AD 2004-03-24
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A330-200 | Airworthiness Directives; Airbus Model A330-200, A330-300, A340-200, and A340-300 Series Airplanes |
Unsafe Condition
Potential for an undetected inoperative elevator due to cracking of the attachment lugs of the mode selector valve position transducers on the elevator servocontrols, which could result in partial loss of elevator function and reduced controllability.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Revise the airplane flight manual to include procedures for a pre-flight elevator check before each flight. Conduct repetitive inspections for cracks of the attachment lugs of the mode selector valve position transducers on the elevator servocontrols. Take corrective actions if necessary.
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Compliance Time
Before further flight.
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Affected Aircraft
All Airbus Model A330-200, A330-300, A340-200, and A340-300 series airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
This amendment adopts a new airworthiness directive (AD) that is applicable to all Airbus Model A330-200, A330-300, A340-200, and A340-300 series airplanes. This action requires a revision of the airplane flight manual to include procedures for a pre-flight elevator check before each flight, repetitive inspections for cracks of the attachment lugs of the mode selector valve position transducers on the elevator servocontrols, and corrective actions if necessary. This action is intended to advise the flightcrew of the potential for an undetected inoperative elevator, and of the action they must take to avoid this hazard. This action is necessary to ensure proper functioning of the elevator surfaces, and to detect and correct cracking of the attachment lugs, which could result in partial loss of elevator function and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
Document Text
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[Federal Register Volume 69, Number 28 (Wednesday, February 11, 2004)]
[Rules and Regulations]
[Pages 6549-6552]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 04-2683]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2003-NM-223-AD; Amendment 39-13468; AD 2004-03-24]
RIN 2120-AA64
Airworthiness Directives; Airbus Model A330-200, A330-300, A340-
200, and A340-300 Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule; request for comments.
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SUMMARY: This amendment adopts a new airworthiness directive (AD) that
is applicable to all Airbus Model A330-200, A330-300, A340-200, and
A340-300 series airplanes. This action requires a revision of the
airplane flight manual to include procedures for a pre-flight elevator
check before each flight, repetitive inspections for cracks of the
attachment lugs of the mode selector valve position transducers on the
elevator servocontrols, and corrective actions if necessary. This
action is intended to advise the flightcrew of the potential for an
undetected inoperative elevator, and of the action they must take to
avoid this hazard. This action is necessary to ensure proper
functioning of the elevator surfaces, and to detect and correct
cracking of the attachment lugs, which could result in partial loss of
elevator function and consequent reduced controllability of the
airplane. This action is intended to address the identified unsafe
condition.
DATES: Effective February 26, 2004.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of February 26, 2004.
Comments for inclusion in the Rules Docket must be received on or
before March 11, 2004.
ADDRESSES: Submit comments in triplicate to the Federal Aviation
Administration (FAA), Transport Airplane Directorate, ANM-114,
Attention: Rules Docket No. 2003-NM-223-AD, 1601 Lind Avenue, SW.,
Renton, Washington 98055-4056. Comments may be inspected at this
location between 9 a.m. and 3 p.m., Monday through Friday, except
Federal holidays. Comments may be submitted via fax to (425) 227-1232.
Comments may also be sent via the Internet using the following address:
<a href="/cdn-cgi/l/email-protection#caf3e7aba4a7e7a3abb8a9a5a7a7afa4be8aacababe4ada5bc"><span class="__cf_email__" data-cfemail="fcc5d19d9291d1959d8e9f939191999288bc9a9d9dd29b938a">[email protected]</span></a>. Comments sent via the Internet must contain
``Docket No. 2003-NM-223-AD'' in the subject line and need not be
submitted in triplicate. Comments sent via fax or the Internet as
attached electronic files must be formatted in Microsoft Word 97 or
2000 or ASCII text.
The service information referenced in this AD may be obtained from
Airbus, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France.
This information may be examined at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the
Office of the Federal Register, 800 North Capitol Street, NW., suite
700, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Tim Backman, Aerospace Engineer,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425)
227-2797; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION: The Direction G[eacute]n[eacute]rale de
l'Aviation Civile (DGAC), which is the airworthiness authority for
France, notified the FAA that an unsafe condition may exist on all
Airbus Model A330-200, A330-300, A340-200, and A340-300 series
airplanes. Each elevator on these airplanes is equipped with two
servocontrols having three operating modes. A selector valve installed
in each servocontrol enables the servocontrol to change between
operating modes; the selector valve's position is transmitted to the
flight control computers by a transducer. The DGAC advises that several
cracks of the transducer body at its attachment lugs have been
detected. The affected transducers were installed at the damping
positions 3CS1 and 3CS2. The cracks resulted in displacement of the
transducer and consequent leakage of the hydraulic fluid into the
affected servocontrol. In two cases the displacement of the transducer
resulted in the elevator becoming inoperative (it dropped into a full
down position), with no electronic centralized aircraft monitor (ECAM)
warning provided to the flightcrew. Without an ECAM warning, this
inoperative condition can be identified only if no elevator surface
movement is detected during a pre-flight elevator check. Loss of
elevator function, if not corrected, could result
[[Page 6550]]
in reduced controllability of the airplane.
Explanation of Relevant Service Information
Airbus has issued Service Bulletins A330-27A3115 and A340-27A4119,
both Revision 02, dated December 30, 2003. The service bulletins
describe procedures for repetitive dye penetrant inspections for cracks
of the attachment lugs of the mode selector valve position transducer
on each elevator servocontrol installed at damping positions 3CS1 and
3CS2. The service bulletins also provide procedures for replacing a
cracked transducer with a new part and torqueing the bolts when the
transducer is reinstalled. The DGAC classified the service bulletins as
mandatory and issued French airworthiness directive F-2003-460, dated
December 24, 2003, to ensure the continued airworthiness of these
airplanes in France.
The Airbus service bulletins refer to Goodrich Actuation Systems
Inspection Service Bulletin SC4800-27-13 as an additional source of
service information for the inspection.
FAA's Conclusions
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. Pursuant to this
bilateral airworthiness agreement, the DGAC has kept the FAA informed
of the situation described above. We have examined the findings of the
DGAC, reviewed all available information, and determined that AD action
is necessary for products of this type design that are certificated for
operation in the United States.
Explanation of Requirements of Rule
Since an unsafe condition has been identified that is likely to
exist or develop on other airplanes of the same type design registered
in the United States, this AD is being issued to ensure proper
functioning of the elevator surfaces, and to detect and correct
cracking of the attachment lugs of the mode selector valve position
transducers on the elevator servocontrols, which could result in
partial loss of elevator function and consequent reduced
controllability of the airplane. This AD requires a revision of the
airplane flight manual (AFM) to include procedures for a pre-flight
elevator check, repetitive inspections for cracks of the attachment
lugs, and corrective action if necessary. The actions are required to
be accomplished in accordance with the Airbus service bulletins
described previously, except as discussed under ``Differences Between
This AD and French Airworthiness Directive.''
This AD also requires that operators report crack findings to
Airbus. Because the cause of the cracking is not known, these required
inspection reports will help determine the extent of the cracking in
the affected fleet. Based on the results of these reports, we may
determine that additional rulemaking is warranted.
Differences Between This AD and the French Airworthiness Directive
The FAA and DGAC airworthiness directives differ in their
compliance times for the first repetitive inspection interval for
airplanes already inspected in accordance with Revision 01 of the
service bulletin. The DGAC allows up to 700 flight cycles or 1,350
total flight cycles (whichever occurs later) for this interval, but
this AD requires that all inspections be done within intervals of 350
flight cycles. French airworthiness directive 2003-371--which was
replaced by the existing French airworthiness directive 2003-460--
required that the inspection be done only one time. Therefore, for
operators that had complied with 2003-371, the additional time
following the initial inspection could provide the necessary time to
schedule the subsequent repetitive inspections. Since we have not
previously required the subject inspection, this AD does not provide
for any extension of the first-repeated inspection interval. However,
we may approve requests to adjust that interval, according to the
provisions of paragraph (g) of this AD, if the request includes data
that prove that the first repetitive interval would provide an
acceptable level of safety.
Also, the DGAC airworthiness directive mandates a change to the
flight crew operating manual (FCOM) to include an additional elevator
pre-flight check. We agree with the need to check for proper
functioning of the elevators before takeoff, but we have determined
that the appropriate location for the procedure is in the AFM, in the
Limitations section. We base this determination on the following
considerations:
1. The FCOM does not require FAA approval; therefore, FCOM changes
cannot be mandated by an AD.
2. It is possible that later changes to the FCOM made by an
operator could result in removal of the necessary pre-flight check.
3. An ECAM warning to the flightcrew would not be provided
following an elevator failure.
4. An elevator failure could result in reduced controllability of
the airplane.
The DGAC airworthiness directive specifies that the FCOM be amended
``for one or both damping servo controls above 1000 FC since new.''
However, this AD requires that the parallel change to the AFM--which
applies across airplane model/series--be incorporated within 30 days.
Interim Action
We consider this AD interim action. The manufacturer is considering
developing a modification that will address the unsafe condition
identified in this AD. Once this modification is developed, approved,
and available, we may consider additional rulemaking.
Determination of Rule's Effective Date
Since a situation exists that requires the immediate adoption of
this regulation, it is found that notice and opportunity for prior
public comment hereon are impracticable, and that good cause exists for
making this amendment effective in less than 30 days.
Comments Invited
Although this action is in the form of a final rule that involves
requirements affecting flight safety and, thus, was not preceded by
notice and an opportunity for public comment, comments are invited on
this rule. Interested persons are invited to comment on this rule by
submitting such written data, views, or arguments as they may desire.
Communications shall identify the Rules Docket number and be submitted
in triplicate to the address specified under the caption ADDRESSES. All
communications received on or before the closing date for comments will
be considered, and this rule may be amended in light of the comments
received. Factual information that supports the commenter's ideas and
suggestions is extremely helpful in evaluating the effectiveness of the
AD action and determining whether additional rulemaking action would be
needed.
Submit comments using the following format:
<bullet<ls-thn-eq> Organize comments issue-by-issue. For example,
discuss a request to change the compliance time and a request to change
the service bulletin reference as two separate issues.
<bullet<ls-thn-eq> For each issue, state what specific change to
the AD is being requested.
<bullet<ls-thn-eq> Include justification (e.g., reasons or data)
for each request.
[[Page 6551]]
Comments are specifically invited on the overall regulatory,
economic, environmental, and energy aspects of the rule that might
suggest a need to modify the rule. All comments submitted will be
available, both before and after the closing date for comments, in the
Rules Docket for examination by interested persons. A report that
summarizes each FAA-public contact concerned with the substance of this
AD will be filed in the Rules Docket.
Commenters wishing the FAA to acknowledge receipt of their comments
submitted in response to this rule must submit a self-addressed,
stamped postcard on which the following statement is made: ``Comments
to Docket Number 2003-NM-223-AD.'' The postcard will be date stamped
and returned to the commenter.
Regulatory Impact
The regulations adopted herein will not have a substantial direct
effect on the States, on the relationship between the national
Government and the States, or on the distribution of power and
responsibilities among the various levels of government. Therefore, it
is determined that this final rule does not have federalism
implications under Executive Order 13132.
The FAA has determined that this regulation is an emergency
regulation that must be issued immediately to correct an unsafe
condition in aircraft, and that it is not a ``significant regulatory
action'' under Executive Order 12866. It has been determined further
that this action involves an emergency regulation under DOT Regulatory
Policies and Procedures (44 FR 11034, February 26, 1979). If it is
determined that this emergency regulation otherwise would be
significant under DOT Regulatory Policies and Procedures, a final
regulatory evaluation will be prepared and placed in the Rules Docket.
A copy of it, if filed, may be obtained from the Rules Docket at the
location provided under the caption Addresses.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration amends part 39 of
the Federal Aviation Regulations (14 CFR part 39) as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. Section 39.13 is amended by adding the following new airworthiness
directive:
2004-03-24 Airbus: Amendment 39-13468. Docket 2003-NM-223-AD.
Applicability: All Model A330-200, A330-300, A340-200, and A340-
300 series airplanes; certificated in any category.
Compliance: Required as indicated, unless accomplished
previously.
To ensure proper functioning of the elevator surfaces, and to
detect and correct cracking of the attachment lugs of the mode
selector valve position transducers on the elevator servocontrols,
which could result in partial loss of elevator function and
consequent reduced controllability of the airplane, accomplish the
following:
AFM Revision
(a) Within 30 days after the effective date of this AD, revise
the Limitations section of the airplane flight manual (AFM) to
include a pre-flight elevator check, by including the following
language. This may be done by inserting a copy of this AD into the
applicable AFM. Thereafter perform the pre-flight check before every
flight in accordance with the procedure.
Prior or During Taxi:
``FLIGHT CONTROLS CHECK
1. AT A CONVENIENT STAGE, PRIOR TO OR DURING TAXI, AND BEFORE
ARMING THE AUTOBRAKE, THE PF SILENTLY APPLIES FULL LONGITUDINAL AND
LATERAL SIDESTICK DEFLECTION. ON THE F/CTL PAGE, THE PNF CHECKS FULL
TRAVEL OF ALL ELEVATORS AND ALL AILERONS, AND THE CORRECT DEFLECTION
AND RETRACTION OF ALL SPOILERS. THE PNF CALLS OUT ``FULL UP,''
``FULL DOWN,'' ``NEUTRAL,'' ``FULL LEFT,'' ``FULL RIGHT,''
``NEUTRAL,'' AS EACH FULL TRAVEL/NEUTRAL POSITION IS REACHED. THE PF
SILENTLY CHECKS THAT THE PNF CALLS ARE IN ACCORDANCE WITH THE
SIDESTICK ORDER.
NOTE: IN ORDER TO REACH FULL TRAVEL, FULL SIDESTICK MUST BE HELD
FOR A SUFFICIENT PERIOD OF TIME.
2. THE PF PRESSES THE PEDAL DISC PUSHBUTTON ON THE NOSEWHEEL
TILLER, AND SILENTLY APPLIES FULL LEFT RUDDER, FULL RIGHT RUDDER,
AND NEUTRAL. THE PNF CALLS OUT ``FULL LEFT,'' ``FULL RIGHT,''
``NEUTRAL,'' AS EACH FULL TRAVEL/NEUTRAL POSITION IS REACHED.
3. THE PNF APPLIES FULL LONGITUDINAL AND LATERAL SIDESTICK
DEFLECTION, AND SILENTLY CHECKS FULL TRAVEL AND CORRECT SENSE OF ALL
ELEVATORS AND ALL AILERONS, AND CORRECT DEFLECTION AND RETRACTION OF
ALL SPOILERS, ON THE ECAM F/CTL PAGE.''
Note 1: Full and complete elevator travel (position commanded)
can be verified on the ECAM Flight Control Page. A determination of
``correct sense'' should include verification that there is complete
and full motion of the sidesticks without binding.
(b) If any pre-flight check required by paragraph (a) of this AD
reveals improper function of the elevator: Before further flight,
perform the inspections required by paragraph (c) of this AD.
Inspections
(c) At the applicable time specified in paragraph (c)(1) or
(c)(2) of this AD, except as required by paragraph (b) of this AD:
Perform a dye penetrant inspection of the attachment lugs of the
mode selector valve position transducers on each elevator
servocontrol installed at damping positions 3CS1 and 3CS2. Do the
inspection in accordance with the Accomplishment Instructions of
Airbus Service Bulletin A330-27A3115 or A340-27A4119, both Revision
02, both dated December 30, 2003, as applicable (hereafter ``the
service bulletin''). An inspection that is done before the effective
date of this AD is acceptable for compliance with the initial
inspection requirement of this paragraph, if the inspection is done
in accordance with any of the following Airbus All Operators Telexes
(AOTs): AOT A330-27A3115 or A340-27A4119, dated September 11, 2003,
or Revision 01 of each AOT dated September 25, 2003; as applicable.
Repeat the inspection thereafter at intervals not to exceed 350
flight cycles.
(1) If the age of the servocontrol from the date of its first
installation on the airplane can be positively determined: Do the
inspection before the accumulation of 1,000 total flight cycles on
the elevator servocontrol, or within 350 flight cycles on the
servocontrol after the effective date of this AD, whichever occurs
later.
(2) If the age of the servocontrol from the date of its first
installation on the airplane cannot be positively determined, do the
inspection within 350 flight cycles on the servocontrol after the
effective date of this AD.
Note 2: The service bulletin refers to Goodrich Actuation
Systems Inspection Service Bulletin SC4800-27-13 as an additional
source of service information for the inspection.
Corrective Actions
(d) If any crack is found during any inspection required by
paragraph (c) of this AD: Before further flight, replace either the
transducer or servocontrol with a new part, in accordance with the
service bulletin.
Reporting Requirement
(e) If any crack is found during any inspection required by
paragraph (c) of this AD: Submit a report in accordance with the
service bulletin at the applicable time(s) specified in paragraphs
(e)(1) and (e)(2) of this AD: Submit reports to Airbus Customer
[[Page 6552]]
Services, Engineering and Technical Support, Attention: J. Laurent,
SEE53, fax +33/(0)5.61.93.44.25, Sita Code TLSBQ7X. Under the
provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et
seq.), the Office of Management and Budget (OMB) has approved the
information collection requirements contained in this AD and has
assigned OMB Control Number 2120-0056.
(1) For an initial inspection done before the effective date of
this AD: Submit the report within 30 days after the effective date
of this AD.
(2) For an inspection done after the effective date of this AD:
Submit the report within 30 days after the inspection.
Parts Installation
(f) As of the effective date of this AD, no person may install
the following part on any airplane: a transducer, or a transducer
fitted on an elevator servocontrol, in the operator's inventory
before September 25, 2003, unless that transducer has been inspected
in accordance with the service bulletin and is crack-free.
Alternative Methods of Compliance
(g) In accordance with 14 CFR 39.19, the Manager, International
Branch, ANM-116, FAA, Transport Airplane Directorate, is authorized
to approve alternative methods of compliance for this AD.
Incorporation by Reference
(h) Unless otherwise specified in this AD, the actions must be
done in accordance with Airbus Service Bulletin A330-27A3115,
Revision 02, including Appendix 01, dated December 30, 2003; or
Airbus Service Bulletin A340-27A4119, Revision 02, including
Appendix 01, dated December 30, 2003; as applicable. This
incorporation by reference was approved by the Director of the
Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part
51. Copies may be obtained from Airbus, 1 Rond Point Maurice
Bellonte, 31707 Blagnac Cedex, France. Copies may be inspected at
the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW.,
Renton, Washington; or at the Office of the Federal Register, 800
North Capitol Street, NW., suite 700, Washington, DC.
Note 3: The subject of this AD is addressed in French
airworthiness directive F-2003-460, dated December 24, 2003.
Effective Date
(i) This amendment becomes effective on February 26, 2004.
Issued in Renton, Washington, on February 2, 2004.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 04-2683 Filed 2-10-04; 8:45 am]
BILLING CODE 4910-13-P
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