[Federal Register: July 27, 2004 (Volume 69, Number 143)]
[Rules and Regulations]
[Page 44587-44589]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr27jy04-5]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2002-NM-319-AD; Amendment 39-13744; AD 2004-15-10]
RIN 2120-AA64
Airworthiness Directives; Saab Model SAAB SF340A Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment adopts a new airworthiness directive (AD),
[[Page 44588]]
applicable to certain Saab Model SAAB SF340A series airplanes, that
requires replacing certain power wires with a modification harness; and
testing the new harness installation. These actions are necessary to
prevent a momentary loss of data on the left-hand electronic flight
instrumentation system (LH EFIS) screens, which could lead to the
pilot's loss of situational awareness during initial climb or approach/
landing, and possibly result in reduced control of the airplane. This
action is intended to address the identified unsafe condition.
DATES: Effective August 31, 2004.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of August 31, 2004.
ADDRESSES: The service information referenced in this AD may be
obtained from Saab Aircraft AB, SAAB Aircraft Product Support, S-
581.88, Link[ouml]ping, Sweden. This information may be examined at the
Federal Aviation Administration (FAA), Transport Airplane Directorate,
Rules Docket, 1601 Lind Avenue, SW., Renton, Washington; or at the
National Archives and Records Administration (NARA). For information on
the availability of this material at NARA, call (202) 741-6030, or go
to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html
.
FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425)
227-2125; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) to include an airworthiness
directive (AD) that is applicable to certain Saab Model SAAB SF340A
series airplanes was published in the Federal Register on April 1, 2004
(69 FR 17072). That action proposed to require replacing certain power
wires with a modification harness; and testing the new harness
installation.
Comments
Interested persons have been afforded an opportunity to participate
in the making of this amendment. No comments were submitted in response
to the proposal or the FAA's determination of the cost to the public.
Conclusion
The FAA has determined that air safety and the public interest
require the adoption of the rule as proposed.
Cost Impact
The FAA estimates that 12 airplanes of U.S. registry will be
affected by this AD, that it will take approximately 30 work hours per
airplane to accomplish the required actions, and that the average labor
rate is $65 per work hour. Required parts will cost approximately
$5,500 per airplane. Based on these figures, the cost impact of the AD
on U.S. operators is estimated to be $89,400, or $7,450 per airplane.
The cost impact figure discussed above is based on assumptions that
no operator has yet accomplished any of the 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 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.
For the reasons discussed above, I certify that this action (1) is
not a ``significant regulatory action'' under Executive Order 12866;
(2) is not a ``significant rule'' under 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. A final evaluation has been prepared for this action
and it is contained in the Rules Docket. A copy of it 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:
2004-15-10 Saab Aircraft AB: Amendment 39-13744. Docket 2002-NM-319-
AD.
Applicability: Model SAAB SF340A series airplanes, manufacturer
serial number -004 through -028 inclusive; certificated in any
category.
Compliance: Required as indicated, unless accomplished
previously.
To prevent a momentary loss of data on the left-hand electronic
flight instrumentation system (LH EFIS) screens, which could lead to
the pilot's loss of situational awareness during initial climb or
approach/landing, and possibly result in reduced control of the
airplane, accomplish the following:
Replacement and Test
(a) Within 12 months after the effective date of this AD,
replace certain power wires with a modification harness, and test
the harness installation; by doing all of the actions in, and in
accordance with, the Accomplishment Instructions of Saab Service
Bulletin 340-29-021, Revision 02, dated October 2, 2002.
Alternative Methods of Compliance
(b) In accordance with 14 CFR 39.19, the Manager, International
Branch, ANM-116, Transport Airplane Directorate, FAA, is authorized
to approve alternative methods of compliance for this AD.
Incorporation by Reference
(c) The actions shall be done in accordance with Saab Service
Bulletin 340-29-021, Revision 02, dated October 2, 2002. 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 Saab Aircraft AB, SAAB Aircraft
Product Support, S-581.88, Link[ouml]ping, Sweden. Copies may be
inspected at the FAA, Transport Airplane Directorate, 1601 Lind
Avenue, SW., Renton, Washington; or at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, call (202) 741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html
.
Note 1: The subject of this AD is addressed in Swedish
airworthiness directive 1-179, dated October 2, 2002.
[[Page 44589]]
Effective Date
(d) This amendment becomes effective on August 31, 2004.
Issued in Renton, Washington, on July 9, 2004.
Kevin M. Mullin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 04-16678 Filed 7-26-04; 8:45 am]
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