Airworthiness Directives; Quest Aircraft Design, LLC Airplanes
Requires you to inspect the torque of the inertial particle separator (IPS) bolts; correct the torque, if necessary; replace the IPS bolts with new IPS bolts within a certain time; and install safety wire around the new IPS bolts.
[Federal Register Volume 76, Number 232 (Friday, December 2, 2011)]
[Rules and Regulations]
[Pages 75442-75445]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-30881]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2011-1328; Directorate Identifier 2011-CE-037-AD;
Amendment 39-16880; AD 2011-25-04]
RIN 2120-AA64
Airworthiness Directives; Quest Aircraft Design, LLC Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
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[[Page 75443]]
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Quest Aircraft Design, LLC (Quest) Model Kodiak 100 airplanes. This AD
requires you to inspect the torque of the inertial particle separator
(IPS) bolts; correct the torque, if necessary; replace the IPS bolts
with new IPS bolts within a certain time; and install safety wire
around the new IPS bolts. This AD was prompted by five instances where
a loose IPS bolt was found on the right-hand side of the engine bypass
door attachment. This condition, if not corrected, could lead to an
inoperable bypass door, which could result in engine inlet icing with
consequent loss of engine power and forced landing. We are issuing this
AD to correct the unsafe condition on these products.
DATES: This AD is effective December 19, 2011.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of December 19,
2011.
We must receive comments on this AD January 17, 2012.
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: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
For service information identified in this AD, contact Quest
Aircraft Design, LLC, 1200 Turbine Drive, Sandpoint, Idaho 83864;
phone: (208) 263-1111; fax: (208) 263-1511; email: http://questaircraft.com/quest/contact-quest/customer-service/; Internet:
http://questaircraft.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 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: Tung Tran, Aerospace Engineer, Seattle
Aircraft Certification Office, FAA, 1601 Lind Avenue SW, Renton,
Washington 98057; phone: (425) 917-6505; fax: (425) 917-6590; email:
[email protected].
SUPPLEMENTARY INFORMATION:
Discussion
We received reports of five instances where a loose IPS bolt was
found on the right-hand side of the engine bypass door attachment on
Quest Model Kodiak 100 airplanes. This area attaches the bypass door to
the actuating shaft. In one of the five instances, the bolt was lost.
Loose or missing IPS bolts could lead to an inoperable bypass door,
which could result in engine inlet icing with consequent loss of engine
power and forced landing.
Relevant Service Information
We reviewed Quest Aircraft Company Mandatory Service Bulletin
Number SB11-17, Revision: 00, dated November 1, 2011; and Quest
Aircraft Company Field Service Instruction No. FSI-028, Revision 02,
(undated). The service information describes procedures for inspecting
and re-torquing the first IPS bolt, replacing both IPS bolts with new
bolts, and installing safety wire around the new bolts.
FAA's Determination
We are issuing 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.
AD Requirements
This AD requires accomplishing the actions specified in the service
information described previously.
FAA's Justification and Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD. The FAA has found that the risk to the flying public justifies
waiving notice and comment prior to adoption of this rule because this
condition, if not corrected, could result in loss of engine power that
may lead to a forced landing. Therefore, we find that notice and
opportunity for prior public comment are impracticable and that good
cause exists for making this amendment effective in less than 30 days.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety and was not preceded by notice and an opportunity for public
comment. However, we invite you to send any written data, views, or
arguments about this AD. Send your comments to an address listed under
the ADDRESSES section. Include the docket number FAA-2011-1328 and
Directorate Identifier 2011-CE-037-AD at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this AD. We will
consider all comments received by the closing date and may amend this
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 AD.
Costs of Compliance
We estimate that this AD affects 38 airplanes of U.S. registry.
We estimate the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Inspect and re-torque the AN4-4A bolt. 0.5 work-hour x $85 per (*) $42.50 $1,615
hour = $42.50.
[[Page 75444]]
Replace the IPS bolts, part numbers (P/ 1 work-hour x $85 per 86 $171 $6,498
N) AN4-4A and AN4-5A, with new IPS hour = $85.
bolts, P/N AN4H4A and AN4H5A,
respectively. Install safety wire
around the new bolts.
----------------------------------------------------------------------------------------------------------------
* Not Applicable.
According to the manufacturer, some of the costs of this 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: ``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
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),
(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.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA 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 (AD):
2011-25-04 Quest Aircraft Design, LLC: Amendment 39-16880; Docket
No. FAA-2011-1328; Directorate Identifier 2011-CE-037-AD.
(a) Effective Date
This AD is effective December 19, 2011.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Quest Aircraft Design, LLC Model Kodiak 100
airplanes, serial numbers 100-0001 through 100-0056, certificated in
any category.
(d) Subject
Joint Aircraft System Component (JASC)/Air Transport Association
(ATA) of America Code 7160, Engine Air Intake System.
(e) Unsafe Condition
This AD was prompted by reports of five instances where a loose
IPS bolt was found on the right-hand side of the engine bypass door
attachment. This condition, if not corrected, could lead to an
inoperable bypass door, which could result in engine inlet icing
with consequent loss of engine power and forced landing. We are
issuing this AD to correct the unsafe condition on these products.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Torque of the IPS AN4-4A Bolt
Before further flight on or after December 19, 2011 (the
effective date of this AD), inspect the torque of the IPS bolt, part
number (P/N) AN4-4A, and re-torque, if necessary, following Quest
Aircraft Company Field Service Instruction No. FSI-028, Revision 02,
(undated) as specified in Mandatory Service Bulletin No. SB11-17,
Revision: 00, dated November 1, 2011.
(h) Replace the IPS AN4-4A and AN4-5A Bolts
Within 15 hours time-in-service (TIS) after December 19, 2011
(the effective date of this AD), replace the IPS bolts, P/N AN4-4A
and P/N AN4-5A, with new IPS bolts, P/N AN4H4A and P/N AN4H5A,
respectively. After installing the new bolts, install safety wire
around the new bolts. Do the actions following Quest Aircraft
Company Field Service Instruction No. FSI-028, Revision 02,
(undated) as specified in Mandatory Service Bulletin No. SB11-17,
Revision: 00, dated November 1, 2011.
(i) Prohibition of Installation of IPS AN4-4A and AN4-5A Bolts
As of December 19, 2011 (the effective date of this AD), do not
install any IPS bolts, P/N AN4-4A or P/N AN4-5A.
(j) Special Flight Permit
Special flight permits are permitted with the following
limitation: Flight into known icing is prohibited.
(k) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Seattle 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.
(l) Related Information
For more information about this AD, contact Tung Tran, Aerospace
Engineer, Seattle ACO, FAA, 1601 Lind Avenue SW., Renton, Washington
98057; phone: (425) 917-6505; fax: (425) 917-6590; email:
[email protected].
[[Page 75445]]
(m) Material Incorporated by Reference
(1) You must use the following service information to do the
actions required by this AD, unless the AD specifies otherwise. The
Director of the Federal Register approved the incorporation by
reference (IBR) under 5 U.S.C. 552(a) and 1 CFR part 51 on December
19, 2011.
(i) Quest Aircraft Company Mandatory Service Bulletin No. SB11-
17, Revision: 00, dated November 1, 2011; and
(ii) Quest Aircraft Company Field Service Instruction No. FSI-
028, Revision 02, (undated).
(2) For service information identified in this AD, contact Quest
Aircraft Design, LLC, 1200 Turbine Drive, Sandpoint, Idaho 83864;
phone: (208) 263-1111; fax: (208) 263-1511; email: http://questaircraft.com/quest/contact-quest/customer-service/; Internet:
http://questaircraft.com/.
(3) You may review copies of the 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.
(4) You may also review copies of the service information that
is incorporated by reference at the National Archives and Records
Administration (NARA). For information on the availability of this
material at an NARA facility, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
Issued in Kansas City, Missouri, on November 25, 2011.
John Colomy,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2011-30881 Filed 12-1-11; 8:45 am]
BILLING CODE 4910-13-P
Sources. Section 1 is written by AircraftDirectives from the record below and is a reading aid only. Section 2 is the United States Government's own text, reproduced without edit.
Federal Register: https://www.federalregister.gov/documents/2011/12/02/2011-30881/airworthiness-directives-quest-aircraft-design-llc-airplanes
Official PDF: https://www.govinfo.gov/content/pkg/FR-2011-12-02/pdf/2011-30881.pdf
Packet generated 2026-08-18 08:50 UTC.
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Section 1 is a reading aid, not the rule. It is our own plain-language condensation, written to help a reader find the relevant directive quickly. It is NOT a substitute for the regulation, it may omit conditions, exceptions, compliance times, alternative methods of compliance (AMOCs) and applicability limits, and it has no legal force whatsoever. Only the official text governs. Where Section 1 and Section 2 differ in any respect, Section 2 - and the official source it was retrieved from - controls absolutely.
Responsibility remains with the owner/operator. Under 14 CFR §91.403 and §91.417 the owner or operator is responsible for maintaining airworthiness and for required records; under §39.7 no person may operate a product to which an airworthiness directive applies except in accordance with that directive. Determining applicability to a specific serial number and configuration, and performing or supervising any required action, is the responsibility of the owner/operator and appropriately certificated personnel.
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