83_FR_60603 83 FR 60376 - Airworthiness Directives; MD Helicopters Inc. (MDHI) Helicopters

83 FR 60376 - Airworthiness Directives; MD Helicopters Inc. (MDHI) Helicopters

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 227 (November 26, 2018)

Page Range60376-60378
FR Document2018-25497

We propose to adopt a new airworthiness directive (AD) for MDHI Model 369A, 369D, 369E, 369FF, 369H, 369HE, 369HM, 369HS, 500N, and 600N helicopters. This proposed AD would require inspecting each main rotor blade (MRB) for a crack. This proposed AD is prompted by reports of cracked MRBs. The actions of this proposed AD are intended to address an unsafe condition on these helicopters.

Federal Register, Volume 83 Issue 227 (Monday, November 26, 2018)
[Federal Register Volume 83, Number 227 (Monday, November 26, 2018)]
[Proposed Rules]
[Pages 60376-60378]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-25497]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0991; Product Identifier 2017-SW-050-AD]
RIN 2120-AA64


Airworthiness Directives; MD Helicopters Inc. (MDHI) Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
MDHI Model 369A, 369D, 369E, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 
and 600N helicopters. This proposed AD would require inspecting each 
main rotor blade (MRB) for a crack. This proposed AD is prompted by 
reports of cracked MRBs. The actions of this proposed AD are intended 
to address an unsafe condition on these helicopters.

DATES: We must receive comments on this proposed AD by January 25, 
2019.

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-
0991; 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 Helicopter Technology Company, LLC service information 
identified in this proposed rule, contact Helicopter Technology 
Company, LLC, 12902 South Broadway, Los Angeles, CA 90061; telephone 
(310) 523-2750; or at www.helicoptertech.com. 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 MD Helicopters service information identified in this proposed 
rule, contact MD Helicopters, Inc., Attn: Customer Support Division, 
4555 E. McDowell Rd., Mail Stop M615, Mesa, AZ 85215-9734; telephone 1-
800-388-3378; fax 480-346-6813; or at http://www.mdhelicopters.com.

FOR FURTHER INFORMATION CONTACT: Galib Abumeri, Aviation Safety 
Engineer, Los Angeles ACO Branch, Compliance and Airworthiness 
Division, FAA, 3960 Paramount Blvd., Lakewood, California 90712; 
telephone (562) 627-5374; email [email protected].

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

[[Page 60377]]

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 MDHI Model 369A, 369D, 369E, 
369FF, 369H, 369HE, 369HM, 369HS, 500N, and 600N helicopters with a 
Helicopter Technology Company, LLC (HTC) MRB part number 369A1100, 
369D21100, 369D21102, 369D21120, 369D21121, 369D21123, 500P2100, or 
500P2300 installed. This proposed AD would require repetitively 
inspecting the MRB trim tab for gouges, nicks, scratches, and cracks.
    This proposed AD is prompted by reports of two operators finding 
cracks on an HTC-manufactured MRB. In both cases, the cracking was 
located on the MRB skin adjacent to the trim tab, and they were 
discovered following flights in which an increase in vibration levels 
was noticed. HTC determined the root cause of the cracking to be 
fatigue. HTC also stated that there was evidence of impact damage, 
filing, and sanding under the paint of the cracked MRBs. If not 
detected and corrected, this condition could result in failure of an 
MRB and subsequent loss of control of the helicopter.

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 helicopters of these same type 
designs.

Related Service Information

    We reviewed HTC Mandatory Service Bulletin Notice No. 2100-9, dated 
May 25, 2017 (SB 2100-9), which contains procedures for inspecting each 
MRB for a crack in an area adjacent to the inboard edge of the MRB trim 
tab.
    We also reviewed MD Helicopters Service Bulletin No. SB369D-221, 
SB369E-119, SB369F-106, SB369H-257, SB500N-057, and SB600N-069, each 
dated April 2, 2018. This service information specifies inspecting the 
MRBs for cracks near the trim tab by following the instructions in SB 
2100-9.

Proposed AD Requirements

    This proposed AD would require, within 25 hours time-in-service and 
thereafter at each 100-hour or annual inspection, inspecting each MRB 
trim tab end at the trailing edge corner where the trim tab and MRB 
meet for cracks, and inspecting the top and bottom surface of each MRB 
for a crack in the area adjacent to inboard trim tab the trim tab 
corner for a crack, from the trailing edge towards the leading edge. If 
there is a crack, this proposed AD would require replacing the MRB.

Differences Between This Proposed AD and the Service Information

    The service information specifies procedures for inspecting each 
MRB for nicks, gouges, and scratches. This proposed AD does not, as the 
unsafe condition concerns a crack in the MRB. This proposed AD would 
require using a 10X magnifying glass for both inspections, while the 
service information only specifies this level of magnification for the 
inspection of the top and bottom surfaces of the MRB.

Costs of Compliance

    We estimate that this proposed AD would affect 622 helicopters of 
U.S. Registry.
    At an average labor rate of $85 per work-hour, we estimate that 
operators may incur the following costs in order to comply with this 
AD. Inspecting one MRB would require about 0.1 work-hour, for a cost 
per helicopter of $43 for MDHI Model 369-series and 500N helicopters 
and $51 for MDHI Model 600N helicopters, and a total cost of $25,320 to 
U.S. operators per inspection cycle.
    If required, replacing one MRB would require 3 work-hours, and 
required parts would cost $13,000, for a cost per MRB of $13,255.

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):

MD Helicopters Inc.: Docket No. FAA-2018-0991; Product Identifier 
2017-SW-050-AD.

(a) Applicability

    This AD applies to MD Helicopters Inc. Model 369A, 369D, 369E, 
369FF, 369H, 369HE, 369HM, 369HS, 500N, and 600N helicopters, 
certificated in any category, with a main rotor blade (MRB) part 
number 369A1100, 369D21100, 369D21102, 369D21120, 369D21121, 
369D21123, 500P2100, or 500P2300, all dash numbers, installed.

(b) Unsafe Condition

    This AD defines the unsafe condition as a crack in an MRB. This 
condition could result

[[Page 60378]]

in failure of the MRB and subsequent loss of control of the 
helicopter.

(c) Comments Due Date

    We must receive comments by January 25, 2019.

(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 25 hours time-in-service, and thereafter at each 100-hour 
inspection or annual inspection, whichever occurs first:
    (1) Using a 10X or higher power magnifying glass and a light, 
inspect each MRB trim tab end at the trailing edge corner where the 
trim tab and MRB meet for a crack. If there is a crack, before 
further flight, replace the MRB.
    (2) Using a 10X or higher power magnifying glass and a light, 
inspect the top and bottom surface of each MRB adjacent to the 
inboard trim tab corner for a crack, from the trailing edge towards 
the leading edge. If there is a crack, before further flight, 
replace the MRB.

(f) Alternative Methods of Compliance (AMOC)

    (1) The Manager, Los Angeles ACO Branch, FAA, may approve AMOCs 
for this AD. Send your proposal to: Galib Abumeri, Aviation Safety 
Engineer, Los Angeles ACO Branch, Compliance and Airworthiness 
Division, FAA, 3960 Paramount Blvd., Lakewood, California 90712; 
telephone (562) 627-5374; email [email protected].
    (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

    (1) Helicopter Technology Company, LLC Mandatory Service 
Bulletin Notice No. 2100-9, dated May 25, 2017, which is not 
incorporated by reference, contains additional information about the 
subject of this AD. For Helicopter Technology Company, LLC service 
information identified in this AD, contact Helicopter Technology 
Company, LLC, 12902 South Broadway, Los Angeles, CA 90061; telephone 
(310) 523-2750; or at www.helicoptertech.com.
    (2) MD Helicopters Service Bulletin No. SB369D-221, SB369E-119, 
SB369F-106, SB369H-257, SB500N-057, and SB600N-069, each dated April 
2, 2018, which are not incorporated by reference, contain additional 
information about the subject of this AD. For MD Helicopters service 
information identified in this AD, contact MD Helicopters, Inc., 
Attn: Customer Support Division, 4555 E. McDowell Rd., Mail Stop 
M615, Mesa, AZ 85215-9734; telephone 1-800-388-3378; fax 480-346-
6813; or at http://www.mdhelicopters.com.
    (3) 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: 6210 Main Rotor 
Blade.

    Issued in Fort Worth, Texas, on November 14, 2018.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2018-25497 Filed 11-23-18; 8:45 am]
BILLING CODE 4910-13-P



     60376                Federal Register / Vol. 83, No. 227 / Monday, November 26, 2018 / Proposed Rules

     (h) Functional Check                                    SE–581 88, Linköping, Sweden; telephone              www.regulations.gov by searching for
        Within 1,500 flight hours or 12 months               +46 13 18 5591; fax +46 13 18 4874; email             and locating Docket No. FAA–2018–
     after the effective date of this AD, whichever          saab2000.techsupport@saabgroup.com;                   0991; or in person at Docket Operations
     occurs first, accomplish a functional check of          internet http://www.saabgroup.com. You
                                                                                                                   between 9 a.m. and 5 p.m., Monday
     the fuel indicator gauging accuracy and the             may view this service information at the
                                                             FAA, Transport Standards Branch, 2200                 through Friday, except Federal holidays.
     low level warning, in accordance with the                                                                     The AD docket contains this proposed
     Accomplishment Instructions of Saab Service             South 216th St., Des Moines, WA. For
     Bulletin 2000–28–028, dated April 19, 2018.             information on the availability of this               AD, the economic evaluation, any
                                                             material at the FAA, call 206–231–3195.               comments received, and other
     (i) Corrective Action                                                                                         information. The street address for
                                                               Issued in Des Moines, Washington, on
        If the functional check required by                  November 8, 2018.                                     Docket Operations (telephone 800–647–
     paragraph (h) of this AD is found to be out                                                                   5527) is in the ADDRESSES section.
     of tolerance, within the limits and under the           Chris Spangenberg,
                                                                                                                   Comments will be available in the AD
     applicable conditions, as specified in the              Acting Director, System Oversight Division,
     operator’s Minimum Equipment List, replace              Aircraft Certification Service.                       docket shortly after receipt.
     the affected part with a serviceable part, in
                                                                                                                     For Helicopter Technology Company,
                                                             [FR Doc. 2018–25495 Filed 11–23–18; 8:45 am]
     accordance with the Accomplishment                                                                            LLC service information identified in
                                                             BILLING CODE 4910–13–P
     Instructions of Saab Service Bulletin 2000–                                                                   this proposed rule, contact Helicopter
     28–028, dated April 19, 2018.                                                                                 Technology Company, LLC, 12902
     (j) Parts Installation Limitation
                                                                                                                   South Broadway, Los Angeles, CA
                                                             DEPARTMENT OF TRANSPORTATION
                                                                                                                   90061; telephone (310) 523–2750; or at
        As of the effective date of this AD, no                                                                    www.helicoptertech.com. You may
     person may install, on any airplane, an                 Federal Aviation Administration
     affected part, unless it is a serviceable part,                                                               review the referenced service
     as defined in paragraph (g)(2) of this AD.              14 CFR Part 39                                        information at the FAA, Office of the
                                                                                                                   Regional Counsel, Southwest Region,
     (k) Other FAA AD Provisions                             [Docket No. FAA–2018–0991; Product                    10101 Hillwood Pkwy., Room 6N–321,
       The following provisions also apply to this           Identifier 2017–SW–050–AD]                            Fort Worth, TX 76177.
     AD:                                                                                                             For MD Helicopters service
                                                             RIN 2120–AA64
       (1) Alternative Methods of Compliance                                                                       information identified in this proposed
     (AMOCs): The Manager, International
     Section, Transport Standards Branch, FAA,
                                                             Airworthiness Directives; MD                          rule, contact MD Helicopters, Inc., Attn:
     has the authority to approve AMOCs for this             Helicopters Inc. (MDHI) Helicopters                   Customer Support Division, 4555 E.
     AD, if requested using the procedures found                                                                   McDowell Rd., Mail Stop M615, Mesa,
                                                             AGENCY: Federal Aviation
     in 14 CFR 39.19. In accordance with 14 CFR                                                                    AZ 85215–9734; telephone 1–800–388–
                                                             Administration (FAA), DOT.
     39.19, send your request to your principal                                                                    3378; fax 480–346–6813; or at http://
     inspector or local Flight Standards District            ACTION: Notice of proposed rulemaking                 www.mdhelicopters.com.
     Office, as appropriate. If sending information          (NPRM).
     directly to the International Section, send it                                                                FOR FURTHER INFORMATION CONTACT:
     to the attention of the person identified in            SUMMARY:   We propose to adopt a new                  Galib Abumeri, Aviation Safety
     paragraph (l)(2) of this AD. Information may            airworthiness directive (AD) for MDHI                 Engineer, Los Angeles ACO Branch,
     be emailed to: 9-ANM-116-AMOC-                          Model 369A, 369D, 369E, 369FF, 369H,                  Compliance and Airworthiness
     REQUESTS@faa.gov. Before using any                      369HE, 369HM, 369HS, 500N, and 600N                   Division, FAA, 3960 Paramount Blvd.,
     approved AMOC, notify your appropriate                  helicopters. This proposed AD would                   Lakewood, California 90712; telephone
     principal inspector, or lacking a principal             require inspecting each main rotor blade              (562) 627–5374; email galib.abumeri@
     inspector, the manager of the local flight
     standards district office/certificate holding           (MRB) for a crack. This proposed AD is                faa.gov.
     district office.                                        prompted by reports of cracked MRBs.                  SUPPLEMENTARY INFORMATION:
       (2) Contacting the Manufacturer: For any              The actions of this proposed AD are
     requirement in this AD to obtain corrective             intended to address an unsafe condition               Comments Invited
     actions from a manufacturer, the action must            on these helicopters.                                    We invite you to participate in this
     be accomplished using a method approved                 DATES: We must receive comments on                    rulemaking by submitting written
     by the Manager, International Section,                                                                        comments, data, or views. We also
                                                             this proposed AD by January 25, 2019.
     Transport Standards Branch, FAA; or the
     European Aviation Safety Agency (EASA); or              ADDRESSES: You may send comments by                   invite comments relating to the
     Saab AB, Saab Aeronautics’s EASA Design                 any of the following methods:                         economic, environmental, energy, or
     Organization Approval (DOA). If approved by               • Federal eRulemaking Docket: Go to                 federalism impacts that might result
     the DOA, the approval must include the                  http://www.regulations.gov. Follow the                from adopting the proposals in this
     DOA-authorized signature.                               online instructions for sending your                  document. The most helpful comments
     (l) Related Information                                 comments electronically.                              reference a specific portion of the
        (1) Refer to Mandatory Continuing
                                                               • Fax: 202–493–2251.                                proposal, explain the reason for any
     Airworthiness Information (MCAI) EASA                     • Mail: Send comments to the U.S.                   recommended change, and include
     Airworthiness Directive 2018–0187, dated                Department of Transportation, Docket                  supporting data. To ensure the docket
     August 29, 2018, for related information.               Operations, M–30, West Building                       does not contain duplicate comments,
     This MCAI may be found in the AD docket                 Ground Floor, Room W12–140, 1200                      commenters should send only one copy
     on the internet at http://www.regulations.gov           New Jersey Avenue SE, Washington, DC                  of written comments, or if comments are
     by searching for and locating Docket No.                20590–0001.                                           filed electronically, commenters should
     FAA–2018–0964.                                            • Hand Delivery: Deliver to the                     submit only one time.
        (2) For more information about this AD,              ‘‘Mail’’ address between 9 a.m. and 5                    We will file in the docket all
     contact Shahram Daneshmandi, Aerospace                                                                        comments that we receive, as well as a
     Engineer, International Section, Transport              p.m., Monday through Friday, except
     Standards Branch, FAA, 2200 South 216th                 Federal holidays.                                     report summarizing each substantive
     St., Des Moines, WA 98198; telephone and                                                                      public contact with FAA personnel
                                                             Examining the AD Docket                               concerning this proposed rulemaking.
     fax 206–231–3220.
        (3) For service information identified in              You may examine the AD docket on                    Before acting on this proposal, we will
     this AD, contact Saab AB, Saab Aeronautics,             the internet at http://                               consider all comments we receive on or


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                          Federal Register / Vol. 83, No. 227 / Monday, November 26, 2018 / Proposed Rules                                               60377

     before the closing date for comments.                   the trim tab and MRB meet for cracks,                 Regulatory Findings
     We will consider comments filed after                   and inspecting the top and bottom                       We determined that this proposed AD
     the comment period has closed if it is                  surface of each MRB for a crack in the                would not have federalism implications
     possible to do so without incurring                     area adjacent to inboard trim tab the                 under Executive Order 13132. This
     expense or delay. We may change this                    trim tab corner for a crack, from the                 proposed AD would not have a
     proposal in light of the comments we                    trailing edge towards the leading edge.               substantial direct effect on the States, on
     receive.                                                If there is a crack, this proposed AD                 the relationship between the national
                                                             would require replacing the MRB.                      Government and the States, or on the
     Discussion
                                                             Differences Between This Proposed AD                  distribution of power and
        We propose to adopt a new AD for
                                                             and the Service Information                           responsibilities among the various
     MDHI Model 369A, 369D, 369E, 369FF,
                                                                                                                   levels of government.
     369H, 369HE, 369HM, 369HS, 500N,                          The service information specifies                     For the reasons discussed, I certify
     and 600N helicopters with a Helicopter                  procedures for inspecting each MRB for                this proposed regulation:
     Technology Company, LLC (HTC) MRB                       nicks, gouges, and scratches. This                      1. Is not a ‘‘significant regulatory
     part number 369A1100, 369D21100,                        proposed AD does not, as the unsafe                   action’’ under Executive Order 12866;
     369D21102, 369D21120, 369D21121,                        condition concerns a crack in the MRB.                  2. Is not a ‘‘significant rule’’ under the
     369D21123, 500P2100, or 500P2300                        This proposed AD would require using                  DOT Regulatory Policies and Procedures
     installed. This proposed AD would                       a 10X magnifying glass for both                       (44 FR 11034, February 26, 1979);
     require repetitively inspecting the MRB                 inspections, while the service                          3. Will not affect intrastate aviation in
     trim tab for gouges, nicks, scratches, and              information only specifies this level of              Alaska to the extent that it justifies
     cracks.                                                 magnification for the inspection of the               making a regulatory distinction; and
        This proposed AD is prompted by                      top and bottom surfaces of the MRB.                     4. Will not have a significant
     reports of two operators finding cracks                                                                       economic impact, positive or negative,
     on an HTC-manufactured MRB. In both                     Costs of Compliance                                   on a substantial number of small entities
     cases, the cracking was located on the                                                                        under the criteria of the Regulatory
                                                               We estimate that this proposed AD
     MRB skin adjacent to the trim tab, and                                                                        Flexibility Act.
                                                             would affect 622 helicopters of U.S.
     they were discovered following flights                                                                          We prepared an economic evaluation
                                                             Registry.
     in which an increase in vibration levels                                                                      of the estimated costs to comply with
     was noticed. HTC determined the root                      At an average labor rate of $85 per                 this proposed AD and placed it in the
     cause of the cracking to be fatigue. HTC                work-hour, we estimate that operators                 AD docket.
     also stated that there was evidence of                  may incur the following costs in order
                                                             to comply with this AD. Inspecting one                List of Subjects in 14 CFR Part 39
     impact damage, filing, and sanding
     under the paint of the cracked MRBs. If                 MRB would require about 0.1 work-                       Air transportation, Aircraft, Aviation
     not detected and corrected, this                        hour, for a cost per helicopter of $43 for            safety, Incorporation by reference,
     condition could result in failure of an                 MDHI Model 369-series and 500N                        Safety.
     MRB and subsequent loss of control of                   helicopters and $51 for MDHI Model
                                                             600N helicopters, and a total cost of                 The Proposed Amendment
     the helicopter.
                                                             $25,320 to U.S. operators per inspection                Accordingly, under the authority
     FAA’s Determination                                     cycle.                                                delegated to me by the Administrator,
       We are proposing this AD because we                     If required, replacing one MRB would                the FAA proposes to amend 14 CFR part
     evaluated all known relevant                            require 3 work-hours, and required parts              39 as follows:
     information and determined that an                      would cost $13,000, for a cost per MRB
     unsafe condition exists and is likely to                                                                      PART 39—AIRWORTHINESS
                                                             of $13,255.                                           DIRECTIVES
     exist or develop on other helicopters of
     these same type designs.                                Authority for This Rulemaking
                                                                                                                   ■ 1. The authority citation for part 39
     Related Service Information                                Title 49 of the United States Code                 continues to read as follows:
                                                             specifies the FAA’s authority to issue                    Authority: 49 U.S.C. 106(g), 40113, 44701.
       We reviewed HTC Mandatory Service
                                                             rules on aviation safety. Subtitle I,
     Bulletin Notice No. 2100–9, dated May                                                                         § 39.13    [Amended]
                                                             section 106, describes the authority of
     25, 2017 (SB 2100–9), which contains
                                                             the FAA Administrator. ‘‘Subtitle VII:                ■ 2. The FAA amends § 39.13 by adding
     procedures for inspecting each MRB for
                                                             Aviation Programs,’’ describes in more                the following new airworthiness
     a crack in an area adjacent to the
                                                             detail the scope of the Agency’s                      directive (AD):
     inboard edge of the MRB trim tab.
       We also reviewed MD Helicopters                       authority.                                            MD Helicopters Inc.: Docket No. FAA–
     Service Bulletin No. SB369D–221,                           We are issuing this rulemaking under                  2018–0991; Product Identifier 2017–SW–
     SB369E–119, SB369F–106, SB369H–                         the authority described in ‘‘Subtitle VII,               050–AD.
     257, SB500N–057, and SB600N–069,                        Part A, Subpart III, Section 44701:                   (a) Applicability
     each dated April 2, 2018. This service                  General requirements.’’ Under that                      This AD applies to MD Helicopters Inc.
     information specifies inspecting the                    section, Congress charges the FAA with                Model 369A, 369D, 369E, 369FF, 369H,
     MRBs for cracks near the trim tab by                    promoting safe flight of civil aircraft in            369HE, 369HM, 369HS, 500N, and 600N
     following the instructions in SB                        air commerce by prescribing regulations               helicopters, certificated in any category, with
     2100–9.                                                 for practices, methods, and procedures                a main rotor blade (MRB) part number
                                                             the Administrator finds necessary for                 369A1100, 369D21100, 369D21102,
     Proposed AD Requirements                                safety in air commerce. This regulation               369D21120, 369D21121, 369D21123,
       This proposed AD would require,                       is within the scope of that authority                 500P2100, or 500P2300, all dash numbers,
                                                                                                                   installed.
     within 25 hours time-in-service and                     because it addresses an unsafe condition
     thereafter at each 100-hour or annual                   that is likely to exist or develop on                 (b) Unsafe Condition
     inspection, inspecting each MRB trim                    products identified in this rulemaking                  This AD defines the unsafe condition as a
     tab end at the trailing edge corner where               action.                                               crack in an MRB. This condition could result



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     60378                Federal Register / Vol. 83, No. 227 / Monday, November 26, 2018 / Proposed Rules

     in failure of the MRB and subsequent loss of               (3) You may review a copy of information              FAA–2018–0256; Airspace Docket No.
     control of the helicopter.                              at the FAA, Office of the Regional Counsel,           18–AEA–11, at the beginning of your
                                                             Southwest Region, 10101 Hillwood Pkwy,                comments. You may also submit
     (c) Comments Due Date                                   Room 6N–321, Fort Worth, TX 76177.
        We must receive comments by January 25,                                                                    comments through the internet at http://
     2019.                                                   (h) Subject                                           www.regulations.gov.
                                                               Joint Aircraft Service Component (JASC)                FAA Order 7400.11C, Airspace
     (d) Compliance                                                                                                Designations and Reporting Points, and
                                                             Code: 6210 Main Rotor Blade.
       You are responsible for performing each                                                                     subsequent amendments can be viewed
     action required by this AD within the                     Issued in Fort Worth, Texas, on November
                                                             14, 2018.                                             on line at http://www.faa.gov/air_
     specified compliance time unless it has                                                                       traffic/publications/. For further
     already been accomplished prior to that time.           Lance T. Gant,
                                                                                                                   information, you can contact the
                                                             Director, Compliance & Airworthiness
     (e) Required Actions                                                                                          Airspace Policy Group, Federal Aviation
                                                             Division, Aircraft Certification Service.
        Within 25 hours time-in-service, and                                                                       Administration, 800 Independence
                                                             [FR Doc. 2018–25497 Filed 11–23–18; 8:45 am]
     thereafter at each 100-hour inspection or                                                                     Avenue SW, Washington, DC 20591;
     annual inspection, whichever occurs first:              BILLING CODE 4910–13–P
                                                                                                                   telephone: (202) 267–8783. The Order is
        (1) Using a 10X or higher power                                                                            also available for inspection at the
     magnifying glass and a light, inspect each                                                                    National Archives and Records
     MRB trim tab end at the trailing edge corner            DEPARTMENT OF TRANSPORTATION
     where the trim tab and MRB meet for a crack.
                                                                                                                   Administration (NARA). For
     If there is a crack, before further flight,             Federal Aviation Administration                       information on the availability of FAA
     replace the MRB.                                                                                              Order 7400.11C at NARA, call (202)
        (2) Using a 10X or higher power                      14 CFR Part 71                                        741–6030, or go to https://
     magnifying glass and a light, inspect the top                                                                 www.archives.gov/federal-register/cfr/
     and bottom surface of each MRB adjacent to              [Docket No. FAA–2018–0256; Airspace                   ibr-locations.html.
     the inboard trim tab corner for a crack, from           Docket No. 18–AEA–11]                                    FAA Order 7400.11, Airspace
     the trailing edge towards the leading edge. If                                                                Designations and Reporting Points, is
     there is a crack, before further flight, replace        RIN 2120–AA66
     the MRB.
                                                                                                                   published yearly and effective on
                                                             Proposed Amendment of Class D                         September 15.
     (f) Alternative Methods of Compliance                                                                         FOR FURTHER INFORMATION CONTACT: John
     (AMOC)
                                                             Airspace and Class E Airspace;
                                                             Schenectady, NY, Ithaca, NY, and                      Fornito, Operations Support Group,
        (1) The Manager, Los Angeles ACO Branch,             Albany, NY                                            Eastern Service Center, Federal Aviation
     FAA, may approve AMOCs for this AD. Send
                                                                                                                   Administration, 1701 Columbia Ave,
     your proposal to: Galib Abumeri, Aviation               AGENCY: Federal Aviation
     Safety Engineer, Los Angeles ACO Branch,                                                                      College Park, GA 30337; telephone (404)
                                                             Administration (FAA), DOT.                            305–6364.
     Compliance and Airworthiness Division,
     FAA, 3960 Paramount Blvd., Lakewood,                    ACTION: Notice of proposed rulemaking                 SUPPLEMENTARY INFORMATION:
     California 90712; telephone (562) 627–5374;             (NPRM).
     email 9-ANM-LAACO-AMOC-REQUESTS@                                                                              Authority for This Rulemaking
     faa.gov.                                                SUMMARY:   This action proposes to
                                                                                                                     The FAA’s authority to issue rules
        (2) For operations conducted under a 14              amend Class D airspace, Class E
                                                                                                                   regarding aviation safety is found in
     CFR part 119 operating certificate or under             airspace designated as an extension to a
     14 CFR part 91, subpart K, we suggest that                                                                    Title 49 of the United States Code.
                                                             Class D surface area, and Class E
     you notify your principal inspector, or                                                                       Subtitle I, Section 106 describes the
                                                             airspace extending upward from 700
     lacking a principal inspector, the manager of                                                                 authority of the FAA Administrator.
                                                             feet or more above the surface at
     the local flight standards district office or                                                                 Subtitle VII, Aviation Programs,
                                                             Schenectady County Airport,
     certificate holding district office before                                                                    describes in more detail the scope of the
     operating any aircraft complying with this              Schenectady, NY, and Albany, NY by
                                                                                                                   agency’s authority. This rulemaking is
     AD through an AMOC.                                     updating the geographic coordinates of
                                                                                                                   promulgated under the authority
                                                             this airport, Saratoga County Airport,
     (g) Additional Information                                                                                    described in Subtitle VII, Part A,
                                                             Hunter NDB, and Cambridge VORTAC.
        (1) Helicopter Technology Company, LLC                                                                     Subpart I, Section 40103. Under that
                                                             Controlled airspace is necessary for the
     Mandatory Service Bulletin Notice No. 2100–                                                                   section, the FAA is charged with
                                                             safety and management of instrument
     9, dated May 25, 2017, which is not                                                                           prescribing regulations to assign the use
                                                             flight rules (IFR) operations at this
     incorporated by reference, contains                                                                           of airspace necessary to ensure the
     additional information about the subject of             airport. This action also would replace
                                                                                                                   safety of aircraft and the efficient use of
     this AD. For Helicopter Technology                      the outdated term Airport/Facility
                                                                                                                   airspace. This regulation is within the
     Company, LLC service information identified             Directory with the term Chart
                                                                                                                   scope of that authority as it would
     in this AD, contact Helicopter Technology               Supplement in the legal descriptions of
                                                                                                                   amend Class D and Class E airspace at
     Company, LLC, 12902 South Broadway, Los                 associated Class D and E airspace of
     Angeles, CA 90061; telephone (310) 523–                                                                       Schenectady County Airport,
                                                             Schenectady County Airport,
     2750; or at www.helicoptertech.com.                                                                           Schenectady, NY and Ithaca Tompkins
                                                             Schenectady, NY, and Ithaca Tompkins
        (2) MD Helicopters Service Bulletin No.                                                                    Regional Airport, Ithaca, NY, to support
                                                             Regional Airport, Ithaca, NY.
     SB369D–221, SB369E–119, SB369F–106,                                                                           IFR operations at these airports.
     SB369H–257, SB500N–057, and SB600N–                     DATES: Comments must be received on
     069, each dated April 2, 2018, which are not            or before January 10, 2019.                           Comments Invited
     incorporated by reference, contain additional           ADDRESSES: Send comments on this                        Interested persons are invited to
     information about the subject of this AD. For           proposal to: U.S. Department of                       comment on this proposed rulemaking
     MD Helicopters service information
                                                             Transportation, Docket Operations, 1200               by submitting such written data, views,
     identified in this AD, contact MD
     Helicopters, Inc., Attn: Customer Support               New Jersey Avenue SE, West Building                   or arguments, as they may desire.
     Division, 4555 E. McDowell Rd., Mail Stop               Ground Floor, Room W12–140,                           Comments that provide the factual basis
     M615, Mesa, AZ 85215–9734; telephone 1–                 Washington, DC 20590; Telephone:                      supporting the views and suggestions
     800–388–3378; fax 480–346–6813; or at                   (800) 647–5527, or (202) 366–9826. You                presented are particularly helpful in
     http://www.mdhelicopters.com.                           must identify the Docket No.                          developing reasoned regulatory


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Document Created: 2018-11-24 00:52:20
Document Modified: 2018-11-24 00:52:20
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by January 25, 2019.
ContactGalib Abumeri, Aviation Safety Engineer, Los Angeles ACO Branch, Compliance and Airworthiness Division, FAA, 3960 Paramount Blvd., Lakewood, California 90712; telephone (562) 627-5374; email [email protected]
FR Citation83 FR 60376 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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