80_FR_65334 80 FR 65128 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

80 FR 65128 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 80, Issue 206 (October 26, 2015)

Page Range65128-65130
FR Document2015-26949

We are publishing a new airworthiness directive (AD) for Sikorsky Aircraft Corporation Model S-76A, S-76B, S-76C, and S-76D helicopters, which was sent previously to all known U.S. owners and operators of these helicopters. This AD requires inspecting the main rotor (M/R) and tail rotor (T/R) pushrod assemblies and the jamnuts, and applying slippage marks across the pushrod tubes and jamnuts. This AD is prompted by an accident of a Sikorsky Aircraft Corporation Model S-76C helicopter. During preliminary investigation, a failed pushrod assembly was identified. These actions are intended to prevent loss of M/R or T/R flight control and subsequent loss of control of the helicopter.

Federal Register, Volume 80 Issue 206 (Monday, October 26, 2015)
[Federal Register Volume 80, Number 206 (Monday, October 26, 2015)]
[Rules and Regulations]
[Pages 65128-65130]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-26949]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-3940; Directorate Identifier 2015-SW-065-AD; 
Amendment 39-18300; AD 2015-19-51]
RIN 2120-AA64


Airworthiness Directives; Sikorsky Aircraft Corporation 
Helicopters

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule; request for comments.

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

SUMMARY: We are publishing a new airworthiness directive (AD) for 
Sikorsky Aircraft Corporation Model S-76A, S-76B, S-76C, and S-76D 
helicopters, which was sent previously to all known U.S. owners and 
operators of these helicopters. This AD requires inspecting the main 
rotor (M/R) and tail rotor (T/R) pushrod assemblies and the jamnuts, 
and applying slippage marks across the pushrod tubes and jamnuts. This 
AD is prompted by an accident of a Sikorsky Aircraft Corporation Model 
S-76C helicopter. During preliminary investigation, a failed pushrod 
assembly was identified. These actions are intended to prevent loss of 
M/R or T/R flight control and subsequent loss of control of the 
helicopter.

DATES: This AD becomes effective November 10, 2015 to all persons 
except those persons to whom it was made immediately effective by 
Emergency AD 2015-19-51, issued on September 14, 2015, which contains 
the requirements of this AD.
    We must receive comments on this AD by December 28, 2015.

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-2015-
3940; or in person at the Docket Operations Office between 9 a.m. and 5 
p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this AD, the European Aviation Safety Agency (EASA) AD, the 
economic evaluation, any comments received, and other information. The 
street address for the Docket Operations Office (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 AD, contact Sikorsky 
Aircraft Corporation, Customer Service Engineering, 124 Quarry Road, 
Trumbull, CT 06611; telephone 1-800-Winged-S or 203-416-4299; email 
[email protected]. 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: Blaine Williams, Aerospace Engineer, 
Boston Aircraft Certification Office, Engine & Propeller Directorate, 
12 New England Executive Park, Burlington, Massachusetts 01803; 
telephone (781) 238-7161; email [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety, and we did not provide you with notice and an opportunity to 
provide your comments prior to it becoming effective. However, 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 resulted 
from adopting this AD. The most helpful comments reference a specific 
portion of the AD, 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

[[Page 65129]]

submit them 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 rulemaking during the 
comment period. We will consider all the comments we receive and may 
conduct additional rulemaking based on those comments.

Discussion

    On September 14, 2015, we issued Emergency AD 2015-19-51 for 
Sikorsky Aircraft Corporation Model S-76A, S-76B, S-76C, and S-76D 
helicopters with M/R servo input control pushrod (pushrod) assembly 
part number (P/N) 76400-00034-059 or T/R pushrod assembly P/N 76400-
00014-071 installed. Emergency AD 2015-19-51 requires inspecting the M/
R forward, aft, and lateral pushrod assemblies, the T/R pushrod 
assembly, and the jamnuts, and applying slippage marks across the 
pushrod tubes and jamnuts. Emergency AD 2015-19-51 was sent previously 
to all known U.S. owners and operators of these helicopters and was 
prompted by an accident of a Sikorsky Aircraft Corporation Model S-76C 
helicopter in which a failed pushrod assembly was identified during 
preliminary investigation. Separation of the pushrod tube and the 
control rod end with bearing was found.

FAA's Determination

    We are issuing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop on other helicopters of these same type 
designs.

Related Service Information

    Sikorsky issued Alert Service Bulletin No. 76-67-57, Basic Issue, 
dated September 10, 2015 (ASB), which specifies a one-time inspection 
of the M/R forward, aft, and lateral pushrod assemblies, the T/R 
pushrod assembly, and the jamnuts for proper installation, condition, 
and security. If a pushrod or jamnut does not meet criteria specified 
in the inspection, the ASB specifies replacing the assembly. The ASB 
also specifies applying two slippage marks across each M/R and T/R 
pushrod tube and jamnut. Further, the ASB references the applicable 
maintenance manual for a new recurring inspection of the slippage 
marks.

AD Requirements

    This AD requires, within five hours time-in-service (TIS), 
inspecting each M/R and T/R pushrod assembly by inspecting the position 
of the control rod end in the pushrod tube. If the lockwire passes 
through the inspection hole, this AD requires replacing the pushrod 
assembly. If the lockwire does not pass through the inspection hole, 
this AD requires inspecting the jamnut to determine seating position 
against the pushrod and whether the jamnut can be turned with finger 
pressure. If the jamnut is not seated against the pushrod or is loose, 
this AD requires replacing the pushrod assembly. This AD also requires, 
both for those pushrod assemblies that are replaced and for those that 
pass the inspections, applying two slippage marks across each M/R and 
T/R pushrod tube and jamnut.

Interim Action

    We consider this AD to be an interim action as the accident 
investigation is ongoing. If additional action is later identified, we 
might consider further rulemaking.

Costs of Compliance

    We estimate that this AD affects 198 helicopters of U.S. Registry. 
We estimate that operators may incur the following costs in order to 
comply with this AD at an average labor rate of $85 per work-hour. It 
takes about 1 work-hour to inspect the pushrod assemblies and jamnut 
for a cost of $85 per helicopter and $16,830 for the U.S. fleet. It 
takes a minimal amount of time to apply the slippage marks for a 
negligible cost. Replacing a pushrod assembly takes about 1.5 work-
hours for a labor cost of $128. Parts for an M/R pushrod assembly cost 
$2,411 for a total replacement cost of $2,539. Parts for a T/R pushrod 
assembly cost $1,905 for a total replacement cost of $2,033.

FAA's Justification and Determination of the Effective Date

    Providing an opportunity for public comments prior to adopting 
these AD requirements would delay implementing the safety actions 
needed to correct this known unsafe condition. Therefore, we found and 
continue to find that the risk to the flying public justifies waiving 
notice and comment prior to the adoption of this rule because the 
previously described unsafe condition can adversely affect the 
controllability of the helicopter and the initial required action must 
be accomplished within five hours TIS.
    Since it was found that immediate corrective action was required, 
notice and opportunity for prior public comment before issuing this AD 
were impracticable and contrary to public interest and good cause 
existed to make the AD effective immediately by Emergency AD 2015-19-
51, issued on September 14, 2015, to all known U.S. owners and 
operators of these helicopters. These conditions still exist and the AD 
is hereby published in the Federal Register as an amendment to section 
39.13 of the Federal Aviation Regulations (14 CFR 39.13) to make it 
effective to all persons.

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 AD will not have federalism implications 
under Executive Order 13132. This AD will not have a substantial direct 
effect on the States, on the relationship between the national 
Government and the States, or on the distribution of power and 
responsibilities among the various levels of government.
    For the reasons discussed, I certify that this AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska 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 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.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator,

[[Page 65130]]

the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

    2015-19-51 Sikorsky Aircraft Corporation: Amendment 39-18300; 
Docket No. FAA-2015-3940; Directorate Identifier 2015-SW-065-AD.

(a) Applicability

    This AD applies to Model S-76A, S-76B, S-76C, and S-76D 
helicopters with main rotor (M/R) servo input control pushrod 
(pushrod) assembly part number (P/N) 76400-00034-059 or tail rotor 
(T/R) pushrod assembly P/N 76400-00014-071 installed, certificated 
in any category.

(b) Unsafe Condition

    This AD defines the unsafe condition as a loose jamnut. This 
condition could result in failure of a pushrod assembly, loss of M/R 
or T/R flight control, and subsequent loss of control of the 
helicopter.

(c) Effective Date

    This AD becomes effective November 10, 2015 to all persons 
except those persons to whom it was made immediately effective by 
Emergency AD 2015-19-51, issued on September 14, 2015, which 
contains the requirements of this AD.

(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 five hours time-in-service:
    (1) Inspect each pushrod end to determine whether a 0.020 inch 
diameter lockwire can pass through the inspection hole.
    (i) If the lockwire passes through the inspection hole, replace 
the pushrod assembly.
    (ii) If the lockwire does not pass through the inspection hole, 
inspect the jamnut to determine whether it is seated against the 
pushrod and whether it can be turned with finger pressure. If the 
jamnut is not seated against the pushrod or can be turned with 
finger pressure, replace the pushrod assembly.
    (2) Apply two slippage marks across each pushrod tube and jamnut 
as follows:
    (i) Clean the area where a slippage mark is to be applied.
    (ii) Apply two slippage marks across the pushrod tube and 
jamnut, parallel and on opposite sides of each other. Each slippage 
mark must extend at least 0.5 inch onto the pushrod tube and must 
not cover the inspection hole. Figures 2 and 4 of Sikorsky Alert 
Service Bulletin No. 76-67-57, Basic Issue, dated September 10, 
2015, illustrate slippage marks across a pushrod tube and jamnut.

(f) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Boston Aircraft Certification Office, FAA, may 
approve AMOCs for this AD. Send your proposal to: Blaine Williams, 
Aerospace Engineer, Boston Aircraft Certification Office, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, 
Massachusetts 01803; telephone (781) 238-7161; 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

    Sikorsky Alert Service Bulletin No. 76-67-57, Basic Issue, dated 
September 10, 2015, which is not incorporated by reference, contains 
additional information about the subject of this AD. For service 
information identified in this AD, contact Sikorsky Aircraft 
Corporation, Customer Service Engineering, 124 Quarry Road, 
Trumbull, CT 06611; telephone 1-800-Winged-S or 203-416-4299; email 
[email protected]. You may review a copy of the service 
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: 2700, Flight 
Control System.

    Issued in Fort Worth, Texas, on October 9, 2015.
Lance T. Gant,
Manager, Rotorcraft Directorate, Aircraft Certification Service.
[FR Doc. 2015-26949 Filed 10-23-15; 8:45 am]
 BILLING CODE 4910-13-P



                                                  65128            Federal Register / Vol. 80, No. 206 / Monday, October 26, 2015 / Rules and Regulations

                                                  (h) Revision of Maintenance or Inspection                 Issued in Renton, Washington, on October            Avenue SE., Washington, DC 20590–
                                                  Program                                                 11, 2015.                                             0001.
                                                    Within 30 days after installing the bonding           Jeffrey E. Duven,                                       • Hand Delivery: Deliver to the
                                                  provisions and anti-spray cover specified in            Manager, Transport Airplane Directorate,              ‘‘Mail’’ address between 9 a.m. and 5
                                                  paragraph (g) of this AD: Revise the airplane           Aircraft Certification Service.                       p.m., Monday through Friday, except
                                                  maintenance or inspection program, as                   [FR Doc. 2015–26612 Filed 10–23–15; 8:45 am]          Federal holidays.
                                                  applicable, by incorporating fuel                       BILLING CODE 4910–13–P
                                                  airworthiness limitation items and Critical                                                                   Examining the AD Docket
                                                  Design Configuration Control Limitations                                                                         You may examine the AD docket on
                                                  (CDCCLs), using a method approved by the                DEPARTMENT OF TRANSPORTATION                          the Internet at http://
                                                  Manager, International Branch, ANM–116,                                                                       www.regulations.gov by searching for
                                                  Transport Airplane Directorate, FAA.                    Federal Aviation Administration                       and locating Docket No. FAA–2015–
                                                  (i) No Alternative Actions, Intervals, and/or                                                                 3940; or in person at the Docket
                                                  CDCCLs                                                  14 CFR Part 39                                        Operations Office between 9 a.m. and 5
                                                     After accomplishing the revision required            [Docket No. FAA–2015–3940; Directorate                p.m., Monday through Friday, except
                                                  by paragraph (h) of this AD, no alternative             Identifier 2015–SW–065–AD; Amendment                  Federal holidays. The AD docket
                                                  actions (e.g., inspections), intervals, or              39–18300; AD 2015–19–51]                              contains this AD, the European Aviation
                                                  CDCCLs may be used unless the actions,                                                                        Safety Agency (EASA) AD, the
                                                  intervals, or CDCCLs are approved as an                 RIN 2120–AA64                                         economic evaluation, any comments
                                                  alternative method of compliance (AMOC) in                                                                    received, and other information. The
                                                                                                          Airworthiness Directives; Sikorsky
                                                  accordance with the procedures specified in                                                                   street address for the Docket Operations
                                                  paragraph (j)(1) of this AD.                            Aircraft Corporation Helicopters
                                                                                                                                                                Office (telephone 800–647–5527) is in
                                                  (j) Other FAA AD Provisions                             AGENCY:  Federal Aviation                             the ADDRESSES section. Comments will
                                                                                                          Administration (FAA), Department of                   be available in the AD docket shortly
                                                     The following provisions also apply to this
                                                                                                          Transportation (DOT).                                 after receipt.
                                                  AD:
                                                     (1) Alternative Methods of Compliance                ACTION: Final rule; request for                          For service information identified in
                                                  (AMOCs): The Manager, International                     comments.                                             this AD, contact Sikorsky Aircraft
                                                  Branch, ANM–116, Transport Airplane                                                                           Corporation, Customer Service
                                                  Directorate, FAA, has the authority to                  SUMMARY:   We are publishing a new                    Engineering, 124 Quarry Road,
                                                  approve AMOCs for this AD, if requested                 airworthiness directive (AD) for                      Trumbull, CT 06611; telephone 1–800–
                                                  using the procedures found in 14 CFR 39.19.             Sikorsky Aircraft Corporation Model S–                Winged–S or 203–416–4299; email
                                                  In accordance with 14 CFR 39.19, send your              76A, S–76B, S–76C, and S–76D                          sikorskywcs@sikorsky.com. You may
                                                  request to your principal inspector or local            helicopters, which was sent previously                review the referenced service
                                                  Flight Standards District Office, as                    to all known U.S. owners and operators                information at the FAA, Office of the
                                                  appropriate. If sending information directly            of these helicopters. This AD requires                Regional Counsel, Southwest Region,
                                                  to the International Branch, send it to ATTN:           inspecting the main rotor (M/R) and tail              10101 Hillwood Pkwy, Room 6N–321,
                                                  Tom Rodriguez, Aerospace Engineer,                      rotor (T/R) pushrod assemblies and the                Fort Worth, TX 76177.
                                                  International Branch; ANM–116, Transport                jamnuts, and applying slippage marks                  FOR FURTHER INFORMATION CONTACT:
                                                  Airplane Directorate, FAA, 1601 Lind                    across the pushrod tubes and jamnuts.
                                                  Avenue SW., Renton, WA 98057–3356;
                                                                                                                                                                Blaine Williams, Aerospace Engineer,
                                                                                                          This AD is prompted by an accident of                 Boston Aircraft Certification Office,
                                                  telephone 425–227–1137; fax 425–227–1137.
                                                                                                          a Sikorsky Aircraft Corporation Model                 Engine & Propeller Directorate, 12 New
                                                  Information may be emailed to: 9-ANM-116-
                                                  AMOC-REQUESTS@faa.gov. Before using
                                                                                                          S–76C helicopter. During preliminary                  England Executive Park, Burlington,
                                                  any approved AMOC, notify your appropriate              investigation, a failed pushrod assembly              Massachusetts 01803; telephone (781)
                                                  principal inspector, or lacking a principal             was identified. These actions are                     238–7161; email blaine.williams@
                                                  inspector, the manager of the local flight              intended to prevent loss of M/R or T/R                faa.gov.
                                                  standards district office/certificate holding           flight control and subsequent loss of
                                                                                                                                                                SUPPLEMENTARY INFORMATION:
                                                  district office. The AMOC approval letter               control of the helicopter.
                                                  must specifically reference this AD.                    DATES: This AD becomes effective                      Comments Invited
                                                     (2) Contacting the Manufacturer: For any             November 10, 2015 to all persons except                  This AD is a final rule that involves
                                                  requirement in this AD to obtain corrective             those persons to whom it was made                     requirements affecting flight safety, and
                                                  actions from a manufacturer, the action must            immediately effective by Emergency AD
                                                  be accomplished using a method approved
                                                                                                                                                                we did not provide you with notice and
                                                                                                          2015–19–51, issued on September 14,                   an opportunity to provide your
                                                  by the Manager, International Branch, ANM–
                                                                                                          2015, which contains the requirements                 comments prior to it becoming effective.
                                                  116, Transport Airplane Directorate, FAA; or
                                                  the EASA; or Fokker Services B.V.’s EASA
                                                                                                          of this AD.                                           However, we invite you to participate in
                                                  Design Organization Approval (DOA). If                     We must receive comments on this                   this rulemaking by submitting written
                                                  approved by the DOA, the approval must                  AD by December 28, 2015.                              comments, data, or views. We also
                                                  include the DOA-authorized signature.                   ADDRESSES: You may send comments by                   invite comments relating to the
                                                                                                          any of the following methods:                         economic, environmental, energy, or
                                                  (k) Related Information
                                                                                                             • Federal eRulemaking Docket: Go to                federalism impacts that resulted from
                                                    Refer to Mandatory Continuing                         http://www.regulations.gov. Follow the                adopting this AD. The most helpful
asabaliauskas on DSK5VPTVN1PROD with RULES




                                                  Airworthiness Information (MCAI) EASA                   online instructions for sending your                  comments reference a specific portion of
                                                  Airworthiness Directive 2014–0099, dated                comments electronically.                              the AD, explain the reason for any
                                                  April 30, 2014, for related information. This
                                                                                                             • Fax: 202–493–2251.                               recommended change, and include
                                                  MCAI may be found in the AD docket on the
                                                  Internet at http://www.regulations.gov/
                                                                                                             • Mail: Send comments to the U.S.                  supporting data. To ensure the docket
                                                  #!documentDetail;D=FAA-2015-0933-0003.                  Department of Transportation, Docket                  does not contain duplicate comments,
                                                                                                          Operations,                                           commenters should send only one copy
                                                  (l) Material Incorporated by Reference                  M–30, West Building Ground Floor,                     of written comments, or if comments are
                                                     None.                                                Room W12–140, 1200 New Jersey                         filed electronically, commenters should


                                             VerDate Sep<11>2014   17:27 Oct 23, 2015   Jkt 238001   PO 00000   Frm 00008   Fmt 4700   Sfmt 4700   E:\FR\FM\26OCR1.SGM   26OCR1


                                                                   Federal Register / Vol. 80, No. 206 / Monday, October 26, 2015 / Rules and Regulations                                          65129

                                                  submit them only one time. We will file                 lockwire passes through the inspection                owners and operators of these
                                                  in the docket all comments that we                      hole, this AD requires replacing the                  helicopters. These conditions still exist
                                                  receive, as well as a report summarizing                pushrod assembly. If the lockwire does                and the AD is hereby published in the
                                                  each substantive public contact with                    not pass through the inspection hole,                 Federal Register as an amendment to
                                                  FAA personnel concerning this                           this AD requires inspecting the jamnut                section 39.13 of the Federal Aviation
                                                  rulemaking during the comment period.                   to determine seating position against the             Regulations (14 CFR 39.13) to make it
                                                  We will consider all the comments we                    pushrod and whether the jamnut can be                 effective to all persons.
                                                  receive and may conduct additional                      turned with finger pressure. If the
                                                                                                                                                                Authority for This Rulemaking
                                                  rulemaking based on those comments.                     jamnut is not seated against the pushrod
                                                                                                          or is loose, this AD requires replacing                  Title 49 of the United States Code
                                                  Discussion                                              the pushrod assembly. This AD also                    specifies the FAA’s authority to issue
                                                     On September 14, 2015, we issued                     requires, both for those pushrod                      rules on aviation safety. Subtitle I,
                                                  Emergency AD 2015–19–51 for Sikorsky                    assemblies that are replaced and for                  section 106, describes the authority of
                                                  Aircraft Corporation Model S–76A, S–                    those that pass the inspections, applying             the FAA Administrator. ‘‘Subtitle VII:
                                                  76B, S–76C, and S–76D helicopters with                  two slippage marks across each M/R and                Aviation Programs,’’ describes in more
                                                  M/R servo input control pushrod                         T/R pushrod tube and jamnut.                          detail the scope of the Agency’s
                                                  (pushrod) assembly part number (P/N)                                                                          authority.
                                                  76400–00034–059 or T/R pushrod                          Interim Action                                           We are issuing this rulemaking under
                                                  assembly P/N 76400–00014–071                              We consider this AD to be an interim                the authority described in ‘‘Subtitle VII,
                                                  installed. Emergency AD 2015–19–51                      action as the accident investigation is               Part A, Subpart III, Section 44701:
                                                  requires inspecting the M/R forward, aft,               ongoing. If additional action is later                General requirements.’’ Under that
                                                  and lateral pushrod assemblies, the T/R                 identified, we might consider further                 section, Congress charges the FAA with
                                                  pushrod assembly, and the jamnuts, and                  rulemaking.                                           promoting safe flight of civil aircraft in
                                                  applying slippage marks across the                                                                            air commerce by prescribing regulations
                                                                                                          Costs of Compliance                                   for practices, methods, and procedures
                                                  pushrod tubes and jamnuts. Emergency
                                                  AD 2015–19–51 was sent previously to                       We estimate that this AD affects 198               the Administrator finds necessary for
                                                  all known U.S. owners and operators of                  helicopters of U.S. Registry. We estimate             safety in air commerce. This regulation
                                                  these helicopters and was prompted by                   that operators may incur the following                is within the scope of that authority
                                                  an accident of a Sikorsky Aircraft                      costs in order to comply with this AD                 because it addresses an unsafe condition
                                                  Corporation Model S–76C helicopter in                   at an average labor rate of $85 per work-             that is likely to exist or develop on
                                                  which a failed pushrod assembly was                     hour. It takes about 1 work-hour to                   products identified in this rulemaking
                                                  identified during preliminary                           inspect the pushrod assemblies and                    action.
                                                  investigation. Separation of the pushrod                jamnut for a cost of $85 per helicopter               Regulatory Findings
                                                  tube and the control rod end with                       and $16,830 for the U.S. fleet. It takes
                                                                                                          a minimal amount of time to apply the                   We determined that this AD will not
                                                  bearing was found.                                                                                            have federalism implications under
                                                                                                          slippage marks for a negligible cost.
                                                  FAA’s Determination                                     Replacing a pushrod assembly takes                    Executive Order 13132. This AD will
                                                    We are issuing this AD because we                     about 1.5 work-hours for a labor cost of              not have a substantial direct effect on
                                                  evaluated all the relevant information                  $128. Parts for an M/R pushrod                        the States, on the relationship between
                                                  and determined the unsafe condition                     assembly cost $2,411 for a total                      the national Government and the States,
                                                  described previously is likely to exist or              replacement cost of $2,539. Parts for a               or on the distribution of power and
                                                  develop on other helicopters of these                   T/R pushrod assembly cost $1,905 for a                responsibilities among the various
                                                  same type designs.                                      total replacement cost of $2,033.                     levels of government.
                                                                                                                                                                  For the reasons discussed, I certify
                                                  Related Service Information                             FAA’s Justification and Determination                 that this AD:
                                                     Sikorsky issued Alert Service Bulletin               of the Effective Date                                   1. Is not a ‘‘significant regulatory
                                                  No. 76–67–57, Basic Issue, dated                           Providing an opportunity for public                action’’ under Executive Order 12866;
                                                                                                          comments prior to adopting these AD                     2. Is not a ‘‘significant rule’’ under
                                                  September 10, 2015 (ASB), which
                                                                                                          requirements would delay                              DOT Regulatory Policies and Procedures
                                                  specifies a one-time inspection of the
                                                                                                          implementing the safety actions needed                (44 FR 11034, February 26, 1979);
                                                  M/R forward, aft, and lateral pushrod                                                                           3. Will not affect intrastate aviation in
                                                  assemblies, the T/R pushrod assembly,                   to correct this known unsafe condition.
                                                                                                                                                                Alaska to the extent that it justifies
                                                  and the jamnuts for proper installation,                Therefore, we found and continue to
                                                                                                                                                                making a regulatory distinction; and
                                                  condition, and security. If a pushrod or                find that the risk to the flying public                 4. Will not have a significant
                                                  jamnut does not meet criteria specified                 justifies waiving notice and comment                  economic impact, positive or negative,
                                                  in the inspection, the ASB specifies                    prior to the adoption of this rule                    on a substantial number of small entities
                                                  replacing the assembly. The ASB also                    because the previously described unsafe               under the criteria of the Regulatory
                                                  specifies applying two slippage marks                   condition can adversely affect the                    Flexibility Act.
                                                  across each M/R and T/R pushrod tube                    controllability of the helicopter and the               We prepared an economic evaluation
                                                  and jamnut. Further, the ASB references                 initial required action must be                       of the estimated costs to comply with
                                                  the applicable maintenance manual for                   accomplished within five hours TIS.                   this AD and placed it in the AD docket.
                                                  a new recurring inspection of the                          Since it was found that immediate
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                                                  slippage marks.                                         corrective action was required, notice                List of Subjects in 14 CFR Part 39
                                                                                                          and opportunity for prior public                        Air transportation, Aircraft, Aviation
                                                  AD Requirements                                         comment before issuing this AD were                   safety, Incorporation by reference,
                                                    This AD requires, within five hours                   impracticable and contrary to public                  Safety.
                                                  time-in-service (TIS), inspecting each                  interest and good cause existed to make
                                                  M/R and T/R pushrod assembly by                         the AD effective immediately by                       Adoption of the Amendment
                                                  inspecting the position of the control                  Emergency AD 2015–19–51, issued on                      Accordingly, under the authority
                                                  rod end in the pushrod tube. If the                     September 14, 2015, to all known U.S.                 delegated to me by the Administrator,


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                                                  65130            Federal Register / Vol. 80, No. 206 / Monday, October 26, 2015 / Rules and Regulations

                                                  the FAA amends 14 CFR part 39 as                        Alert Service Bulletin No. 76–67–57, Basic            SUMMARY:    We are superseding
                                                  follows:                                                Issue, dated September 10, 2015, illustrate           Airworthiness Directive (AD) 2015–19–
                                                                                                          slippage marks across a pushrod tube and              03 for all The Boeing Company Model
                                                  PART 39—AIRWORTHINESS                                   jamnut.
                                                                                                                                                                737–600, –700, –700C, –800, –900, and
                                                  DIRECTIVES                                              (f) Alternative Methods of Compliance                 –900ER series airplanes. AD 2015–19–
                                                                                                          (AMOCs)                                               03 required revising the maintenance or
                                                  ■ 1. The authority citation for part 39
                                                                                                             (1) The Manager, Boston Aircraft                   inspection program to include new
                                                  continues to read as follows:
                                                                                                          Certification Office, FAA, may approve                airworthiness limitations. This AD
                                                      Authority: 49 U.S.C. 106(g), 40113, 44701.          AMOCs for this AD. Send your proposal to:             continues to require a maintenance or
                                                                                                          Blaine Williams, Aerospace Engineer, Boston           inspection program revision, but with
                                                  § 39.13   [Amended]                                     Aircraft Certification Office, Engine &               revised language. This AD was
                                                  ■ 2. The FAA amends § 39.13 by adding                   Propeller Directorate, 12 New England
                                                                                                                                                                prompted by a determination that
                                                  the following new airworthiness                         Executive Park, Burlington, Massachusetts
                                                                                                          01803; telephone (781) 238–7161; email                certain language in the airworthiness
                                                  directive (AD):                                                                                               limitation was not accurate in AD 2015–
                                                                                                          blaine.williams@faa.gov.
                                                    2015–19–51 Sikorsky Aircraft                             (2) For operations conducted under a 14            19–03. We are issuing this AD to detect
                                                  Corporation: Amendment 39–18300; Docket                 CFR part 119 operating certificate or under           and correct latent failures of the fuel
                                                  No. FAA–2015–3940; Directorate Identifier               14 CFR part 91, subpart K, we suggest that            shutoff valve to the engine, which could
                                                  2015–SW–065–AD.                                         you notify your principal inspector, or               result in the inability to shut off fuel to
                                                  (a) Applicability                                       lacking a principal inspector, the manager of         the engine and, in case of certain engine
                                                                                                          the local flight standards district office or         fires, an uncontrollable fire that could
                                                    This AD applies to Model S–76A, S–76B,                certificate holding district office, before
                                                  S–76C, and S–76D helicopters with main                                                                        lead to wing failure.
                                                                                                          operating any aircraft complying with this
                                                  rotor (M/R) servo input control pushrod                 AD through an AMOC.                                   DATES: This AD is effective October 28,
                                                  (pushrod) assembly part number (P/N)                                                                          2015.
                                                  76400–00034–059 or tail rotor (T/R) pushrod             (g) Additional Information                               We must receive any comments on
                                                  assembly P/N 76400–00014–071 installed,                    Sikorsky Alert Service Bulletin No. 76–67–         this AD by December 10, 2015.
                                                  certificated in any category.                           57, Basic Issue, dated September 10, 2015,            ADDRESSES: You may send comments,
                                                  (b) Unsafe Condition                                    which is not incorporated by reference,
                                                                                                          contains additional information about the
                                                                                                                                                                using the procedures found in 14 CFR
                                                     This AD defines the unsafe condition as a                                                                  11.43 and 11.45, by any of the following
                                                                                                          subject of this AD. For service information
                                                  loose jamnut. This condition could result in                                                                  methods:
                                                                                                          identified in this AD, contact Sikorsky
                                                  failure of a pushrod assembly, loss of M/R or
                                                                                                          Aircraft Corporation, Customer Service                   • Federal eRulemaking Portal: Go to
                                                  T/R flight control, and subsequent loss of
                                                                                                          Engineering, 124 Quarry Road, Trumbull, CT            http://www.regulations.gov. Follow the
                                                  control of the helicopter.
                                                                                                          06611; telephone 1–800–Winged–S or 203–               instructions for submitting comments.
                                                  (c) Effective Date                                      416–4299; email sikorskywcs@sikorsky.com.                • Fax: 202–493–2251.
                                                     This AD becomes effective November 10,               You may review a copy of the service                     • Mail: U.S. Department of
                                                  2015 to all persons except those persons to             information at the FAA, Office of the                 Transportation, Docket Operations,
                                                  whom it was made immediately effective by               Regional Counsel, Southwest Region, 10101
                                                                                                                                                                M–30, West Building Ground Floor,
                                                  Emergency AD 2015–19–51, issued on                      Hillwood Pkwy, Room 6N–321, Fort Worth,
                                                                                                          TX 76177.                                             Room W12–140, 1200 New Jersey
                                                  September 14, 2015, which contains the                                                                        Avenue SE., Washington, DC 20590.
                                                  requirements of this AD.                                (h) Subject                                              • Hand Delivery: U.S. Department of
                                                  (d) Compliance                                            Joint Aircraft Service Component (JASC)             Transportation, Docket Operations,
                                                    You are responsible for performing each               Code: 2700, Flight Control System.                    M–30, West Building Ground Floor,
                                                  action required by this AD within the                     Issued in Fort Worth, Texas, on October 9,          Room W12–140, 1200 New Jersey
                                                  specified compliance time unless it has                 2015.                                                 Avenue SE., Washington, DC 20590,
                                                  already been accomplished prior to that time.           Lance T. Gant,                                        between 9 a.m. and 5 p.m., Monday
                                                  (e) Required Actions                                    Manager, Rotorcraft Directorate, Aircraft             through Friday, except Federal holidays.
                                                     Within five hours time-in-service:                   Certification Service.                                Examining the AD Docket
                                                     (1) Inspect each pushrod end to determine            [FR Doc. 2015–26949 Filed 10–23–15; 8:45 am]
                                                  whether a 0.020 inch diameter lockwire can                                                                      You may examine the AD docket on
                                                                                                          BILLING CODE 4910–13–P
                                                  pass through the inspection hole.                                                                             the Internet at http://
                                                     (i) If the lockwire passes through the                                                                     www.regulations.gov by searching for
                                                  inspection hole, replace the pushrod                    DEPARTMENT OF TRANSPORTATION                          and locating Docket No. FAA–2015–
                                                  assembly.                                                                                                     4208; or in person at the Docket
                                                     (ii) If the lockwire does not pass through           Federal Aviation Administration                       Management Facility between 9 a.m.
                                                  the inspection hole, inspect the jamnut to                                                                    and 5 p.m., Monday through Friday,
                                                  determine whether it is seated against the                                                                    except Federal holidays. The AD docket
                                                  pushrod and whether it can be turned with               14 CFR Part 39
                                                                                                                                                                contains this AD, the regulatory
                                                  finger pressure. If the jamnut is not seated            [Docket No. FAA–2015–4208; Directorate
                                                  against the pushrod or can be turned with                                                                     evaluation, any comments received, and
                                                                                                          Identifier 2015–NM–152–AD; Amendment                  other information. The street address for
                                                  finger pressure, replace the pushrod                    39–18303; AD 2015–21–10]
                                                  assembly.                                                                                                     the Docket Office (phone: 800–647–
                                                     (2) Apply two slippage marks across each             RIN 2120–AA64                                         5527) is in the ADDRESSES section.
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                                                  pushrod tube and jamnut as follows:                                                                           Comments will be available in the AD
                                                     (i) Clean the area where a slippage mark is          Airworthiness Directives; The Boeing                  docket shortly after receipt.
                                                  to be applied.                                          Company Airplanes                                     FOR FURTHER INFORMATION CONTACT:
                                                     (ii) Apply two slippage marks across the
                                                  pushrod tube and jamnut, parallel and on                AGENCY:  Federal Aviation                             Rebel Nichols, Aerospace Engineer,
                                                  opposite sides of each other. Each slippage             Administration (FAA), DOT.                            Propulsion Branch, ANM–140S, FAA,
                                                  mark must extend at least 0.5 inch onto the                                                                   Seattle Aircraft Certification Office,
                                                                                                          ACTION: Final rule; request for
                                                  pushrod tube and must not cover the                                                                           1601 Lind Avenue SW., Renton, WA
                                                                                                          comments.
                                                  inspection hole. Figures 2 and 4 of Sikorsky                                                                  98057–3356; phone: 425–917–6509; fax:


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Document Created: 2018-02-27 08:56:18
Document Modified: 2018-02-27 08:56:18
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule; request for comments.
DatesThis AD becomes effective November 10, 2015 to all persons except those persons to whom it was made immediately effective by Emergency AD 2015-19-51, issued on September 14, 2015, which contains the requirements of this AD.
ContactBlaine Williams, Aerospace Engineer, Boston Aircraft Certification Office, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, Massachusetts 01803; telephone (781) 238-7161; email [email protected]
FR Citation80 FR 65128 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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