[Federal Register Volume 77, Number 24 (Monday, February 6, 2012)]
[Proposed Rules]
[Pages 5728-5730]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-2625]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012 0040; Directorate Identifier 2011-NM-121-AD]
RIN 2120-AA64
Airworthiness Directives; Airbus Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: We propose to adopt a new airworthiness directive (AD) for all
Airbus Model A300 series airplanes; all Model A300 B4-600, B4-600R, and
F4-600R series airplanes, and Model C4-605R Variant F airplanes
(collectively called A300-600 series airplanes). This proposed AD was
prompted by reports of an inoperative fire shut-off valve (FSOV) as a
result of damage due to over-length of the bonding lead. This proposed
AD would require a one-time detailed inspection for length of the FSOV
bonding leads and for contact or chafing of the wires, and corrective
actions, if necessary. We are proposing this AD to detect and correct
contact or chafing of wires and bonding leads which, if not detected
could be a source of sparks in the wing trailing edge, and could lead
to an uncontrolled engine fire.
DATES: We must receive comments on this proposed AD by March 22, 2012.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
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: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
For service information identified in this proposed AD, contact
Airbus SAS-EAW (Airworthiness Office), 1 Rond Point Maurice Bellonte,
31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61
93 44 51; email: [email protected]; Internet http://www.airbus.com. You may review copies of the referenced service
information at the FAA, Transport Airplane Directorate, 1601 Lind
Avenue SW., Renton, Washington. For information on the availability of
this material at the FAA, call (425) 227-1221.
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.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: Dan Rodina, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue SW., Renton, Washington 98057-3356; telephone (425)
227-2125; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION:
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-2012-0040;
Directorate Identifier 2011-NM-121-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
[[Page 5729]]
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD based on those comments.
We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.
Discussion
The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Community, has issued EASA
AD 2011-0084, dated May 24, 2011 (referred to after this as ``the
MCAI''), to correct an unsafe condition for the specified products. The
MCAI states:
During a scheduled maintenance check, one operator reported
inoperative FSOV [fire shut-off valve]. Investigations showed damage
at wire located between engine 2 Hydraulic FSOV and wing rear spar,
in the zones 575/675, and at bonding lead, located between wing Rib
7A and Rib 8 below Hydraulic Pressure Lines.
Similar inspections on different aeroplanes have shown that one
of the causes of damage, is the contact between bonding lead and the
harness, due to over length of the bonding lead.
As the affected wire is not powered during normal operation, no
defect had been detected. The defect was detected when a test was
performed on the FSOV during maintenance check by the operator.
This condition, in the scope of published FAA SFAR88 and JAA
Internal Policy INT/POL/25/12, is considered to be a potential
source of sparks in the wing trailing edge area and if not detected,
could lead to an uncontrolled engine fire.
For the reasons stated above, this [EASA] AD requires a one-time
[detailed] inspection of the wires [for contact or chafing] located
between LH/RH engines Hydraulic FSOV and wing rear spar in the zones
575/675, and the bonding lead [for length] that is located between
Rib 7A and Rib 8 below Hydraulic Pressure Lines, and corrective
actions [repair wires or replace bonding leads] depending on
findings.
You may obtain further information by examining the MCAI in the AD
docket.
Relevant Service Information
Airbus has issued Mandatory Service Bulletins A300-24-0106 (for
Model A300 series airplanes); and A300-24-6108 (for Model A300-600
series airplanes); both including Appendices 01 and 02, both dated July
9, 2010. The actions described in this service information are intended
to correct the unsafe condition identified in the MCAI.
FAA's Determination and Requirements of This Proposed AD
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with the State of Design Authority, we have
been notified of the unsafe condition described in the MCAI and service
information referenced above. We are proposing this AD because we
evaluated all pertinent information and determined an unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
Costs of Compliance
Based on the service information, we estimate that this proposed AD
would affect about 125 products of U.S. registry. We also estimate that
it would take about 8 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $85 per
work-hour. Based on these figures, we estimate the cost of the proposed
AD on U.S. operators to be $85,000, or $680 per product.
In addition, we estimate that any necessary follow-on actions would
take about 1 work-hour and require parts costing $50, for a cost of
$135 per product. We have no way of determining the number of products
that may need these actions.
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 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 this 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);
3. Will not affect intrastate aviation in Alaska; and
4. 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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, 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 FAA amends Sec. 39.13 by adding the following new AD:
Airbus: Docket No. FAA-2012-0040; Directorate Identifier 2011-NM-
121-AD.
(a) Comments Due Date
We must receive comments by March 22, 2012.
(b) Affected ADs
None.
(c) Applicability
This AD applies to airplanes specified in paragraphs (c)(1),
(c)(2) and (c)(3) of this AD; certificated in any category; all
certificated models; all serial numbers.
(1) Airbus Model A300 B2-1A, B2-1C, B2K-3C, B2-203, B4-2C, B4-
103, and B4-203 airplanes.
(2) Airbus Model A300 B4-601, B4-603, B4-620, B4-622, B4-605R,
B4-622R, F4-605R, and F4-622 airplanes.
(3) Airbus Model A300 C4-605R Variant F airplanes.
(d) Subject
Air Transport Association (ATA) of America Code 24: Electrical
Power.
[[Page 5730]]
(e) Reason
This AD was prompted by reports of an inoperative fire shut-off
valve (FSOV) as a result of damage due to over-length of the bonding
lead. We are issuing this AD to detect and correct contact or
chafing of wires and bonding leads which, if not detected, could be
a source of sparks in the wing trailing edge, and could lead to an
uncontrolled engine fire.
(f) Compliance
You are responsible for having the actions required by this AD
performed within the compliance times specified, unless the actions
have already been done.
(g) Inspection of the FSOV Bonding Leads
Within 4,500 flight hours or 30 months after the effective date
of this AD, whichever occurs first: Do a one-time detailed
inspection for length of the FSOV bonding leads, and for contact or
chafing of the wires located on left hand (LH) side and right-hand
(RH) side of the wing rear spar, in accordance with Accomplishment
Instructions of the Airbus Mandatory Service Bulletin A300-24-0106,
dated July 9, 2010 (for Model A300 series airplanes); or Airbus
Mandatory Service Bulletin A300-24-6108, dated July 9, 2010 (for
Model A300-600 series airplanes).
(h) Corrective Action for FSOV Bonding Leads
If, during the inspection required by paragraph (g) of this AD,
the length of the bonding lead(s) is more than 80 mm (3.15 inches),
before further flight, replace the bonding lead(s) with a new
bonding lead having a length equal to 80 mm (3.15 inches), in
accordance with the Accomplishment Instructions of Airbus Mandatory
Service Bulletin A300-24-0106, dated July 9, 2010 (for Model A300
series airplanes); or Airbus Mandatory Service Bulletin A300-24-
6108, dated July 9, 2010 (for Model A300-600 series airplanes).
(i) Repair of the Wires of the LH and RH Sides
If, during the inspection required by paragraph (g) of this AD,
contact(s) or chafing(s) of the wires is found, repair the wires in
accordance with the Accomplishment Instructions of Airbus Mandatory
Service Bulletin A300-24-0106, dated July 9, 2010 (for Model A300
series airplanes); or Airbus Mandatory Service Bulletin A300-24-
6108, dated July 9, 2010 (for Model A300-600 series airplanes).
(j) Parts Installation
As of the effective date of this AD, no person may install any
bonding lead longer than 80 mm (3.15 inches), located between LH/RH
engine hydraulic FSOV and wing rear spar in the zones 575/675 on any
airplane.
(k) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Branch, ANM-116, FAA, has the authority to approve
AMOCs for this AD, if requested using the procedures found in 14 CFR
39.19. In accordance with 14 CFR 39.19, send your request to your
principal inspector or local Flight Standards District Office, as
appropriate. If sending information directly to the International
Branch, send it to ATTN: Dan Rodina, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue SW., Renton, Washington 98057-3356; telephone (425)
227-2125; fax (425) 227-1149.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(l) Related Information
Refer to MCAI European Aviation Safety Agency (EASA)
Airworthiness Directive 2011-0084, dated May 24, 2011; and the
service information identified in paragraphs (l)(1), and (l)(2) of
this AD; for related information.
(1) Airbus Mandatory Service Bulletin A300-24-0106, dated July
9, 2010.
(2) Airbus Mandatory Service Bulletin A300-24-6108, dated July
9, 2010.
Issued in Renton, Washington, on January 12, 2012.
Michael J. Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2012-2625 Filed 2-3-12; 8:45 am]
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