Airworthiness Directives; Airbus Model A300 Airplanes; Model A310 Airplanes; and Model A300 B4-600, B4-600R, and F4-600R Series Airplanes and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes), 28611-28615 [E6-7481]
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<![CDATA[
28611
Federal Register / Vol. 71, No. 95 / Wednesday, May 17, 2006 / Proposed Rules
comparable size standard for this
industry would be in the range of 100
to 125 employees. However, SBA
decided to keep the size standard
receipts-based because of its emphasis
on its restructuring effort is
simplification. Many firms in this
industry are also active in the Other
Airport Operations industry, which
does not lend itself to an employeebased size standard. If SBA decided to
establish an employee-based size
standard for Other Support Activities
for Air Transportation, firms that are
active in both industries could find
themselves small in the Other Support
Activities for Air Transportation
industry, yet large in the Other Airport
Operations industry, or vice-a-versa.
The analysis provided above indicates
that both industries require a similar
receipts-based size standard.
SBA welcomes comments on other
alternatives that minimize the impact of
this rule on small businesses and
achieve the objectives of this rule. These
comments should describe the
alternative and explain why it is
preferable to this proposed rule.
PART 121—SMALL BUSINESS SIZE
REGULATIONS
List of Subjects in 13 CFR Part 121
Administrative practice and
procedure, Government procurement,
Government property, Grant programs—
business, Individuals with disabilities,
Loan programs—business, Reporting
and recordkeeping requirements, Small
businesses.
For the reasons set forth in the
preamble, SBA proposes to amend part
13 CFR Part 121 as follows.
2. In § 121.201, in the table ‘‘Small
Business Size Standards by NAICS
Industry,’’ under the heading
‘‘Subsector 488’Support Activities for
Transportation,’’ revise the entries for
488111, 488119, and 488190 to read as
follows:
1. The authority citation for part 121
continues to read as follows:
Authority: 15 U.S.C. 632, 634(b)(6), 636(b),
637(a), 644, and 662(5); and Pub. L. 105–135,
sec. 401 et seq., 111 Stat. 2592.
§ 121.201 What size standards has SBA
identified by North American Industry
Classification System codes?
SMALL BUSINESS SIZE STANDARDS BY NAICS INDUSTRY
NAICS
codes
Size standards
in millions of
dollars
NAICS U.S. industry title
*
*
*
*
*
*
Size standards
in number of
employees
*
Subsector 488—Support Activities for Transportation
488111 .....
488119 .....
488190 .....
Air Traffic Control ..............................................................................................................................
Other Airport Operations ...................................................................................................................
Other Support Activities for Air Transportation .................................................................................
*
*
*
Dated: March 17, 2006.
Hector V. Barreto,
Administrator.
[FR Doc. 06–4619 Filed 5–16–06; 8:45 am]
Notice of proposed rulemaking
(NPRM).
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–24779; Directorate
Identifier 2006–NM–044–AD]
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RIN 2120–AA64
Airworthiness Directives; Airbus Model
A300 Airplanes; Model A310 Airplanes;
and Model A300 B4–600, B4–600R, and
F4–600R Series Airplanes and Model
C4–605R Variant F Airplanes
(Collectively Called A300–600 Series
Airplanes)
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
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*
ACTION:
BILLING CODE 8025–01–P
AGENCY:
*
SUMMARY: The FAA proposes to adopt a
new airworthiness directive (AD) for all
Airbus Model A300 airplanes and
Model A310 airplanes and for certain
Airbus Model A300–600 series
airplanes. This proposed AD would
require an inspection of the wing and
center fuel tanks to determine if certain
P-clips are installed and corrective
action if necessary. This proposed AD
also would require an inspection of
electrical bonding points of certain
equipment in the center fuel tank for the
presence of a blue coat and related
investigative and corrective actions if
necessary. This proposed AD also
would require installation of new
bonding leads and electrical bonding
points on certain equipment in the
wing, center, and trim fuel tanks, as
necessary. This proposed AD results
from fuel system reviews conducted by
the manufacturer. We are proposing this
AD to ensure continuous electrical
bonding protection of equipment in the
wing, center, and trim fuel tanks and to
prevent damage to wiring in the wing
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*
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*
and center fuel tanks, due to failed Pclips used for retaining the wiring and
pipes, which could result in a possible
fuel ignition source in the fuel tanks.
DATES: We must receive comments on
this proposed AD by June 16, 2006.
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: Docket Management Facility,
U.S. Department of Transportation, 400
Seventh Street, SW., Nassif Building,
room PL–401, Washington, DC 20590.
• Fax: (202) 493–2251.
• Hand Delivery: Room PL–401 on
the plaza level of the Nassif Building,
400 Seventh Street, SW., Washington,
DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
Contact Airbus, 1 Rond Point Maurice
Bellonte, 31707 Blagnac Cedex, France,
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Federal Register / Vol. 71, No. 95 / Wednesday, May 17, 2006 / Proposed Rules
for service information identified in this
proposed AD.
FOR FURTHER INFORMATION CONTACT: Tom
Stafford, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98055–4056; telephone
(425) 227–1622; fax (425) 227–1149.
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–2006–24779; Directorate
Identifier 2006–NM–044–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 the 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
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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 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
The FAA has examined the
underlying safety issues involved in fuel
tank explosions on several large
transport airplanes, including the
adequacy of existing regulations, the
service history of airplanes subject to
those regulations, and existing
maintenance practices for fuel tank
systems. As a result of those findings,
we issued a regulation titled ‘‘Transport
Airplane Fuel Tank System Design
Review, Flammability Reduction and
Maintenance and Inspection
Requirements’’ (67 FR 23086, May 7,
2001). In addition to new airworthiness
standards for transport airplanes and
new maintenance requirements, this
rule included Special Federal Aviation
Regulation No. 88 (‘‘SFAR 88,’’
Amendment 21–78, and subsequent
Amendments 21–82 and 21–83).
Among other actions, SFAR 88
requires certain type design (i.e., type
certificate (TC) and supplemental type
certificate (STC)) holders to substantiate
that their fuel tank systems can prevent
ignition sources in the fuel tanks. This
requirement applies to type design
holders for large turbine-powered
transport airplanes and for subsequent
modifications to those airplanes. It
requires them to perform design reviews
and to develop design changes and
maintenance procedures if their designs
do not meet the new fuel tank safety
standards. As explained in the preamble
to the rule, we intended to adopt
airworthiness directives to mandate any
changes found necessary to address
unsafe conditions identified as a result
of these reviews. In evaluating these
design reviews, we have established
four criteria intended to define the
unsafe conditions associated with fuel
tank systems that require corrective
actions. The percentage of operating
time during which fuel tanks are
exposed to flammable conditions is one
of these criteria. The other three criteria
address the failure types under
evaluation: Single failures, single
failures in combination with a latent
condition(s), and in-service failure
experience. For all four criteria, the
evaluations included consideration of
previous actions taken that may mitigate
the need for further action.
The Joint Aviation Authorities (JAA)
has issued a regulation that is similar to
SFAR 88. (The JAA is an associated
body of the European Civil Aviation
Conference (ECAC) representing the
civil aviation regulatory authorities of a
number of European States who have
agreed to co-operate in developing and
implementing common safety regulatory
standards and procedures.) Under this
regulation, the JAA stated that all
members of the ECAC that hold type
certificates for transport category
airplanes are required to conduct a
design review against explosion risks.
We have determined that the actions
identified in this AD are necessary to
reduce the potential of ignition sources
inside fuel tanks, which, in combination
with flammable fuel vapors, could result
in fuel tank explosions and consequent
loss of the airplane.
´ ´
The Direction Generale de l’Aviation
Civile (DGAC), which is the
airworthiness authority for France,
notified us that an unsafe condition may
exist on all Airbus Model A300
airplanes and A310 airplanes and on
certain Model A300 B4–600, B4–600R,
and F4–600R series airplanes and Model
C4–605R Variant F airplanes
(collectively called A300–600 series
airplanes). The DGAC advises that the
inserts on NSA5516–XXND and
NSA5516–XXNJ type P-clips, which are
used to retain wiring and pipes in wing
and center fuel tanks, may swell and
soften when immersed in fuel or fuel
vapor. Investigation revealed that failed
P-clips could chafe through the
insulation of the wiring. Damage to
wiring in the wing and center fuel tanks,
if not corrected, could result in a
possible fuel ignition source in the fuel
tanks.
The DGAC advises that, as a result of
fuel system reviews conducted by the
manufacturer, continuous electrical
bonding protection of equipment in the
wing, center, and trim fuel tanks, as
applicable, is also necessary to ensure
that the unsafe condition of this AD is
addressed.
Relevant Service Information
Airbus has issued the following
service bulletins:
Airbus service
bulletin—
Airbus—
Model A300 airplanes ..............................................................................................................................
Model A310 airplanes ..............................................................................................................................
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A300–28–0079
A300–28–0081
A310–28–2142
A310–28–2143
A310–28–2153
17MYP1
Dated—
September 29, 2005.
July 20, 2005.
August 26, 2005.
July 20, 2005.
July 20, 2005.
Federal Register / Vol. 71, No. 95 / Wednesday, May 17, 2006 / Proposed Rules
Airbus service
bulletin—
Airbus—
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Model A300–600 series airplanes ...........................................................................................................
Service Bulletins A300–28–0081,
A300–28–6068, and A310–28–2143
describe procedures for inspecting the
left and right wing fuel tanks and center
fuel tank to determine if any NSA5516–
XXND and NSA5516–XXNJ type P-clips
are installed for retaining wiring and
pipes in any tank and corrective action
if necessary. The corrective action is to
replace any NSA5516–XXND and
NSA5516–XXNJ type P-clips with
NSA5516–XXNF type P-clips.
Service Bulletins A300–28–0079,
A300–28–6064, and A310–28–2142
describe procedures for checking the
electrical bonding points of certain
equipment in the center fuel tank for the
presence of a blue coat and doing
related investigative and corrective
actions if necessary. The related
investigative action is to measure the
electrical resistance between the
equipment and structure, if a blue coat
is not present. The corrective action is
to electrically bond the equipment, if
the measured resistance is greater than
10 milliohms. Service Bulletins A300–
28–0079, A300–28–6064, and A310–28–
2142 also describe procedures for
installing new bonding leads and
electrical bonding points on certain
equipment in the left and right wing
fuel tanks and center fuel tank.
Service Bulletin A310–28–2153
describes procedures for installing new
bonding lead(s) on the water drain
system of the trim fuel tank and
installing electrical bonding points on
the ventilation intake system, vent float
valves, ventilation system at numerous
positions, water drain valve, water drain
system, adapter-bulkhead, indicatormagnetic level, and scavenger fuel
pump of the trim fuel tank.
Service Bulletin A300–28–6077
describes procedures for installing new
bonding lead(s) on the water drain
system of the trim fuel tank and
installing electrical bonding points on
the ventilation intake system, vent float
valves, ventilation system at numerous
positions, water drain valve, water drain
system, adapter-bulkhead, and
indicator-magnetic level of the trim fuel
tank, for configuration 01 and 02
airplanes. Service Bulletin A300–28–
6077 also describes procedures for
installing electrical bonding points on
the scavenger fuel pump of the trim fuel
tank on configuration 03 airplanes and
installing electrical bonding on the
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15:07 May 16, 2006
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ventilation intake system of the trim
fuel tank on configuration 04 airplanes.
Accomplishing the actions specified
in the service information is intended to
adequately address the unsafe
condition. The DGAC mandated the
service information and issued
airworthiness directive F–2006–031,
dated February 1, 2006, to ensure the
continued airworthiness of these
airplanes in France.
FAA’s Determination and Requirements
of the Proposed AD
These airplane models are
manufactured in France and are type
certificated for operation in the United
States under the provisions of § 21.29 of
the Federal Aviation Regulations (14
CFR 21.29) and the applicable bilateral
airworthiness agreement. Pursuant to
this bilateral airworthiness agreement,
the DGAC has kept the FAA informed
of the situation described above. We
have examined the DGAC’s findings,
evaluated all pertinent information, and
determined that we need to issue an AD
for airplanes of this type design that are
certificated for operation in the United
States.
Therefore, we are proposing this AD,
which would require accomplishing the
actions specified in the service
information described previously,
except as discussed under ‘‘Differences
Between the Proposed AD and French
Airworthiness Directive.’’
Differences Between the Proposed AD
and French Airworthiness Directive
The applicability of French
airworthiness directive F–2006–031
excludes A300 airplanes on which
Airbus Service Bulletins A300–28–0079
and A300–28–0081 were accomplished
in service. French airworthiness
directive F–2006–031 also excludes
A310 airplanes on which Airbus Service
Bulletins A310–28–2142 and A310–28–
2143 were accomplished in service and,
for airplanes equipped with trim fuel
tanks, on which Airbus Service Bulletin
A310–28–2153 was accomplished in
service. However, we have not excluded
those airplanes in the applicability of
this proposed AD; rather, this proposed
AD includes a requirement to
accomplish the actions specified in
those service bulletins, as applicable.
This requirement would ensure that the
actions specified in the service bulletins
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A300–28–6064
A300–28–6068
A300–28–6077
28613
Dated—
July 28, 2005.
July 20, 2005.
July 25, 2005.
and required by this proposed AD are
accomplished on all affected airplanes.
Operators must continue to operate the
airplane in the configuration required
by this proposed AD unless an
alternative method of compliance is
approved. These differences have been
coordinated with the DGAC.
The applicability of French
airworthiness directive F–2006–031
excludes A300–600 airplanes not
equipped with trim fuel tanks that have
received Airbus Modifications 12308
and 12495 in production. French
airworthiness directive F–2006–031 also
excludes A300–600 airplanes equipped
with trim fuel tanks that have received
Airbus Modifications 12308, 12495,
12294, and 12476 in production.
However, the DGAC has informed us
that the applicability of French
airworthiness directive F–2006–031
should have excluded A300–600
airplanes not equipped with trim fuel
tanks on which Airbus Modifications
12226, 12365, and 12308 have been
incorporated in production and A300–
600 airplanes equipped with trim fuel
tanks on which Airbus Modifications
12226, 12365, 12308, 12294, and 12476
have been incorporated in production;
therefore, we have excluded these
airplanes in the applicability of this
proposed AD.
Clarification of Inspection Terminology
The ‘‘inspection’’ specified in Service
Bulletins A300–28–0081, A300–28–
6068, and A310–28–2143 and the
‘‘check’’ specified in Service Bulletins
A300–28–0079, A300–28–6064, and
A310–28–2142 are referred to as a
‘‘general visual inspection’’ in this
proposed AD. We have included the
definition for a detailed inspection in a
note in this proposed AD.
Costs of Compliance
There are about 29 Model A300
airplanes, 63 Model 310 airplanes, and
102 Model A300–600 series airplanes of
the affected design in the worldwide
fleet. The following table provides the
estimated costs, at an average labor rate
of $80 per hour, for U.S. operators to
comply with this proposed AD. For
some actions, the estimated work hours
and cost of parts in the following table
depend on the airplane configuration.
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Federal Register / Vol. 71, No. 95 / Wednesday, May 17, 2006 / Proposed Rules
ESTIMATED COSTS
Model
A300 airplanes.
A310 airplanes.
A300–600 series airplanes.
Work
hours
Action
Inspect wing and center fuel
tanks for P-clips.
Install bonding leads/points
in wing and center fuel
tank.
Inspect wing and center fuel
tanks for P-clips.
Install bonding leads/points
in wing and center fuel
tank.
Inspect and install bonding
leads/points in the trim
fuel tank.
Inspect wing and center fuel
tanks for P-clips.
Install bonding leads/points
in wing and center fuel
tank.
Inspect and install bonding
leads/points in the trim
fuel tank.
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.
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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;
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15:07 May 16, 2006
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40
136–155
40
248–285
Parts
Number of
U.S.registered
airplanes
Cost per airplane
None .................
$3,800–$5,200
$3,200
29
$92,800
$14,680–$17,600
29
$425,720–$510,400
$3,200
63
$201,600
$28,680–$31,990
63
$1,806,840–$2,015,370
None .................
$8,840–$9,190
Fleet cost
53–61
$50–$70 ...........
$4,290–$4,950
63
$270,270–$311,850
40
$3,200
102
$326,400
157–185
None .................
......................
$8,840–$9,190
$21,400–$23,990
102
$2,182,800–$2,446,980
2–61
$50–$70 ...........
$210–$4,950
102
$21,420–$504,900
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.
§ 39.13
[Amended]
2. The Federal Aviation
Administration (FAA) amends § 39.13
by adding the following new
airworthiness directive (AD):
Airbus: Docket No. FAA–2006–24779;
Directorate Identifier 2006–NM–044–AD.
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Comments Due Date
(a) The FAA must receive comments on
this AD action by June 16, 2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to the Airbus airplanes
identified in paragraphs (c)(1) and (c)(2) of
this AD, certificated in any category.
(1) All Model A300 airplanes and Model
A310 airplanes.
(2) Model A300 B4–601, B4–603, B4–620,
and B4–622 airplanes; Model A300 B4–605R
and B4–622R airplanes; Model A300 F4–
605R and F4–622R airplanes; and Model
A300 C4–605R Variant F airplanes; except
those airplanes identified in paragraphs
(c)(2)(i) and (c)(2)(ii) of this AD.
(i) Airplanes not equipped with trim fuel
tanks on which Airbus Modifications 12226,
12365, and 12308 have been incorporated in
production.
(ii) Airplanes equipped with trim fuel
tanks on which Airbus Modifications 12226,
12365, 12308, 12294, and 12476 have been
incorporated in production.
Unsafe Condition
(d) This AD results from fuel system
reviews conducted by the manufacturer. We
are issuing this AD to ensure continuous
electrical bonding protection of equipment in
the wing, center, and trim fuel tanks and to
prevent damage to wiring in the wing and
center fuel tanks, due to failed P-clips used
for retaining the wiring and pipes, which
could result in a possible fuel ignition source
in the fuel tanks.
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.
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Federal Register / Vol. 71, No. 95 / Wednesday, May 17, 2006 / Proposed Rules
Service Bulletin References
(f) The term ‘‘service bulletin,’’ as used in
this AD, means the Accomplishment
28615
Instructions of the service bulletin identified
in Table 1 of this AD, as applicable.
TABLE 1.—SERVICE BULLETIN REFERENCES
For Airbus—
And the actions specified in—
Model A300 airplanes .......................................................................
paragraph
paragraph
paragraph
paragraph
paragraph
paragraph
Airbus service
bulletin—
Dated—
Model A300 B4–601, B4–603, B4–620, and B4–622 airplanes;
Model A300 B4–605R and B4–622R airplanes; Model A300 F4–
605R and F4–622R airplanes; and Model A300 C4–605R Variant F airplanes.
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Inspection and Corrective Actions
(g) Within 59 months after the effective
date of this AD: Do a general visual
inspection of the right and left wing fuel
tanks and center fuel tank, if applicable, to
determine if any NSA5516–XXND and
NSA5516–XXNJ type P-clips are installed for
retaining wiring and pipes in any tank, and
do all applicable corrective actions before
further flight after the inspection, by
accomplishing all the actions specified in the
service bulletin.
Note 1: For the purposes of this AD, a
general visual inspection is: ‘‘A visual
examination of an interior or exterior area,
installation, or assembly to detect obvious
damage, failure, or irregularity. This level of
inspection is made from within touching
distance unless otherwise specified. A mirror
may be necessary to ensure visual access to
all surfaces in the inspection area. This level
of inspection is made under normally
available lighting conditions such as
daylight, hangar lighting, flashlight, or
droplight and may require removal or
opening of access panels or doors. Stands,
ladders, or platforms may be required to gain
proximity to the area being checked.’’
Installation of Bonding Leads and Points for
Wing and Center Fuel Tanks
(h) Within 59 months after the effective
date of this AD: Do the actions specified in
paragraphs (h)(1) and (h)(2) of this AD, by
accomplishing all the actions specified in the
service bulletin.
(1) In the center fuel tank, if applicable, do
a general visual inspection of the electrical
bonding points of the equipment identified
in the service bulletin for the presence of a
blue coat, and do all related investigative and
corrective actions before further flight after
the inspection.
(2) In the left and right wing fuel tanks and
center fuel tank, if applicable, install bonding
leads and electrical bonding points on the
equipment identified in the service bulletin.
Installation of Bonding Leads and Points for
the Trim Fuel Tank
(i) For Model A310 airplanes; Model A300
B4–601, B4–603, B4–620, and B4–622
airplanes; Model A300 B4–605R and B4–
VerDate Aug<31>2005
15:07 May 16, 2006
Jkt 208001
A300–28–0081
A300–28–0079
A310–28–2143
A310–28–2142
A310–28–2153
A300–28–6068
July 20, 2005.
September 29, 2005.
July 20, 2005.
August 26, 2005.
July 20, 2005.
July 20, 2005.
paragraph (h) of this AD .............
paragraph (i) of this AD ..............
Model A310 airplanes .......................................................................
(g) of this AD .............
(h) of this AD .............
(g) of this AD .............
(h) of this AD .............
(i) of this AD ..............
(g) of this AD .............
A300–28–6064
A300–28–6077
July 28, 2005.
July 25, 2005.
622R airplanes; Model A300 F4–605R and
F4–622R airplanes; and Model A300 C4–
605R Variant F airplanes; equipped with a
trim fuel tank: Within 59 months after the
effective date of this AD, install a new
bonding lead(s) on the water drain system of
the trim fuel tank and install electrical
bonding points on the equipment identified
in the service bulletin in the trim fuel tank,
by accomplishing all the actions specified in
the service bulletin, as applicable.
Parts Installation
(j) As of the effective date of this AD, no
person may install any NSA5516–XXND or
NSA5516–XXNJ type P-clip for retaining
wiring and pipes in any wing, center, or trim
fuel tank, on any airplane.
Alternative Methods of Compliance
(AMOCs)
(k)(1) The Manager, International Branch,
ANM–116, Transport Airplane Directorate,
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.
Related Information
(l) French airworthiness directive F–2006–
031, dated February 1, 2006, also addresses
the subject of this AD.
Issued in Renton, Washington, on May 8,
2006.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E6–7481 Filed 5–16–06; 8:45 am]
BILLING CODE 4910–13–P
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Frm 00026
Fmt 4702
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2006–23690; Directorate
Identifier 2004–NM–133–AD]
RIN 2120–AA64
Airworthiness Directives; Airbus Model
A300 B2 and B4 Series Airplanes; and
Model A300 B4–600, B4–600R, and F4–
600R Series Airplanes, and Model C4–
605R Variant F Airplanes (Collectively
Called A300–600 Series Airplanes)
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Supplemental notice of
proposed rulemaking (NPRM);
reopening of comment period.
AGENCY:
SUMMARY: The FAA is revising an earlier
NPRM for an airworthiness directive
(AD) that applies to certain Airbus
Model A300 B2, A300 B4, and A300–
600 series airplanes. The original NPRM
would have superseded two existing
ADs. One AD currently requires an
inspection for cracks of the lower
outboard flange of gantry No. 4 in the
main landing gear (MLG) bay area, and
repair if necessary. The other AD
currently requires, among other actions,
repetitive inspections of the gantry
lower flanges, and repair if necessary.
The original NPRM proposed to require
new repetitive inspections for cracks in
the lower flange of certain gantries, and
repair if necessary, which ends the
existing inspection requirements. The
original NPRM also provided for
optional terminating actions for the new
repetitive inspections. This new action
revises the original NPRM by including
additional airplanes that were excluded
from the applicability. We are proposing
E:\FR\FM\17MYP1.SGM
17MYP1
]]>Agencies
[Federal Register Volume 71, Number 95 (Wednesday, May 17, 2006)]
[Proposed Rules]
[Pages 28611-28615]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E6-7481]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-24779; Directorate Identifier 2006-NM-044-AD]
RIN 2120-AA64
Airworthiness Directives; Airbus Model A300 Airplanes; Model A310
Airplanes; and Model A300 B4-600, B4-600R, and F4-600R Series Airplanes
and Model C4-605R Variant F Airplanes (Collectively Called A300-600
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 Airbus Model A300 airplanes and Model A310 airplanes and for
certain Airbus Model A300-600 series airplanes. This proposed AD would
require an inspection of the wing and center fuel tanks to determine if
certain P-clips are installed and corrective action if necessary. This
proposed AD also would require an inspection of electrical bonding
points of certain equipment in the center fuel tank for the presence of
a blue coat and related investigative and corrective actions if
necessary. This proposed AD also would require installation of new
bonding leads and electrical bonding points on certain equipment in the
wing, center, and trim fuel tanks, as necessary. This proposed AD
results from fuel system reviews conducted by the manufacturer. We are
proposing this AD to ensure continuous electrical bonding protection of
equipment in the wing, center, and trim fuel tanks and to prevent
damage to wiring in the wing and center fuel tanks, due to failed P-
clips used for retaining the wiring and pipes, which could result in a
possible fuel ignition source in the fuel tanks.
DATES: We must receive comments on this proposed AD by June 16, 2006.
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: Docket Management Facility, U.S. Department of
Transportation, 400 Seventh Street, SW., Nassif Building, room PL-401,
Washington, DC 20590.
Fax: (202) 493-2251.
Hand Delivery: Room PL-401 on the plaza level of the
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
Contact Airbus, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex,
France,
[[Page 28612]]
for service information identified in this proposed AD.
FOR FURTHER INFORMATION CONTACT: Tom Stafford, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425)
227-1622; fax (425) 227-1149.
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-2006-
24779; Directorate Identifier 2006-NM-044-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 the 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 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 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
The FAA has examined the underlying safety issues involved in fuel
tank explosions on several large transport airplanes, including the
adequacy of existing regulations, the service history of airplanes
subject to those regulations, and existing maintenance practices for
fuel tank systems. As a result of those findings, we issued a
regulation titled ``Transport Airplane Fuel Tank System Design Review,
Flammability Reduction and Maintenance and Inspection Requirements''
(67 FR 23086, May 7, 2001). In addition to new airworthiness standards
for transport airplanes and new maintenance requirements, this rule
included Special Federal Aviation Regulation No. 88 (``SFAR 88,''
Amendment 21-78, and subsequent Amendments 21-82 and 21-83).
Among other actions, SFAR 88 requires certain type design (i.e.,
type certificate (TC) and supplemental type certificate (STC)) holders
to substantiate that their fuel tank systems can prevent ignition
sources in the fuel tanks. This requirement applies to type design
holders for large turbine-powered transport airplanes and for
subsequent modifications to those airplanes. It requires them to
perform design reviews and to develop design changes and maintenance
procedures if their designs do not meet the new fuel tank safety
standards. As explained in the preamble to the rule, we intended to
adopt airworthiness directives to mandate any changes found necessary
to address unsafe conditions identified as a result of these reviews.
In evaluating these design reviews, we have established four criteria
intended to define the unsafe conditions associated with fuel tank
systems that require corrective actions. The percentage of operating
time during which fuel tanks are exposed to flammable conditions is one
of these criteria. The other three criteria address the failure types
under evaluation: Single failures, single failures in combination with
a latent condition(s), and in-service failure experience. For all four
criteria, the evaluations included consideration of previous actions
taken that may mitigate the need for further action.
The Joint Aviation Authorities (JAA) has issued a regulation that
is similar to SFAR 88. (The JAA is an associated body of the European
Civil Aviation Conference (ECAC) representing the civil aviation
regulatory authorities of a number of European States who have agreed
to co-operate in developing and implementing common safety regulatory
standards and procedures.) Under this regulation, the JAA stated that
all members of the ECAC that hold type certificates for transport
category airplanes are required to conduct a design review against
explosion risks.
We have determined that the actions identified in this AD are
necessary to reduce the potential of ignition sources inside fuel
tanks, which, in combination with flammable fuel vapors, could result
in fuel tank explosions and consequent loss of the airplane.
The Direction G[eacute]n[eacute]rale de l'Aviation Civile (DGAC),
which is the airworthiness authority for France, notified us that an
unsafe condition may exist on all Airbus Model A300 airplanes and A310
airplanes and on certain Model A300 B4-600, B4-600R, and F4-600R series
airplanes and Model C4-605R Variant F airplanes (collectively called
A300-600 series airplanes). The DGAC advises that the inserts on
NSA5516-XXND and NSA5516-XXNJ type P-clips, which are used to retain
wiring and pipes in wing and center fuel tanks, may swell and soften
when immersed in fuel or fuel vapor. Investigation revealed that failed
P-clips could chafe through the insulation of the wiring. Damage to
wiring in the wing and center fuel tanks, if not corrected, could
result in a possible fuel ignition source in the fuel tanks.
The DGAC advises that, as a result of fuel system reviews conducted
by the manufacturer, continuous electrical bonding protection of
equipment in the wing, center, and trim fuel tanks, as applicable, is
also necessary to ensure that the unsafe condition of this AD is
addressed.
Relevant Service Information
Airbus has issued the following service bulletins:
----------------------------------------------------------------------------------------------------------------
Airbus service
Airbus-- bulletin-- Dated--
----------------------------------------------------------------------------------------------------------------
Model A300 airplanes........................... A300-28-0079 September 29, 2005.
A300-28-0081 July 20, 2005.
Model A310 airplanes........................... A310-28-2142 August 26, 2005.
A310-28-2143 July 20, 2005.
A310-28-2153 July 20, 2005.
[[Page 28613]]
Model A300-600 series airplanes................ A300-28-6064 July 28, 2005.
A300-28-6068 July 20, 2005.
A300-28-6077 July 25, 2005.
----------------------------------------------------------------------------------------------------------------
Service Bulletins A300-28-0081, A300-28-6068, and A310-28-2143
describe procedures for inspecting the left and right wing fuel tanks
and center fuel tank to determine if any NSA5516-XXND and NSA5516-XXNJ
type P-clips are installed for retaining wiring and pipes in any tank
and corrective action if necessary. The corrective action is to replace
any NSA5516-XXND and NSA5516-XXNJ type P-clips with NSA5516-XXNF type
P-clips.
Service Bulletins A300-28-0079, A300-28-6064, and A310-28-2142
describe procedures for checking the electrical bonding points of
certain equipment in the center fuel tank for the presence of a blue
coat and doing related investigative and corrective actions if
necessary. The related investigative action is to measure the
electrical resistance between the equipment and structure, if a blue
coat is not present. The corrective action is to electrically bond the
equipment, if the measured resistance is greater than 10 milliohms.
Service Bulletins A300-28-0079, A300-28-6064, and A310-28-2142 also
describe procedures for installing new bonding leads and electrical
bonding points on certain equipment in the left and right wing fuel
tanks and center fuel tank.
Service Bulletin A310-28-2153 describes procedures for installing
new bonding lead(s) on the water drain system of the trim fuel tank and
installing electrical bonding points on the ventilation intake system,
vent float valves, ventilation system at numerous positions, water
drain valve, water drain system, adapter-bulkhead, indicator-magnetic
level, and scavenger fuel pump of the trim fuel tank.
Service Bulletin A300-28-6077 describes procedures for installing
new bonding lead(s) on the water drain system of the trim fuel tank and
installing electrical bonding points on the ventilation intake system,
vent float valves, ventilation system at numerous positions, water
drain valve, water drain system, adapter-bulkhead, and indicator-
magnetic level of the trim fuel tank, for configuration 01 and 02
airplanes. Service Bulletin A300-28-6077 also describes procedures for
installing electrical bonding points on the scavenger fuel pump of the
trim fuel tank on configuration 03 airplanes and installing electrical
bonding on the ventilation intake system of the trim fuel tank on
configuration 04 airplanes.
Accomplishing the actions specified in the service information is
intended to adequately address the unsafe condition. The DGAC mandated
the service information and issued airworthiness directive F-2006-031,
dated February 1, 2006, to ensure the continued airworthiness of these
airplanes in France.
FAA's Determination and Requirements of the Proposed AD
These airplane models are manufactured in France and are type
certificated for operation in the United States under the provisions of
Sec. 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and the
applicable bilateral airworthiness agreement. Pursuant to this
bilateral airworthiness agreement, the DGAC has kept the FAA informed
of the situation described above. We have examined the DGAC's findings,
evaluated all pertinent information, and determined that we need to
issue an AD for airplanes of this type design that are certificated for
operation in the United States.
Therefore, we are proposing this AD, which would require
accomplishing the actions specified in the service information
described previously, except as discussed under ``Differences Between
the Proposed AD and French Airworthiness Directive.''
Differences Between the Proposed AD and French Airworthiness Directive
The applicability of French airworthiness directive F-2006-031
excludes A300 airplanes on which Airbus Service Bulletins A300-28-0079
and A300-28-0081 were accomplished in service. French airworthiness
directive F-2006-031 also excludes A310 airplanes on which Airbus
Service Bulletins A310-28-2142 and A310-28-2143 were accomplished in
service and, for airplanes equipped with trim fuel tanks, on which
Airbus Service Bulletin A310-28-2153 was accomplished in service.
However, we have not excluded those airplanes in the applicability of
this proposed AD; rather, this proposed AD includes a requirement to
accomplish the actions specified in those service bulletins, as
applicable. This requirement would ensure that the actions specified in
the service bulletins and required by this proposed AD are accomplished
on all affected airplanes. Operators must continue to operate the
airplane in the configuration required by this proposed AD unless an
alternative method of compliance is approved. These differences have
been coordinated with the DGAC.
The applicability of French airworthiness directive F-2006-031
excludes A300-600 airplanes not equipped with trim fuel tanks that have
received Airbus Modifications 12308 and 12495 in production. French
airworthiness directive F-2006-031 also excludes A300-600 airplanes
equipped with trim fuel tanks that have received Airbus Modifications
12308, 12495, 12294, and 12476 in production. However, the DGAC has
informed us that the applicability of French airworthiness directive F-
2006-031 should have excluded A300-600 airplanes not equipped with trim
fuel tanks on which Airbus Modifications 12226, 12365, and 12308 have
been incorporated in production and A300-600 airplanes equipped with
trim fuel tanks on which Airbus Modifications 12226, 12365, 12308,
12294, and 12476 have been incorporated in production; therefore, we
have excluded these airplanes in the applicability of this proposed AD.
Clarification of Inspection Terminology
The ``inspection'' specified in Service Bulletins A300-28-0081,
A300-28-6068, and A310-28-2143 and the ``check'' specified in Service
Bulletins A300-28-0079, A300-28-6064, and A310-28-2142 are referred to
as a ``general visual inspection'' in this proposed AD. We have
included the definition for a detailed inspection in a note in this
proposed AD.
Costs of Compliance
There are about 29 Model A300 airplanes, 63 Model 310 airplanes,
and 102 Model A300-600 series airplanes of the affected design in the
worldwide fleet. The following table provides the estimated costs, at
an average labor rate of $80 per hour, for U.S. operators to comply
with this proposed AD. For some actions, the estimated work hours and
cost of parts in the following table depend on the airplane
configuration.
[[Page 28614]]
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Number of
Work U.S.-
Model Action hours Parts Cost per airplane registered Fleet cost
airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
A300 airplanes................... Inspect wing and 40 None.................... $3,200 29 $92,800
center fuel tanks
for P-clips.
Install bonding 136-155 $3,800-$5,200........... $14,680-$17,600 29 $425,720-$510,400
leads/points in
wing and center
fuel tank.
A310 airplanes................... Inspect wing and 40 None.................... $3,200 63 $201,600
center fuel tanks
for P-clips.
Install bonding 248-285 $8,840-$9,190........... $28,680-$31,990 63 $1,806,840-$2,015,370
leads/points in
wing and center
fuel tank.
Inspect and install 53-61 $50-$70................. $4,290-$4,950 63 $270,270-$311,850
bonding leads/
points in the trim
fuel tank.
A300-600 series airplanes........ Inspect wing and 40 None.................... $3,200 102 $326,400
center fuel tanks ......... ........................ .................. ............ .........................
for P-clips. 157-185 $8,840-$9,190........... $21,400-$23,990 102 $2,182,800-$2,446,980
Install bonding
leads/points in
wing and center
fuel tank.
Inspect and install 2-61 $50-$70................. $210-$4,950 102 $21,420-$504,900
bonding leads/
points in the trim
fuel tank.
--------------------------------------------------------------------------------------------------------------------------------------------------------
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):
Airbus: Docket No. FAA-2006-24779; Directorate Identifier 2006-NM-
044-AD.
Comments Due Date
(a) The FAA must receive comments on this AD action by June 16,
2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to the Airbus airplanes identified in
paragraphs (c)(1) and (c)(2) of this AD, certificated in any
category.
(1) All Model A300 airplanes and Model A310 airplanes.
(2) Model A300 B4-601, B4-603, B4-620, and B4-622 airplanes;
Model A300 B4-605R and B4-622R airplanes; Model A300 F4-605R and F4-
622R airplanes; and Model A300 C4-605R Variant F airplanes; except
those airplanes identified in paragraphs (c)(2)(i) and (c)(2)(ii) of
this AD.
(i) Airplanes not equipped with trim fuel tanks on which Airbus
Modifications 12226, 12365, and 12308 have been incorporated in
production.
(ii) Airplanes equipped with trim fuel tanks on which Airbus
Modifications 12226, 12365, 12308, 12294, and 12476 have been
incorporated in production.
Unsafe Condition
(d) This AD results from fuel system reviews conducted by the
manufacturer. We are issuing this AD to ensure continuous electrical
bonding protection of equipment in the wing, center, and trim fuel
tanks and to prevent damage to wiring in the wing and center fuel
tanks, due to failed P-clips used for retaining the wiring and
pipes, which could result in a possible fuel ignition source in the
fuel tanks.
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.
[[Page 28615]]
Service Bulletin References
(f) The term ``service bulletin,'' as used in this AD, means the
Accomplishment Instructions of the service bulletin identified in
Table 1 of this AD, as applicable.
Table 1.--Service Bulletin References
----------------------------------------------------------------------------------------------------------------
And the actions Airbus service
For Airbus-- specified in-- bulletin-- Dated--
----------------------------------------------------------------------------------------------------------------
Model A300 airplanes................ paragraph (g) of this A300-28-0081 July 20, 2005.
AD.
paragraph (h) of this A300-28-0079 September 29, 2005.
AD.
Model A310 airplanes................ paragraph (g) of this A310-28-2143 July 20, 2005.
AD.
paragraph (h) of this A310-28-2142 August 26, 2005.
AD.
paragraph (i) of this A310-28-2153 July 20, 2005.
AD.
Model A300 B4-601, B4-603, B4-620, paragraph (g) of this A300-28-6068 July 20, 2005.
and B4-622 airplanes; Model A300 B4- AD.
605R and B4-622R airplanes; Model
A300 F4-605R and F4-622R airplanes;
and Model A300 C4-605R Variant F
airplanes.
paragraph (h) of this A300-28-6064 July 28, 2005.
AD.
paragraph (i) of this A300-28-6077 July 25, 2005.
AD.
----------------------------------------------------------------------------------------------------------------
Inspection and Corrective Actions
(g) Within 59 months after the effective date of this AD: Do a
general visual inspection of the right and left wing fuel tanks and
center fuel tank, if applicable, to determine if any NSA5516-XXND
and NSA5516-XXNJ type P-clips are installed for retaining wiring and
pipes in any tank, and do all applicable corrective actions before
further flight after the inspection, by accomplishing all the
actions specified in the service bulletin.
Note 1: For the purposes of this AD, a general visual inspection
is: ``A visual examination of an interior or exterior area,
installation, or assembly to detect obvious damage, failure, or
irregularity. This level of inspection is made from within touching
distance unless otherwise specified. A mirror may be necessary to
ensure visual access to all surfaces in the inspection area. This
level of inspection is made under normally available lighting
conditions such as daylight, hangar lighting, flashlight, or
droplight and may require removal or opening of access panels or
doors. Stands, ladders, or platforms may be required to gain
proximity to the area being checked.''
Installation of Bonding Leads and Points for Wing and Center Fuel Tanks
(h) Within 59 months after the effective date of this AD: Do the
actions specified in paragraphs (h)(1) and (h)(2) of this AD, by
accomplishing all the actions specified in the service bulletin.
(1) In the center fuel tank, if applicable, do a general visual
inspection of the electrical bonding points of the equipment
identified in the service bulletin for the presence of a blue coat,
and do all related investigative and corrective actions before
further flight after the inspection.
(2) In the left and right wing fuel tanks and center fuel tank,
if applicable, install bonding leads and electrical bonding points
on the equipment identified in the service bulletin.
Installation of Bonding Leads and Points for the Trim Fuel Tank
(i) For Model A310 airplanes; Model A300 B4-601, B4-603, B4-620,
and B4-622 airplanes; Model A300 B4-605R and B4-622R airplanes;
Model A300 F4-605R and F4-622R airplanes; and Model A300 C4-605R
Variant F airplanes; equipped with a trim fuel tank: Within 59
months after the effective date of this AD, install a new bonding
lead(s) on the water drain system of the trim fuel tank and install
electrical bonding points on the equipment identified in the service
bulletin in the trim fuel tank, by accomplishing all the actions
specified in the service bulletin, as applicable.
Parts Installation
(j) As of the effective date of this AD, no person may install
any NSA5516-XXND or NSA5516-XXNJ type P-clip for retaining wiring
and pipes in any wing, center, or trim fuel tank, on any airplane.
Alternative Methods of Compliance (AMOCs)
(k)(1) The Manager, International Branch, ANM-116, Transport
Airplane Directorate, 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.
Related Information
(l) French airworthiness directive F-2006-031, dated February 1,
2006, also addresses the subject of this AD.
Issued in Renton, Washington, on May 8, 2006.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E6-7481 Filed 5-16-06; 8:45 am]
BILLING CODE 4910-13-P
