83 FR 13706 - Airworthiness Directives; Robinson Helicopter Company Helicopters

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 62 (March 30, 2018)

Page Range		13706-13708
FR Document		2018-06449

We propose to adopt a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R66 helicopters. This proposed AD would require replacing the tail rotor drive shaft yoke assembly and inspecting for sealant. This proposed AD is prompted by reports of tail rotor driveshaft failures. The actions of this proposed AD are intended to correct an unsafe condition on these products.

Federal Register, Volume 83 Issue 62 (Friday, March 30, 2018)

[Federal Register Volume 83, Number 62 (Friday, March 30, 2018)]
[Proposed Rules]
[Pages 13706-13708]
From the Federal Register Online [www.thefederalregister.org]
[FR Doc No: 2018-06449]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0682; Product Identifier 2017-SW-028-AD]
RIN 2120-AA64

Airworthiness Directives; Robinson Helicopter Company Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for
Robinson Helicopter Company (Robinson) Model R66 helicopters. This
proposed AD would require replacing the tail rotor drive shaft yoke
assembly and inspecting for sealant. This proposed AD is prompted by
reports of tail rotor driveshaft failures. The actions of this proposed
AD are intended to correct an unsafe condition on these products.

DATES: We must receive comments on this proposed AD by May 29, 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

[[Page 13707]]

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-2017-
0682; 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 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
Robinson Helicopter Company, 2901 Airport Drive, Torrance, CA 90505;
telephone (310) 539-0508; fax (310) 539-5198; or at http://www.robinsonheli.com/servelib.htm. 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: Danny Nguyen, Aerospace Engineer, Los
Angeles ACO Branch, Compliance & Airworthiness Division, FAA, 3960
Paramount Blvd., Lakewood, California 90712; telephone (562) 627-5247;
email danny.nguyen@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

We propose to adopt a new AD for Robinson Model R66 helicopters,
serial numbers 0003 through 0752, with a tail rotor drive shaft
assembly part number (P/N) D224-3 or D224-4 installed. This proposed AD
would require, within 100 hours time-in-service (TIS), replacing the
forward yoke assembly of the tail rotor drive shaft unless already
accomplished, visually inspecting for sealant, and applying sealant if
needed to prevent seal rotation.
This proposed AD is prompted by two incidents of bearing failure
that stem from a bearing assembly that included a bearing that was
undersized for its housing. Consequently, the bearing was spinning at a
speed that caused excessive heating of the bearing operation and led to
the breakdown of the bearing's grease and ultimately seizure of the
C647-16 bearing.
To correct this condition, Robinson initially specified installing
a temperature recorder on the tail rotor driveshaft bearing assembly
(bearing assembly) and inspecting the temperature recorder during
preflight checks and during each 100-hour inspection. If the bearing
was found running hot, then Robinson advised upgrading the bearing to a
newer design.
Robinson later specified through R66 Service Bulletin SB-20, dated
November 7, 2016, modifying the forward D224-3 and D224-4 tail rotor
drive shaft assemblies by using a kit that has an improved, larger
bearing that spins with less friction. The bulletin also specified
inspecting whether 0.5 inch of sealant was on the junction of the black
seal and bearing outer race and installing sealant if there was less
than 0.5 inch of sealant. Robinson clarified R66 Service Bulletin SB-20
with R66 Service Bulletin SB-20A, dated June 6, 2017, that helicopters
equipped with D224-4 tail rotor drive shaft assemblies and certain
modified D224-3 assemblies do not require being upgraded with the kit.
The actions specified by this AD are intended prevent failure of
the tail rotor driveshaft forward bearing and subsequent loss of
helicopter control.

FAA's Determination

We are proposing this AD because we evaluated all known relevant
information and determined that an unsafe condition exists and is
likely to exist or develop on other products of these same type
designs.

Related Service Information

We reviewed Robinson R66 Service Bulletin SB-14, dated June 25,
2015, which specifies installing a temperature recorder on the bearing
assembly and inspecting the temperature during preflight checks and
during each 100-hour inspection. If the temperature of the bearing is
found running hot, then Robinson advises upgrading the bearing to a
newer design (kit P/N KI-235). This service information also specifies
adding a caution page to the Pilot Operating Handbook regarding the
overheating bearing assemblies.
We also reviewed Robinson R66 Service Bulletin SB-20, dated
November 7, 2016, and Robinson R66 Service Bulletin SB-20A, dated June
6, 2017, which specify upgrading the bearing assembly to the newer
design with kit P/N KI-235 if not previously done. The service
information also contains procedures for inspecting for sealant and
applying sealant to the damper and hanger bearings if needed to prevent
seal rotation.
Lastly, we reviewed Robinson KI-235 R66 TRDS Forward Yoke Assembly
and Hanger Installation Kit Instructions, Revision A, dated June 23,
2015. This information provides instructions for installing the newly
designed forward yoke assembly, P/N D224-5, on the tail rotor drive
shaft.

Proposed AD Requirements

This proposed AD would require, within 100 hours TIS, replacing the
tail rotor drive shaft forward yoke assembly, inspecting the damper and
hanger bearings for sealant, and applying sealant if needed.

Differences Between This Proposed AD and the Service Information

The service information specifies replacing the forward yoke
assembly and applying the sealant to the bearing seals within the next
100 flight hours or by January 31, 2017, whichever comes first. This
proposed AD would not have a calendar time compliance requirement.

Costs of Compliance

We estimate that this proposed AD would affect 249 helicopters of
U.S. Registry and that labor costs average $85 per work-hour. Based on
these estimates, we expect the following costs:

[[Page 13708]]

Replacing the yoke assembly would require 6 work-hours and
$798 for parts, for a cost of $1,308 per helicopter.
Inspecting for and applying sealant would require 1 work-
hour and $30 for parts, for a cost of $115 per helicopter.
Based on these costs, we expect a total cost of $1,423 per
helicopter and $354,327 for the U.S. operator fleet.

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):

Robinson Helicopter Company: Docket No. FAA-2017-0682; Directorate
Identifier 2017-SW-028-AD.

(a) Applicability

This AD applies to Robinson Helicopter Company (Robinson) Model
R66 helicopters, serial numbers 0003 through 0752, with a tail rotor
drive shaft assembly part number (P/N) D224-3 or D224-4 tail rotor
drive shaft assembly installed, certificated in any category.

(b) Unsafe Condition

This AD defines the unsafe condition as failure of a tail rotor
driveshaft forward bearing. This condition could result in failure
of the tail rotor driveshaft and subsequent loss of helicopter
control.

We must receive comments by May 29, 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 TIS:
(1) Replace the tail rotor drive shaft forward yoke assembly
with a yoke assembly part number D224-5, if not previously done.
(2) Remove the forward inspection plug assembly from the
tailcone and either remove the B322-2 cover from the top of the
third tailcone bay or, if an antenna is installed, remove the
antenna and pull the circuit breaker.
(3) Visually inspect the forward and aft sides of the hanger
bearing and damper bearing for sealant along the junction of the
seal and bearing outer race. If the sealant is less than 0.5 inch in
length, clean the area and apply a minimum 0.5 inch long bead of
polysulfide fuel-resistant sealant at the junction of the seal and
bearing outer race.

(f) Alternative Methods of Compliance (AMOC)

(1) The Manager, Los Angeles ACO Branch, FAA, may approve AMOCs
for this AD. Send your proposal to: Danny Nguyen, Aerospace
Engineer, Los Angeles ACO Branch, Compliance & Airworthiness
Division, FAA, 3960 Paramount Blvd., Lakewood, California 90712;
telephone (562) 627-5247; email 9-ANM-LAACO-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.

(g) Additional Information

For service information identified in this AD, contact Robinson
Helicopter Company, 2901 Airport Drive, Torrance, CA 90505;
telephone (310) 539-0508; fax (310) 539-5198; or at http://www.robinsonheli.com/servelib.htm. You may review a copy of
information at the FAA, Office of the Regional Counsel, Southwest
Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177.

(h) Subject

Joint Aircraft Service Component (JASC) Code: 6510, Tail Rotor
Drive Shaft.

Issued in Fort Worth, Texas, on March 23, 2018.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2018-06449 Filed 3-29-18; 8:45 am]
BILLING CODE 4910-13-P

13706 Federal Register / Vol. 83, No. 62 / Friday, March 30, 2018 / Proposed Rules

Regulatory Findings engines with high-pressure turbine (HPT) (k) Related Information
disks with serial numbers listed in Table 1 (1) For more information about this AD,
We determined that this proposed AD and 2 of Appendix A in GE CF6–80C2
would not have federalism implications contact Herman Mak, Aerospace Engineer,
Service Bulletin (SB) 72–1562 R03, dated FAA, ECO Branch, Compliance and
under Executive Order 13132. This January 10, 2018; and Table 1 of Appendix Airworthiness Division, 1200 District
proposed AD would not have a A in GE CF6–80A SB 72–0869 R01, dated Avenue, Burlington, MA 01803; phone: 781–
substantial direct effect on the States, on October 19, 2017. 238–7147; fax: 781–238–7199; email:
the relationship between the national (d) Subject herman.mak@faa.gov.
Government and the States, or on the (2) For service information identified in
distribution of power and Joint Aircraft System Component (JASC) this AD, contact General Electric Company,
Code 7250, Turbine/Turboprop Engine— GE Aviation, Room 285, 1 Neumann Way,
responsibilities among the various
Turbine Section. Cincinnati, OH 45215; phone: 513–552–3272;
levels of government.
For the reasons discussed above, I (e) Unsafe Condition email: aviation.fleetsupport@ge.com. You
certify this proposed regulation: may view this referenced service information
This AD was prompted by an uncontained at the FAA, Engine and Propeller Standards
(1) Is not a ‘‘significant regulatory failure of an HPT stage 2 disk. We are issuing Branch, 1200 District Avenue, Burlington,
action’’ under Executive Order 12866, this AD to prevent failure of the HPT Stage MA 01803. For information on the
(2) Is not a ‘‘significant rule’’ under 1 disk (CF6–80C2) and the HPT Stage 2 disk availability of this material at the FAA, call
the DOT Regulatory Policies and (CF6–80C2 and CF6–80A). The unsafe 781–238–7759.
Procedures (44 FR 11034, February 26, condition, if not addressed, could result in an
uncontained HPT disk release, damage to the Issued in Burlington, Massachusetts, on
1979), March 23, 2018.
(3) Will not affect intrastate aviation engine, and damage to the airplane.
Robert J. Ganley,
in Alaska, and (f) Compliance
(4) Will not have a significant Manager, Engine and Propeller Standards
Comply with this AD within the Branch, Aircraft Certification Service.
economic impact, positive or negative, compliance times specified, unless already
on a substantial number of small entities [FR Doc. 2018–06390 Filed 3–29–18; 8:45 am]
done.
under the criteria of the Regulatory BILLING CODE 4910–13–P
(g) Required Actions
Flexibility Act.
After the effective date of this AD, perform
List of Subjects in 14 CFR Part 39 an ultrasonic inspection (UI) for cracks in DEPARTMENT OF TRANSPORTATION
Air transportation, Aircraft, Aviation stage 1 and stage 2 HPT disks on the CF6–
safety, Incorporation by reference, 80C2 engine model and in stage 2 HPT disks Federal Aviation Administration
Safety. on the CF6–80A engine model at each piece-
part level exposure in accordance with the 14 CFR Part 39
The Proposed Amendment Accomplishment Instructions, paragraph
3.A.(2), in GE CF6–80C2 SB 72–1562 R03, [Docket No. FAA–2017–0682; Product
Accordingly, under the authority dated January 10, 2018, or the Identifier 2017–SW–028–AD]
delegated to me by the Administrator, Accomplishment Instructions, paragraph RIN 2120–AA64
the FAA proposes to amend 14 CFR part 3.A.(2) in GE CF6–80A SB 72–0869 R01,
39 as follows: dated October 19, 2017, as applicable to the Airworthiness Directives; Robinson
engine model. Helicopter Company Helicopters
PART 39—AIRWORTHINESS
DIRECTIVES (h) Non-Required Actions
AGENCY: Federal Aviation
The reporting requirements specified in the Administration (FAA), DOT.
■ 1. The authority citation for part 39 Accomplishment Instructions, paragraphs
continues to read as follows: 3.A.(2)(c) and 3.A.(2)(f), of GE CF6–80C2 SB ACTION: Notice of proposed rulemaking
72–1562 R03, dated January 10, 2018, are not (NPRM).
Authority: 49 U.S.C. 106(g), 40113, 44701.
required by this AD.
SUMMARY: We propose to adopt a new
§ 39.13 [Amended] (i) Definition airworthiness directive (AD) for
■ 2. The FAA amends § 39.13 by adding For the purpose of this AD, ‘‘piece-part Robinson Helicopter Company
the following new airworthiness exposure’’ of the stage 1 or stage 2 HPT disk (Robinson) Model R66 helicopters. This
directive (AD): is separation of that HPT disk from its mating proposed AD would require replacing
General Electric Company: Docket No. FAA– rotor parts within the HPT rotor module the tail rotor drive shaft yoke assembly
2017–0792; Product Identifier 2017–NE– (thermal shield and HPT stage 1 and stage 2 and inspecting for sealant. This
28–AD. disk respectively).
proposed AD is prompted by reports of
(a) Comments Due Date (j) Alternative Methods of Compliance tail rotor driveshaft failures. The actions
(AMOCs) of this proposed AD are intended to
We must receive comments by May 14,
2018. (1) The Manager, ECO Branch, FAA, has correct an unsafe condition on these
the authority to approve AMOCs for this AD, products.
(b) Affected ADs if requested using the procedures found in 14
CFR 39.19. In accordance with 14 CFR 39.19, DATES: We must receive comments on
None.
send your request to your principal inspector this proposed AD by May 29, 2018.
(c) Applicability or local Flight Standards District Office, as ADDRESSES: You may send comments by
This AD applies to General Electric appropriate. If sending information directly any of the following methods:
Company (GE) CF6–80A, CF6–80A1, CF6– to the manager of the certification office send • Federal eRulemaking Docket: Go to
amozie on DSK30RV082PROD with PROPOSALS

80A2, CF6–80A3, CF6–80C2A1, CF6– it to the attention of the person identified in http://www.regulations.gov. Follow the
80C2A2, CF6–80C2A3, CF6–80C2A5, CF6– paragraph (j) of this AD. You may email your
online instructions for sending your
80C2A5F, CF6–80C2A8, CF6–80C2B1, CF6– request to: ANE-AD-AMOC@faa.gov.
80C2B1F, CF6–80C2B2, CF6–80C2B2F, CF6– (2) Before using any approved AMOC, comments electronically.
80C2B4, CF6–80C2B4F, CF6–80C2B5F, CF6– notify your appropriate principal inspector, • Fax: 202–493–2251.
80C2B6, CF6–80C2B6F, CF6–80C2B6FA, or lacking a principal inspector, the manager • Mail: Send comments to the U.S.
CF6–80C2B7F, CF6–80C2D1F, CF6– of the local flight standards district office/ Department of Transportation, Docket
80C2L1F, and CF6–80C2K1F turbofan certificate holding district office. Operations, M–30, West Building

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13708 Federal Register / Vol. 83, No. 62 / Friday, March 30, 2018 / Proposed Rules

• Replacing the yoke assembly would The Proposed Amendment 3960 Paramount Blvd., Lakewood, California
require 6 work-hours and $798 for parts, 90712; telephone (562) 627–5247; email 9-
Accordingly, under the authority ANM-LAACO-AMOC-REQUESTS@faa.gov.
for a cost of $1,308 per helicopter. delegated to me by the Administrator,
• Inspecting for and applying sealant (2) For operations conducted under a 14
the FAA proposes to amend 14 CFR part CFR part 119 operating certificate or under
would require 1 work-hour and $30 for
39 as follows: 14 CFR part 91, subpart K, we suggest that
parts, for a cost of $115 per helicopter. you notify your principal inspector, or
Based on these costs, we expect a total PART 39—AIRWORTHINESS lacking a principal inspector, the manager of
cost of $1,423 per helicopter and DIRECTIVES the local flight standards district office or
$354,327 for the U.S. operator fleet. certificate holding district office before
■ 1. The authority citation for part 39 operating any aircraft complying with this
Authority for This Rulemaking AD through an AMOC.
continues to read as follows:
Title 49 of the United States Code
Authority: 49 U.S.C. 106(g), 40113, 44701. (g) Additional Information
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I, For service information identified in this
§ 39.13 [Amended] AD, contact Robinson Helicopter Company,
section 106, describes the authority of
the FAA Administrator. ‘‘Subtitle VII: ■ 2. The FAA amends § 39.13 by adding 2901 Airport Drive, Torrance, CA 90505;
the following new airworthiness telephone (310) 539–0508; fax (310) 539–
Aviation Programs,’’ describes in more 5198; or at http://www.robinsonheli.com/
detail the scope of the Agency’s directive (AD):
servelib.htm. You may review a copy of
authority. Robinson Helicopter Company: Docket No. information at the FAA, Office of the
We are issuing this rulemaking under FAA–2017–0682; Directorate Identifier Regional Counsel, Southwest Region, 10101
the authority described in ‘‘Subtitle VII, 2017–SW–028–AD. Hillwood Pkwy., Room 6N–321, Fort Worth,
Part A, Subpart III, Section 44701: (a) Applicability TX 76177.
General requirements.’’ Under that This AD applies to Robinson Helicopter (h) Subject
section, Congress charges the FAA with Company (Robinson) Model R66 helicopters, Joint Aircraft Service Component (JASC)
promoting safe flight of civil aircraft in serial numbers 0003 through 0752, with a tail Code: 6510, Tail Rotor Drive Shaft.
air commerce by prescribing regulations rotor drive shaft assembly part number (P/N)
for practices, methods, and procedures D224–3 or D224–4 tail rotor drive shaft Issued in Fort Worth, Texas, on March 23,
2018.
the Administrator finds necessary for assembly installed, certificated in any
safety in air commerce. This regulation category. Lance T. Gant,
is within the scope of that authority Director, Compliance & Airworthiness
(b) Unsafe Condition Division, Aircraft Certification Service.
because it addresses an unsafe condition
This AD defines the unsafe condition as [FR Doc. 2018–06449 Filed 3–29–18; 8:45 am]
that is likely to exist or develop on failure of a tail rotor driveshaft forward
products identified in this rulemaking bearing. This condition could result in failure
BILLING CODE 4910–13–P
action. of the tail rotor driveshaft and subsequent
Regulatory Findings loss of helicopter control.
DEPARTMENT OF TRANSPORTATION
We determined that this proposed AD (c) Comments Due Date
would not have federalism implications We must receive comments by May 29, Federal Aviation Administration
under Executive Order 13132. This 2018.
proposed AD would not have a 14 CFR Part 71
(d) Compliance
substantial direct effect on the States, on [Docket No. FAA–2017–0954; Airspace
You are responsible for performing each
the relationship between the national action required by this AD within the Docket No. 17–AEA–16]
Government and the States, or on the specified compliance time unless it has
distribution of power and already been accomplished prior to that time. Proposed Amendment of Class D and
responsibilities among the various Class E Airspace; Beaver Falls, PA;
levels of government. (e) Required Actions and Zelienople, PA
For the reasons discussed, I certify Within 100 hours TIS:
(1) Replace the tail rotor drive shaft AGENCY: Federal Aviation
this proposed regulation:
1. Is not a ‘‘significant regulatory forward yoke assembly with a yoke assembly Administration (FAA), DOT.
action’’ under Executive Order 12866; part number D224–5, if not previously done. ACTION: Notice of proposed rulemaking
2. Is not a ‘‘significant rule’’ under the (2) Remove the forward inspection plug (NPRM).
assembly from the tailcone and either remove
DOT Regulatory Policies and Procedures
the B322–2 cover from the top of the third SUMMARY: This action proposes to
(44 FR 11034, February 26, 1979); tailcone bay or, if an antenna is installed,
3. Will not affect intrastate aviation in amend Class E airspace extending
remove the antenna and pull the circuit upward from 700 feet or more above the
Alaska to the extent that it justifies breaker.
making a regulatory distinction; and surface, at Beaver Falls, PA, as the
(3) Visually inspect the forward and aft University of Pittsburg Medical Center
4. Will not have a significant sides of the hanger bearing and damper
economic impact, positive or negative, bearing for sealant along the junction of the
Beaver Valley Heliport has closed, and
on a substantial number of small entities seal and bearing outer race. If the sealant is controlled airspace is no longer
under the criteria of the Regulatory less than 0.5 inch in length, clean the area required. The geographic coordinates of
Flexibility Act. and apply a minimum 0.5 inch long bead of the Ellwood City VORTAC, noted in the
We prepared an economic evaluation polysulfide fuel-resistant sealant at the Beaver County Airport, Beaver Falls,
amozie on DSK30RV082PROD with PROPOSALS

of the estimated costs to comply with junction of the seal and bearing outer race. PA, description, also would be amended
this proposed AD and placed it in the (f) Alternative Methods of Compliance in the associated Class E airspace. Also,
AD docket. (AMOC) the term Airport Facility Directory
(1) The Manager, Los Angeles ACO Branch,
would be replaced with Chart
List of Subjects in 14 CFR Part 39 Supplement. Additionally, this action
FAA, may approve AMOCs for this AD. Send
Air transportation, Aircraft, Aviation your proposal to: Danny Nguyen, Aerospace would amend Class E airspace
safety, Incorporation by reference, Engineer, Los Angeles ACO Branch, extending upward from 700 feet or more
Safety. Compliance & Airworthiness Division, FAA, above the surface at Zelienople

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Document Created: 2018-11-01 08:57:42
Document Modified: 2018-11-01 08:57:42

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 May 29, 2018.
Contact		Danny Nguyen, Aerospace Engineer, Los Angeles ACO Branch, Compliance & Airworthiness Division, FAA, 3960 Paramount Blvd., Lakewood, California 90712; telephone (562) 627-5247; email [email protected]
FR Citation		83 FR 13706
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

83 FR 13706 - Airworthiness Directives; Robinson Helicopter Company Helicopters

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 83, Issue 62 (March 30, 2018)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration