82_FR_38785 82 FR 38629 - Airworthiness Directives; The Boeing Company Airplanes

82 FR 38629 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 156 (August 15, 2017)

Page Range38629-38632
FR Document2017-16666

We propose to supersede Airworthiness Directive (AD) 2015-09- 07, which applies to all The Boeing Company Model 787 airplanes. AD 2015-09-07 requires a repetitive maintenance task for electrical power deactivation. Since we issued AD 2015-09-07, Boeing has developed new software for the generator control unit (GCU) that addresses the software counter overflow anomaly that prompted the issuance of AD 2015-09-07. This proposed AD would require installing the new GCU software. This proposed AD would also remove certain airplanes from the applicability. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 82 Issue 156 (Tuesday, August 15, 2017)
[Federal Register Volume 82, Number 156 (Tuesday, August 15, 2017)]
[Proposed Rules]
[Pages 38629-38632]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-16666]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0771; Product Identifier 2016-NM-212-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to supersede Airworthiness Directive (AD) 2015-09-
07, which applies to all The Boeing Company Model 787 airplanes. AD 
2015-09-07 requires a repetitive maintenance task for electrical power 
deactivation. Since we issued AD 2015-09-07, Boeing has developed new 
software for the generator control unit (GCU) that addresses the 
software counter overflow anomaly that prompted the issuance of AD 
2015-09-07. This proposed AD would require installing the new GCU 
software. This proposed AD would also remove certain airplanes from the 
applicability. We are proposing this AD to address the unsafe condition 
on these products.

DATES: We must receive comments on this proposed AD by September 29, 
2017.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact Boeing 
Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 
2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600; 
telephone 562-797-1717; Internet https://www.myboeingfleet.com. You may 
view this referenced service information at the FAA, Transport 
Standards Branch, 1601 Lind Avenue SW., Renton, WA. For information on 
the availability of this material at the FAA, call 425-227-1221. It is 
also available on the Internet at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2017-0771.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0771; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Stephen Oshiro, Aerospace Engineer, 
Systems and Equipment Section, FAA, Seattle ACO Branch, 1601 Lind 
Avenue SW., Renton, WA 98057-3356; phone: 425-917-6480; fax: 425-917-
6590; email: [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2017-0771; 
Product Identifier 2016-NM-212-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this proposed AD. We will consider 
all comments received by the closing date and may amend this proposed 
AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    On April 23, 2015, we issued AD 2015-09-07, Amendment 39-18153 (80 
FR 24789, May 1, 2015) (``AD 2015-09-07''), for all The Boeing Company 
Model 787 airplanes. AD 2015-09-07 requires a repetitive maintenance 
task for electrical power deactivation on Model 787 airplanes. AD 2015-
09-07 resulted from the determination that a Model 787 airplane that 
has been powered continuously for 248 days can lose all alternating 
current (AC) electrical power due to the GCUs simultaneously going into 
failsafe mode. This condition is caused by a software counter internal 
to the GCUs that will overflow after 248 days of continuous power. We 
issued AD 2015-09-07 to prevent loss of all AC electrical power, which 
could result in loss of control of the airplane.

Actions Since AD 2015-09-07 Was Issued

    The preamble to AD 2015-09-07 specifies that we consider the 
requirements ``interim action'' and that the manufacturer is developing 
a modification to address the unsafe condition. That AD explains that 
we might consider further rulemaking if a modification is developed, 
approved, and available. Since we issued AD 2015-09-07, Boeing has 
developed new software for the Model 787 GCU that addresses the 
software counter overflow anomaly that prompted the issuance of AD 
2015-09-07. Installation of the new software eliminates the need for 
performing the repetitive maintenance

[[Page 38630]]

actions (i.e., repetitive electrical power deactivations) that were 
mandated by AD 2015-09-07 as a means of mitigating the GCU software 
counter overflow anomaly.

Related Service Information Under 1 CFR Part 51

    We reviewed the following service information.
     Boeing Service Bulletin B787-81205-SB240063-00, Issue 002, 
dated June 7, 2016, which describes procedures for installing 
operational program software (OPS) into each of the six GCUs and doing 
a software check. This service information specifies to concurrently 
accomplish the following two service bulletins:
     Boeing Service Bulletin B787-81205-SB280018-00, Issue 001, 
dated April 17, 2014, which describes procedures for installing fuel 
quantity management program software and doing a software check.
     Boeing Service Bulletin B787-81205-SB420006-00, Issue 003, 
dated October 15, 2015, which describes procedures for installing 
common interface control document 9.3 software and doing a software 
check.
     Boeing Multi Operator Message MOM-MOM-15-0248-01B, dated 
April 19, 2015; and Boeing Multi Operator Message MOM-MOM-15-0248-
01B(R1), dated April 20, 2015. This service information describes 
procedures for electrical power deactivation of Model 787 airplanes. 
These documents are distinct due to editorial revisions.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

Proposed AD Requirements

    This proposed AD would retain all requirements of AD 2015-09-07. 
However, this proposed AD removes certain airplanes from the 
applicability of AD 2015-09-07, which affects all Model 787 airplanes. 
The new software specified in Boeing Service Bulletin B787-81205-
SB240063-00, Issue 002, dated June 7, 2016, has already been installed 
on airplanes having line numbers 4, 5, 10, 12-19, 22, 369, 371, 373, 
and 375-552 and will be installed in production on line numbers 553 and 
subsequent. Line numbers 1, 2, and 3 are no longer in service. 
Therefore, this proposed AD only affects airplanes identified in Boeing 
Service Bulletin B787-81205-SB240063-00, Issue 002, dated June 7, 2016.
    This proposed AD would also require installing the new software and 
accomplishing applicable corrective actions specified in the service 
information described previously. For information on the procedures and 
compliance times, see this service information at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0771.
    The phrase ``corrective actions'' is used in this proposed AD. 
Corrective actions correct or address any condition found. Corrective 
actions in an AD could include, for example, repairs.

Differences Between This Proposed AD and the Service Information

    Boeing Service Bulletin B787-81205-SB240063-00, Issue 002, dated 
June 7, 2016, states that this revision has no effect on airplanes on 
which Issue 001 was previously done. However, this proposed AD will 
require additional action for Group 2 airplanes. Operators of Group 2 
airplanes will be required to accomplish the actions in Boeing Service 
Bulletin B787-81205-SB420006-00, issue 003, dated October 15, 2015, on 
those airplanes.

Costs of Compliance

    We estimate that this proposed AD affects 47 airplanes of U.S. 
registry. We estimate the following costs to comply with this proposed 
AD:


                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                Cost on  U.S.
              Action                    Labor cost        Parts cost    Cost per product          operators
----------------------------------------------------------------------------------------------------------------
Electrical power deactivation      1 work-hour x $85              $0  $85 per deactivation  $3,995 per
 (actions retained from AD 2015-    per hour = $85 per                 cycle.                deactivation cycle.
 09-07).                            deactivation cycle.
Software installation (new         5 work-hours x $85             $0  $425................  $19,975.
 proposed action).                  per hour = 425.
----------------------------------------------------------------------------------------------------------------


                                     Estimated Costs for Concurrent Actions
----------------------------------------------------------------------------------------------------------------
                Action                        Labor cost               Parts cost        Cost on  U.S. operators
----------------------------------------------------------------------------------------------------------------
Install fuel quantity management       1 work-hour x $85 per    \1\....................  Up to $3,995.
 program software.                      hour = $85.
Install common interface control       Up to 15 work-hours X    \1\....................  Up to $59,925.
 document 9.3 software.                 $85 per hour = $1,275.
----------------------------------------------------------------------------------------------------------------
\1\ We have received no definitive data that would enable us to provide parts cost estimates for the concurrent
  actions specified in this proposed AD.

    According to the manufacturer, some of the costs of this proposed 
AD may be covered under warranty, thereby reducing the cost impact on 
affected individuals. We do not control warranty coverage for affected 
individuals. As a result, we have included all available costs in our 
cost estimate.

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,

[[Page 38631]]

Part A, Subpart III, Section 44701, ``General requirements.'' Under 
that section, Congress charges the FAA with promoting safe flight of 
civil aircraft in air commerce by prescribing regulations for 
practices, methods, and procedures the Administrator finds necessary 
for safety in air commerce. This regulation is within the scope of that 
authority because it addresses an unsafe condition that is likely to 
exist or develop on products identified in this rulemaking action.
    This proposed AD is issued in accordance with authority delegated 
by the Executive Director, Aircraft Certification Service, as 
authorized by FAA Order 8000.51C. In accordance with that order, 
issuance of ADs is normally a function of the Compliance and 
Airworthiness Division, but during this transition period, the 
Executive Director has delegated the authority to issue ADs applicable 
to transport category airplanes to the Director of the System Oversight 
Division.

Regulatory Findings

    We have determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that the proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2015-09-07, Amendment 39-18153 (80 FR 24789, May 1, 2015), and adding 
the following new AD:

The Boeing Company: Docket No. FAA-2017-0771; Product Identifier 
2016-NM-212-AD.

(a) Comments Due Date

    The FAA must receive comments on this AD action by September 29, 
2017.

(b) Affected ADs

    This AD replaces AD 2015-09-07, Amendment 39-18153 (80 FR 24789, 
May 1, 2015) (``AD 2015-09-07'').

(c) Applicability

    This AD applies to The Boeing Company Model 787-8 and 787-9 
airplanes, certificated in any category, as identified in Boeing 
Service Bulletin B787-81205-SB240063-00, Issue 002, dated June 7, 
2016.

(d) Subject

    Air Transport Association (ATA) of America Code 24, Electrical 
power.

(e) Unsafe Condition

    This AD was prompted by the determination that a Model 787 
airplane that has been powered continuously for 248 days can lose 
all alternating current (AC) electrical power due to the generator 
control units (GCUs) simultaneously going into failsafe mode. This 
condition is caused by a software counter internal to the GCUs that 
will overflow after 248 days of continuous power. We are issuing 
this AD to prevent loss of all AC electrical power, which could 
result in loss of control of the airplane.

(f) Compliance

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

(g) Retained Repetitive Maintenance Task: Electrical Power Deactivation 
With a New Reference To Terminating Action

    This paragraph restates the actions required by paragraph (g) of 
AD 2015-09-07, with a new reference to terminating action. At the 
latest of the times specified in paragraphs (g)(1), (g)(2), and 
(g)(3) of this AD, accomplish electrical power deactivation on the 
airplane, in accordance with step 2) in ``DESIRED ACTION'' of Boeing 
Multi Operator Message MOM-MOM-15-0248-01B, dated April 19, 2015; or 
Boeing Multi Operator Message MOM-MOM-15-0248-01B(R1), dated April 
20, 2015. The main and auxiliary power unit (APU) batteries do not 
need to be disconnected when performing the electrical power 
deactivation. Repeat the electrical power deactivation thereafter at 
intervals not to exceed 120 days until the software installation 
required by paragraph (h) of this AD is done.
    (1) Within 120 days after the last electrical power deactivation 
in accordance with step 2) in ``DESIRED ACTION'' of Boeing Multi 
Operator Message MOM-MOM-15-0248-01B, dated April 19, 2015; or 
Boeing Multi Operator Message MOM-MOM-15-0248-01B(R1), dated April 
20, 2015.
    (2) Within 120 days after the date of issuance of the original 
certificate of airworthiness or the date of issuance of the original 
export certificate of airworthiness.
    (3) Within 7 days after May 1, 2015 (the effective date of AD 
2015-09-07).

(h) New Requirement of This AD: Software Installation

    Within 12 months after the effective date of this AD: Install 
new operational program software (OPS) into each of the six GCUs, do 
a software check, and do all applicable corrective actions, in 
accordance with the Accomplishment Instructions of Boeing Service 
Bulletin B787-81205-SB240063-00, Issue 002, dated June 7, 2016. Do 
all applicable corrective actions before further flight. 
Accomplishment of the actions required by this paragraph on all six 
GCUs on an airplane terminates the requirements of paragraph (g) of 
this AD for that airplane.

(i) New Requirement of This AD: Concurrent Actions

    (1) For Group 1 airplanes as identified in Boeing Service 
Bulletin B787-81205-SB240063-00, Issue 002, dated June 7, 2016: 
Prior to or concurrently with accomplishing the actions required by 
paragraph (h) of this AD, do the actions specified in paragraph 
(i)(1)(i) and (i)(1)(ii) of this AD.
    (i) Install new fuel quantity management program software and do 
a software check, in accordance with the Accomplishment Instructions 
of Boeing Service Bulletin B787-81205-SB280018-00, Issue 001, dated 
April 17, 2014. If any software check fails, before further flight, 
do corrective actions, repeat the check, and do applicable 
corrective actions until the software passes the check.
    (ii) Install new common interface control document 9.3 software 
and do software checks, in accordance with the Accomplishment 
Instructions of Boeing Service Bulletin B787-81205-SB420006-00, 
Issue 003, dated October 15, 2015. If any software check fails, 
before further flight, do corrective actions, repeat the check, and 
do applicable corrective actions until the software passes the 
check.
    (2) For Group 2 airplanes as identified in Boeing Service 
Bulletin B787-81205-SB240063-00, Issue 002, dated June 7, 2016: 
Prior to or concurrently with accomplishing the actions required by 
paragraph (h) of this AD, install new common interface control 
document 9.3 software and do software checks, in accordance with the 
Accomplishment Instructions of Boeing Service Bulletin B787-81205-
SB420006-00, Issue 003, dated October 15, 2015. If any software 
check fails, before further flight, do corrective actions, repeat 
the check, and do applicable corrective actions until the software 
passes the check.

(j) Credit for Previous Actions

    (1) For Group 1 and Group 3 airplanes as identified in Boeing 
Service Bulletin B787-81205-SB240063-00, Issue 001, dated December 
22, 2015: This paragraph provides credit for the actions specified 
in paragraph

[[Page 38632]]

(h) of this AD, if those actions were performed before the effective 
date of this AD using Boeing Service Bulletin B787-81205-SB240063-
00, Issue 001, dated December 22, 2015.
    (2) For Group 2 airplanes as identified in Boeing Service 
Bulletin B787-81205-SB240063-00, Issue 001, dated December 22, 2015: 
This paragraph provides credit for the actions specified in 
paragraph (h) of this AD, if those actions were performed before the 
effective date of this AD using Boeing Service Bulletin B787-81205-
SB240063-00, Issue 001, dated December 22, 2015, and provided the 
actions specified in Boeing Service Bulletin B787-81205-SB420006-00, 
Issue 003, dated October 15, 2015, are done within 12 months after 
the effective date of this AD.

(k) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle ACO Branch, FAA, has the authority to 
approve AMOCs for this AD, if requested using the procedures found 
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request 
to your principal inspector or local Flight Standards District 
Office, as appropriate. If sending information directly to the 
manager of the certification office, send it to the attention of the 
person identified in paragraph (l)(1) of this AD. Information may be 
emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Seattle ACO Branch, to make those findings. To be approved, 
the repair method, modification deviation, or alteration deviation 
must meet the certification basis of the airplane, and the approval 
must specifically refer to this AD.
    (4) AMOCs approved previously for AD 2015-09-07 are approved as 
AMOCs for the corresponding provisions of paragraph (g) of this AD.
    (5) For service information that contains steps that are labeled 
as Required for Compliance (RC), the provisions of paragraphs 
(k)(5)(i) and (k)(5)(ii) of this AD apply.
    (i) The steps labeled as RC, including substeps under an RC step 
and any figures identified in an RC step, must be done to comply 
with the AD. If a step or substep is labeled ``RC Exempt,'' then the 
RC requirement is removed from that step or substep. An AMOC is 
required for any deviations to RC steps, including substeps and 
identified figures.
    (ii) Steps not labeled as RC may be deviated from using accepted 
methods in accordance with the operator's maintenance or inspection 
program without obtaining approval of an AMOC, provided the RC 
steps, including substeps and identified figures, can still be done 
as specified, and the airplane can be put back in an airworthy 
condition.

(l) Related Information

    (1) For more information about this AD, contact Stephen Oshiro, 
Aerospace Engineer, Systems and Equipment Section, FAA, Seattle ACO 
Branch, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6480; fax: 425-917-6590; email: [email protected].
    (2) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Contractual & Data Services 
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-
5600; telephone 562-797-1717; Internet https://www.myboeingfleet.com. You may view this referenced service 
information at the FAA, Transport Standards Branch, 1601 Lind Avenue 
SW., Renton, WA. For information on the availability of this 
material at the FAA, call 425-227-1221.

    Issued in Renton, Washington, on July 28, 2017.
John P. Piccola, Jr.,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2017-16666 Filed 8-14-17; 8:45 am]
 BILLING CODE 4910-13-P



                                                                           Federal Register / Vol. 82, No. 156 / Tuesday, August 15, 2017 / Proposed Rules                                         38629

                                                      (2) Contacting the Manufacturer: For any              (GCU) that addresses the software                     SW., Renton, WA 98057–3356; phone:
                                                    requirement in this AD to obtain corrective             counter overflow anomaly that                         425–917–6480; fax: 425–917–6590;
                                                    actions from a manufacturer, the action must            prompted the issuance of AD 2015–09–                  email: Stephen.Oshiro@faa.gov.
                                                    be accomplished using a method approved                 07. This proposed AD would require                    SUPPLEMENTARY INFORMATION:
                                                    by the Manager, New York ACO Branch,
                                                    FAA; or TCCA; or Bombardier, Inc.’s TCCA
                                                                                                            installing the new GCU software. This
                                                                                                            proposed AD would also remove certain                 Comments Invited
                                                    DAO. If approved by the DAO, the approval
                                                    must include the DAO-authorized signature.              airplanes from the applicability. We are                We invite you to send any written
                                                                                                            proposing this AD to address the unsafe               relevant data, views, or arguments about
                                                    (p) Related Information                                 condition on these products.                          this proposal. Send your comments to
                                                       (1) Refer to Mandatory Continuing                    DATES: We must receive comments on                    an address listed under the ADDRESSES
                                                    Airworthiness Information (MCAI) Canadian                                                                     section. Include ‘‘Docket No. FAA–
                                                                                                            this proposed AD by September 29,
                                                    Airworthiness Directive 2016–23R1, dated                                                                      2017–0771; Product Identifier 2016–
                                                    February 20, 2017, for related information.             2017.
                                                                                                                                                                  NM–212–AD’’ at the beginning of your
                                                    This MCAI may be found in the AD docket                 ADDRESSES: You may send comments,                     comments. We specifically invite
                                                    on the Internet at http://www.regulations.gov           using the procedures found in 14 CFR
                                                    by searching for and locating Docket No.                                                                      comments on the overall regulatory,
                                                                                                            11.43 and 11.45, by any of the following              economic, environmental, and energy
                                                    FAA–2017–0775.                                          methods:
                                                       (2) For more information about this AD,                                                                    aspects of this proposed AD. We will
                                                                                                               • Federal eRulemaking Portal: Go to                consider all comments received by the
                                                    contact Aziz Ahmed, Airframe Engineer,
                                                    Airframe and Mechanical Systems Section,                http://www.regulations.gov. Follow the                closing date and may amend this
                                                    FAA, New York ACO Branch, 1600 Stewart                  instructions for submitting comments.                 proposed AD because of those
                                                    Avenue, Suite 410, Westbury, NY 11590;                     • Fax: 202–493–2251.                               comments.
                                                    telephone: 516–228–7329; fax: 516–794–                     • Mail: U.S. Department of                           We will post all comments we
                                                    5531.                                                   Transportation, Docket Operations, M–                 receive, without change, to http://
                                                       (3) For service information identified in            30, West Building Ground Floor, Room                  www.regulations.gov, including any
                                                    this AD, contact Bombardier, Inc., 400 Côte-           W12–140, 1200 New Jersey Avenue SE.,                  personal information you provide. We
                                                    Vertu Road West, Dorval, Québec H4S 1Y9,               Washington, DC 20590.                                 will also post a report summarizing each
                                                    Canada; telephone 514–855–5000; fax 514–                   • Hand Delivery: Deliver to Mail                   substantive verbal contact we receive
                                                    855–7401; email thd.crj@                                address above between 9 a.m. and 5
                                                    aero.bombardier.com; Internet http://                                                                         about this proposed AD.
                                                                                                            p.m., Monday through Friday, except
                                                    www.bombardier.com. You may view this                                                                         Discussion
                                                    service information at the FAA, Transport               Federal holidays.
                                                    Standards Branch, 1601 Lind Avenue SW.,                    For service information identified in                 On April 23, 2015, we issued AD
                                                    Renton, WA. For information on the                      this NPRM, contact Boeing Commercial                  2015–09–07, Amendment 39–18153 (80
                                                    availability of this material at the FAA, call          Airplanes, Attention: Contractual & Data              FR 24789, May 1, 2015) (‘‘AD 2015–09–
                                                    425–227–1221.                                           Services (C&DS), 2600 Westminster                     07’’), for all The Boeing Company Model
                                                       Issued in Renton, Washington, on August              Blvd., MC 110–SK57, Seal Beach, CA                    787 airplanes. AD 2015–09–07 requires
                                                    2, 2017.                                                90740–5600; telephone 562–797–1717;                   a repetitive maintenance task for
                                                    Jeffrey E. Duven,                                       Internet https://                                     electrical power deactivation on Model
                                                    Director, System Oversight Division, Aircraft
                                                                                                            www.myboeingfleet.com. You may view                   787 airplanes. AD 2015–09–07 resulted
                                                    Certification Service.                                  this referenced service information at                from the determination that a Model 787
                                                    [FR Doc. 2017–16777 Filed 8–14–17; 8:45 am]
                                                                                                            the FAA, Transport Standards Branch,                  airplane that has been powered
                                                                                                            1601 Lind Avenue SW., Renton, WA.                     continuously for 248 days can lose all
                                                    BILLING CODE 4910–13–P
                                                                                                            For information on the availability of                alternating current (AC) electrical power
                                                                                                            this material at the FAA, call 425–227–               due to the GCUs simultaneously going
                                                    DEPARTMENT OF TRANSPORTATION                            1221. It is also available on the Internet            into failsafe mode. This condition is
                                                                                                            at http://www.regulations.gov by                      caused by a software counter internal to
                                                    Federal Aviation Administration                         searching for and locating Docket No.                 the GCUs that will overflow after 248
                                                                                                            FAA–2017–0771.                                        days of continuous power. We issued
                                                    14 CFR Part 39                                          Examining the AD Docket                               AD 2015–09–07 to prevent loss of all AC
                                                    [Docket No. FAA–2017–0771; Product                                                                            electrical power, which could result in
                                                                                                               You may examine the AD docket on                   loss of control of the airplane.
                                                    Identifier 2016–NM–212–AD]                              the Internet at http://
                                                    RIN 2120–AA64                                           www.regulations.gov by searching for                  Actions Since AD 2015–09–07 Was
                                                                                                            and locating Docket No. FAA–2017–                     Issued
                                                    Airworthiness Directives; The Boeing                    0771; or in person at the Docket                        The preamble to AD 2015–09–07
                                                    Company Airplanes                                       Management Facility between 9 a.m.                    specifies that we consider the
                                                    AGENCY: Federal Aviation                                and 5 p.m., Monday through Friday,                    requirements ‘‘interim action’’ and that
                                                    Administration (FAA), DOT.                              except Federal holidays. The AD docket                the manufacturer is developing a
                                                                                                            contains this proposed AD, the                        modification to address the unsafe
                                                    ACTION: Notice of proposed rulemaking
                                                                                                            regulatory evaluation, any comments                   condition. That AD explains that we
                                                    (NPRM).
                                                                                                            received, and other information. The                  might consider further rulemaking if a
                                                    SUMMARY:  We propose to supersede                       street address for the Docket Office                  modification is developed, approved,
mstockstill on DSK30JT082PROD with PROPOSALS




                                                    Airworthiness Directive (AD) 2015–09–                   (phone: 800–647–5527) is in the                       and available. Since we issued AD
                                                    07, which applies to all The Boeing                     ADDRESSES section. Comments will be                   2015–09–07, Boeing has developed new
                                                    Company Model 787 airplanes. AD                         available in the AD docket shortly after              software for the Model 787 GCU that
                                                    2015–09–07 requires a repetitive                        receipt.                                              addresses the software counter overflow
                                                    maintenance task for electrical power                   FOR FURTHER INFORMATION CONTACT:                      anomaly that prompted the issuance of
                                                    deactivation. Since we issued AD 2015–                  Stephen Oshiro, Aerospace Engineer,                   AD 2015–09–07. Installation of the new
                                                    09–07, Boeing has developed new                         Systems and Equipment Section, FAA,                   software eliminates the need for
                                                    software for the generator control unit                 Seattle ACO Branch, 1601 Lind Avenue                  performing the repetitive maintenance


                                               VerDate Sep<11>2014   16:14 Aug 14, 2017   Jkt 241001   PO 00000   Frm 00017   Fmt 4702   Sfmt 4702   E:\FR\FM\15AUP1.SGM   15AUP1


                                                    38630                     Federal Register / Vol. 82, No. 156 / Tuesday, August 15, 2017 / Proposed Rules

                                                    actions (i.e., repetitive electrical power              deactivation of Model 787 airplanes.                                  This proposed AD would also require
                                                    deactivations) that were mandated by                    These documents are distinct due to                                 installing the new software and
                                                    AD 2015–09–07 as a means of mitigating                  editorial revisions.                                                accomplishing applicable corrective
                                                    the GCU software counter overflow                         This service information is reasonably                            actions specified in the service
                                                    anomaly.                                                available because the interested parties                            information described previously. For
                                                    Related Service Information Under 1                     have access to it through their normal                              information on the procedures and
                                                    CFR Part 51                                             course of business or by the means                                  compliance times, see this service
                                                                                                            identified in the ADDRESSES section.                                information at http://
                                                      We reviewed the following service                                                                                         www.regulations.gov by searching for
                                                    information.                                            FAA’s Determination                                                 and locating Docket No. FAA–2017–
                                                      • Boeing Service Bulletin B787–                                                                                           0771.
                                                                                                              We are proposing this AD because we
                                                    81205–SB240063–00, Issue 002, dated
                                                                                                            evaluated all the relevant information                                The phrase ‘‘corrective actions’’ is
                                                    June 7, 2016, which describes
                                                                                                            and determined the unsafe condition                                 used in this proposed AD. Corrective
                                                    procedures for installing operational
                                                                                                            described previously is likely to exist or                          actions correct or address any condition
                                                    program software (OPS) into each of the
                                                                                                            develop in other products of the same                               found. Corrective actions in an AD
                                                    six GCUs and doing a software check.
                                                                                                            type design.                                                        could include, for example, repairs.
                                                    This service information specifies to
                                                    concurrently accomplish the following                   Proposed AD Requirements                                            Differences Between This Proposed AD
                                                    two service bulletins:                                                                                                      and the Service Information
                                                      • Boeing Service Bulletin B787–                         This proposed AD would retain all
                                                    81205–SB280018–00, Issue 001, dated                     requirements of AD 2015–09–07.                                         Boeing Service Bulletin B787–81205–
                                                    April 17, 2014, which describes                         However, this proposed AD removes                                   SB240063–00, Issue 002, dated June 7,
                                                    procedures for installing fuel quantity                 certain airplanes from the applicability                            2016, states that this revision has no
                                                    management program software and                         of AD 2015–09–07, which affects all                                 effect on airplanes on which Issue 001
                                                    doing a software check.                                 Model 787 airplanes. The new software                               was previously done. However, this
                                                      • Boeing Service Bulletin B787–                       specified in Boeing Service Bulletin                                proposed AD will require additional
                                                    81205–SB420006–00, Issue 003, dated                     B787–81205–SB240063–00, Issue 002,                                  action for Group 2 airplanes. Operators
                                                    October 15, 2015, which describes                       dated June 7, 2016, has already been                                of Group 2 airplanes will be required to
                                                    procedures for installing common                        installed on airplanes having line                                  accomplish the actions in Boeing
                                                    interface control document 9.3 software                 numbers 4, 5, 10, 12–19, 22, 369, 371,                              Service Bulletin B787–81205–
                                                    and doing a software check.                             373, and 375–552 and will be installed                              SB420006–00, issue 003, dated October
                                                      • Boeing Multi Operator Message                       in production on line numbers 553 and                               15, 2015, on those airplanes.
                                                    MOM–MOM–15–0248–01B, dated April                        subsequent. Line numbers 1, 2, and 3
                                                                                                                                                                                Costs of Compliance
                                                    19, 2015; and Boeing Multi Operator                     are no longer in service. Therefore, this
                                                    Message MOM–MOM–15–0248–                                proposed AD only affects airplanes                                     We estimate that this proposed AD
                                                    01B(R1), dated April 20, 2015. This                     identified in Boeing Service Bulletin                               affects 47 airplanes of U.S. registry. We
                                                    service information describes                           B787–81205–SB240063–00, Issue 002,                                  estimate the following costs to comply
                                                    procedures for electrical power                         dated June 7, 2016.                                                 with this proposed AD:

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

                                                    Electrical power deactivation         1 work-hour × $85 per hour =                       $0      $85 per deactivation cycle ......                 $3,995 per deactivation cycle.
                                                      (actions retained from AD             $85 per deactivation cycle.
                                                      2015–09–07).
                                                    Software installation (new pro-       5 work-hours × $85 per hour =                      $0      $425 ........................................     $19,975.
                                                      posed action).                        425.


                                                                                                       ESTIMATED COSTS FOR CONCURRENT ACTIONS
                                                                                                                                                                                                                Cost on
                                                                     Action                                 Labor cost                                       Parts cost                                      U.S. operators

                                                    Install fuel quantity management          1 work-hour × $85 per hour = $85           1   ....................................................   Up to $3,995.
                                                      program software.
                                                    Install common interface control          Up to 15 work-hours X $85 per              1   ....................................................   Up to $59,925.
                                                      document 9.3 software.                    hour = $1,275.
                                                     1 We have received no definitive data that would enable us to provide parts cost estimates for the concurrent actions specified in this proposed
                                                    AD.
mstockstill on DSK30JT082PROD with PROPOSALS




                                                      According to the manufacturer, some                   result, we have included all available                              Section 106, describes the authority of
                                                    of the costs of this proposed AD may be                 costs in our cost estimate.                                         the FAA Administrator. Subtitle VII,
                                                    covered under warranty, thereby                                                                                             Aviation Programs, describes in more
                                                                                                            Authority for This Rulemaking
                                                    reducing the cost impact on affected                                                                                        detail the scope of the Agency’s
                                                    individuals. We do not control warranty                   Title 49 of the United States Code                                authority.
                                                    coverage for affected individuals. As a                 specifies the FAA’s authority to issue                                We are issuing this rulemaking under
                                                                                                            rules on aviation safety. Subtitle I,                               the authority described in Subtitle VII,


                                               VerDate Sep<11>2014   16:14 Aug 14, 2017   Jkt 241001   PO 00000   Frm 00018   Fmt 4702   Sfmt 4702        E:\FR\FM\15AUP1.SGM               15AUP1


                                                                           Federal Register / Vol. 82, No. 156 / Tuesday, August 15, 2017 / Proposed Rules                                               38631

                                                    Part A, Subpart III, Section 44701,                         Authority: 49 U.S.C. 106(g), 40113, 44701.        Operator Message MOM–MOM–15–0248–
                                                    ‘‘General requirements.’’ Under that                                                                          01B, dated April 19, 2015; or Boeing Multi
                                                                                                            § 39.13   [Amended]                                   Operator Message MOM–MOM–15–0248–
                                                    section, Congress charges the FAA with
                                                                                                            ■ 2. The FAA amends § 39.13 by                        01B(R1), dated April 20, 2015.
                                                    promoting safe flight of civil aircraft in                                                                       (2) Within 120 days after the date of
                                                    air commerce by prescribing regulations                 removing Airworthiness Directive (AD)
                                                                                                            2015–09–07, Amendment 39–18153 (80                    issuance of the original certificate of
                                                    for practices, methods, and procedures                                                                        airworthiness or the date of issuance of the
                                                    the Administrator finds necessary for                   FR 24789, May 1, 2015), and adding the                original export certificate of airworthiness.
                                                    safety in air commerce. This regulation                 following new AD:                                        (3) Within 7 days after May 1, 2015 (the
                                                    is within the scope of that authority                   The Boeing Company: Docket No. FAA–                   effective date of AD 2015–09–07).
                                                    because it addresses an unsafe condition                    2017–0771; Product Identifier 2016–
                                                                                                                                                                  (h) New Requirement of This AD: Software
                                                    that is likely to exist or develop on                       NM–212–AD.
                                                                                                                                                                  Installation
                                                    products identified in this rulemaking                  (a) Comments Due Date                                    Within 12 months after the effective date
                                                    action.                                                   The FAA must receive comments on this               of this AD: Install new operational program
                                                       This proposed AD is issued in                        AD action by September 29, 2017.                      software (OPS) into each of the six GCUs, do
                                                    accordance with authority delegated by                                                                        a software check, and do all applicable
                                                    the Executive Director, Aircraft                        (b) Affected ADs                                      corrective actions, in accordance with the
                                                    Certification Service, as authorized by                   This AD replaces AD 2015–09–07,                     Accomplishment Instructions of Boeing
                                                    FAA Order 8000.51C. In accordance                       Amendment 39–18153 (80 FR 24789, May 1,               Service Bulletin B787–81205–SB240063–00,
                                                    with that order, issuance of ADs is                     2015) (‘‘AD 2015–09–07’’).                            Issue 002, dated June 7, 2016. Do all
                                                    normally a function of the Compliance                                                                         applicable corrective actions before further
                                                                                                            (c) Applicability                                     flight. Accomplishment of the actions
                                                    and Airworthiness Division, but during                     This AD applies to The Boeing Company              required by this paragraph on all six GCUs
                                                    this transition period, the Executive                   Model 787–8 and 787–9 airplanes,                      on an airplane terminates the requirements of
                                                    Director has delegated the authority to                 certificated in any category, as identified in        paragraph (g) of this AD for that airplane.
                                                    issue ADs applicable to transport                       Boeing Service Bulletin B787–81205–
                                                    category airplanes to the Director of the               SB240063–00, Issue 002, dated June 7, 2016.           (i) New Requirement of This AD: Concurrent
                                                                                                                                                                  Actions
                                                    System Oversight Division.                              (d) Subject
                                                                                                                                                                     (1) For Group 1 airplanes as identified in
                                                    Regulatory Findings                                       Air Transport Association (ATA) of                  Boeing Service Bulletin B787–81205–
                                                      We have determined that this                          America Code 24, Electrical power.                    SB240063–00, Issue 002, dated June 7, 2016:
                                                    proposed AD would not have federalism                   (e) Unsafe Condition                                  Prior to or concurrently with accomplishing
                                                                                                                                                                  the actions required by paragraph (h) of this
                                                    implications under Executive Order                         This AD was prompted by the                        AD, do the actions specified in paragraph
                                                    13132. This proposed AD would not                       determination that a Model 787 airplane that          (i)(1)(i) and (i)(1)(ii) of this AD.
                                                    have a substantial direct effect on the                 has been powered continuously for 248 days               (i) Install new fuel quantity management
                                                    States, on the relationship between the                 can lose all alternating current (AC) electrical      program software and do a software check, in
                                                    national Government and the States, or                  power due to the generator control units              accordance with the Accomplishment
                                                    on the distribution of power and                        (GCUs) simultaneously going into failsafe             Instructions of Boeing Service Bulletin B787–
                                                                                                            mode. This condition is caused by a software          81205–SB280018–00, Issue 001, dated April
                                                    responsibilities among the various                      counter internal to the GCUs that will
                                                    levels of government.                                                                                         17, 2014. If any software check fails, before
                                                                                                            overflow after 248 days of continuous power.          further flight, do corrective actions, repeat
                                                      For the reasons discussed above, I                    We are issuing this AD to prevent loss of all         the check, and do applicable corrective
                                                    certify that the proposed regulation:                   AC electrical power, which could result in            actions until the software passes the check.
                                                      (1) Is not a ‘‘significant regulatory                 loss of control of the airplane.                         (ii) Install new common interface control
                                                    action’’ under Executive Order 12866,                                                                         document 9.3 software and do software
                                                      (2) Is not a ‘‘significant rule’’ under               (f) Compliance
                                                                                                                                                                  checks, in accordance with the
                                                    the DOT Regulatory Policies and                            Comply with this AD within the                     Accomplishment Instructions of Boeing
                                                    Procedures (44 FR 11034, February 26,                   compliance times specified, unless already            Service Bulletin B787–81205–SB420006–00,
                                                    1979),                                                  done.                                                 Issue 003, dated October 15, 2015. If any
                                                      (3) Will not affect intrastate aviation               (g) Retained Repetitive Maintenance Task:             software check fails, before further flight, do
                                                    in Alaska, and                                          Electrical Power Deactivation With a New              corrective actions, repeat the check, and do
                                                      (4) Will not have a significant                       Reference To Terminating Action                       applicable corrective actions until the
                                                                                                                                                                  software passes the check.
                                                    economic impact, positive or negative,                     This paragraph restates the actions                   (2) For Group 2 airplanes as identified in
                                                    on a substantial number of small entities               required by paragraph (g) of AD 2015–09–07,           Boeing Service Bulletin B787–81205–
                                                    under the criteria of the Regulatory                    with a new reference to terminating action.           SB240063–00, Issue 002, dated June 7, 2016:
                                                    Flexibility Act.                                        At the latest of the times specified in               Prior to or concurrently with accomplishing
                                                                                                            paragraphs (g)(1), (g)(2), and (g)(3) of this AD,     the actions required by paragraph (h) of this
                                                    List of Subjects in 14 CFR Part 39                      accomplish electrical power deactivation on           AD, install new common interface control
                                                      Air transportation, Aircraft, Aviation                the airplane, in accordance with step 2) in           document 9.3 software and do software
                                                    safety, Incorporation by reference,                     ‘‘DESIRED ACTION’’ of Boeing Multi                    checks, in accordance with the
                                                                                                            Operator Message MOM–MOM–15–0248–                     Accomplishment Instructions of Boeing
                                                    Safety.
                                                                                                            01B, dated April 19, 2015; or Boeing Multi            Service Bulletin B787–81205–SB420006–00,
                                                    The Proposed Amendment                                  Operator Message MOM–MOM–15–0248–                     Issue 003, dated October 15, 2015. If any
                                                                                                            01B(R1), dated April 20, 2015. The main and           software check fails, before further flight, do
                                                      Accordingly, under the authority                      auxiliary power unit (APU) batteries do not           corrective actions, repeat the check, and do
mstockstill on DSK30JT082PROD with PROPOSALS




                                                    delegated to me by the Administrator,                   need to be disconnected when performing               applicable corrective actions until the
                                                    the FAA proposes to amend 14 CFR part                   the electrical power deactivation. Repeat the         software passes the check.
                                                    39 as follows:                                          electrical power deactivation thereafter at
                                                                                                            intervals not to exceed 120 days until the            (j) Credit for Previous Actions
                                                    PART 39—AIRWORTHINESS                                   software installation required by paragraph              (1) For Group 1 and Group 3 airplanes as
                                                    DIRECTIVES                                              (h) of this AD is done.                               identified in Boeing Service Bulletin B787–
                                                                                                               (1) Within 120 days after the last electrical      81205–SB240063–00, Issue 001, dated
                                                    ■ 1. The authority citation for part 39                 power deactivation in accordance with step            December 22, 2015: This paragraph provides
                                                    continues to read as follows:                           2) in ‘‘DESIRED ACTION’’ of Boeing Multi              credit for the actions specified in paragraph



                                               VerDate Sep<11>2014   16:14 Aug 14, 2017   Jkt 241001   PO 00000   Frm 00019   Fmt 4702   Sfmt 4702   E:\FR\FM\15AUP1.SGM   15AUP1


                                                    38632                  Federal Register / Vol. 82, No. 156 / Tuesday, August 15, 2017 / Proposed Rules

                                                    (h) of this AD, if those actions were                   (l) Related Information                                  • Federal eRulemaking Portal: Go to
                                                    performed before the effective date of this AD             (1) For more information about this AD,            http://www.regulations.gov. Follow the
                                                    using Boeing Service Bulletin B787–81205–               contact Stephen Oshiro, Aerospace Engineer,           instructions for submitting comments.
                                                    SB240063–00, Issue 001, dated December 22,              Systems and Equipment Section, FAA,                      • Fax: 202–493–2251.
                                                    2015.
                                                       (2) For Group 2 airplanes as identified in
                                                                                                            Seattle ACO Branch, 1601 Lind Avenue SW.,                • Mail: U.S. Department of
                                                                                                            Renton, WA 98057–3356; phone: 425–917–                Transportation, Docket Operations, M–
                                                    Boeing Service Bulletin B787–81205–                     6480; fax: 425–917–6590; email:
                                                    SB240063–00, Issue 001, dated December 22,                                                                    30, West Building Ground Floor, Room
                                                                                                            Stephen.Oshiro@faa.gov.
                                                    2015: This paragraph provides credit for the               (2) For service information identified in          W12–140, 1200 New Jersey Avenue SE.,
                                                    actions specified in paragraph (h) of this AD,          this AD, contact Boeing Commercial                    Washington, DC 20590.
                                                    if those actions were performed before the
                                                                                                            Airplanes, Attention: Contractual & Data                 • Hand Delivery: Deliver to Mail
                                                    effective date of this AD using Boeing Service                                                                address above between 9 a.m. and 5
                                                                                                            Services (C&DS), 2600 Westminster Blvd.,
                                                    Bulletin B787–81205–SB240063–00, Issue
                                                                                                            MC 110–SK57, Seal Beach, CA 90740–5600;               p.m., Monday through Friday, except
                                                    001, dated December 22, 2015, and provided
                                                                                                            telephone 562–797–1717; Internet https://             Federal holidays.
                                                    the actions specified in Boeing Service
                                                                                                            www.myboeingfleet.com. You may view this                 For service information identified in
                                                    Bulletin B787–81205–SB420006–00, Issue
                                                                                                            referenced service information at the FAA,            this NPRM, contact Boeing Commercial
                                                    003, dated October 15, 2015, are done within
                                                                                                            Transport Standards Branch, 1601 Lind
                                                    12 months after the effective date of this AD.                                                                Airplanes, Attention: Contractual & Data
                                                                                                            Avenue SW., Renton, WA. For information
                                                                                                            on the availability of this material at the           Services (C&DS), 2600 Westminster
                                                    (k) Alternative Methods of Compliance
                                                    (AMOCs)                                                 FAA, call 425–227–1221.                               Blvd., MC 110–SK57, Seal Beach, CA
                                                                                                                                                                  90740–5600; telephone 562–797–1717;
                                                       (1) The Manager, Seattle ACO Branch,                   Issued in Renton, Washington, on July 28,
                                                                                                                                                                  Internet https://
                                                    FAA, has the authority to approve AMOCs                 2017.
                                                    for this AD, if requested using the procedures                                                                www.myboeingfleet.com. You may view
                                                                                                            John P. Piccola, Jr.,
                                                    found in 14 CFR 39.19. In accordance with                                                                     this referenced service information at
                                                                                                            Acting Director, System Oversight Division,           the FAA, Transport Standards Branch,
                                                    14 CFR 39.19, send your request to your
                                                                                                            Aircraft Certification Service.
                                                    principal inspector or local Flight Standards                                                                 1601 Lind Avenue SW., Renton, WA.
                                                    District Office, as appropriate. If sending             [FR Doc. 2017–16666 Filed 8–14–17; 8:45 am]           For information on the availability of
                                                    information directly to the manager of the              BILLING CODE 4910–13–P                                this material at the FAA, call 425–227–
                                                    certification office, send it to the attention of                                                             1221. It is also available on the Internet
                                                    the person identified in paragraph (l)(1) of                                                                  at http://www.regulations.gov by
                                                    this AD. Information may be emailed to: 9-              DEPARTMENT OF TRANSPORTATION                          searching for and locating Docket No.
                                                    ANM-Seattle-ACO-AMOC-Requests@faa.gov.
                                                       (2) Before using any approved AMOC,                  Federal Aviation Administration                       FAA–2017–0772.
                                                    notify your appropriate principal inspector,                                                                  Examining the AD Docket
                                                    or lacking a principal inspector, the manager           14 CFR Part 39
                                                    of the local flight standards district office/                                                                  You may examine the AD docket on
                                                    certificate holding district office.                                                                          the Internet at http://
                                                                                                            [Docket No. FAA–2017–0772; Product
                                                       (3) An AMOC that provides an acceptable
                                                                                                            Identifier 2017–NM–075–AD]
                                                                                                                                                                  www.regulations.gov by searching for
                                                    level of safety may be used for any repair,                                                                   and locating Docket No. FAA–2017–
                                                    modification, or alteration required by this                                                                  0772; or in person at the Docket
                                                    AD if it is approved by the Boeing                      RIN 2120–AA64
                                                                                                                                                                  Management Facility between 9 a.m.
                                                    Commercial Airplanes Organization
                                                                                                            Airworthiness Directives; The Boeing                  and 5 p.m., Monday through Friday,
                                                    Designation Authorization (ODA) that has
                                                    been authorized by the Manager, Seattle ACO             Company Airplanes                                     except Federal holidays. The AD docket
                                                    Branch, to make those findings. To be                                                                         contains this NPRM, the regulatory
                                                    approved, the repair method, modification
                                                                                                            AGENCY: Federal Aviation                              evaluation, any comments received, and
                                                    deviation, or alteration deviation must meet            Administration (FAA), DOT.                            other information. The street address for
                                                    the certification basis of the airplane, and the        ACTION: Notice of proposed rulemaking                 the Docket Office (phone: 800–647–
                                                    approval must specifically refer to this AD.            (NPRM).                                               5527) is in the ADDRESSES section.
                                                       (4) AMOCs approved previously for AD                                                                       Comments will be available in the AD
                                                    2015–09–07 are approved as AMOCs for the                SUMMARY:   We propose to adopt a new                  docket shortly after receipt.
                                                    corresponding provisions of paragraph (g) of            airworthiness directive (AD) for all The
                                                    this AD.                                                                                                      FOR FURTHER INFORMATION CONTACT:
                                                                                                            Boeing Company Model 737–100, –200,
                                                       (5) For service information that contains                                                                  Payman Soltani, Aerospace Engineer,
                                                                                                            –200C, –300, –400, and –500 series
                                                    steps that are labeled as Required for                                                                        Airframe Section, FAA, Los Angeles
                                                                                                            airplanes. This proposed AD was
                                                    Compliance (RC), the provisions of                                                                            ACO Branch, 3960 Paramount
                                                    paragraphs (k)(5)(i) and (k)(5)(ii) of this AD          prompted by reports of crack
                                                                                                                                                                  Boulevard, Lakewood, CA 90712–4137;
                                                    apply.                                                  indications in the right wing upper aft
                                                                                                                                                                  phone: 562–627–5313; fax: 562–627–
                                                       (i) The steps labeled as RC, including               skin, originating from fastener holes
                                                                                                                                                                  5210; email: payman.soltani@faa.gov.
                                                    substeps under an RC step and any figures               common to the rear spar upper chord.
                                                    identified in an RC step, must be done to               This proposed AD would require                        SUPPLEMENTARY INFORMATION:
                                                    comply with the AD. If a step or substep is             repetitive inspections for cracking of the            Comments Invited
                                                    labeled ‘‘RC Exempt,’’ then the RC                      wing upper aft skin, and applicable on-
                                                    requirement is removed from that step or                condition actions. We are proposing this                We invite you to send any written
                                                    substep. An AMOC is required for any
                                                                                                            AD to address the unsafe condition on                 relevant data, views, or arguments about
                                                    deviations to RC steps, including substeps                                                                    this proposal. Send your comments to
mstockstill on DSK30JT082PROD with PROPOSALS




                                                    and identified figures.                                 these products.
                                                                                                                                                                  an address listed under the ADDRESSES
                                                       (ii) Steps not labeled as RC may be                  DATES: We must receive comments on
                                                                                                                                                                  section. Include ‘‘Docket No. FAA–
                                                    deviated from using accepted methods in                 this proposed AD by September 29,                     2017–0772; Product Identifier 2017–
                                                    accordance with the operator’s maintenance              2017.
                                                    or inspection program without obtaining                                                                       NM–075–AD’’ at the beginning of your
                                                    approval of an AMOC, provided the RC steps,             ADDRESSES:  You may send comments,                    comments. We specifically invite
                                                    including substeps and identified figures, can          using the procedures found in 14 CFR                  comments on the overall regulatory,
                                                    still be done as specified, and the airplane            11.43 and 11.45, by any of the following              economic, environmental, and energy
                                                    can be put back in an airworthy condition.              methods:                                              aspects of this NPRM. We will consider


                                               VerDate Sep<11>2014   16:14 Aug 14, 2017   Jkt 241001   PO 00000   Frm 00020   Fmt 4702   Sfmt 4702   E:\FR\FM\15AUP1.SGM   15AUP1



Document Created: 2017-08-15 01:12:50
Document Modified: 2017-08-15 01:12:50
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 September 29, 2017.
ContactStephen Oshiro, Aerospace Engineer, Systems and Equipment Section, FAA, Seattle ACO Branch, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6480; fax: 425-917- 6590; email: [email protected]
FR Citation82 FR 38629 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

2025 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR