83 FR 42232 - Airworthiness Directives; Bell Helicopter Textron Canada Limited Helicopters

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 162 (August 21, 2018)

Page Range		42232-42234
FR Document		2018-17902

We propose to adopt a new airworthiness directive (AD) for Bell Helicopter Textron Canada Limited (Bell) Model 206A, 206B, 206L, 206L-1, 206L-3, 206L-4, and 407 helicopters. This proposed AD would require inspecting and cleaning the oil supply restrictor (restrictor) to the freewheel assembly. This proposed AD is prompted by reports of a blocked oil line restrictor in the freewheel lubrication system. The proposed actions are intended to address an unsafe condition on these products.

Federal Register, Volume 83 Issue 162 (Tuesday, August 21, 2018)

[Federal Register Volume 83, Number 162 (Tuesday, August 21, 2018)]
[Proposed Rules]
[Pages 42232-42234]
From the Federal Register Online [www.thefederalregister.org]
[FR Doc No: 2018-17902]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0740; Product Identifier 2016-SW-045-AD]
RIN 2120-AA64

Airworthiness Directives; Bell Helicopter Textron Canada Limited
Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for
Bell Helicopter Textron Canada Limited (Bell) Model 206A, 206B, 206L,
206L-1, 206L-3, 206L-4, and 407 helicopters. This proposed AD would
require inspecting and cleaning the oil supply restrictor (restrictor)
to the freewheel assembly. This proposed AD is prompted by reports of a
blocked oil line restrictor in the freewheel lubrication system. The
proposed actions are intended to address an unsafe condition on these
products.

DATES: We must receive comments on this proposed AD by October 22,
2018.

ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the online instructions for sending your
comments electronically.
Fax: 202-493-2251.
Mail: Send comments to the U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590-0001.
Hand Delivery: Deliver to the ``Mail'' address between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

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-
0740; 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 proposed AD, the Transport Canada AD, the economic evaluation, any
comments received, and other information. The street address for Docket
Operations (telephone 800-647-5527) is in the ADDRESSES section.
Comments will be available in the AD docket shortly after receipt.
For service information identified in this proposed rule, contact
Bell Helicopter Textron Canada Limited, 12,800 Rue de l'Avenir,
Mirabel, Quebec J7J1R4; telephone (450) 437-2862 or (800) 363-8023; fax
(450) 433-0272; or at http://www.bellcustomer.com/files/. You may
review the referenced service information at the FAA, Office of the
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321,
Fort Worth, TX 76177.

FOR FURTHER INFORMATION CONTACT: David Hatfield, Aviation Safety
Engineer, Safety Management Section, Rotorcraft Standards Branch, FAA,
10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222-5110;
email david.hatfield@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

We invite you to participate in this rulemaking by submitting
written comments, data, or views. We also invite comments relating to
the economic, environmental, energy, or federalism impacts that might
result from adopting the proposals in this document. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. To
ensure the docket does not contain duplicate comments, commenters
should send only one copy of written comments, or if comments are filed
electronically, commenters should submit only one time.
We will file in the docket all comments that we receive, as well as
a report summarizing each substantive public contact with FAA personnel
concerning this proposed rulemaking. Before acting on this proposal, we
will consider all comments we receive on or before the closing date for
comments. We will consider comments filed after the comment period has
closed if it is possible to do so without incurring expense or delay.
We may change this proposal in light of the comments we receive.

Discussion

Transport Canada, which is the aviation authority for Canada, has
issued Canadian AD No. CF-2016-13, dated May 16, 2016 (AD No. CF-2016-
13), to correct an unsafe condition for Bell Model 206A, 206B, 206L,
206L-1, 206L-3, 206L-4, and 407 helicopters. Transport Canada advises
that they have received two reports of torsional overload failure of
the main rotor mast caused by a blocked oil line restrictor in the
freewheel lubrication system. Transport Canada states the restrictor
may become contaminated during maintenance, causing blockage. Transport
Canada further states that a blocked restrictor could cause the
freewheel assembly to malfunction and result in failure of the main
rotor mast and loss of control of the helicopter.
Additionally, the Canadian AD advises that although certain later
versions of these helicopters are equipped with a filter in the
freewheel lubrication system that is designed to trap contaminants and
prevent blockage of the restrictor, installation of the filter does not
guarantee the restrictor will remain free of contaminants. According to
Transport Canada, one occurrence of restrictor blockage resulted from
contaminants being introduced downstream from the filter, which
subsequently caused failure of the freewheel assembly. For these
reasons, AD No. CF-2016-13 requires inspecting and cleaning the
restrictors and filters to reduce the risk of freewheel failure.

FAA's Determination

These helicopters have been approved by the aviation authority of
Canada and are approved for operation in the United States. Pursuant to
our bilateral agreement with Canada, Transport

[[Page 42233]]

Canada, its technical representative, has notified us of the unsafe
condition described in its AD. We are proposing this AD because we
evaluated all known relevant information and determined that an unsafe
condition is likely to exist or develop on other products of the same
type design.

Related Service Information Under 1 CFR Part 51

We reviewed Bell Alert Service Bulletin (ASB) 206-14-132 for Model
206A/B and TH-67 helicopters; ASB 206L-14-174 for Model 206L, 206L-1,
206L-3, and 206L-4 helicopters; and ASB 407-14-106 for Model 407
helicopters. Each ASB is Revision A and dated February 9, 2016. This
service information specifies removing, cleaning, inspecting, and
reinstalling certain freewheel assembly components. ASB 206-14-132 and
ASB 206L-14-174 also describe procedures for replacing the reducer with
a filter if not already installed.
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.

Proposed AD Requirements

For all affected models, this AD would require, within 100 hours
time-in-service, inspecting and cleaning the freewheel oil supply
system. If there is blockage in the restrictor, disassembling and
inspecting the freewheel assembly for condition and wear would be
required before further flight. Additionally, for Model 206A, 206B,
206L, 206L-1, 206L-3, and 206L-4 helicopters, this proposed AD would
require replacing the reducer with a filter, part number 50-075-1.

Costs of Compliance

We estimate that this proposed AD would affect 2,227 helicopters of
U.S. Registry. We estimate that operators may incur the following costs
in order to comply with this proposed AD. At an average labor rate of
$85 per hour, inspecting and cleaning the freewheel oil supply system
would require about 1 work-hour, for a cost per helicopter of $85 and
$189,295 for the U.S. fleet, per inspection cycle.
If required, inspecting the freewheel assembly would require about
1 work-hour, for a cost per helicopter of $85.
If required, replacing a restrictor with a filter would require
about 1 work-hour and required parts would cost $125, for a cost per
helicopter of $210.

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 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, 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 to the extent that
it justifies making a regulatory distinction; 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.
We prepared an economic evaluation of the estimated costs to comply
with this proposed AD and placed it in the AD docket.

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):

Bell Helicopter Textron Canada Limited (Bell): Docket No. FAA-2018-
0740; Product Identifier 2016-SW-045-AD.

(a) Applicability

This AD applies to Bell Model 206A, 206B, 206L, 206L-1, 206L-3,
206L-4, and 407 helicopters, certificated in any category.

(b) Unsafe Condition

This AD defines the unsafe condition as a blocked oil line
restrictor. This condition could cause failure of the freewheel
assembly, which could result in failure of the main rotor mast and
subsequent loss of control of the helicopter.

We must receive comments by October 22, 2018.

(d) Compliance

You are responsible for performing each action required by this
AD within the specified compliance time unless it has already been
accomplished prior to that time.

(e) Required Actions

Within 100 hours time-in-service:
(1) For all helicopters:
(i) Inspect the oil line restrictor for blockage. If there is
any blockage in the restrictor, before further flight, inspect the
freewheel assembly clutch, inner shaft, outer shaft, forward seal,
cap, and bearings for wear, corrosion, nicks, scratches, and cracks;
the splines for wear, cracks, chipped teeth, and broken teeth; the
housing for flaking; and for free rotation and engagement of the
clutch and bearing. If there is any damage that exceeds allowable
limits or if the clutch or bearing does not engage or freely rotate,
before further flight, repair or replace the freewheel assembly.
(ii) Clean, inspect, and flush each removed fitting, restrictor,
tube, hose, and filter with dry cleaning solvent. Do not approve for
return to service until each restrictor is free from contamination.
(2) For Model 206A, 206B, 206L, 206L-1, 206L-3, and 206L-4
helicopters with a reducer, replace the reducer with a filter part
number 50-075-1.

(f) Special Flight Permits

Special flight permits are prohibited.

(g) Alternative Methods of Compliance (AMOCs)

(1) The Manager, Safety Management Group, FAA, may approve AMOCs
for this AD. Send your proposal to: David Hatfield, Aviation Safety
Engineer, Safety Management Section, Rotorcraft Standards Branch,
FAA,

[[Page 42234]]

10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222-
5110; email 9-ASW-FTW-AMOC-Requests@faa.gov.
(2) For operations conducted under a 14 CFR part 119 operating
certificate or under 14 CFR part 91, subpart K, we suggest that you
notify your principal inspector, or lacking a principal inspector,
the manager of the local flight standards district office or
certificate holding district office before operating any aircraft
complying with this AD through an AMOC.

(h) Additional Information

The subject of this AD is addressed in Transport Canada AD No.
CF-2016-13, dated May 16, 2016. You may view the Transport Canada AD
on the internet at http://www.regulations.gov in the AD Docket.

(i) Subject

Joint Aircraft Service Component (JASC) Code: 6300, Main Rotor
Drive System.

Issued in Fort Worth, Texas, on August 10, 2018.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2018-17902 Filed 8-20-18; 8:45 am]
BILLING CODE 4910-13-P

42232 Federal Register / Vol. 83, No. 162 / Tuesday, August 21, 2018 / Proposed Rules

(g) Alternative Methods of Compliance DATES: We must receive comments on proposal, explain the reason for any
(AMOCs) this proposed AD by October 22, 2018. recommended change, and include
(1) The Manager, Safety Management ADDRESSES: You may send comments by supporting data. To ensure the docket
Section, Rotorcraft Standards Branch, FAA, any of the following methods: does not contain duplicate comments,
may approve AMOCs for this AD. Send your
proposal to: David Hatfield, Aviation Safety
• Federal eRulemaking Docket: Go to commenters should send only one copy
http://www.regulations.gov. Follow the of written comments, or if comments are
Engineer, Safety Management Section,
Rotorcraft Standards Branch, FAA, 10101 online instructions for sending your filed electronically, commenters should
Hillwood Pkwy., Fort Worth, TX 76177; comments electronically. submit only one time.
telephone (817) 222–5110; email 9-ASW- • Fax: 202–493–2251. We will file in the docket all
FTW-AMOC-Requests@faa.gov. • Mail: Send comments to the U.S. comments that we receive, as well as a
(2) For operations conducted under a 14 Department of Transportation, Docket report summarizing each substantive
CFR part 119 operating certificate or under Operations, M–30, West Building public contact with FAA personnel
14 CFR part 91, subpart K, we suggest that concerning this proposed rulemaking.
you notify your principal inspector, or
Ground Floor, Room W12–140, 1200
New Jersey Avenue SE, Washington, DC Before acting on this proposal, we will
lacking a principal inspector, the manager of consider all comments we receive on or
the local flight standards district office or 20590–0001.
certificate holding district office before • Hand Delivery: Deliver to the before the closing date for comments.
operating any aircraft complying with this ‘‘Mail’’ address between 9 a.m. and 5 We will consider comments filed after
AD through an AMOC. p.m., Monday through Friday, except the comment period has closed if it is
Federal holidays. possible to do so without incurring
(h) Additional Information
expense or delay. We may change this
The subject of this AD is addressed in Examining the AD Docket proposal in light of the comments we
European Aviation Safety Agency (EASA) AD receive.
No. 2017–0025, dated February 14, 2017. You You may examine the AD docket on
may view the EASA AD on the internet at the internet at http:// Discussion
http://www.regulations.gov in the AD Docket. www.regulations.gov by searching for
Transport Canada, which is the
(i) Subject
and locating Docket No. FAA–2018–
aviation authority for Canada, has
0740; or in person at Docket Operations
Joint Aircraft Service Component (JASC) issued Canadian AD No. CF–2016–13,
between 9 a.m. and 5 p.m., Monday
Code: Cabin/Equipment Furnishings. dated May 16, 2016 (AD No. CF–2016–
through Friday, except Federal holidays.
Issued in Fort Worth, Texas, on August 6, 13), to correct an unsafe condition for
The AD docket contains this proposed
2018. Bell Model 206A, 206B, 206L, 206L–1,
AD, the Transport Canada AD, the
Lance T. Gant, 206L–3, 206L–4, and 407 helicopters.
economic evaluation, any comments
Director, Compliance & Airworthiness Transport Canada advises that they have
received, and other information. The
Division, Aircraft Certification Service. received two reports of torsional
street address for Docket Operations
[FR Doc. 2018–17903 Filed 8–20–18; 8:45 am] overload failure of the main rotor mast
(telephone 800–647–5527) is in the
caused by a blocked oil line restrictor in
BILLING CODE 4910–13–P ADDRESSES section. Comments will be
the freewheel lubrication system.
available in the AD docket shortly after
Transport Canada states the restrictor
receipt.
DEPARTMENT OF TRANSPORTATION may become contaminated during
For service information identified in
maintenance, causing blockage.
this proposed rule, contact Bell
Federal Aviation Administration Transport Canada further states that a
Helicopter Textron Canada Limited,
blocked restrictor could cause the
12,800 Rue de l’Avenir, Mirabel, Quebec
14 CFR Part 39 freewheel assembly to malfunction and
J7J1R4; telephone (450) 437–2862 or
[Docket No. FAA–2018–0740; Product result in failure of the main rotor mast
(800) 363–8023; fax (450) 433–0272; or
Identifier 2016–SW–045–AD] and loss of control of the helicopter.
at http://www.bellcustomer.com/files/. Additionally, the Canadian AD
RIN 2120–AA64 You may review the referenced service advises that although certain later
information at the FAA, Office of the versions of these helicopters are
Airworthiness Directives; Bell Regional Counsel, Southwest Region, equipped with a filter in the freewheel
Helicopter Textron Canada Limited 10101 Hillwood Pkwy., Room 6N–321, lubrication system that is designed to
Helicopters Fort Worth, TX 76177. trap contaminants and prevent blockage
AGENCY: Federal Aviation FOR FURTHER INFORMATION CONTACT: of the restrictor, installation of the filter
Administration (FAA), DOT. David Hatfield, Aviation Safety does not guarantee the restrictor will
ACTION: Notice of proposed rulemaking
Engineer, Safety Management Section, remain free of contaminants. According
(NPRM). Rotorcraft Standards Branch, FAA, to Transport Canada, one occurrence of
10101 Hillwood Pkwy., Fort Worth, TX restrictor blockage resulted from
SUMMARY: We propose to adopt a new 76177; telephone (817) 222–5110; email contaminants being introduced
airworthiness directive (AD) for Bell david.hatfield@faa.gov. downstream from the filter, which
Helicopter Textron Canada Limited SUPPLEMENTARY INFORMATION: subsequently caused failure of the
(Bell) Model 206A, 206B, 206L, 206L–1, freewheel assembly. For these reasons,
206L–3, 206L–4, and 407 helicopters. Comments Invited
AD No. CF–2016–13 requires inspecting
This proposed AD would require We invite you to participate in this
sradovich on DSK3GMQ082PROD with PROPOSALS

and cleaning the restrictors and filters to
inspecting and cleaning the oil supply rulemaking by submitting written reduce the risk of freewheel failure.
restrictor (restrictor) to the freewheel comments, data, or views. We also
assembly. This proposed AD is invite comments relating to the FAA’s Determination
prompted by reports of a blocked oil economic, environmental, energy, or These helicopters have been approved
line restrictor in the freewheel federalism impacts that might result by the aviation authority of Canada and
lubrication system. The proposed from adopting the proposals in this are approved for operation in the United
actions are intended to address an document. The most helpful comments States. Pursuant to our bilateral
unsafe condition on these products. reference a specific portion of the agreement with Canada, Transport

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Federal Register / Vol. 83, No. 162 / Tuesday, August 21, 2018 / Proposed Rules 42233

Canada, its technical representative, has Authority for This Rulemaking PART 39—AIRWORTHINESS
notified us of the unsafe condition DIRECTIVES
described in its AD. We are proposing Title 49 of the United States Code
this AD because we evaluated all known specifies the FAA’s authority to issue ■ 1. The authority citation for part 39
relevant information and determined rules on aviation safety. Subtitle I, continues to read as follows:
section 106, describes the authority of
that an unsafe condition is likely to Authority: 49 U.S.C. 106(g), 40113, 44701.
the FAA Administrator. ‘‘Subtitle VII:
exist or develop on other products of the
Aviation Programs,’’ describes in more § 39.13 [Amended]
same type design.
detail the scope of the Agency’s ■ 2. The FAA amends § 39.13 by adding
Related Service Information Under 1 authority. the following new airworthiness
CFR Part 51 We are issuing this rulemaking under directive (AD):
the authority described in ‘‘Subtitle VII, Bell Helicopter Textron Canada Limited
We reviewed Bell Alert Service Part A, Subpart III, Section 44701:
Bulletin (ASB) 206–14–132 for Model (Bell): Docket No. FAA–2018–0740;
General requirements.’’ Under that Product Identifier 2016–SW–045–AD.
206A/B and TH–67 helicopters; ASB section, Congress charges the FAA with
206L–14–174 for Model 206L, 206L–1, promoting safe flight of civil aircraft in (a) Applicability
206L–3, and 206L–4 helicopters; and air commerce by prescribing regulations This AD applies to Bell Model 206A, 206B,
ASB 407–14–106 for Model 407 for practices, methods, and procedures 206L, 206L–1, 206L–3, 206L–4, and 407
helicopters. Each ASB is Revision A and the Administrator finds necessary for helicopters, certificated in any category.
dated February 9, 2016. This service safety in air commerce. This regulation (b) Unsafe Condition
information specifies removing, is within the scope of that authority This AD defines the unsafe condition as a
cleaning, inspecting, and reinstalling because it addresses an unsafe condition blocked oil line restrictor. This condition
certain freewheel assembly components. that is likely to exist or develop on could cause failure of the freewheel
ASB 206–14–132 and ASB 206L–14–174 products identified in this rulemaking assembly, which could result in failure of the
also describe procedures for replacing action. main rotor mast and subsequent loss of
the reducer with a filter if not already control of the helicopter.
installed. Regulatory Findings
(c) Comments Due Date
This service information is reasonably We determined that this proposed AD We must receive comments by October 22,
available because the interested parties would not have federalism implications 2018.
have access to it through their normal under Executive Order 13132. This
(d) Compliance
course of business or by the means proposed AD would not have a
identified in the ADDRESSES section. substantial direct effect on the States, on You are responsible for performing each
the relationship between the national action required by this AD within the
Proposed AD Requirements Government and the States, or on the
specified compliance time unless it has
already been accomplished prior to that time.
For all affected models, this AD distribution of power and
responsibilities among the various (e) Required Actions
would require, within 100 hours time-
in-service, inspecting and cleaning the levels of government. Within 100 hours time-in-service:
For the reasons discussed, I certify (1) For all helicopters:
freewheel oil supply system. If there is
this proposed regulation: (i) Inspect the oil line restrictor for
blockage in the restrictor, disassembling blockage. If there is any blockage in the
and inspecting the freewheel assembly 1. Is not a ‘‘significant regulatory restrictor, before further flight, inspect the
for condition and wear would be action’’ under Executive Order 12866; freewheel assembly clutch, inner shaft, outer
required before further flight. 2. Is not a ‘‘significant rule’’ under the shaft, forward seal, cap, and bearings for
Additionally, for Model 206A, 206B, DOT Regulatory Policies and Procedures wear, corrosion, nicks, scratches, and cracks;
206L, 206L–1, 206L–3, and 206L–4 (44 FR 11034, February 26, 1979); the splines for wear, cracks, chipped teeth,
helicopters, this proposed AD would and broken teeth; the housing for flaking; and
3. Will not affect intrastate aviation in for free rotation and engagement of the clutch
require replacing the reducer with a Alaska to the extent that it justifies and bearing. If there is any damage that
filter, part number 50–075–1. making a regulatory distinction; and exceeds allowable limits or if the clutch or
Costs of Compliance 4. Will not have a significant bearing does not engage or freely rotate,
economic impact, positive or negative, before further flight, repair or replace the
We estimate that this proposed AD freewheel assembly.
on a substantial number of small entities
would affect 2,227 helicopters of U.S. (ii) Clean, inspect, and flush each removed
under the criteria of the Regulatory fitting, restrictor, tube, hose, and filter with
Registry. We estimate that operators Flexibility Act. dry cleaning solvent. Do not approve for
may incur the following costs in order
We prepared an economic evaluation return to service until each restrictor is free
to comply with this proposed AD. At an from contamination.
of the estimated costs to comply with
average labor rate of $85 per hour, (2) For Model 206A, 206B, 206L, 206L–1,
this proposed AD and placed it in the
inspecting and cleaning the freewheel 206L–3, and 206L–4 helicopters with a
AD docket.
oil supply system would require about reducer, replace the reducer with a filter part
1 work-hour, for a cost per helicopter of List of Subjects in 14 CFR Part 39 number 50–075–1.
$85 and $189,295 for the U.S. fleet, per (f) Special Flight Permits
Air transportation, Aircraft, Aviation
sradovich on DSK3GMQ082PROD with PROPOSALS

inspection cycle.
safety, Incorporation by reference, Special flight permits are prohibited.
If required, inspecting the freewheel Safety.
assembly would require about 1 work- (g) Alternative Methods of Compliance
The Proposed Amendment (AMOCs)
hour, for a cost per helicopter of $85.
(1) The Manager, Safety Management
If required, replacing a restrictor with Accordingly, under the authority Group, FAA, may approve AMOCs for this
a filter would require about 1 work-hour delegated to me by the Administrator, AD. Send your proposal to: David Hatfield,
and required parts would cost $125, for the FAA proposes to amend 14 CFR part Aviation Safety Engineer, Safety Management
a cost per helicopter of $210. 39 as follows: Section, Rotorcraft Standards Branch, FAA,

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Document Created: 2018-08-21 00:06:49
Document Modified: 2018-08-21 00:06:49

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 October 22, 2018.
Contact		David Hatfield, Aviation Safety Engineer, Safety Management Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222-5110; email [email protected]
FR Citation		83 FR 42232
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

83 FR 42232 - Airworthiness Directives; Bell Helicopter Textron Canada Limited Helicopters

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 83, Issue 162 (August 21, 2018)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration