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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-1120; Product Identifier 2017-CE-030-AD]
RIN 2120-AA64
Airworthiness Directives; Textron Aviation Inc. Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: We propose to adopt a new airworthiness directive (AD)
for
certain Textron Aviation Inc. Models 510, 680, and 680A airplanes
equipped with certain part number brake assemblies. This proposed AD
was prompted by a report that brake pad wear indicator pins were set
incorrectly, which could lead to brake pad wear beyond the acceptable
limits without indication. This proposed AD would require inspection of
the brake pad wear indicator pins and replacement of the brake assembly
if any pin is set incorrectly. We are proposing this AD to address the
unsafe condition on these products.
DATES: We must receive comments on this proposed AD by January
25, 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 Textron
Aviation Inc., One Cessna Boulevard, P.O. Box 7704, Wichita, Kansas
67277; phone: 316-517-6215; email: citationpubs@txtav.com; Internet:
https://support.cessna.com/custsupt/csupport/newlogin.jsp; or UTC
Aerospace Systems, Goodrich Corporation, 101 Waco Street, P.O. Box 340,
Troy, Ohio 45373; phone: 937-339-3811; email: awb.techpubs@utas.utc.com;
Internet: https://www.customers.utcaerospacesystems.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-2017-1120;
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 NPRM, 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 One of the Following:
For the Model 510: David Enns, Aerospace Engineer, Wichita ACO Branch,
FAA, 1801 Airport Road, Room 100, Wichita, Kansas 67209; phone: 316-946-
4147; fax: 913-946-4107; email: david.enns@faa.gov; or
For the Models 680 and 680A: Adam Hein, Aerospace Engineer, Wichita ACO
Branch, FAA, 1801 Airport Road, Room 100, Wichita, Kansas 67209; phone:
316-946-4116; fax: 316-946-4107; email: adam.hein@faa.gov.
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-2017-1120;
Product Identifier 2017-CE-030-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 NPRM.
Discussion
We received information from UTC Aerospace Systems (UTC) that brake
pad wear indicator pins were set incorrectly on certain Textron
Aviation Inc. (Textron) Models 510, 680, and 680A airplanes equipped
with brake assemblies, part numbers (P/Ns) 2-1706-1 and 2-1675-1, with
certain serial numbers. Brakes overhauled by UTC may have wear
indicator pins set longer than specified. UTC discovered this condition
during their inspection of incoming brakes. This condition, if not
corrected, could result in brake pad wear beyond the acceptable limits
without indication and consequent loss of braking ability, which could
lead to a runway excursion.
Related Service Information Under 1 CFR Part 51
We reviewed UTC Service Bulletin 2-1706-1-32-1, Revision 1, dated
July 18, 2017; and UTC Service Bulletin 2-1675-32-2, Revision 1, dated
July 18, 2017. For the applicable models, the service information
identifies the affected serial number brake assemblies and describes
procedures for inspecting the wear indicator pins. 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. These UTC service bulletins are
included as attachments with the Textron service letters discussed in
the Other Related Service Information paragraph.
Other Related Service Information
We also reviewed Textron Aviation Inc. Service Letters SL510-32-08,
SL680-32-15, and SL680A-32-05, all dated July 21, 2017. For the
applicable airplane models, these service letters direct the operators
to use Goodrich Service Bulletins 2-1706-1-32-1 and 2-1675-32-2.
However, the Goodrich Service Bulletins that the Textron Aviation Inc.
Service Letters refer to and intend for operators to use are titled UTC
Aerospace Systems Service Bulletin 2-1706-1-32-1, Revision 1, dated
July 18, 2017; and UTC Aerospace Systems Service Bulletin 2-1675-32-2,
Revision 1, dated July 18, 2017. The UTC service bulletins are included
as attachments to the Textron service letters.
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 require accomplishing the actions specified
in the service information described previously.
Costs of Compliance
We estimate that this proposed AD affects 668 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 |
| Inspection of the brake assembly
wear indicator pins for Models 680 and 680A |
1 work-hour x $85 per hour =
$85 |
Not applicable |
$85 |
$31,790 |
| Inspection of the brake assembly
wear indicator pins for Model 510 |
.5 work-hour x $85 per hour =
$42.50 |
Not applicable |
42.50 |
12,495 |
We estimate the following costs to
do any necessary replacement
that would be required based on the results of the proposed inspection.
We have no way of determining the number of airplanes that might need
these replacements:
On-Condition Costs
| Action |
Labor cost |
Parts cost |
Cost per product |
| Replacement of the brake assembly
for Models 680 and 680A |
8 work-hours x $85 per hour =
$680 |
$106,164 |
$106,844 |
| Replacement of the brake assembly
for Model 510 |
3 work-hours x $85 per hour =
$255 |
10,828 |
11,083 |
According to the manufacturer, 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 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, 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 and domestic
business jet transport airplanes to the Director of the Policy and
Innovation Division.
Regulatory Findings
We determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would not
have a substantial direct effect on the States, on the relationship
between the national Government and the States, or on the distribution
of power and responsibilities among the various levels of government.
For the reasons discussed above, I certify this proposed
regulation:
(1) Is not a "significant regulatory action" under Executive
Order 12866,
(2) Is not a "significant rule" under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, 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 adding the following new airworthiness
directive (AD):
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