DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0513; Product Identifier 2018-CE-013-AD; Amendment
39-19471; AD 2018-21-13]
RIN 2120-AA64

Airworthiness Directives; Honda Aircraft Company LLC

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are superseding Airworthiness Directive (AD) 2018-11-05 for
certain Honda Aircraft Company LLC (Honda) Model HA-420 airplanes. AD
2018-11-05 required incorporating a temporary revision into the
airplane flight manual (AFM) and replacing the faulty power brake valve
(PBV) upon condition. We issued AD 2018-11-05 as a short-term action to
address the immediate need to detect and replace a faulty PBV. This AD
retains the actions required in AD 2018-11-05 and requires replacing
the faulty PBV with the improved part. We are issuing this AD to
address the long-term corrective action and address the unsafe
condition on these products.

DATES: This AD is effective November 27, 2018.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 29, 2018
(83 FR 24016, May 24, 2018).
The Director of the Federal Register approved the incorporation by
reference of certain other publications listed in
this AD as of April 13, 2018 (83 FR 13401, March 29, 2018).

ADDRESSES: For service information identified in this final rule,
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. It is also available on the internet at http://www.
regulations.gov by searching for and locating Docket No. FAA-2018-0513.

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 final rule, the regulatory evaluation, any comments received, and
other information. The address for Docket Operations (phone: 800-647-
5527) is U.S. Department of Transportation, Docket Operations, M-30,
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE,
Washington, DC 20590.

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:

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to remove AD 2018-11-05, Amendment 39-19293 (83 FR 24016, May
24, 2018) (``AD 2018-11-05''), and add a new AD to correct an unsafe
condition on certain Honda Model HA-420 airplanes. We issued AD 2018-
11-05 as a short-term immediate action to detect a faulty PBV. AD 2018-
11-05 required inserting a temporary revision into the AFM and
replacing the installed PBV, part number (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 revealed a
leaking PBV. In addition, AD 2018-11-05 allowed 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 as an optional terminating action for the temporary
revision procedures in the AFM. AD 2018-11-05 resulted from reports of
unannunciated asymmetric braking during ground operations and landing
deceleration.
The NPRM published in the Federal Register on June 7, 2018 (83 FR
26381). The NPRM was issued as follow-on rulemaking to propose the
long-term actions necessary to address the faulty PBV. The NPRM
proposed to retain the requirements of AD 2018-11-05 and require
replacing the installed PBV, P/N HJ1-13243-101-005 or P/N HJ1-13243-
101-007, with the improved PBV, P/N HJ1-13243-101-009, within 12
months. We are issuing this AD to address the long-term corrective
action.

Comments

We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or on the determination of
the cost to the public.

Conclusion

We reviewed the relevant data and determined that air safety and
the public interest require adopting this AD as proposed except for
minor editorial changes. We also removed the optional terminating
action provision, which allowed operators to replace the PBV at any
time to terminate the pre-flight checks in the AFM, because that
provision was unnecessary. The requirement to replace the PBV within 12
months of the effective date of this AD provides operators with that
same option. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

We reviewed Honda AFM Temporary Revision TR 01.1, dated February
16, 2018 (temporary revision), Honda Service Bulletin SB-420-32-001,
dated January 8, 2018 (SB-420-32-001), and Honda Service Bulletin SB-
420-32-001, Revision B, dated April 16, 2018 (SB-420-32-001, Revision
B). The temporary revision contains procedures for pilot checks of the
braking system before every flight during ground operations and before
every landing, procedures for landing with a leaking PBV, and
procedures for rechecking the PBV for leaking after landing. The
temporary revision also includes instructions for corrective actions if
any indication of a leaking PBV is found after landing. SB-420-32-001
and SB-420-32-001, Revision B both contain procedures for replacing a
faulty PBV with an improved 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.

Differences Between This Proposed AD and the Service Information

SB-420-32-001 and SB-420-32-001, Revision B specify submitting
certain information to the manufacturer. This AD does not require that
action.

Costs of Compliance

We estimate that this AD affects 72 airplanes of U.S. registry.
We estimate the following costs to comply with this AD:

Estimated Costs

We provided the cost of replacing the PBV as an on-condition cost
based on the procedures in the temporary revision and as 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 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 AD is the requirement to replace the power brake valve.

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

Adoption of the Amendment

Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 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: