[Federal Register: December 3, 2007 (Volume 72, Number 231)]
[Proposed Rules]
[Page 67868-67870]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr03de07-16]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-0266; Directorate Identifier 2007-NM-170-AD]
RIN 2120-AA64
Airworthiness Directives; Airbus Model A330 Series Airplanes and
Model A340-200 and -300 Series Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Airbus Model A330 series airplanes and Model A340-200 and -
300 series airplanes. This proposed AD would require revising the
airplane flight manual (AFM) to prohibit the flightcrew from performing
CAT 2 and CAT 3 automatic landings and roll-outs at certain airports.
This AD also provides an optional terminating action for the AFM
revision. This proposed AD results from data showing that the magnetic
variation table installed in certain Honeywell and Northrop Grumman air
data inertial reference units (ADIRUs) is obsolete at certain airports.
We are proposing this AD to prevent the airplane from departing the
runway during a CAT 2 or CAT 3 automatic landing or roll-out, due to
differences between actual magnetic variation and the values in the
ADIRU magnetic variation tables.
DATES: We must receive comments on this proposed AD by January 2, 2008.
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 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
For service information identified in this AD, contact Airbus, 1
Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France.
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.gov
; or in person at the Docket Management Facility
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this proposed AD, the regulatory
evaluation, any comments received, and other information. The street
address for the Docket 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: Tim Backman, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425)
227-2797; 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-2007-0266;
Directorate Identifier 2007-NM-170-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 closing date and may amend
this
[[Page 67869]]
proposed AD because of 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 Union, notified us that an
unsafe condition may exist on certain Airbus Model A330 series
airplanes and Model A340-200 and -300 series airplanes equipped with
certain Honeywell or Northrop Grumman air data inertial reference units
(ADIRUs). The EASA advises that the magnetic variation table installed
in certain Honeywell and Northrop Grumman ADIRUs is obsolete at certain
airports. Studies have shown that, for a given airport, a difference
greater than 3 degrees between the real magnetic variation and the
variation in the ADIRU could result in misinformation to the flightcrew
during the phases of CAT 2 or CAT 3 automatic landing or roll-out. This
condition, if not corrected, could result in the airplane departing the
runway during a CAT 2 or CAT 3 automatic landing or roll-out.
Relevant Service Information
Airbus has issued the following temporary revisions (TRs) to the
A330 Airplane Flight Manual (AFM): TR 2.05.00/67, Issue 2, dated
September 19, 2007; and TR 2.05.00/68, dated March 31, 2006. Airbus has
also issued the following TRs to the A340 AFM: TR 2.05.00/87, Issue 2,
dated September 19, 2007; and TR 2.05.00/88, dated March 31, 2006. The
TRs provide operational limitations that prohibit the flightcrew from
performing CAT 2 and CAT 3 automatic landings and roll-outs at airports
where the difference between the real magnetic deviation and the
deviation in the ADIRU is greater than 3 degrees. The TRs also list the
affected airports and date by which automatic landings and roll-outs
are prohibited.
We have reviewed the service bulletins listed in the ``Optional
Terminating Action'' table, which describe procedures for replacing
certain ADIRUs with new, improved ADIRUs. Accomplishing the actions
specified in the applicable service bulletin would end the need for the
AFM revision.
Optional Terminating Action
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Model-- Airbus service bulletin--
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A330-200 and A330-300 series airplanes A330-34-3132, dated December
equipped with certain Northrop Grumman 16, 2003; or Revision 01,
ADIRUs. dated August 18, 2004.
A330-34-3159, dated February
10, 2005.
A330-200 and A330-300 series airplanes A330-34-3104, dated July 17,
equipped with certain Honeywell ADIRUs. 2003.
A330-34-3165, dated June 28,
2006.
A340-200 and A340-300 series airplanes A340-34-4141, dated December
equipped with certain Northrop Grumman 16, 2003; or Revision 01,
ADIRUs. dated August 18, 2004.
A340-34-4163, dated February
10, 2005.
A340-200 and A340-300 series airplanes A340-34-4114, dated July 17,
equipped with certain Honeywell ADIRUs. 2003.
A340-34-4166, dated June 28,
2006.
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Accomplishing the actions specified in the service information is
intended to adequately address the unsafe condition. The EASA mandated
the service information and issued airworthiness directive 2006-0232,
dated August 7, 2006, to ensure the continued airworthiness of these
airplanes in the European Union.
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
section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and
the applicable bilateral airworthiness agreement. As described in FAA
Order 8100.14A, ``Interim Procedures for Working with the European
Community on Airworthiness Certification and Continued Airworthiness,''
dated August 12, 2005, the EASA has kept the FAA informed of the
situation described above. We have examined the EASA'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 revising
the AFM to prohibit the flightcrew from performing CAT 2 and CAT 3
automatic landings and roll-outs at certain airports. This proposed AD
also provides an optional terminating action for the AFM revision.
Costs of Compliance
This proposed AD would affect about 40 airplanes of U.S. registry.
The proposed actions would take about 1 work hour per airplane, at an
average labor rate of $80 per work hour. Based on these figures, the
estimated cost of the proposed AD for U.S. operators is $3,200, or $80
per airplane.
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:
[[Page 67870]]
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-2007-0266; Directorate Identifier 2007-NM-
170-AD.
Comments Due Date
(a) The FAA must receive comments on this AD action by January
2, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Airbus Model A330-200, A330-300, A340-
200, and A340-300 series airplanes, certificated in any category;
equipped with the air data inertial reference units (ADIRUs)
identified in paragraphs (c)(1) and (c)(2) of this AD.
(1) Honeywell ADIRUs having part numbers (P/Ns) HG2030AC0X
(where X is any number between 0 and 9 inclusive) and P/Ns
HG2030ADYY (where YY is any number between 00 and 10 inclusive).
(2) Northrop Grumman (formerly Litton) ADIRUs having P/Ns
465020-030303ZZ (where ZZ is any number between 00 and 12
inclusive).
Unsafe Condition
(d) This AD results from data showing that the magnetic
variation table installed in certain Honeywell and Northrop Grumman
ADIRUs is obsolete at certain airports. We are issuing this AD to
prevent the airplane from departing the runway during a CAT 2 or CAT
3 automatic landing or roll-out, due to differences between actual
magnetic variation and the values in the ADIRU magnetic variation
tables.
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.
Temporary Revision (TR) References
(f) The term ``Temporary Revision,'' as used in this AD, means
the following TRs, as applicable:
(1) For Model A330-200 and A330-300 series airplanes equipped
with any Honeywell ADIRU identified in paragraph (c)(1) of this AD:
Airbus TR 2.05.00/67, Issue 2, dated September 19, 2007, to the
Airbus A330 Airplane Flight Manual (AFM);
(2) For Model A330-200 and A330-300 series airplanes equipped
with any Northrop Grumman ADIRU identified in paragraph (c)(2) of
this AD: Airbus TR 2.05.00/68, dated March 31, 2006, to the Airbus
A330 AFM;
(3) For Model A340-200 and A340-300 series airplanes equipped
with any Honeywell ADIRU identified in paragraph (c)(1) of this AD:
Airbus TR 2.05.00/87, Issue 2, dated September 19, 2007, to the
Airbus A340 AFM;
(4) For Model A340-200 and A340-300 series airplanes equipped
with any Northrop Grumman ADIRU identified in paragraph (c)(2) of
this AD: Airbus TR 2.05.00/88, dated March 31, 2006, to the Airbus
A340 AFM.
Airplane Flight Manual (AFM) Revision
(g) Within 14 days after the effective date of this AD, revise
the Limitations Section of the Airbus A330 or A340 AFM, as
applicable, to prohibit the flightcrew from performing CAT 2 and CAT
3 automatic landings and roll-outs at certain airports by
incorporating the applicable Temporary Revision into the AFM.
Operate the airplane according to the limitations in the applicable
TR.
(h) When the information in the applicable TR has been
incorporated into the general revisions of the Airbus A330 or A340
AFM, as applicable, the general revisions may be inserted into the
AFM, and the TR may be removed from the AFM.
Optional Terminating Action
(i) Replacing the ADIRUs with new, improved ADIRUs as specified
in paragraph (i)(1), (i)(2), (i)(3), or (i)(4) of this AD terminates
the AFM revision required by paragraph (g) of this AD.
(1) For Model A330-200 and A330-300 series airplanes equipped
with any Honeywell ADIRU identified in paragraph (c)(1) of this AD,
doing the replacement in accordance with the Accomplishment
Instructions of Airbus Service Bulletin A330-34-3165, dated June 28,
2006; or Airbus Service Bulletin A330-34-3104, dated July 17, 2003.
(2) For Model A330-200 and A330-300 series airplanes equipped
with any Northrop Grumman ADIRU identified in paragraph (c)(2) of
this AD, doing the replacement in accordance with the Accomplishment
Instructions of Airbus Service Bulletin A330-34-3132, dated December
16, 2003, or Revision 01, dated August 18, 2004; or Airbus Service
Bulletin A330-34-3159, dated February 10, 2005.
(3) For Model A340-200 and A340-300 series airplanes equipped
with any Honeywell ADIRU identified in paragraph (c)(1) of this AD,
doing the replacement in accordance with the Accomplishment
Instructions of Airbus Service Bulletin A340-34-4166, dated June 28,
2006; or Airbus Service Bulletin A340-34-4114, dated July 17, 2003.
(4) For Model A340-200 and A340-300 series airplanes equipped
with any Northrop Grumman ADIRU identified in paragraph (c)(2) of
this AD, doing the replacement in accordance with the Accomplishment
Instructions of Airbus Service Bulletin A340-34-4141, dated December
16, 2003, or Revision 01, dated August 18, 2004; or Airbus Service
Bulletin A340-34-4163, dated February 10, 2005.
Alternative Methods of Compliance (AMOCs)
(j)(1) The Manager, International Branch, ANM-116, 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.
Related Information
(k) European Aviation Safety Agency airworthiness directive
2006-0232, dated August 7, 2006, also addresses the subject of this
AD.
Issued in Renton, Washington, on November 23, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-23338 Filed 11-30-07; 8:45 am]
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