[Federal Register: September 9, 2003 (Volume 68, Number 174)]
[Proposed Rules]
[Page 53058-53061]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr09se03-25]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2002-NM-97-AD]
RIN 2120-AA64
Airworthiness Directives; Airbus Model A300 B4-600R and A300 F4-
600R Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: This document proposes the supersedure of an existing
airworthiness directive (AD), applicable to certain Airbus Model A300
B4-600R and A300 F4-600R series airplanes, that currently requires a
one-time visual inspection for damage of the center tank fuel pumps and
fuel pump canisters, and replacement of damaged fuel pumps and fuel
pump canisters with new or serviceable parts. That AD also requires
repetitive visual inspections of the fuel pumps and repetitive eddy
current inspections of the fuel pump canisters, and replacement of
damaged fuel pumps and fuel pump canisters with new or serviceable
parts. This action would mandate modification of the canisters of the
center tank fuel pumps, which would terminate the repetitive
inspections required by the existing AD. The actions specified by the
proposed AD are intended to prevent damage to the fuel pump and fuel
pump canister, which could result in loss of flame trap capability and
could provide a fuel ignition source in the center fuel tank. This
action is intended to address the identified unsafe condition.
DATES: Comments must be received by October 9, 2003.
ADDRESSES: Submit comments in triplicate to the Federal Aviation
Administration (FAA), Transport Airplane Directorate, ANM-114,
Attention: Rules Docket No. 2002-NM-97-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:
9-anm-nprmcomment@faa.gov. Comments sent via fax or the Internet must
contain ``Docket No. 2002-NM-97-AD'' in the subject line and need not
be submitted in triplicate. Comments sent via the Internet as attached
electronic files must be formatted in Microsoft Word 97 or 2000 or
ASCII text.
The service information referenced in the proposed rule may be
obtained from Airbus Industrie, 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.
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:
Comments Invited
Interested persons are invited to participate in the making of the
proposed 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 above. All
communications received on or before the closing date for comments,
specified above, will be considered before taking action on the
proposed rule. The proposals contained in this action may be changed in
light of the comments received.
Submit comments using the following format:
[sbull] 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.
[sbull] For each issue, state what specific change to the proposed
AD is being requested.
[sbull] Include justification (e.g., reasons or data) for each
request.
[[Page 53059]]
Comments are specifically invited on the overall regulatory,
economic, environmental, and energy aspects of the proposed 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 summarizing each FAA-public contact concerned with
the substance of this proposal will be filed in the Rules Docket.
Commenters wishing the FAA to acknowledge receipt of their comments
submitted in response to this action must submit a self-addressed,
stamped postcard on which the following statement is made: ``Comments
to Docket Number 2002-NM-97-AD.'' The postcard will be date stamped and
returned to the commenter.
Availability of NPRMs
Any person may obtain a copy of this NPRM by submitting a request
to the FAA, Transport Airplane Directorate, ANM-114, Attention: Rules
Docket No. 2002-NM-97-AD, 1601 Lind Avenue, SW., Renton, Washington
98055-4056.
Discussion
On December 23, 1999, the FAA issued AD 99-27-07, amendment 39-
11488 (65 FR 213, January 4, 2000), applicable to all Airbus Model A300
B4-600R and A300 F4-600R series airplanes, to require a one-time visual
inspection for damage of the center tank fuel pumps and fuel pump
canisters, and replacement of damaged fuel pumps and fuel pump
canisters with new or serviceable parts. That action also requires
repetitive visual inspections of the fuel pumps and repetitive eddy
current inspections of the fuel pump canisters, and replacement of
damaged fuel pumps and fuel pump canisters with new or serviceable
parts. That action also reduces the applicability to include only those
airplanes that have a trim tank system installed. That action was
prompted by issuance of mandatory continuing airworthiness information
by a foreign civil airworthiness authority. The requirements of that AD
are intended to detect damage to the fuel pump and fuel pump canister,
which could result in loss of flame trap capability and could provide a
fuel ignition source in the center fuel tank.
Actions Since Issuance of Previous Rule
Since the issuance of AD 99-27-07, the Direction
G[eacute]n[eacute]rale de l'Aviation Civile (DGAC), which is the
airworthiness authority for France, has issued French airworthiness
directive 2002-132(B) dated March 20, 2002. The French airworthiness
directive continues to require repetitive inspections for damage of the
center tank fuel pumps and fuel pump canisters and replacement of any
damaged parts, and mandates modification of the canisters of the center
tank fuel pumps, which would terminate the repetitive inspections
required by AD 99-27-07.
Explanation of Relevant Service Information
Airbus has issued Service Bulletin A300-28-6069, Revision 01, dated
May 28, 2002, which describes procedures for modification of the
canisters of the center tank fuel pumps. The modification includes
drilling holes on the doubler for the canister locating pins;
installing the locating pins; preparing the fastener holes for
electrical bonding; and installing new, improved canisters and canister
bonding leads. The service bulletin also describes procedures for an
operational test of the center tank fuel pumps after accomplishment of
the modification.
Airbus also has issued Service Bulletin A300-28-6061, Revision 04,
dated August 1, 2002. The original issue of the service bulletin was
referenced in the existing AD for accomplishment of certain inspections
and corrective action. Airbus also previously issued Revision 01, dated
May 31, 1999; Revision 02, dated October 29, 1999; and Revision 03,
dated September 4, 2001. None of these revisions contain substantial
changes from the original issue.
The DGAC classified these service bulletins as mandatory and issued
French airworthiness directive 2002-132(B), dated March 20, 2002, to
ensure the continued airworthiness of these airplanes in France.
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 us 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 Proposed 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, the proposed AD would supersede AD 99-27-07 to
continue to require a one-time visual inspection for damage of the
center tank fuel pumps and fuel pump canisters, and replacement of
damaged fuel pumps and fuel pump canisters with new or serviceable
parts. The proposed AD also would continue to require repetitive visual
inspections for damage of the fuel pumps and repetitive eddy current
inspections of the fuel pump canisters, and replacement of damaged fuel
pumps and fuel pump canisters with new or serviceable parts. This new
action would mandate modification of the canisters of the center tank
fuel pumps, which would terminate the repetitive inspections required
by the existing AD. The actions would be required to be accomplished in
accordance with the service bulletins described previously.
Changes to 14 CFR Part 39/Effect on the AD
On July 10, 2002, we issued a new version of 14 CFR part 39 (67 FR
47997, July 22, 2002), which governs the FAA's airworthiness directives
system. The regulation now includes material that relates to altered
products, special flight permits, and alternative methods of compliance
(AMOCs). Because we have now included this material in part 39, only
the office authorized to approve AMOCs is identified in each individual
AD.
Change to Labor Rate Estimate
We have reviewed the figures we have used over the past several
years to calculate AD costs to operators. To account for various
inflationary costs in the airline industry, we find it necessary to
increase the labor rate used in these calculations from $60 per work
hour to $65 per work hour. The cost impact information, below, reflects
this increase in the specified hourly labor rate.
Cost Impact
There are approximately 84 airplanes of U.S. registry that would be
affected by this proposed AD.
The inspections that are required by AD 99-27-07 take approximately
2 work hours per airplane to accomplish, at an average labor rate of
$65 per work hour. Based on these figures, the cost impact of the
currently required actions
[[Page 53060]]
is estimated to be $130 per airplane, per inspection cycle.
The inspections required by AD 99-27-07 were applicable to
approximately 67 airplanes. Based on the figures discussed above, the
cost impact of the current requirements of that AD on U.S. operators is
estimated to be $8,710.
In this proposed AD, the inspections are applicable to
approximately 17 additional airplanes. Based on the figures discussed
above, the new costs to U.S. operators that would be imposed by this
proposed AD are estimated to be $2,210.
The new modification proposed in this AD action would take
approximately 11 work hours per airplane to accomplish, at an average
labor rate of $65 per work hour. Required parts would cost
approximately $150 per airplane. Based on these figures, the cost
impact of the proposed modification on U.S. operators is estimated to
be $72,660, or $865 per airplane.
The cost impact figures discussed above are based on assumptions
that no operator has yet accomplished any of the current or proposed
requirements of this AD action, and that no operator would accomplish
those actions in the future if this AD were not adopted. The cost
impact figures discussed in AD rulemaking actions represent only the
time necessary to perform the specific actions actually required by the
AD. These figures typically do not include incidental costs, such as
the time required to gain access and close up, planning time, or time
necessitated by other administrative actions.
Regulatory Impact
The regulations proposed herein 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. Therefore, it
is determined that this proposal would not have federalism implications
under Executive Order 13132.
For the reasons discussed above, I certify that 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);
and (3) if promulgated, 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. A copy of the draft
regulatory evaluation prepared for this action is contained in the
Rules Docket. A copy of it may be obtained by contacting the Rules
Docket at the location provided under the caption ADDRESSES.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Safety.
The Proposed Amendment
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration proposes to amend
part 39 of the Federal Aviation Regulations (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. Section 39.13 is amended by removing amendment 39-11488 (65 FR
213, January 4, 2000), and by adding a new airworthiness directive
(AD), to read as follows:
Airbus: Docket 2002-NM-97-AD. Supersedes AD 99-27-07, amendment 39-
11488.
Applicability: Model A300 B4-600R and A300 F4-600R series
airplanes, certificated in any category, on which Airbus
Modification 4801 (trim tank system) has been accomplished.
Compliance: Required as indicated, unless accomplished
previously.
To prevent damage to the fuel pump and fuel pump canister, which
could result in loss of flame trap capability and could provide a
fuel ignition source in the center fuel tank, accomplish the
following:
Restatement of Requirements of AD 99-27-07
Inspections
(a) Prior to the accumulation of 5,000 total hours, time-in-
service, or within 250 hours, time-in-service after February 8, 2000
(the effective date of AD 99-27-07, amendment 39-11488), whichever
occurs later, perform a detailed inspection for damage of the center
tank fuel pumps and fuel pump canisters, in accordance with Airbus
All Operators Telex (AOT) 28-09, dated November 28, 1998. Repeat the
inspection prior to the accumulation of 12,000 total hours time-in-
service, or within 250 hours time-in-service after accomplishment of
the initial inspection, whichever occurs later. Thereafter, repeat
the inspection at intervals not to exceed 250 hours time-in-service,
until accomplishment of the initial inspection required by paragraph
(b) of this AD.
Note 1: For the purposes of this AD, a detailed inspection is
defined as: ``An intensive visual examination of a specific
structural area, system, installation, or assembly to detect damage,
failure, or irregularity. Available lighting is normally
supplemented with a direct source of good lighting at intensity
deemed appropriate by the inspector. Inspection aids such as mirror,
magnifying lenses, etc., may be used. Surface cleaning and elaborate
access procedures may be required.''
(b) At the applicable time specified in paragraph (b)(1),
(b)(2), or (b)(3) of this AD: Perform a detailed inspection to
detect damage of the center tank fuel pumps and perform an eddy
current inspection to detect damage of the fuel pump canisters, in
accordance with Airbus Alert Service Bulletin A300-28A6061, dated
February 19, 1999; or Airbus Service Bulletin A300-28-6061, Revision
04, dated August 1, 2002. Repeat the inspections thereafter at
intervals not to exceed 1,500 flight cycles, until accomplishment of
paragraph (d) of this AD. Accomplishment of the initial inspections
required by this paragraph constitutes terminating action for the
requirements of paragraph (a) of this AD.
(1) For airplanes that have accumulated 11,000 or more total
flight cycles as of February 8, 2000: Inspect within 300 flight
cycles after February 8, 2000.
(2) For airplanes that have accumulated 8,500 or more total
flight cycles, but fewer than 11,000 total flight cycles, as of
February 8, 2000: Inspect within 750 flight cycles after February 8,
2000.
(3) For airplanes that have accumulated fewer than 8,500 total
flight cycles as of February 8, 2000: Inspect prior to the
accumulation of 7,000 flight cycles, or within 1,500 flight cycles
after February 8, 2000, whichever occurs later.
Corrective Action
(c) If any damage is detected during any inspection required by
this AD, prior to further flight, replace the damaged fuel pump or
fuel pump canister with a new or serviceable part in accordance with
Airbus Alert Service Bulletin A300-28A6061, dated February 19, 1999;
or Airbus Service Bulletin A300-28-6061, Revision 04, dated August
1, 2002.
Inspections/Corrective Action Accomplished Per Previous Issues of
Service Bulletin
(d) Inspections and corrective action accomplished before the
effective date of this AD per Airbus Service Bulletin A300-28-6061,
Revision 01, dated May 31, 1999; Revision 02, dated October 29,
1999; or Revision 03, dated September 4, 2001; are considered
acceptable for compliance with the corresponding actions specified
in this AD.
New Requirements of This AD
Modification
(e) Within 18 months after the effective date of this AD: Modify
the canisters of the center tank fuel pumps (including an
operational test) by doing all the actions per paragraphs 3.A.,
3.B., 3.C., and 3.D. of the Accomplishment Instructions of Airbus
Service Bulletin A300-28-6069, Revision 01, dated May 28, 2002.
Accomplishment of this modification ends the repetitive inspections
required by paragraph (b) of this AD.
(f) Accomplishment of the modification before the effective date
of this AD per
[[Page 53061]]
Airbus Service Bulletin A300-28-6069, dated September 4, 2001, is
acceptable for compliance with the modification required by
paragraph (d) of this AD.
Alternative Methods of Compliance
(g)(1) In accordance with 14 CFR 39.19, the Manager,
International Branch, ANM-116, FAA, is authorized to approve
alternative methods of compliance for this AD.
(2) Alternative methods of compliance, approved previously in
accordance with AD 99-27-07, amendment 39-11488, are approved as
alternative methods of compliance with the applicable actions in
this AD.
Note 2: The subject of this AD is addressed in French
airworthiness directive 2002-132(B), dated March 20, 2002.
Issued in Renton, Washington, on September 3, 2003.
Ali Bahrami,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 03-22891 Filed 9-8-03; 8:45 am]
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