary for Aluminum Drain Masts
(h) For airplanes on which the forward
composite drain mast has been replaced with
an aluminum drain mast per Boeing Service
Bulletin 777–38–0026: Installation of the
bonding jumper specified in paragraph (g) of
this AD is not required for the forward gray
water drain mast, as specified in Part 1 of the
Accomplishment Instructions of Boeing
Special Attention Service Bulletin 777–30–
0014, dated July 24, 2006.
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) 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.
VerDate Aug<31>2005
15:19 Jul 09, 2007
Jkt 211001
DEPARTMENT OF TRANSPORTATION
[Docket No. FAA–2007–28665; Directorate
Identifier 2007–NM–081–AD]
RIN 2120–AA64
Airworthiness Directives; Airbus Model
A300 and A300–600 Series Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
SUMMARY: We propose to adopt a new
airworthiness directive (AD) for the
products listed above. This proposed
AD results from mandatory continuing
airworthiness information (MCAI)
originated by an aviation authority of
another country to identify and correct
an unsafe condition on an aviation
product. The MCAI describes the unsafe
condition as:
Three cases of outer deflector panel found
detached or broken during ground inspection
have been reported to Airbus. * * * [A]n
operator has also reported a missing portion
of hinge on one panel. * * * Mishandling or
failure of the small portion of hinge located
inboard of the affected deflector panel is
suspected to be the main cause of the
deflector damage. This can cause
misalignment of the deflector panel followed
by hinge pin migration and possible further
damages to the deflector on flap retraction. If
not corrected, such situation could lead to
the loss of deflector panel and injured people
on the ground.
The proposed AD would require actions
that are intended to address the unsafe
condition described in the MCAI.
DATES: We must receive comments on
this proposed AD by August 9, 2007.
ADDRESSES: You may send comments by
any of the following methods:
• DOT Docket Web Site: Go to
https://dms.dot.gov and follow the
instructions for sending your comments
electronically.
• Fax: (202) 493–2251.
• 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.
• Hand Delivery: Room W12–140 on
the ground floor of the West Building,
PO 00000
Frm 00008
Fmt 4702
Sfmt 4702
37477
1200 New Jersey Avenue SE.,
Washington, DC, between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the
instructions for submitting comments.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://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 AD docket contains this proposed
AD, the regulatory evaluation, any
comments received, and other
information. The street address for the
Docket Operations office (telephone
(800) 647–5527) is in the ADDRESSES
section. Comments will be available in
the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Tom
Stafford, Aerospace Engineer,
International Branch, ANM–116, FAA,
Transport Airplane Directorate, 1601
Lind Avenue, SW., Renton, Washington
98057–3356; telephone (425) 227–1622;
fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
Streamlined Issuance of AD
The FAA is implementing a new
process for streamlining the issuance of
ADs related to MCAI. This streamlined
process will allow us to adopt MCAI
safety requirements in a more efficient
manner and will reduce safety risks to
the public. This process continues to
follow all FAA AD issuance processes to
meet legal, economic, Administrative
Procedure Act, and Federal Register
requirements. We also continue to meet
our technical decision-making
responsibilities to identify and correct
unsafe conditions on U.S.-certificated
products.
This proposed AD references the
MCAI and related service information
that we considered in forming the
engineering basis to correct the unsafe
condition. The proposed AD contains
text copied from the MCAI and for this
reason might not follow our plain
language principles.
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposed AD. Send your comments
to an address listed under the
ADDRESSES section. Include ‘‘Docket No.
FAA–2007–28665; Directorate Identifier
2007–NM–081–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this proposed AD. We will
consider all comments received by the
E:\FR\FM\10JYP1.SGM
10JYP1
]]>Agencies
[Federal Register Volume 72, Number 131 (Tuesday, July 10, 2007)]
[Proposed Rules]
[Pages 37475-37477]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-13353]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-28664; Directorate Identifier 2007-NM-007-AD]
RIN 2120-AA64
Airworthiness Directives; Boeing Model 777-200, -200LR, -300, and
-300ER Series Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for all Boeing Model 777-200, -200LR, -300, and -300ER series
airplanes. This proposed AD would require a one-time inspection to
determine the material of the forward and aft gray water drain masts.
For airplanes having composite gray water drain masts, this proposed AD
would also require installation of a copper bonding jumper between a
ground and the clamp on the tube of the forward and aft gray water
composite drain masts. This proposed AD results from a report of
charred insulation blankets and burned wires around the forward gray
water composite drain mast found during an inspection of the forward
cargo compartment on a Model 767-300F airplane. We are proposing this
AD to prevent a fire near a composite drain mast and possible
disruption of the electrical power system due to a lightning strike on
a composite drain mast, which could result in the loss of several
functions essential for safe flight.
DATES: We must receive comments on this proposed AD by August 24, 2007.
ADDRESSES: Use one of the following addresses to submit comments on
this proposed AD.
DOT Docket Web site: Go to https://dms.dot.gov and follow
the instructions for sending your comments electronically.
Government-wide rulemaking Web site: Go to https://
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, P.O. Box 3707, Seattle,
Washington 98124-2207, for the service information identified in this
proposed AD.
FOR FURTHER INFORMATION CONTACT: Dave Webber, 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) 917-6451; fax (425) 917-6590.
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-
28664; Directorate Identifier 2007-NM-007-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 https://
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 https://dms.dot.gov.
Examining the Docket
You may examine the AD docket on the Internet at https://
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 floor of the West Building at the 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 a report indicating that, during an inspection of
the forward cargo compartment on a Model 767-300F airplane, an operator
found charred insulation blankets and burned wires around the forward
gray water composite drain mast. Additional charring on the insulation
blankets was noticed several feet away along the routing of the drain
mast's ground wire and power wires. Analysis of the damaged parts
revealed that a lightning strike on the composite drain mast caused the
damage to the wires and insulation blankets. This condition, if not
corrected, could cause disruption of electrical power and fire and heat
damage to equipment in the event of a lightning strike on the composite
drain mast, which could result in the potential loss of several
functions essential for safe flight.
A design review of the gray water composite drain mast installation
on Model 737NG, 757, 767, and 777
[[Page 37476]]
airplanes revealed that the installation of a heavier bonding jumper is
necessary to provide adequate lightning protection to the gray water
composite drain mast installation. The subject area on Model 777
airplanes is almost identical to that on the affected Model 767-300F
airplane. Therefore, Model 777 airplanes might be subject to the unsafe
condition revealed on the Model 767-300F airplane. We are currently
considering additional rulemaking to address the identified unsafe
condition on Model 737NG, 757, and 767 airplanes.
Relevant Service Information
We have reviewed Boeing Special Attention Service Bulletin 777-30-
0014, dated July 24, 2006. The service bulletin describes procedures
for installing a 135-ampere copper bonding jumper between a ground and
the clamp on the tube of the forward and aft gray water composite drain
masts.
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, except as discussed under
``Difference Between the Proposed AD and the Referenced Service
Bulletin.''
Difference Between the Proposed AD and the Referenced Service Bulletin
Operators should note that, although Model 777-200LR series
airplanes are not included in the effectivity of Boeing Special
Attention Service Bulletin 777-30-0014, dated July 24, 2006, this
proposed AD is applicable to those airplanes. This difference has been
coordinated with Boeing.
Costs of Compliance
There are about 164 airplanes of the affected design in the
worldwide fleet. The following table provides the estimated costs for
U.S. operators to comply with this proposed AD.
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Average
Action Work hours labor rate Parts Cost per airplane Number of U.S.- Fleet cost
per hour registered airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
Inspection to determine gray water 1 $80 None................. $80.................. 20................... $1,600.
drain mast material.
Installation of bonding jumper.... 4 80 Between $132 and Between $452 and $594 Up to 20............. Between $9,040 and
$274, depending on $11,880.
kit and number of
kits needed (1 or 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 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 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):
Boeing: Docket No. FAA-2007-28664; Directorate Identifier 2007-NM-
007-AD.
Comments Due Date
(a) The FAA must receive comments on this AD action by August
24, 2007.
Affected ADs
(b) None.
Applicability
(c) This AD applies to all Boeing Model 777-200, -200LR, -300,
and -300ER series airplanes, certificated in any category.
Unsafe Condition
(d) This AD results from a report of charred insulation blankets
and burned wires around the forward gray water composite drain mast
found during an inspection of the forward cargo compartment on a
Model 767-300F airplane. We are issuing this AD to prevent a fire
near a composite drain mast and
[[Page 37477]]
possible disruption of the electrical power system due to a
lightning strike on a composite drain mast, which could result in
the loss of several functions essential for safe flight.
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 To Determine Material of Gray Water Drain Mast
(f) Within 60 months after the effective date of this AD,
inspect the forward and aft gray water drain masts to determine
whether the drain mast is made of aluminum or composite material. A
review of airplane maintenance records is acceptable in lieu of this
inspection if the material of the forward and aft gray water drain
masts can be conclusively determined from that review.
(1) For any aluminum gray water drain mast identified during the
inspection or records check required by paragraph (f) of this AD, no
further action is required by this AD for that drain mast only.
(2) For any composite gray water drain mast identified during
the inspection or records check required by paragraph (f) of this
AD, do the actions specified in paragraph (g) of this AD.
Installation of Bonding Jumper
(g) For any composite gray water drain mast identified during
the inspection or records check required by paragraph (f) of this
AD: Within 60 months after the effective date of this AD, install a
135-ampere copper bonding jumper between a ground and the clamp on
the tube of the gray water composite drain mast, in accordance with
the Accomplishment instructions of Boeing Special Attention Service
Bulletin 777-30-0014, dated July 24, 2006.
Installation of Bonding Jumper Not Necessary for Aluminum Drain Masts
(h) For airplanes on which the forward composite drain mast has
been replaced with an aluminum drain mast per Boeing Service
Bulletin 777-38-0026: Installation of the bonding jumper specified
in paragraph (g) of this AD is not required for the forward gray
water drain mast, as specified in Part 1 of the Accomplishment
Instructions of Boeing Special Attention Service Bulletin 777-30-
0014, dated July 24, 2006.
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) 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 June 26, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-13353 Filed 7-9-07; 8:45 am]
BILLING CODE 4910-13-P
