[Federal Register Volume 74, Number 69 (Monday, April 13, 2009)]
[Rules and Regulations]
[Pages 16755-16758]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E9-8264]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-1207; Directorate Identifier 2007-NE-47-AD;
Amendment 39-15880; AD 2009-08-07]
RIN 2120-AA64
Airworthiness Directives; Honeywell International Inc. ALF502L-2
and ALF502L-2C Turbofan Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
Honeywell International Inc. ALF502L-2 and ALF502L-2C turbofan engines
with certain high-pressure compressor (HPC) first stage discs
installed. This AD requires performing a dimensional inspection to
determine if excessive disc balance material was removed and a magnetic
particle inspection if the disc
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passes the dimensional inspection. This AD results from reports of
discs found with excessive material removed from the balancing
locations of the disc. We are issuing this AD to prevent the discs from
fracturing before reaching the currently published life limit. A disc
fracture could result in an uncontained failure of the disc and damage
to the airplane.
DATES: This AD becomes effective May 18, 2009.
ADDRESSES: You can get the service information identified in this AD
from Honeywell International Inc. 111 S. 34th Street, Phoenix, AZ
85034-2802, U.S.A.; telephone (800) 601-3099, Web site http://portal.honeywell.com/wps/portal/aero.
The Docket Operations office is located at Docket Management
Facility, U.S. Department of Transportation, 1200 New Jersey Avenue,
SE., West Building Ground Floor, Room W12-140, Washington, DC 20590-
0001.
FOR FURTHER INFORMATION CONTACT: Robert Baitoo, Aerospace Engineer, Los
Angeles Aircraft Certification Office, FAA, Transport Airplane
Directorate, 3960 Paramount Blvd., Lakewood, CA 90712-4137; e-mail:
[email protected]; telephone (562) 627-5245; fax (562) 627-5210.
SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39
with a proposed AD. The proposed AD applies to Honeywell International
Inc. ALF502L-2 and ALF502L-2C turbofan engines with certain HPC first
stage discs installed. We published the proposed AD in the Federal
Register on November 28, 2008 (73 FR 72370). That action proposed to
require performing a dimensional inspection to determine if excessive
disc balance material was removed and a magnetic particle inspection if
the disc passes the dimensional inspection.
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 AD, the regulatory evaluation,
any comments received, and other information. The street address for
the Docket Operations office (telephone (800) 647-5527) is provided in
the ADDRESSES section. Comments will be available in the AD docket
shortly after receipt.
Comments
We provided the public the opportunity to participate in the
development of this AD. We received no comments on the proposal or on
the determination of the cost to the public.
Conclusion
We have carefully reviewed the available data and determined that
air safety and the public interest require adopting the AD as proposed.
Costs of Compliance
We estimate that this AD will affect 148 engines installed on
airplanes of U.S. registry. We also estimate that it will take about 3
work-hours per engine to perform the actions, and that the average
labor rate is $80 per work-hour. Required parts will cost about $21,000
per engine. Based on these figures, we estimate the total cost of the
AD to U.S. operators to be $3,143,520.
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 AD will not have federalism
implications under Executive Order 13132. This AD 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.
For the reasons discussed above, I certify that this AD:
(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.
We prepared a summary of the costs to comply with this AD and
placed it in the AD Docket. You may get a copy of this summary at the
address listed under ADDRESSES.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the Federal Aviation Administration amends 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. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive:
2009-08-07 Honeywell International Inc. (Formerly AlliedSignal and
Lycoming): Amendment 39-15880. Docket No. FAA-2008-1207; Directorate
Identifier 2007-NE-47-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective May 18,
2009.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Honeywell International Inc. ALF502L-2
and ALF502L-2C turbofan engines with high pressure compressor (HPC)
first stage discs, part numbers (P/Ns) 2-101-331-03, 2-101-331-04,
and 2-101-331-10, installed. These engines are installed on, but not
limited to, Bombardier CL-600-1A11 airplanes.
Unsafe Condition
(d) This AD results from reports of discs found with excessive
material removed from the balancing locations of the disc. We are
issuing this AD to prevent the discs from fracturing before reaching
the currently published life limit. A disc fracture could result in
an uncontained failure of the disc and damage to the airplane.
Compliance
(e) You are responsible for having the actions required by this
AD performed at the next shop visit, but not later than 2,500
cycles-in-service after the effective date of this AD, unless the
actions have already been done.
Visual Inspection
(f) For discs with 5,000 or more cycles-since-new on the
effective date of this AD, perform a dimensional inspection of the
HPC first stage disc to determine if excessive disc
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balance material was removed. See the following Figure 1 for limits.
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(g) Replace the disc if excessive disc balance material was
removed. See limits in Figure 1 of this AD.
(h) If the removed balance material condition is acceptable,
perform a magnetic particle inspection of the disc rim and slots for
cracks using a 3 to 7 power magnification glass. The Engine Overhaul
Manual, 72-34-11, Inspection/Check, contains information on the
magnetic particle inspection procedure. Contact Honeywell
International Inc., 111 S. 34th Street, Phoenix, AZ 85034-2802,
U.S.A.; telephone (800) 601-3099, Web site http://portal.honeywell.com/wps/portal/aero, for a copy of this service
information.
(i) Replace the disc if you find any cracks.
Alternative Methods of Compliance
(j) The Manager, Los Angeles Aircraft Certification Office, has
the authority to approve alternative methods of compliance for this
AD if requested using the procedures found in 14 CFR 39.19.
Related Information
(k) Honeywell Alert Service Bulletin ALF/LF A72-1102, dated
April 24, 2007, contains information that pertains to the subject of
this AD. Contact Honeywell International Inc., 111 S. 34th Street,
Phoenix, AZ 85034-2802, U.S.A.; telephone (800) 601-3099, Web site
http://portal.honeywell.com/wps/portal/aero, for a copy of this
service information.
(l) Contact Robert Baitoo, Aerospace Engineer, Los Angeles
Aircraft Certification Office, FAA, Transport Airplane Directorate,
3960 Paramount Blvd., Lakewood, CA 90712-4137; e-mail:
[email protected]; telephone (562) 627-5245; fax (562) 627-5210,
for more information about this AD.
Material Incorporated by Reference
(m) None.
Issued in Burlington, Massachusetts, on April 6, 2009.
Peter A. White,
Assistant Manager, Engine and Propeller Directorate, Aircraft
Certification Service.
[FR Doc. E9-8264 Filed 4-10-09; 8:45 am]
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