83 FR 9820 - Airworthiness Directives; Quest Aircraft Design, LLC Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 46 (March 8, 2018)

Page Range		9820-9822
FR Document		2018-04650

We propose to adopt a new airworthiness directive (AD) for all Quest Aircraft Design, LLC Model KODIAK 100 airplanes. This proposed AD was prompted by reports of cracks found in certain nose landing gear forks. This proposed AD would require a one-time inspection to determine if the affected nose landing gear fork is installed, repetitive inspections of the affected nose landing gear fork for cracks, repetitive inspections of the shimmy damper bracket for looseness if the affected nose landing gear fork is installed, and rework/replacement of parts as necessary. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 46 (Thursday, March 8, 2018)

[Federal Register Volume 83, Number 46 (Thursday, March 8, 2018)]
[Proposed Rules]
[Pages 9820-9822]
From the Federal Register Online [www.thefederalregister.org]
[FR Doc No: 2018-04650]

[[Page 9820]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0180; Product Identifier 2017-CE-043-AD]
RIN 2120-AA64

Airworthiness Directives; Quest Aircraft Design, LLC Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for all
Quest Aircraft Design, LLC Model KODIAK 100 airplanes. This proposed AD
was prompted by reports of cracks found in certain nose landing gear
forks. This proposed AD would require a one-time inspection to
determine if the affected nose landing gear fork is installed,
repetitive inspections of the affected nose landing gear fork for
cracks, repetitive inspections of the shimmy damper bracket for
looseness if the affected nose landing gear fork is installed, and
rework/replacement of parts as necessary. We are proposing this AD to
address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by April 23, 2018.

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 NPRM, contact Quest
Aircraft Company LLC, 1200 Turbine Drive, Sandpoint, Idaho 83864;
phone: (208) 263-1111 or 1 (866) 263-1112; email:
customerservice@questaircraft.com; internet: http://customercare.questaircraft.com/. You may view this service information
at the FAA, Policy and Innovation Division, 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 by searching for and locating Docket No. FAA-2018-
0180; or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
this NPRM, the regulatory evaluation, any comments received, and other
information. The street address for Docket Operations (phone: 800-647-
5527) is in the ADDRESSES section. Comments will be available in the AD
docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Wade Sullivan, Aerospace Engineer,
Seattle ACO Branch, FAA, 1601 Lind Avenue SW, Renton, WA 98057; phone:
425-917-6430; fax: 425-917-6590; email: wade.sullivan@faa.gov.

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-2018-0180;
Product Identifier 2017-CE-043-AD'' at the beginning of your comments.
We specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this NPRM. We will consider all
comments received by the closing date and may amend this NPRM 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 NPRM.

Discussion

We received reports from the manufacturer of fatigue cracks on the
nose landing gear (NLG) fork on Quest Aircraft Design, LLC Model KODIAK
100 airplanes. In one report, the NLG fork failed during landing. On
unimproved surfaces, the NLG shimmy damper system can wear and loosen,
reducing the resistance of the nose gear to shimmy. Shimmying puts side
loads on the NLG fork that it was not designed for, which could cause
fatigue cracks. This condition, if not corrected, could result in
separation of the fork with consequent reduced control on landing. If
the fork separates on an unimproved surface, the risk of the NLG
digging in and the airplane overturning on the ground increases.

Related Service Information Under 1 CFR Part 51

We reviewed Quest Aircraft Field Service Instruction FSI-147,
Revision 00 (not dated), which provides instructions for inspection
and, if necessary, replacement of the NLG fork. We reviewed pages
32_110 and 32_111, section 3252, Shimmy Damper, found in Chapter 32,
Landing Gear, of Quest Aircraft Company Kodiak 100 Maintenance Manual,
Revision No. 21, dated February 15, 2017, which describes procedures
for inspecting the shimmy damper system. We also reviewed Quest
Aircraft Field Service Instruction FSI-146, Revision 00 (not dated),
which provides instructions for modifying the shimmy damper attach
bracket. This service information is reasonably available because the
interested parties have access to it through their normal course of
business or by the means identified in the ADDRESSES section.

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 accomplishing the actions specified
in the service information described previously.

Costs of Compliance

We estimate that this proposed AD affects 116 airplanes of U.S.
registry.
We estimate the following costs to comply with this proposed AD:

[[Page 9821]]

Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Determine if type A or type B 1 work-hour x $85 Not applicable.............. $85 $9,860
NLG fork is installed. per hour = $85.
----------------------------------------------------------------------------------------------------------------

We estimate the following costs to do any necessary additional
inspections, replacements, and modifications that would be required
based on the results of the proposed NLG fork type determination. We
have no way of determining the number of airplanes that might need
these inspections, replacements, and modifications:

On-Condition Costs
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product
---------------------------------------------------------------------------------------------------------------
Inspection of the NLG fork for 4 work-hours x $85 per Not applicable................... $340
cracks. hour = $340.
Replacement of the NLG fork........ 4 work-hours x $85 per $7,002.36........................ 7,342.36
hour = $340.
Inspection of the shimmy damper 1 work-hour x $85 per Not applicable................... 85
bracket. hour = $85.
Rework of the shimmy damper bracket 4 work-hours x $85 per $127.33.......................... 467.33
hour = $340.
----------------------------------------------------------------------------------------------------------------

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.
This AD is issued in accordance with authority delegated by the
Executive Director, Aircraft Certification Service, as authorized by
FAA Order 8000.51C. In accordance with that order, issuance of ADs is
normally a function of the Compliance and Airworthiness Division, but
during this transition period, the Executive Director has delegated the
authority to issue ADs applicable to small airplanes, gliders,
balloons, airships, domestic business jet transport airplanes, and
associated appliances to the Director of the Policy and Innovation
Division.

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

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):

Quest Aircraft Design, LLC: Docket No. FAA-2018-0180; Product
Identifier 2017-CE-043-AD.

(a) Comments Due Date

We must receive comments by April 23, 2018.

(b) Affected ADs

None.

This AD applies to Quest Aircraft Design, LLC Model KODIAK 100
airplanes; all serial numbers, certificated in any category.

(d) Subject

Joint Aircraft System Component (JASC)/Air Transport Association
(ATA) of America Code 32, Landing Gear.

(e) Unsafe Condition

This AD was prompted by reports from the manufacturer of fatigue
cracks on the nose landing gear (NLG) fork. We are issuing this AD
to detect and prevent fatigue cracking of the NLG fork. The unsafe
condition, if not corrected, could result in separation of the fork
with consequent reduced control on landing. If the fork separates on
an unimproved surface, the risk of the NLG digging in and the
airplane overturning on the ground increases.

(f) Compliance

Comply with this AD within the compliance times specified,
unless already done.

(g) Inspection for Type of NLG Fork

Within 25 hours time-in-service (TIS) after the effective date
of this AD, inspect the airplane to determine if a NLG fork part
number (P/N) 100-410-7001 (type A) or a NLG fork P/N 100-410-7013
(type B) is installed. If you determine that a NLG P/N 100-410-7013
(type B) is installed during the inspection, no further action is
required by this AD. If a review of the maintenance records can
positively identify the P/N NLG fork that is installed, you may use
a maintenance records review in lieu of

[[Page 9822]]

inspecting the airplane to determine if a NLG fork P/N 100-410-7001
(type A) or a NLG fork P/N 100-410-7013 (type B) is installed.

(h) Inspection of the NLG Fork for Cracks

(1) If you determine that a NLG fork P/N 100-410-7001 (type A)
is installed during the inspection required in paragraph (g) of this
AD, within 25 hours TIS after the effective date of this AD and
repetitively thereafter at intervals not to exceed 100 hours TIS, do
a fluorescent penetrant, dye penetrant, or open-hole eddy current
inspection of the NLG fork for cracks following section 5.
Instructions in Quest Aircraft Field Service Instruction FSI-147,
Revision 00 (not dated).
(2) If you find any cracks of the NLG fork during any inspection
required in paragraph (h)(1) of this AD, before further flight,
replace the NLG fork with a NLG fork P/N 100-410-7013 (type B)
following section 5. Instructions in Quest Aircraft Field Service
Instruction FSI-147, Revision 00 (not dated). Replacement of the NLG
fork with a NLG fork P/N 100-410-7013 (type B) terminates the
repetitive inspections required in paragraphs (h)(1) and (i)(1) of
this AD.

(i) Inspection of the Shimmy Damper Bracket

(1) If you have not replaced a NLG fork P/N 100-410-7001 (type
A) per the initial inspection and replacement requirements in
paragraph (h) of this AD, then within 25 hours TIS after the
effective date of this AD and repetitively thereafter at intervals
not to exceed 100 hours TIS (until the NLG fork is replaced with a
P/N 100-410-7013 (type B fork)), inspect the shimmy damper bracket
for looseness following pages 32_110 and 32_111, section 3252,
Shimmy Damper, found in Chapter 32, Landing Gear, of Quest Aircraft
Company Kodiak 100 Maintenance Manual, Revision No. 21, dated
February 15, 2017.
(2) If a loose shimmy damper bracket is found during any
inspection required in paragraph (i)(1) of this AD, rework the
shimmy damper bracket with interference-fit bolts following Quest
Aircraft Field Service Instruction FSI-146, Revision 00 (not dated).
Reworking the shimmy damper bracket with the interference-fit bolts
terminates the repetitive inspections required in paragraph (i)(1)
of this AD.
(3) If any other damaged (loose, leaking, corrosion, worn, etc.)
components are found in the shimmy damper system during any
inspection required in paragraph (i)(1) of this AD, before further
flight, replace damaged components as necessary following pages
32_110 and 32_111, section 3252, Shimmy Damper, found in Chapter 32,
Landing Gear, of Quest Aircraft Company Kodiak 100 Maintenance
Manual, Revision No. 21, dated February 15, 2017.

(j) Optional Terminating Action

In lieu of the NLG fork and shimmy damper bracket inspections
required in paragraphs (h)(1) and (i)(1) of this AD, you may replace
the NLG fork P/N 100-410-7001 (type A) with a NLG fork P/N 100-410-
7013 (type B) following section 5. Instructions in Quest Aircraft
Field Service Instruction FSI-147, Revision 00 (not dated). This
replacement terminates the inspection requirements of this AD and no
further actions are required.

(k) Restriction of NLG Fork P/N 100-410-7001 (Type A) Installation

Once a NLG fork P/N 100-410-7013 (type B) is installed on an
airplane, do not install a NLG fork P/N 100-410-7001 (type A). If a
NLG fork P/N 100-410-7013 (type B) is removed from the airplane for
any reason (for example, to install floats), you must reinstall a
NLG fork P/N 100-410-7013 (type B) when operating with wheels.

(l) Alternative Methods of Compliance (AMOCs)

(1) The Manager, Seattle ACO Branch, 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 certification office, send it to the attention of the
person identified in paragraph (m)(1) of this AD. Information may
also be emailed to: 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov.
(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.

(m) Related Information

(1) For more information about this AD, contact Wade Sullivan,
Aerospace Engineer, Seattle ACO Branch, FAA, 1601 Lind Avenue SW,
Renton, WA 98057; phone: 425-917-6430; fax: 425-917-6590; email:
wade.sullivan@faa.gov.
(2) For service information identified in this AD, contact Quest
Aircraft Company LLC, 1200 Turbine Drive, Sandpoint, Idaho 83864;
phone: (208) 263-1111 or 1 (866) 263-1112; email:
customerservice@questaircraft.com; internet: http://customercare.questaircraft.com/. You may view this service
information at the FAA, Policy and Innovation Division, 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 March 1, 2018.
Pat Mullen,
Acting Deputy Director, Policy & Innovation Division, Aircraft
Certification Service.
[FR Doc. 2018-04650 Filed 3-7-18; 8:45 am]
BILLING CODE 4910-13-P

9820 Federal Register / Vol. 83, No. 46 / Thursday, March 8, 2018 / Proposed Rules

DEPARTMENT OF TRANSPORTATION internet: http:// 100 airplanes. In one report, the NLG
customercare.questaircraft.com/. You fork failed during landing. On
Federal Aviation Administration may view this service information at the unimproved surfaces, the NLG shimmy
FAA, Policy and Innovation Division, damper system can wear and loosen,
14 CFR Part 39 901 Locust, Kansas City, Missouri reducing the resistance of the nose gear
64106. For information on the to shimmy. Shimmying puts side loads
[Docket No. FAA–2018–0180; Product
Identifier 2017–CE–043–AD] availability of this material at the FAA, on the NLG fork that it was not designed
call (816) 329–4148. for, which could cause fatigue cracks.
RIN 2120–AA64 This condition, if not corrected, could
Examining the AD Docket
result in separation of the fork with
Airworthiness Directives; Quest You may examine the AD docket on consequent reduced control on landing.
Aircraft Design, LLC Airplanes the internet at http:// If the fork separates on an unimproved
www.regulations.gov by searching for surface, the risk of the NLG digging in
AGENCY: Federal Aviation
and locating Docket No. FAA–2018– and the airplane overturning on the
Administration (FAA), DOT.
0180; or in person at Docket Operations ground increases.
ACTION: Notice of proposed rulemaking between 9 a.m. and 5 p.m., Monday
(NPRM). through Friday, except Federal holidays. Related Service Information Under 1
The AD docket contains this NPRM, the CFR Part 51
SUMMARY: We propose to adopt a new
regulatory evaluation, any comments We reviewed Quest Aircraft Field
airworthiness directive (AD) for all
received, and other information. The Service Instruction FSI–147, Revision
Quest Aircraft Design, LLC Model
street address for Docket Operations 00 (not dated), which provides
KODIAK 100 airplanes. This proposed
(phone: 800–647–5527) is in the instructions for inspection and, if
AD was prompted by reports of cracks
ADDRESSES section. Comments will be necessary, replacement of the NLG fork.
found in certain nose landing gear forks.
This proposed AD would require a one- available in the AD docket shortly after We reviewed pages 32_110 and 32_111,
time inspection to determine if the receipt. section 3252, Shimmy Damper, found in
affected nose landing gear fork is FOR FURTHER INFORMATION CONTACT: Chapter 32, Landing Gear, of Quest
installed, repetitive inspections of the Wade Sullivan, Aerospace Engineer, Aircraft Company Kodiak 100
affected nose landing gear fork for Seattle ACO Branch, FAA, 1601 Lind Maintenance Manual, Revision No. 21,
cracks, repetitive inspections of the Avenue SW, Renton, WA 98057; phone: dated February 15, 2017, which
shimmy damper bracket for looseness if 425–917–6430; fax: 425–917–6590; describes procedures for inspecting the
the affected nose landing gear fork is email: wade.sullivan@faa.gov. shimmy damper system. We also
installed, and rework/replacement of SUPPLEMENTARY INFORMATION: reviewed Quest Aircraft Field Service
parts as necessary. We are proposing Instruction FSI–146, Revision 00 (not
Comments Invited dated), which provides instructions for
this AD to address the unsafe condition
on these products. We invite you to send any written modifying the shimmy damper attach
relevant data, views, or arguments about bracket. This service information is
DATES: We must receive comments on
this proposal. Send your comments to reasonably available because the
this proposed AD by April 23, 2018. an address listed under the ADDRESSES interested parties have access to it
ADDRESSES: You may send comments, section. Include ‘‘Docket No. FAA– through their normal course of business
using the procedures found in 14 CFR 2018–0180; Product Identifier 2017–CE– or by the means identified in the
11.43 and 11.45, by any of the following 043–AD’’ at the beginning of your ADDRESSES section.
methods: comments. We specifically invite
• Federal eRulemaking Portal: Go to FAA’s Determination
comments on the overall regulatory,
http://www.regulations.gov. Follow the economic, environmental, and energy We are proposing this AD because we
instructions for submitting comments. aspects of this NPRM. We will consider evaluated all the relevant information
• Fax: 202–493–2251. all comments received by the closing and determined the unsafe condition
• Mail: U.S. Department of date and may amend this NPRM described previously is likely to exist or
Transportation, Docket Operations, M– because of those comments. develop in other products of the same
30, West Building Ground Floor, Room We will post all comments we type design.
W12–140, 1200 New Jersey Avenue SE, receive, without change, to http://
Washington, DC 20590. Proposed AD Requirements
www.regulations.gov, including any
• Hand Delivery: Deliver to Mail personal information you provide. We This proposed AD would require
address above between 9 a.m. and 5 will also post a report summarizing each accomplishing the actions specified in
p.m., Monday through Friday, except substantive verbal contact we receive the service information described
Federal holidays. about this NPRM. previously.
For service information identified in
this NPRM, contact Quest Aircraft Discussion Costs of Compliance
Company LLC, 1200 Turbine Drive, We received reports from the We estimate that this proposed AD
Sandpoint, Idaho 83864; phone: (208) manufacturer of fatigue cracks on the affects 116 airplanes of U.S. registry.
263–1111 or 1 (866) 263–1112; email: nose landing gear (NLG) fork on Quest We estimate the following costs to
rmajette on DSKBCKNHB2PROD with PROPOSALS

customerservice@questaircraft.com; Aircraft Design, LLC Model KODIAK comply with this proposed AD:

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Federal Register / Vol. 83, No. 46 / Thursday, March 8, 2018 / Proposed Rules 9821

ESTIMATED COSTS
Cost per Cost on U.S.
Action Labor cost Parts cost product operators

Determine if type A or type B NLG fork is 1 work-hour × $85 per hour = $85 ........... Not applicable ........... $85 $9,860
installed.

We estimate the following costs to do would be required based on the results determining the number of airplanes
any necessary additional inspections, of the proposed NLG fork type that might need these inspections,
replacements, and modifications that determination. We have no way of replacements, and modifications:

ON-CONDITION COSTS
Cost per
Action Labor cost Parts cost product

Inspection of the NLG fork for cracks ................... 4 work-hours × $85 per hour = $340 ................... Not applicable ........... $340
Replacement of the NLG fork ............................... 4 work-hours × $85 per hour = $340 ................... $7,002.36 .................. 7,342.36
Inspection of the shimmy damper bracket ........... 1 work-hour × $85 per hour = $85 ....................... Not applicable ........... 85
Rework of the shimmy damper bracket ................ 4 work-hours × $85 per hour = $340 ................... $127.33 ..................... 467.33

Authority for This Rulemaking substantial direct effect on the States, on Quest Aircraft Design, LLC: Docket No.
the relationship between the national FAA–2018–0180; Product Identifier
Title 49 of the United States Code 2017–CE–043–AD.
specifies the FAA’s authority to issue Government and the States, or on the
rules on aviation safety. Subtitle I, distribution of power and (a) Comments Due Date
section 106, describes the authority of responsibilities among the various We must receive comments by April 23,
the FAA Administrator. Subtitle VII: levels of government. 2018.
Aviation Programs, describes in more For the reasons discussed above, I (b) Affected ADs
detail the scope of the Agency’s certify this proposed regulation:
None.
authority. (1) Is not a ‘‘significant regulatory
We are issuing this rulemaking under action’’ under Executive Order 12866, (c) Applicability
the authority described in Subtitle VII, (2) Is not a ‘‘significant rule’’ under This AD applies to Quest Aircraft Design,
Part A, Subpart III, Section 44701: LLC Model KODIAK 100 airplanes; all serial
the DOT Regulatory Policies and numbers, certificated in any category.
‘‘General requirements.’’ Under that Procedures (44 FR 11034, February 26,
section, Congress charges the FAA with 1979), (d) Subject
promoting safe flight of civil aircraft in (3) Will not affect intrastate aviation Joint Aircraft System Component (JASC)/
air commerce by prescribing regulations in Alaska, and Air Transport Association (ATA) of America
for practices, methods, and procedures Code 32, Landing Gear.
the Administrator finds necessary for (4) Will not have a significant
economic impact, positive or negative, (e) Unsafe Condition
safety in air commerce. This regulation
on a substantial number of small entities This AD was prompted by reports from the
is within the scope of that authority manufacturer of fatigue cracks on the nose
because it addresses an unsafe condition under the criteria of the Regulatory
Flexibility Act. landing gear (NLG) fork. We are issuing this
that is likely to exist or develop on AD to detect and prevent fatigue cracking of
products identified in this rulemaking List of Subjects in 14 CFR Part 39 the NLG fork. The unsafe condition, if not
action. corrected, could result in separation of the
This AD is issued in accordance with Air transportation, Aircraft, Aviation fork with consequent reduced control on
authority delegated by the Executive safety, Incorporation by reference, landing. If the fork separates on an
Safety. unimproved surface, the risk of the NLG
Director, Aircraft Certification Service, digging in and the airplane overturning on
as authorized by FAA Order 8000.51C. The Proposed Amendment the ground increases.
In accordance with that order, issuance
of ADs is normally a function of the Accordingly, under the authority (f) Compliance
Compliance and Airworthiness delegated to me by the Administrator, Comply with this AD within the
Division, but during this transition the FAA proposes to amend 14 CFR part compliance times specified, unless already
period, the Executive Director has 39 as follows: done.
delegated the authority to issue ADs (g) Inspection for Type of NLG Fork
applicable to small airplanes, gliders, PART 39—AIRWORTHINESS
Within 25 hours time-in-service (TIS) after
balloons, airships, domestic business jet DIRECTIVES the effective date of this AD, inspect the
transport airplanes, and associated airplane to determine if a NLG fork part
rmajette on DSKBCKNHB2PROD with PROPOSALS

appliances to the Director of the Policy ■ 1. The authority citation for part 39 number (P/N) 100–410–7001 (type A) or a
and Innovation Division. continues to read as follows: NLG fork P/N 100–410–7013 (type B) is
Authority: 49 U.S.C. 106(g), 40113, 44701. installed. If you determine that a NLG P/N
Regulatory Findings 100–410–7013 (type B) is installed during the
§ 39.13 [Amended] inspection, no further action is required by
We determined that this proposed AD this AD. If a review of the maintenance
would not have federalism implications ■ 2. The FAA amends § 39.13 by adding records can positively identify the P/N NLG
under Executive Order 13132. This the following new airworthiness fork that is installed, you may use a
proposed AD would not have a directive (AD): maintenance records review in lieu of

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Document Created: 2018-03-08 01:47:52
Document Modified: 2018-03-08 01:47:52

Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Proposed Rules
Action		Notice of proposed rulemaking (NPRM).
Dates		We must receive comments on this proposed AD by April 23, 2018.
Contact		Wade Sullivan, Aerospace Engineer, Seattle ACO Branch, FAA, 1601 Lind Avenue SW, Renton, WA 98057; phone: 425-917-6430; fax: 425-917-6590; email: [email protected]
FR Citation		83 FR 9820
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

83 FR 9820 - Airworthiness Directives; Quest Aircraft Design, LLC Airplanes

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 83, Issue 46 (March 8, 2018)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration