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PROPOSED AD HONDA AIRCRAFT COMPANY LLC: Docket No. FAA-2018-0513; Product Identifier 2018-CE-013-AD.
(a) COMMENTS DUE DATE

    The FAA must receive comments on this AD action by July 23, 2018.

(b) AFFECTED ADS

    This AD replaces AD 2018-11-05,  Amendment 39-19293  (83 FR 24016, May
    24, 2018).

(c) APPLICABILITY

    This AD applies to  Honda Aircraft Company LLC Model HA-420 airplanes,
    all serial numbers, that:

(1) Have power brake valve,  part  number  (P/N) HJ1-13243-101-005 or HJ1-
    13243-101-007, installed; and

(2) are certificated in any category.

(d) SUBJECT

    Joint Aircraft System Component (JASC)/Air Transport Association (ATA)
    of America Code 32, Landing Gear.

(e) UNSAFE CONDITION

    This AD was  prompted by reports  of unannunciated asymmetric  braking
    during ground operations and landing deceleration. We are issuing this
    AD  to detect  failure of  the power  brake valve  (PBV).  The  unsafe
    condition,  if  not  addressed,  could  result  in  degraded   braking
    performance and reduced  directional control during  ground operations
    and landing deceleration.

(f) COMPLIANCE

    Comply with this AD within the compliance times specified,  unless al-
    ready done.

(g) INSERT TEMPORARY REVISION INTO THE AIRPLANE FLIGHT MANUAL (AFM)

    Before further flight  after May 29, 2018 (the effective date retained
    from AD 2018-11-05)  insert  Honda Aircraft Company Temporary Revision
    TR 01.1,  dated  February 16, 2018,  into  the  Honda Aircraft Company
    (Honda) HA-420 Airplane Flight Manual (AFM)("the temporary revision").
    The procedures  listed  in  the  temporary revision are required while
    operating  with PBV P/N HJ1-13243-101-005 or P/N HJ1-13243-101-007 in-
    stalled.  This insertion and the steps therein may be performed by the
    owner/operator  (pilot) holding  at least  a private pilot certificate
    and must be entered  into the airplane records showing compliance with
    this AD in accordance  with 14 CFR 43.9(a)(1)-(4) and 14 CFR 91.417(a)
    (2)(v).  The record must be maintained  as required  by 14 CFR 91.417,
    121.380, or 135.439.

(h) NO REPORTING REQUIREMENT

    Although Honda Service Bulletin SB-420-32-001,  dated January 8, 2018,
    and Revision B,  dated April 16, 2018,  specify submitting certain in-
    formation to the manufacturer, this AD does not require that action.

(i) REPLACE THE POWER BRAKE VALVE

    As of and at any time after May 29, 2018  (the effective date retained
    from AD 2018-11-05),  if any of the procedures listed in the temporary
    revision referenced in paragraph (g) of this AD  reveal a leaking PBV,
    before further flight replace the installed PBV, P/N HJ1-13243-101-005
    or P/N HJ1-13243-101-007, with the improved design PBV, P/N HJ1-13243-
    101-009.  The replacement must be done  using  the  Accomplishment In-
    structions  in  either  Honda  Service Bulletin  SB-420-32-001,  dated
    January 8, 2018, or Revision B, dated April 16, 2018.  Before  further
    flight after installing P/N HJ1-13243-101-009,  remove  the  temporary
    revision from the Honda HA-420 AFM.

(j) OPTIONAL TERMINATING ACTION  FOR INSERTING THE AFM TEMPORARY REVISION/
    PILOT CHECKS

(1) Instead of inserting the temporary revision  or  at any time after in-
    serting the temporary revision  required  by  paragraph (g) of this AD
    and before the mandatory replacement required in paragraph (j) of this
    AD, you may replace the installed PBV,  P/N HJ1-13243-101-005  or  P/N
    HJ1-13243-101-007 with the improved design PBV, P/N HJ1-13243-101-009.
    The replacement  must be done using the Accomplishment Instructions in
    either Honda Service Bulletin SB-420-32-001, dated January 8, 2018, or
    Revision B, dated April 16, 2018. Before further flight after install-
    ing P/N HJ1-13243-101-009,  remove  the  temporary revision  from  the
    Honda HA-420 AFM.

(2) The on-condition replacement required  by paragraph (h)  of this AD is
    still required before further flight.

(k) MANDATORY REPLACEMENT

    Within the next 12 months after the effective date of this AD, replace
    the installed  PBV,  P/N HJ1-13243-101-005  or  P/N HJ1-13243-101-007,
    with the improved design PBV, P/N HJ1-13243-101-009.  The  replacement
    must  be  done  using  the Accomplishment Instructions in either Honda
    Service Bulletin SB-420-32-001,  dated January 8, 2018, or Revision B,
    dated April 16, 2018.  Before further flight after installing P/N HJ1-
    13243-101-009,  remove the temporary revision  from  the  Honda HA-420
    AFM.

(l) SPECIAL FLIGHT PERMIT

    Special flight permits for the AFM Limitations  portion of this AD are
    prohibited. Special flight permits for the PBV replacement required in
    this AD are permitted with the following limitations: One ferry flight
    including  fuel  stops,  to service center with Honda Aircraft Company
    Temporary Revision TR 01.1, dated February 16, 2018, incorporated into
    the Honda HA-420 AFM.

(m) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS)

(1) The  Manager,  Atlanta 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 identi-
    fied in paragraph (n) of this AD.

(2) Before using any approved AMOC,  notify your appropriate principal in-
    spector, or lacking  a principal inspector,  the manager of  the local
    flight standards district office/certificate holding district office.

(3) For  service  information  that  contains  steps  that  are labeled as
    Required for Compliance (RC), the provisions of paragraphs (h) through
    (j) 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.
    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.

(n) RELATED INFORMATION

(1) For more information about this AD,  contact Samuel Kovitch, Aerospace
    Engineer, Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park,
    Georgia 30337;  phone:  (404) 474-5570;  fax:  (404) 474-5605;  email:
    samuel.kovitch@faa.gov.

(2) For service information identified in this AD,  contact Honda Aircraft
    Company LLC,  6430 Ballinger Road,  Greensboro,  North Carolina 27410;
    telephone  (336) 662-0246;   internet:  http://www.hondajet.com.  FAA,
    Policy and Innovation Division,   901 Locust,   Kansas City,  Missouri
    64106. For information on the availability of this material at the FAA
    call (816) 329-4148.

Issued in Kansas City, Missouri, on May 29, 2018.  Melvin J. Johnson, Air-
craft  Certification  Service,  Deputy  Director,  Policy  and  Innovation
Division, AIR-601.

DATES: We must receive comments on this proposed AD by July 23, 2018.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0513; Product Identifier 2018-CE-013-AD]
RIN 2120-AA64

Airworthiness Directives; Honda Aircraft Company LLC

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to supersede Airworthiness Directive (AD) 2018-11-
05, which applies to certain Honda Aircraft Company (Honda) LLC Model
HA-420 airplanes. AD 2018-11-05 requires incorporating a temporary
revision into the airplane flight manual and replacing the faulty power
brake valve (PBV) upon condition. Since AD 2018-11-05 was issued as an
interim action in order to address the need for the immediate detection
of a faulty PBV, we are issuing this proposed AD to address the long-
term corrective action. This proposed AD would retain the actions
required in AD 2018-11-05, would require replacing the faulty PBV with
an improved design part at a specified time, and would prohibit future
installations of the faulty PBVs on all Honda Model HA-420 airplanes.
We are proposing this AD to address the unsafe condition on these
products.

DATES: We must receive comments on this proposed AD by July 23, 2018.

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 Honda
Aircraft Company LLC, 6430 Ballinger Road, Greensboro, North Carolina
27410; telephone (336) 662-0246; internet: http://www.hondajet.com. You
may view this service information at the FAA, Policy and Innovation
Division, 901 Locust, Kansas City, Missouri 64106. For information on
the availability of this material at the FAA, call (816) 329-4148.

Examining the AD Docket

You may examine the AD docket on the internet at http://www.regulations.
gov by searching for and locating Docket No. FAA-2018-0513;
or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
this NPRM, the regulatory evaluation, any comments received, and other
information. The street address for Docket Operations (phone: 800-647-
5527) is listed above. Comments will be available in the AD docket
shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Samuel Kovitch, Aerospace Engineer,
Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park, Georgia
30337; phone: (404) 474-5570; fax: (404) 474-5605; email:
samuel.kovitch@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

We invite you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include "Docket No. FAA-2018-0513;
Product Identifier 2018-CE-013-AD" at the beginning of your comments.
We specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this NPRM. We will consider all
comments received by the closing date and may amend this NPRM 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

We issued AD 2018-11-05, Amendment 39-19293 (83 FR 24016, May 24,
2018), ("AD 2018-11-05), for certain Honda Aircraft Company LLC
(Honda) Model HA-420 airplanes. AD 2018-11-05 requires inserting a
temporary revision into the airplane flight manual (AFM), which may be
performed by the owner/operator (pilot) holding at least a private
pilot certificate and must be entered into the airplane records showing
compliance with the AD in accordance with 14 CFR 43.9 (a)(1)-(4) and 14
CFR 91.417(a)(2)(v). AD 2018-11-05 also requires a conditional
replacement of the installed power brake valve (PBV), P/N HJ1-13243-
101-005 or P/N HJ1-13243-101-007, with an improved PBV, P/N HJ1-13243-
101-009, if any of the procedures listed in the AFM temporary revision
reveals a leaking PBV. In addition, AD 2018-11-05 provides an optional
terminating action for inserting the temporary revision into the AFM by
replacing the installed P/N HJ1-13243-101-005 or P/N HJ1-13243-101-007
with the improved P/N HJ1-13243-101-009. AD 2018-11-05 resulted from
reports of unannunciated asymmetric braking during ground operations
and landing deceleration.

We issued AD 2018-11-05 to prevent failure of the PBV, which could
cause degraded braking performance and reduced directional control
during ground operations and landing deceleration.

Actions Since AD 2018-11-05 Was Issued

Since AD 2018-11-05 was issued as an interim action in order to
address the need for the immediate detection of a faulty PBV (the
short-term action of inserting the temporary revision into the AFM), we
are issuing this proposed AD to address the long-term corrective action
(replacing the PBV).

Related Service Information Under 1 CFR Part 51

We reviewed Honda Aircraft Company Temporary Revision TR 01.1,
dated February 16, 2018, to the Honda Aircraft Company HA-420 Airplane
Flight Manual and Service Bulletin SB-420-32-001, dated January 8,
2018, and Revision B, dated April 16, 2018. Temporary Revision TR 01.1,
dated February 16, 2018, to the HA-420 Airplane Flight Manual (AFM)
describes procedures for performing pilot checks of the braking system
during ground operations before every flight and before every landing and
includes instructions for corrective actions if any indication of a
leaking PBV is found. Service Bulletin SB-420-32-001, dated January 8,
2018, and Revision B, dated April 16, 2018, describes procedures for
replacing a defective PBV with an improved design PBV. 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 the requirements of AD 2018-11-05.
This proposed AD would also require replacing the installed PBV, P/N
HJ1-13243-101-005 or P/N HJ1-13243-101-007, with the improved design
PBV, P/N HJ1-13243-101-009, at a specified time.

Differences Between This Proposed AD and the Service Information

Honda Service Bulletin SB-420-32-001, dated January 8, 2018, and
Revision B, dated April 16, 2018, specify submitting certain
information to the manufacturer. This AD does not require that action.

Costs of Compliance

We estimate that this proposed AD affects 72 airplanes of U.S.
registry.

We estimate the following costs to comply with this proposed AD:

Estimated Costs

Action Labor cost Parts cost Cost per product Cost on U.S. operators
Insert temporary revision into the airplane flight manual. 1 work-hour x $85 per hour = $85 Not applicable $85 $6,120
Replace the power brake valve (PBV). 20 work-hours x $85 per hour = $1,700 $21,878 23,578 1,697,616

Replacing the PBV was provided as an on-condition cost and an
optional terminating action in AD 2018-11-05. We have no way of
determining how many owner/operators of the affected airplanes may have
already done this proposed replacement. Therefore, we have included a
total cost for all affected airplanes.

The difference in the Cost of Compliance between AD 2018-11-05 and
this proposed AD is the proposed requirement to replace the power brake
valve at a specified time.

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.

This 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 small airplanes, gliders,
balloons, airships, domestic business jet transport airplanes, and
associated appliances to the Director of the Policy and Innovation
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

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]

2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD)
2018-11-05, Amendment 39-19293 (83 FR 24016, May 24, 2018), and adding
the following new AD: