[Federal Register Volume 82, Number 215 (Wednesday, November 8, 2017)]
[Proposed Rules]
[Pages 51782-51786]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-24065]


========================================================================
Proposed Rules
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains notices to the public of 
the proposed issuance of rules and regulations. The purpose of these 
notices is to give interested persons an opportunity to participate in 
the rule making prior to the adoption of the final rules.

========================================================================


Federal Register / Vol. 82, No. 215 / Wednesday, November 8, 2017 / 
Proposed Rules

[[Page 51782]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0288; Product Identifier 2017-CE-007-AD]
RIN 2120-AA64


Airworthiness Directives; Textron Aviation Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Supplemental notice of proposed rulemaking (SNPRM); reopening 
of comment period.

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

SUMMARY: We are revising an earlier proposal for all Textron Aviation 
Inc. Models A36TC and B36TC airplanes. This action revises the notice 
of proposed rulemaking (NPRM) by adding all Textron Aviation Inc. 
Models S35, V35, V35A, and V35B airplanes that have the optional 
turbocharger engine installed to the applicability and adding an annual 
visual inspection of the exhaust tailpipe v-band coupling (clamp). We 
are proposing this airworthiness directive (AD) to address the unsafe 
condition on these products. Since these actions would impose an 
additional burden over those in the NPRM, we are reopening the comment 
period to allow the public the chance to comment on these changes.

DATES: The comment period for the NPRM published in the Federal 
Register on April 12, 2017 (82 FR 17594), is reopened.
    We must receive comments on this SNPRM by December 26, 2017.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
    <bullet> Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
    <bullet> Fax: 202-493-2251.
    <bullet> 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.
    <bullet> Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0288; 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 SNPRM, 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: Thomas Teplik, Aerospace Engineer, 
Wichita ACO Branch, FAA, 1801 Airport Road, Room 100, Wichita, Kansas 
67209; phone: (316) 946-4196; fax: (316) 946-4107; email: 
<a href="/cdn-cgi/l/email-protection#2d594542404c5e0359485d4144466d4b4c4c034a425b"><span class="__cf_email__" data-cfemail="6115090e0c00124f1504110d080a210700004f060e17">[email protected]</span></a>.

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-2017-0288; 
Product Identifier 2017-CE-007-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this SNPRM. We will consider all 
comments received by the closing date and may amend this SNPRM 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 SNPRM.

Discussion

    We issued an NPRM to amend 14 CFR part 39 by adding an AD that 
would apply to Textron Aviation Inc. (Textron) Models A36TC and B36TC 
airplanes. The NPRM published in the Federal Register on April 12, 2017 
(82 FR 17594). The NPRM was prompted by a fatal accident where the 
exhaust tailpipe fell off during takeoff. The NPRM proposed to add a 
life limit to the exhaust tailpipe v-band coupling (clamp) and, if the 
coupling is removed for any reason before the life limit is reached, 
require an inspection of the v-band coupling before reinstalling.

Actions Since the NPRM Was Issued

    Since we issued the NPRM, we received information that Textron 
Models S35, V35, V35A, and V35B airplanes could have a turbocharged 
reciprocating engine installed, either at manufacture as an optional 
installation or post-manufacture as a supplemental type certificate 
(STC) installation. Either engine installation would include 
installation of an affected v-band coupling. We also received comments 
to the NPRM requesting an annual visual inspection of the v-band 
couplings and requesting language changes to address the replacement of 
the engine with a non-turbocharged engine.

Comments

    We gave the public the opportunity to comment on the NPRM. The 
following presents the comments received on the NPRM and the FAA's 
response to each comment.

Request Repetitive Visual Inspections of the V-Band Coupling

    The National Transportation Safety Board (NTSB) requested we add 
repetitive visual inspections of the v-band coupling. The NTSB noted 
that the FAA included repetitive visual inspections of the v-band 
coupling in a previous AD affecting Piper Aircraft Inc. airplanes. They 
believe a similar repetitive visual inspection of the v-band coupling 
for the airplanes affected by this proposed AD, in addition to the 
proposed life limit, would help identify the cracks before failure.
    We agree with the comment, and we have added a repetitive visual 
inspection of the v-band coupling to this SNPRM.

Request To Remove Airplanes Without a Turbocharged Engine From the 
Applicability

    Gerard Terpstra requested we exclude Model A36TC airplanes that 
have STC

[[Page 51783]]

SA3523NM installed from the applicability of the AD. This STC removes 
the turbocharged engine and replaces it with a turbine engine, which 
does not include a v-band coupling affected by the proposed AD. 
Therefore, it would be impossible to comply with the AD.
    We agree with this comment, and we have modified the Applicability, 
paragraph (c), to only apply to airplanes with engine installations 
with a turbocharger that include exhaust tailpipe v-band couplings 
affected by this SNPRM.

In Favor of the AD

    Thomas P. Turner of the American Bonanza Society Air Safety 
Foundation responded in favor of the proposed AD action.

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. 
Certain changes described above expand the scope of the NPRM. As a 
result, we have determined that it is necessary to reopen the comment 
period to provide additional opportunity for the public to comment on 
this SNPRM.

Proposed Requirements of This SNPRM

    This SNPRM would require repetitive visual inspections of the 
exhaust tailpipe v-band coupling and add a life limit to the exhaust 
tailpipe v-band coupling (clamp).

Costs of Compliance

    We estimate that this proposed AD affects 731 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
            Action                Labor cost                Parts cost                product        operators
----------------------------------------------------------------------------------------------------------------
Visual inspection of the       .5 work-hour x    Not applicable.................          $42.50      $31,067.50
 exhaust tailpipe v-band        $85 per hour =
 coupling (Installed).          $42.50.
Replacement of the exhaust     2 work-hours x    $300...........................             470         343,570
 tailpipe v-band coupling.      $85 per hour =
                                $170.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary inspection that 
would require removal and reinstallation of the exhaust tailpipe v-band 
coupling. We have no way of determining the number of airplanes that 
might need this inspection:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per
                 Action                          Labor cost                  Parts cost               product
----------------------------------------------------------------------------------------------------------------
Inspection of the exhaust tailpipe v-    1.5 work-hours x $127.50   Not applicable..............         $127.50
 band coupling (Not installed, includes   per hour = $127.50.
 removal and reinstallation).
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs for the installation of part number 
N1000897-40 exhaust tailpipe v-band coupling on Models S35, V35, V35A, 
and V35B airplanes equipped with the Continental TSIO-520-D engine with 
AiResearch turbocharger during manufacture. We have no way of 
determining the number of airplanes that may do this installation:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per
                    Action                                 Labor cost               Parts cost        product
----------------------------------------------------------------------------------------------------------------
Installation of part number N1000897-40         2 work-hours x $85 per hour =               $632            $802
 exhaust tailpipe v-band coupling.               $170.
----------------------------------------------------------------------------------------------------------------

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

[[Page 51784]]

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

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

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


Sec.  39.13   [Amended]

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

Textron Aviation Inc.: Docket No. FAA-2017-0288; Product Identifier 
2017-CE-007-AD.

(a) Comments Due Date

    We must receive comments by December 26, 2017.

(b) Affected ADs

    None.

(c) Applicability

    (1) This AD applies to the following Textron Aviation Inc. 
airplanes; all serial numbers, that are certificated in any 
category:
    (i) Models A36TC and B36TC airplanes equipped with a 
turbocharged engine.
    (ii) Models S35, V35, V35A, and V35B airplanes equipped with the 
Continental TSIO-520-D engine with AiResearch turbocharger during 
manufacture; and
    (iii) Models S35, V35, V35A, and V35B airplanes equipped with 
StandardAero Supplemental Type Certificate (STC) SA1035WE.
    (2) If the one-piece v-band coupling (clamp), part number (P/N) 
NH1000897-40, is installed on Textron Aviation Inc. Models S35, V35, 
V35A, and V35B airplanes equipped with the Continental TSIO-520-D 
engine with AiResearch turbocharger during manufacture, this AD does 
not apply to those airplanes.

(d) Subject

    Joint Aircraft System Component (JASC)/Air Transport Association 
(ATA) of America Code 81, Turbocharging.

(e) Unsafe Condition

    This AD was prompted by a fatal accident where the exhaust 
tailpipe fell off during takeoff. We are issuing this AD to prevent 
failure of the exhaust tailpipe v-band coupling (clamp) that may 
lead to detachment of the exhaust tailpipe from the turbocharger and 
allow high-temperature exhaust gases to enter the engine 
compartment, which could result in an inflight fire.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done. For the purposes of this AD, the exhaust 
tailpipe v-band coupling may also be referred to as the exhaust 
tailpipe v-band clamp.

(g) Review of the Maintenance Records

    Within 50 hours time-in-service (TIS) after the effective date 
of this AD, do a maintenance records review to determine the hours 
TIS of the exhaust tailpipe v-band coupling. If unable to determine 
the hours TIS of the exhaust tailpipe v-band coupling, use the 
compliance time specified in paragraph (h)(2) of this AD.

(h) Compliance Times for Repetitive Replacement of the V-Band Coupling

    Use the following compliance times in paragraph (h)(1) or (2) 
for the repetitive replacement of the exhaust tailpipe v-band 
coupling as specified in paragraph (i) of this AD.
    (1) If from a review of the maintenance records you can 
positively identify that the hours TIS for the exhaust tailpipe v-
band coupling is less than 500 hours TIS: Do the initial replacement 
within 500 hours TIS on the exhaust tailpipe v-band coupling or 
within the next 50 hours TIS after the effective date of this AD, 
whichever occurs later, and replace repetitively thereafter at 
intervals not to exceed 500 hours TIS on the exhaust tailpipe v-band 
coupling.
    (2) If from a review of the maintenance records you can 
positively identify that the hours TIS for the exhaust tailpipe v-
band coupling is 500 hours TIS or more or you cannot positively 
identify the hours TIS for the exhaust tailpipe v-band coupling: Do 
the initial replacement within 50 hours TIS after the effective date 
of this AD and replace repetitively thereafter at intervals not to 
exceed 500 hours TIS on the exhaust tailpipe v-band coupling.

(i) Replacement of the Exhaust Tailpipe V-Band Coupling

    Replace the exhaust tailpipe v-band coupling for the airplanes 
in paragraphs (i)(1) through (3) at the applicable compliance time 
as specified in paragraph (h).

    Note 1 to paragraph (i) of this AD: We recommend after 
installation of the exhaust tailpipe v-band coupling, you do an 
engine run and recheck the torque of the v-band coupling.

    (1) Models A36TC and B36TC airplanes: Replace the exhaust 
tailpipe v-band coupling part number (P/N) N4211-375-M or P/N 5322C-
375-Z with a new exhaust tailpipe v-band coupling. When installing 
the new part, tighten the v-band coupling to 40 in-lbs., tap the 
periphery of the band to distribute tension, and torque again to 40 
in-lbs.

    Note 2 to paragraph (i)(1) of this AD:  P/Ns N4211-375-M and P/N 
5322C-375-Z are also known as P/N N4211-375M and P/N 5322C3752. The 
engineering drawings list the applicable part number v-band 
couplings as P/N N4211-375-M and P/N 5322C-375-Z; however, the parts 
catalog lists the applicable v-band couplings as P/N N4211-375M and 
P/N 5322C3752.

    (2) Models S35, V35, V35A, and V35B airplanes:
    (i) For airplanes equipped with the Continental TSIO-520-D 
engine with AiResearch turbocharger during manufacture: Replace the 
exhaust tailpipe v-band coupling P/N U4211-375-M or P/N 4404C375-M 
with a new exhaust tailpipe v-band coupling. When installing a new 
P/N U4211-375-M, tighten the v-band coupling to 60 in-lbs., tap the 
periphery of the band to distribute tension, and torque again to 60 
in-lbs. When installing a new P/N 4404C375-M, add 20 in-lbs after 
the running torque is overcome. Replacement of exhaust tailpipe v-
band coupling P/N U4211-375-M or P/N 4404C375-M with the one-piece 
v-band coupling, P/N NH1000897-40, terminates the requirements of 
this AD.

    Note 3 to paragraph (i)(2)(i) and (ii) of this AD: P/Ns U4211-
375-M and 4404C375-M may also be known as P/Ns U4211-375M and 
4404C375M or 4404C-375-M.

    (ii) For airplanes equipped with STC SA1035WE: Replace the 
exhaust tailpipe v-band coupling P/N U4211-375-M with a new exhaust 
tailpipe v-band coupling. When installing the new part, tighten the 
v-band coupling to 60 in-lbs., tap the periphery of the band to 
distribute tension, and torque again to 60 in-lbs.

(j) Repetitive Visual Inspection of the Installed Exhaust Tailpipe V-
Band Coupling

    (1) If you remove the exhaust tailpipe v-band coupling during 
your annual inspection or within the compliance time specified in 
paragraph (j)(2) of this AD, you may do the inspection specified in 
paragraph (k) of this AD in lieu of the inspection required in 
paragraph (j) of this AD. If you already have the v-band coupling 
removed, doing the detailed inspection as specified in paragraph (k) 
of this AD eliminates the possibility of having to remove and 
reinstall the v-band coupling more than once if certain conditions 
are found during the inspection required in paragraph (j) of this 
AD.
    (2) At the next annual inspection after the effective date of 
this AD or within the next 12 months after the effective date of 
this AD, whichever occurs later, and repetitively thereafter at 
intervals not to exceed 12

[[Page 51785]]

months, do a visual inspection of the installed exhaust tailpipe v-
band coupling. Use the inspection steps listed in paragraphs 
(j)(2)(i) through (vii) of this AD.
    (i) Inspect the coupling and area around the coupling for signs 
of exhaust stains, sooting, or other evidence of exhaust leakage. If 
any of those conditions are found, remove the coupling and go to the 
inspection steps in paragraph (k) of this AD for inspection of a v-
band coupling that has been removed.
    (ii) Inspect the coupling outer band for cracks, paying 
particular attention to the spot weld areas. If cracks are found, 
before further flight, you must replace the v-band coupling with a 
new v-band coupling and restart the hours TIS for the repetitive 
replacement of the v-band coupling.
    (iii) Inspect the coupling for looseness or separation of the 
outer band to the v-retainer segments(s) at all spot welds. If 
looseness or separation of the outer band to any or multiple 
retainer segments(s) is found, before further flight, you must 
replace the v-band coupling with a new v-band coupling and restart 
the hours TIS for the repetitive replacement of the v-band coupling.
    (iv) Inspect the coupling outer band for cupping, bowing, or 
crowning. If any of these conditions are found, before further 
flight, remove the coupling and go to the inspection steps in 
paragraph (k) of this AD for inspection of a v-band coupling that 
has been removed.
    (v) Inspect the area of the coupling, including the outer band, 
opposite the t-bolt for damage or distortion. If any damage or 
distortion is found, before further flight, you must replace the v-
band coupling with a new v-band coupling and restart the hours TIS 
for the repetitive replacement of the v-band coupling.
    (vi) Using a mirror, verify there is a space between each v-
retainer coupling segment below the t-bolt. If there is no space 
between each v-retainer coupling segment below the t-bolt, before 
further flight, you must replace the v-band coupling with a new v-
band coupling and restart the hours TIS for the repetitive 
replacement of the v-band coupling.
    (vii) Verify the v-band coupling nut is properly torqued as 
specified in paragraphs (j)(2)(vii)(A) through (C) of this AD:
    (A) For P/N N4211-375-M or P/N 5322C-375-Z exhaust tailpipe v-
band coupling, torque to 40 in-lbs.
    (B) For P/N U4211-375-M exhaust tailpipe v-band coupling, torque 
to 60 in-lbs.
    (C) For 4404C375-M exhaust tailpipe v-band coupling, verify the 
nut is secure. If not secure, before further flight, loosen and 
verify running torque and add 20 in-lbs to the running torque when 
tightened.
    (3) These inspections do not terminate the 500-hour TIS 
repetitive replacement of the v-band coupling and do not restart the 
hours TIS for the repetitive replacement of the v-band coupling.

(k) Visual Inspection of a Removed Exhaust Tailpipe V-Band Coupling

    (1) If during the visual inspection required in paragraph (j) of 
this AD you are required to remove of the exhaust tailpipe v-band 
coupling to do a more detailed inspection, you must do the 
inspection steps listed in paragraphs (k)(1) and (2) of this AD. If 
you removed the exhaust tailpipe v-band coupling during the annual 
inspection or within the compliance time specified in paragraph 
(j)(2) of this AD, you may do the inspection specified in paragraph 
(k) of this AD in lieu of the inspection required in paragraph (j) 
of this AD. If you already have the v-band coupling removed, doing 
the detailed inspection as specified in paragraph (k) of this AD 
eliminates the possibility of having to remove and reinstall the v-
band coupling more than once if certain conditions are found during 
the inspection required in paragraph (j) of this AD.
    (i) Use crocus cloth and mineral spirits/Stoddard solvent, to 
clean the outer band of the v-band coupling. Pay particular 
attention to the spot weld areas on the coupling. If during cleaning 
corrosion cannot be removed or pitting of the v-band coupling is 
found, do not re-install the v-band coupling. Before further flight, 
you must install a new v-band coupling and restart the hours TIS for 
the repetitive replacement of the v-band coupling.
    (ii) Use a 10X magnifier to visually inspect the outer band for 
cracks, paying particular attention to the spot weld areas. If 
cracks are found during this inspection, do not re-install the v-
band coupling. Before further flight, you must install a new v-band 
coupling and restart the hours TIS for the repetitive replacement of 
the v-band coupling.
    (iii) Visually inspect the flatness of the outer band using a 
straight edge. Lay the straight edge across the width of the outer 
band. The gap must be less than 0.062 inches. See figure 1 to 
paragraphs (k)(1)(iii) and (v) of this AD. If the gap exceeds 0.062 
inches between the outer band and the straight edge, do not re-
install the v-band coupling. Before further flight, you must install 
a new v-band coupling and restart the hours TIS for the repetitive 
replacement of the v-band coupling.
[GRAPHIC] [TIFF OMITTED] TP08NO17.000

    (iv) With the t-bolt in the 12 o'clock position, visually 
inspect the coupling for the attachment of the outer band to the v-
retainer coupling segments by inspecting for gaps between the outer 
band and the v-retainer coupling segments between approximately

[[Page 51786]]

the 1 o'clock through 11 o'clock position. It is recommended to use 
backlighting to see gaps. If gaps between the outer band and the v-
retainer coupling segments are found, do not re-install the v-band 
coupling. Before further flight, you must install a new v-band 
coupling and restart the hours TIS for the repetitive replacement of 
the v-band coupling.
    (v) Visually inspect the bend radii of the coupling v-retainer 
coupling segments for cracks. Inspect the radii throughout the 
length of the segment. See figure 1 to paragraphs (k)(1)(iii) and 
(v) of this AD. If any cracks are found, do not re-install the v-
band coupling. Before further flight, you must install a new v-band 
coupling and restart the hours TIS for the repetitive replacement of 
the v-band coupling.
    (vi) Visually inspect the outer band opposite the t-bolt for 
damage (distortion, creases, bulging, or cracks), which may be 
caused from excessive spreading of the coupling during installation 
and/or removal. If any damage is found, do not re-install the v-band 
coupling. Before further flight, you must install a new v-band 
coupling and restart the hours TIS for the repetitive replacement of 
the v-band coupling.
    (2) If the removed exhaust tailpipe v-band coupling passes all 
of the inspection steps listed in paragraphs (k)(1)(i) through (vi) 
of this AD, you may re-install the same v-band coupling. After the 
coupling is re-installed and torqued as specified in Replacement of 
the V-Band Coupling, paragraph (i) of this AD, verify there is space 
between each v-retainer coupling segment below the t-bolt. If there 
is no space between each v-retainer coupling segment below the t-
bolt, before further flight, you must install a new v-band coupling 
and restart the hours TIS for the repetitive replacement of the v-
band coupling.
    (3) The inspections required in paragraphs (k)(1) and (2) of 
this AD only apply to re-installing the same exhaust tailpipe v-band 
coupling that was removed as specified in paragraph (j) of this AD. 
It does not apply to installation of a new v-band coupling. These 
inspections do not terminate the 500-hour TIS repetitive replacement 
of the v-band coupling and do not restart the hours TIS for the 
repetitive replacement of the v-band coupling.
    (4) As of the effective date of this AD, do not install a used 
exhaust tailpipe v-band coupling on the airplane except for the 
reinstallation of the inspected exhaust tailpipe v-band coupling 
that was removed as specified in paragraphs (j) and (k) of this AD.

(l) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Wichita ACO Branch, FAA, has the authority to 
approve AMOCs for this AD, if requested using the procedures found 
in 14 CFR 39.19. The Manager, Chicago ACO Branch, FAA, has the 
authority to approve AMOCs concerning STC SA1035WE, 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 Wichita ACO Branch, send 
it to the attention of the person identified in paragraph (m) of 
this AD. If sending information directly to the manager of the 
Chicago ACO Branch, send it to the attention of John Tallarovic, 
Aerospace Engineer, AIR-7C3 Chicago ACO Branch, 2300 East Devon 
Avenue, Des Plaines, IL 60018-4696; telephone: (847) 294-8180; fax: 
(847) 294-7834; email: <a href="/cdn-cgi/l/email-protection#b4dedbdcda9ad99ac0d5d8d8d5c6dbc2ddd7f4d2d5d59ad3dbc2"><span class="__cf_email__" data-cfemail="a4cecbccca8ac98ad0c5c8c8c5d6cbd2cdc7e4c2c5c58ac3cbd2">[email protected]</span></a>.
    (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.

(m) Related Information

    For more information about this AD, contact Thomas Teplik, 
Aerospace Engineer, Wichita ACO Branch, FAA, 1801 Airport Road, Room 
100, Wichita, Kansas 67209; phone: (316) 946-4196; fax: (316) 946-
4107; email: <a href="/cdn-cgi/l/email-protection#d7a3bfb8bab6a4f9a3b2a7bbbebc97b1b6b6f9b0b8a1"><span class="__cf_email__" data-cfemail="3a4e5255575b49144e5f4a5653517a5c5b5b145d554c">[email protected]</span></a>.

    Issued in Kansas City, Missouri, on October 23, 2017.
William Schinstock,
Acting Deputy Director, Policy & Innovation Division, Aircraft 
Certification Service.
[FR Doc. 2017-24065 Filed 11-7-17; 8:45 am]
BILLING CODE 4910-13-P


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