[Federal Register Volume 76, Number 212 (Wednesday, November 2, 2011)]
[Proposed Rules]
[Pages 67631-67633]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-28382]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2011-1212; Directorate Identifier 2011-CE-034-AD]
RIN 2120-AA64
Airworthiness Directives; Cirrus Design Corporation Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
[[Page 67632]]
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: We propose to adopt a new airworthiness directive (AD) for
certain Cirrus Design Corporation (Cirrus) Model SR22T airplanes. This
proposed AD was prompted by reports of partial loss of engine power due
to a dislodged rubber gasket/seal being ingested into the turbocharger.
This proposed AD would require inspection and modification of the air
box flange welds and slots and installation of induction system air box
seals as applicable. We are proposing this AD to correct the unsafe
condition on these products.
DATES: We must receive comments on this proposed AD by December 19,
2011.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, 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: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this proposed AD, contact
Cirrus Design Corporation, 4515 Taylor Circle, Duluth, Minnesota 55811-
1548, phone: (218) 788-3000; fax: (218) 788-3525; email:
[email protected]; Internet: http://www.cirrusaircraft.com. You may review copies of the referenced service
information at the FAA, Small Airplane Directorate, 901 Locust, Kansas
City, Missouri 64106. For information on the availability of this
material at the FAA, call (816) 329-4148.
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 (phone: (800) 647-5527) is in the
ADDRESSES section. Comments will be available in the AD docket shortly
after receipt.
FOR FURTHER INFORMATION CONTACT: Michael Downs, Propulsion Engineer,
Chicago ACO, FAA, O'Hare Lake Office Center, 2300 East Devon Ave., Des
Plaines, Illinois 60018; phone: (847) 294-7870; fax: (847) 294-7834;
email: [email protected].
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2011-1212;
Directorate Identifier 2011-CE-034-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 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
We received two reports of partial loss of engine power due to
dislodged rubber gaskets/seals being ingested into one of the two
turbochargers. The gasket/seal is located between the air-box mounting
base and the turbochargers. Once the gasket/seal is ingested into a
turbocharger the engine will experience a partial loss of power as the
turbocharger fails to perform its function. A complete loss of power
could occur if metal debris from the failing turbocharger migrates into
the engine oil system and damages other engine components. Examination
by Cirrus of other Cirrus Model SR22T airplanes showed early evidence
of the gasket/seal starting to dislodge on at least one other airplane.
This condition, if not corrected, could result in engine failure.
Relevant Service Information
We reviewed Cirrus Design Corporation SR22T Service Bulletin SB 2X-
71-17 R1, dated September 30, 2011. The service information describes
procedures for replacement of the air box seals.
FAA's Determination
We are proposing this AD because we evaluated all the relevant
information and determined the unsafe condition described previously is
likely to exist or develop in other products of the same type design.
Proposed AD Requirements
This proposed AD would require inspection and modification of the
air box flange welds and slots and installation of air box seals and
adhesive with materials better suited for the high-temperature
environment encountered in close proximity to the turbocharger.
Costs of Compliance
We estimate that this proposed AD affects 67 airplanes of U.S.
registry.
We estimate the following costs to comply with this proposed AD:
Estimated Costs
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Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Replacement of the induction system 2.5 work-hours x $85 per $139 $351.50 $23,550.50
air box seals and extension of air hour = $212.50.
box flange slots.
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According to the manufacturer, all of the costs of this proposed AD
may be covered under warranty, thereby reducing the cost impact on
affected individuals. We do not control warranty coverage for affected
individuals. As a result, we have included all costs in our cost
estimate.
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:
[[Page 67633]]
``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 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 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),
(3) Will not affect intrastate aviation in Alaska, and
(4) 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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, 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 FAA amends Sec. 39.13 by adding the following new
airworthiness directive (AD):
Cirrus Design Corporation: Docket No. FAA-2011-1212; Directorate
Identifier 2011-CE-034-AD.
(a) Comments Due Date
We must receive comments by December 19, 2011.
(b) Affected ADs
None.
(c) Applicability
This AD applies to the following model and serial number
airplanes, certificated in any category:
(1) Group 1 Airplanes: Cirrus Design Corporation Model SR22T
airplanes, serial numbers 0001 through 0169, except 0004, 0019,
0027, 0047, 0097, 0126, 0127, 0135, 0138, 0139, 0144, 0154, 0155,
0157, 0158, 0159, 0160, 0161, and 0163.
(2) Group 2 Airplanes: Cirrus Design Corporation Model SR22T
airplanes, serial numbers 0004, 0019, 0027, 0047, 0097, 0126, 0127,
0135, 0138, 0139, 0144, 0155, 0157, 0158, 0160, and 0161. These
airplanes had the reinforced silicone fiberglass seals installed at
the factory but the box flange welds and slots may be incorrectly
modified. Therefore, this AD still applies to these airplanes.
(d) Subject
Joint Aircraft System Component (JASC) Code 7160, Engine Air
Intake.
(e) Unsafe Condition
This AD was prompted by reports of partial loss of engine power
due to a dislodged rubber gasket/seal being ingested into the
turbocharger. We are issuing this AD to inspect and modify the air
box flange welds and slots and install induction system air box
seals as applicable.
(f) Compliance
Comply with this AD following Cirrus Design Corporation SR22T
Service Bulletin SB 2X-71-17 R1, dated September 30, 2011, within
the compliance times specified, unless already done.
(g) Actions
(1) Group 1 Airplanes: Within the next 10 hours time-in-service
(TIS) after the effective date of this AD, inspect the air box
flange welds and slots, make modifications as necessary, and replace
the induction air box seals with reinforced silicone fiberglass
seals part number 29486-001.
(2) Group 2 Airplanes: Within the next 10 hours TIS after the
effective date of this AD, inspect the air box flange welds and
slots and, as necessary, make modifications.
Note: Credit will be given for actions required in paragraphs
(g)(1) and (g)(2) of this AD if already done before the effective
date of this AD following Cirrus Design Corporation SR22T Service
Bulletin SB 2X-71-17, dated July 21, 2011.
(h) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Chicago Aircraft Certification Office (ACO),
FAA, has the authority to approve AMOCs for this AD, if requested
using the procedures found in 14 CFR 39.19. In accordance with 14
CFR 39.19, send your request to your principal inspector or local
Flight Standards District Office, as appropriate. If sending
information directly to the manager of the ACO, send it to the
attention of the person identified in the Related Information
section of this AD.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(i) Related Information
(1) For more information about this AD, contact Michael Downs,
Propulsion Engineer, Chicago ACO, FAA, O'Hare Lake Office Center,
2300 East Devon Ave., Des Plaines, Illinois 60018; phone: (847) 294-
7870; fax: (847) 294-7834; email: [email protected].
(2) For service information identified in this AD, contact
Cirrus Design Corporation, 4515 Taylor Circle, Duluth, Minnesota
55811-1548, phone: (218) 788-3000; fax: (218) 788-3525; email:
[email protected]; Internet: http://www.cirrusaircraft.com. You may review copies of the referenced
service information at the FAA, Small Airplane Directorate, 901
Locust, Kansas City, Missouri 64106. For information on the
availability of this material at the FAA, call (816) 329-4148.
Issued in Kansas City, Missouri, on October 27, 2011.
John R. Colomy,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2011-28382 Filed 11-1-11; 8:45 am]
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