81 FR 17109 - Airworthiness Directives; Various Aircraft Equipped With BRP-Powertrain GmbH & Co KG 912 A Series Engine

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 59 (March 28, 2016)

Page Range		17109-17111
FR Document		2016-06279
We propose to adopt a new airworthiness directive (AD) for various aircraft equipped with a BRP-Powertrain GmbH & Co KG (formerly Rotax Aircraft Engines) 912 A series engine. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as a design change of the engine cylinder head temperature sensor without a concurrent revision of the engine model designation, the engine part number, or the cockpit indication to the pilot. We are issuing this proposed AD to require actions to address the unsafe condition on these products.
Federal Register, Volume 81 Issue 59 (Monday, March 28, 2016)
[Federal Register Volume 81, Number 59 (Monday, March 28, 2016)]
[Proposed Rules]
[Pages 17109-17111]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-06279]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-4878; Directorate Identifier 2016-CE-001-AD]
RIN 2120-AA64


Airworthiness Directives; Various Aircraft Equipped With BRP-
Powertrain GmbH & Co KG 912 A Series Engine

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
various aircraft equipped with a BRP-Powertrain GmbH & Co KG (formerly 
Rotax Aircraft Engines) 912 A series engine. This proposed AD results 
from mandatory continuing airworthiness information (MCAI) originated 
by an aviation authority of another country to identify and correct an 
unsafe condition on an aviation product. The MCAI describes the unsafe 
condition as a design change of the engine cylinder head temperature 
sensor without a concurrent revision of the engine model designation, 
the engine part number, or the cockpit indication to the pilot. We are 
issuing this proposed AD to require actions to address the unsafe 
condition on these products.

DATES: We must receive comments on this proposed AD by May 12, 2016.

ADDRESSES: You may send comments 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: 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.
    For service information identified in this proposed AD, contact 
BRP-Powertrain GmbH & Co. KG, Welser Strasse 32, A-4623 Gunskirchen, 
Austria; phone: +43 7246 601 0; fax: +43 7246 601 9130; Internet: 
www.rotax-aircraft-engines.com. You may review this referenced service 
information at the FAA, Small Airplane Directorate, 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-2016-
4878; 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 (telephone (800) 647-5527) is in the ADDRESSES section. Comments 
will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Jim Rutherford, Aerospace Engineer, 
FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, 
Missouri 64106; telephone: (816) 329-4165; fax: (816) 329-4090; email: 
[email protected].

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-2016-4878; 
Directorate Identifier 2016-CE-001-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://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

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Community, has issued AD 
No.: 2015-0240, dated December 18, 2015, to correct an unsafe condition 
for the specified products. The MCAI states:

    A design change of the engine cylinder heads was introduced by 
BRP-Powertrain in March 2013 which modifies the engine/aircraft 
interfaces by substituting the

[[Page 17110]]

previous cylinder head temperature (CHT) measurement (limit 
temperature 135 [deg]C/150 [deg]C) with a coolant temperature (CT) 
measurement (limit temperature 120 [deg]C). The design change was 
communicated on 15 May 2013 by BRP-Powertrain Service Instruction 
(SI) 912-020R7/914-022R7 (single document) but was not identified by 
a change of the engine model designation or of the engine P/N, but 
only through the cylinder head P/N and the position of the 
temperature sensor.
    Consequently, engines with the new cylinder heads (installed 
during production or replaced in-service during maintenance) may be 
installed on an aircraft without concurrent modification of that 
aircraft, instructions for which should be provided by the Type 
Certificate (TC) holder or Supplemental Type Certificate (STC) 
holder, as applicable. In this case, the coolant temperature with a 
maximum engine operating limit of 120 [deg]C (valid for engines 
operated with water diluted glycol coolant) is displayed on a CHT 
indicator with a typical limit marking (red radial/range) of more 
than 120 [deg]C.
    This condition, if not detected and corrected, will prevent the 
pilot to identify coolant limit exceedances, with subsequent loss of 
coolant (120 [deg]C is the boiling temperature of the coolant), 
which could lead to engine in-flight shut-down, possibly resulting 
in a forced landing, with consequent damage to the aircraft and 
injury to occupants.
    BRP-Powertrain published revised SI-912-020R8/914-022R8 to 
clarify that, on the new cylinder heads, the coolant temperature, 
instead of the cylinder head temperature in the aluminium, is 
measured. EASA issued SIB 2014-34 to raise awareness that 
installation of affected engines and spare parts, without concurrent 
incorporation of aircraft TC/STC holder approved modifications, and 
even if unintended and unnoticed by production or maintenance, 
constitutes an unapproved aircraft modification.
    Since EASA published the SIB, further investigation has finally 
determined that sufficient reason exists to warrant AD action.
    For the reason stated above, this AD requires a one-time 
inspection to determine the actual engine configuration and, 
depending on findings, engine reidentification and (depending on TC 
or STC holder installation) modification of the affected aircraft. 
This also affects engines that are operated with waterless coolant.

You may examine the MCAI on the Internet at http://www.regulations.gov 
by searching for and locating Docket No. FAA-2016-4878.

Related Service Information Under 1 CFR Part 51

    BRP-Powertrain GmbH & CO KG has issued Rotax Aircraft Engines BRP 
Service Bulletin SB-912-068 and SB-914-049 (co-published as one 
document), dated April 16, 2015. The service information describes 
procedures for re-identifying the engine that has new cylinder heads, 
part numbers 413235 and 413236 installed. 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 of this NPRM.

FAA's Determination and Requirements of the Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with this State of Design Authority, they 
have notified us of the unsafe condition described in the MCAI and 
service information referenced above. We are proposing this AD because 
we evaluated all information and determined the unsafe condition exists 
and is likely to exist or develop on other products of the same type 
design.

Costs of Compliance

    We estimate that this proposed AD would affect 65 products of U.S. 
registry.
    We also estimate that it would take about 1 work-hour per product 
to comply with the engine re-identification requirement of this 
proposed AD. The average labor rate is $85 per work-hour.
    Based on these figures, we estimate the cost of this portion of 
this proposed AD on U.S. operators to be $5,525, or $85 per product.
    We also estimate that it would take about 1 work-hour per product 
to comply with the engine installation modification to indicate a 
Maximum Coolant Temperature requirement of this proposed AD. The 
average labor rate is $85 per work-hour.
    Based on these figures, we estimate the cost of this portion of 
this proposed AD on U.S. operators to be $5,525, or $85 per product.
    We also estimate that it would take about 1.5 work-hours per 
product to comply with the cylinder head replacement option of this 
proposed AD. The average labor rate is $85 per work-hour. Required 
parts would cost about $2,500 to replace a single engine cylinder head.
    Based on these figures, we estimate the cost of this portion of 
this proposed AD on U.S. operators to be $2,627.50 per engine cylinder 
head.

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.

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

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 AD:

Various Aircraft: Docket No. FAA-2016-4878; Directorate Identifier 
2016-CE-001-AD.

[[Page 17111]]

(a) Comments Due Date

    We must receive comments by May 12, 2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all serial numbers of the airplanes listed in 
table 1 of paragraph (c) of this AD, that are:
    (1) Equipped with a BRP-Powertrain GmbH & Co KG (formerly Rotax 
Aircraft Engines) 912 A series engine with a part number (P/N) 
413235 or 413236 cylinder head installed in position 2 or 3; and
    (2) certificated in any category.

              Table 1 of Paragraph (c)--Affected Airplanes
------------------------------------------------------------------------
   Type certificate holder         Aircraft model        Engine model
------------------------------------------------------------------------
Aeromot-Ind[uacute]stria       AMT-200..............              912 A2
 Mec[acirc]nico-
 Metal[uacute]rgica Ltda.
Diamond Aircraft Industries..  HK 36 R ``SUPER                     912 A
                                DIMONA''.
DIAMOND AIRCRAFT INDUSTRIES    HK 36 TS and HK 36 TC              912 A3
 GmbH.
Diamond Aircraft Industries    DA20-A1..............              912 A3
 Inc.
HOAC-Austria.................  DV 20 KATANA.........              912 A3
Iniziative Industriali         Sky Arrow 650 TC.....              912 A2
 Italiane S.p.A.
SCHEIBE-Flugzeugbau GmbH.....  SF 25C...............      912 A2, 912 A3
------------------------------------------------------------------------

(d) Subject

    Air Transport Association of America (ATA) Code 72: Engine--
Reciprocating.

(e) Reason

    This AD was prompted by design change of the engine cylinder 
head temperature sensor without a concurrent revision of the engine 
model designation, the engine part number, or the cockpit indication 
to the pilot. The sensor now measures the coolant temperature rather 
than the cylinder head temperature. If the engine coolant 
temperature with a maximum engine operating limit of 120 [deg]C is 
displayed on a Cylinder Head Temperature indicator with a typical 
limit marking greater than 120 [deg]C, the pilot will be unable to 
identify coolant temperature limit exceedances. This could result in 
loss of coolant, which could cause an inflight engine shutdown and 
forced landing.

(f) Actions and Compliance

    Unless already done, do the following actions:
    (1) Within 6 months after the effective date of this AD, for 
engines with cylinder heads listed in paragraph (c)(1) of this AD 
installed on both position 2 and position 3, change the engine model 
designation on the engine type data plate to include a ``-01'' 
suffix following paragraph 3.1.1) of the Accomplishment/Instructions 
in Rotax Aircraft Engines BRP Service Bulletin SB-912-068 and SB-
914-049 (co-published as one document), dated April 16, 2015.
    (2) Within 6 months after the effective date of this AD, for 
engines with only one cylinder head listed paragraph (c)(1) of this 
AD installed in a position 2 or 3, in order to keep such cylinder 
installed, you must replace the cylinder head installed on the 
unchanged position (2 or 3, as applicable) with a cylinder head 
having a P/N listed in paragraph (c)(1) of this AD, and change the 
engine model designation on the engine type data plate to include a 
``-01'' suffix following paragraph 3.1.1) of the Accomplishment/
Instructions in Rotax Aircraft Engines BRP Service Bulletin SB-912-
068 and SB-914-049 (co-published as one document), dated April 16, 
2015.
    (3) Before further flight after doing the required actions in 
paragraphs (f)(1) or (f)(2) of this AD as applicable, modify the 
aircraft and related documentation to indicate a Maximum Coolant 
Temperature limit of 120 [deg]C using FAA-approved procedures.
    (i) Such procedures can be found by contacting your aircraft 
type certificate holder or the FAA contact specified in paragraph 
(g)(1) of this AD. The service documents referenced in paragraph (h) 
of this AD are examples of FAA-approved procedures for the 
applicable aircraft.
    (ii) These re-identified engines remain eligible for 
installation on approved aircraft-engine combinations.
    (4) As of the effective date of this AD, do not install any 
other P/N cylinder head unless that installation is done following 
approved instructions provided by BRP-Powertrain at the address 
provided in paragraph (h) of this AD.

(g) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Standards Office, FAA, has the authority to approve AMOCs for this 
AD, if requested using the procedures found in 14 CFR 39.19. Send 
information to ATTN: Jim Rutherford, Aerospace Engineer, FAA, Small 
Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 
64106; telephone: (816) 329-4165; fax: (816) 329-4090; email: 
[email protected]. Before using any approved AMOC on any 
airplane to which the AMOC applies, notify your appropriate 
principal inspector (PI) in the FAA Flight Standards District Office 
(FSDO), or lacking a PI, your local FSDO.
    (2) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they are approved by the State of Design Authority 
(or their delegated agent). You are required to assure the product 
is airworthy before it is returned to service.

(h) Related Information

    Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 
2015-0240, dated December 18, 2015; Rotax Aircraft Engines BRP 
Service Bulletin SB-912-066 R1/SB-914-047 R1 (published as one 
document), Revision 1, dated April 23, 2015; Diamond Aircraft 
Industries GmbH Optional Service Bulletin OSB 36-111, dated 
September 17, 2015; Diamond Aircraft Industries GmbH Work 
Instruction WI-OSB 36-111, dated September 17, 2015; Diamond 
Aircraft Service Bulletin No.: DA20-72-04, dated January 22, 2015; 
Diamond Aircraft Industries GmbH Optional Service Bulletin OSB 20-
066, dated September 17, 2015; Diamond Aircraft Industries GmbH Work 
Instruction WI-OSB 20-066, dated September 17, 2015; and Scheibe 
Aircraft GmbH Service Information 02/14-1, dated December 15, 2014, 
for related information. You may examine the MCAI on the Internet at 
http://www.regulations.gov by searching for and locating Docket No. 
FAA-2016-4878. For service information related to this AD, contact 
BRP-Powertrain GmbH & Co. KG, Welser Strasse 32, A-4623 Gunskirchen, 
Austria; phone: +43 7246 601 0; fax: +43 7246 601 9130; Internet: 
http://www.rotax-aircraft-engines.com. You may review this 
referenced service information at the FAA, Small Airplane 
Directorate, 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 March 10, 2016.
Pat Mullen,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-06279 Filed 3-25-16; 8:45 am]
 BILLING CODE 4910-13-P
Federal Register / Vol. 81, No. 59 / Monday, March 28, 2016 / Proposed Rules 17109

Room 301, Kansas City, Missouri 64106; DEPARTMENT OF TRANSPORTATION the FAA, Small Airplane Directorate,
telephone: (816) 329–4059; fax: (816) 329– 901 Locust, Kansas City, Missouri
4090; email: doug.rudolph@faa.gov. Before Federal Aviation Administration 64106. For information on the
using any approved AMOC on any airplane availability of this material at the FAA,
to which the AMOC applies, notify your 14 CFR Part 39 call (816) 329–4148.
appropriate principal inspector (PI) in the
[Docket No. FAA–2016–4878; Directorate Examining the AD Docket
FAA Flight Standards District Office (FSDO),
Identifier 2016–CE–001–AD]
or lacking a PI, your local FSDO. You may examine the AD docket on
(2) Airworthy Product: For any requirement RIN 2120–AA64 the Internet at http://
in this AD to obtain corrective actions from www.regulations.gov by searching for
a manufacturer or other source, use these Airworthiness Directives; Various and locating Docket No. FAA–2016–
actions if they are FAA-approved. Corrective Aircraft Equipped With BRP- 4878; or in person at the Docket
actions are considered FAA-approved if they Powertrain GmbH & Co KG 912 A Management Facility between 9 a.m.
are approved by the State of Design Authority Series Engine and 5 p.m., Monday through Friday,
(or their delegated agent). You are required except Federal holidays. The AD docket
AGENCY: Federal Aviation
to assure the product is airworthy before it contains this proposed AD, the
Administration (FAA), Department of
is returned to service. regulatory evaluation, any comments
Transportation (DOT).
(3) Reporting Requirements: For any received, and other information. The
reporting requirement in this AD, a federal ACTION: Notice of proposed rulemaking
(NPRM). street address for the Docket Office
agency may not conduct or sponsor, and a (telephone (800) 647–5527) is in the
person is not required to respond to, nor SUMMARY: We propose to adopt a new ADDRESSES section. Comments will be
shall a person be subject to a penalty for airworthiness directive (AD) for various available in the AD docket shortly after
failure to comply with a collection of
aircraft equipped with a BRP-Powertrain receipt.
information subject to the requirements of
GmbH & Co KG (formerly Rotax Aircraft FOR FURTHER INFORMATION CONTACT: Jim
the Paperwork Reduction Act unless that
Engines) 912 A series engine. This Rutherford, Aerospace Engineer, FAA,
collection of information displays a current
proposed AD results from mandatory Small Airplane Directorate, 901 Locust,
valid OMB Control Number. The OMB
continuing airworthiness information Room 301, Kansas City, Missouri 64106;
Control Number for this information
(MCAI) originated by an aviation telephone: (816) 329–4165; fax: (816)
collection is 2120–0056. Public reporting for
this collection of information is estimated to
authority of another country to identify 329–4090; email: jim.rutherford@
be approximately 5 minutes per response,
and correct an unsafe condition on an faa.gov.
including the time for reviewing instructions,
aviation product. The MCAI describes
SUPPLEMENTARY INFORMATION:
completing and reviewing the collection of the unsafe condition as a design change
information. All responses to this collection of the engine cylinder head temperature Comments Invited
of information are mandatory. Comments sensor without a concurrent revision of We invite you to send any written
concerning the accuracy of this burden and the engine model designation, the relevant data, views, or arguments about
suggestions for reducing the burden should engine part number, or the cockpit this proposed AD. Send your comments
be directed to the FAA at: 800 Independence indication to the pilot. We are issuing to an address listed under the
Ave. SW., Washington, DC 20591, Attn: this proposed AD to require actions to ADDRESSES section. Include ‘‘Docket No.
Information Collection Clearance Officer, address the unsafe condition on these FAA–2016–4878; Directorate Identifier
AES–200. products. 2016–CE–001–AD’’ at the beginning of
(h) Related Information DATES: We must receive comments on your comments. We specifically invite
this proposed AD by May 12, 2016. comments on the overall regulatory,
Refer to MCAI EASA AD No.: 2016–0037,
ADDRESSES: You may send comments by economic, environmental, and energy
dated February 26, 2016, for related
any of the following methods: aspects of this proposed AD. We will
information. You may examine the MCAI on
the Internet at http://www.regulations.gov by
• Federal eRulemaking Portal: Go to consider all comments received by the
http://www.regulations.gov. Follow the closing date and may amend this
searching for and locating Docket No. FAA–
2016–5284. For service information related to
instructions for submitting comments. proposed AD because of those
this AD, contact PILATUS AIRCRAFT LTD.,
• Fax: (202) 493–2251. comments.
Customer Support Manager, CH–6371
• Mail: U.S. Department of We will post all comments we
STANS, Switzerland; phone: +41 (0)41 619
Transportation, Docket Operations, M– receive, without change, to http://
33 33; fax: +41 (0)41 619 73 11; email: 30, West Building Ground Floor, Room regulations.gov, including any personal
SupportPC12@pilatus-aircraft.com; internet: W12–140, 1200 New Jersey Avenue SE., information you provide. We will also
http://www.pilatus-aircraft.com. You may Washington, DC 20590. post a report summarizing each
review this referenced service information at • Hand Delivery: U.S. Department of substantive verbal contact we receive
the FAA, Small Airplane Directorate, 901 Transportation, Docket Operations, M– about this proposed AD.
Locust, Kansas City, Missouri 64106. For 30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE., Discussion
information on the availability of this
material at the FAA, call (816) 329–4148. Washington, DC 20590, between 9 a.m. The European Aviation Safety Agency
and 5 p.m., Monday through Friday, (EASA), which is the Technical Agent
Issued in Kansas City, Missouri, on March except Federal holidays. for the Member States of the European
18, 2016.
Lhorne on DSK5TPTVN1PROD with PROPOSALS

For service information identified in Community, has issued AD No.: 2015–
Pat Mullen, this proposed AD, contact BRP- 0240, dated December 18, 2015, to
Acting Manager, Small Airplane Directorate, Powertrain GmbH & Co. KG, Welser correct an unsafe condition for the
Aircraft Certification Service. Strasse 32, A–4623 Gunskirchen, specified products. The MCAI states:
[FR Doc. 2016–06818 Filed 3–25–16; 8:45 am] Austria; phone: +43 7246 601 0; fax: +43 A design change of the engine cylinder
BILLING CODE 4910–13–P 7246 601 9130; Internet: www.rotax- heads was introduced by BRP-Powertrain in
aircraft-engines.com. You may review March 2013 which modifies the engine/
this referenced service information at aircraft interfaces by substituting the

VerDate Sep<11>2014 14:51 Mar 25, 2016 Jkt 238001 PO 00000 Frm 00012 Fmt 4702 Sfmt 4702 E:\FR\FM\28MRP1.SGM 28MRP1
17110 Federal Register / Vol. 81, No. 59 / Monday, March 28, 2016 / Proposed Rules

previous cylinder head temperature (CHT) that has new cylinder heads, part Aviation Programs,’’ describes in more
measurement (limit temperature 135 °C/150 numbers 413235 and 413236 installed. detail the scope of the Agency’s
°C) with a coolant temperature (CT) This service information is reasonably authority.
measurement (limit temperature 120 °C). The available because the interested parties We are issuing this rulemaking under
design change was communicated on 15 May the authority described in ‘‘Subtitle VII,
2013 by BRP-Powertrain Service Instruction
have access to it through their normal
(SI) 912–020R7/914–022R7 (single course of business or by the means Part A, Subpart III, section 44701:
document) but was not identified by a change identified in the ADDRESSES section of General requirements.’’ Under that
of the engine model designation or of the this NPRM. section, Congress charges the FAA with
engine P/N, but only through the cylinder promoting safe flight of civil aircraft in
head P/N and the position of the temperature FAA’s Determination and Requirements air commerce by prescribing regulations
sensor. of the Proposed AD for practices, methods, and procedures
Consequently, engines with the new This product has been approved by the Administrator finds necessary for
cylinder heads (installed during production the aviation authority of another safety in air commerce. This regulation
or replaced in-service during maintenance) country, and is approved for operation is within the scope of that authority
may be installed on an aircraft without because it addresses an unsafe condition
in the United States. Pursuant to our
concurrent modification of that aircraft,
instructions for which should be provided by bilateral agreement with this State of that is likely to exist or develop on
the Type Certificate (TC) holder or Design Authority, they have notified us products identified in this rulemaking
Supplemental Type Certificate (STC) holder, of the unsafe condition described in the action.
as applicable. In this case, the coolant MCAI and service information Regulatory Findings
temperature with a maximum engine referenced above. We are proposing this
operating limit of 120 °C (valid for engines AD because we evaluated all We determined that this proposed AD
operated with water diluted glycol coolant) is information and determined the unsafe would not have federalism implications
displayed on a CHT indicator with a typical condition exists and is likely to exist or under Executive Order 13132. This
limit marking (red radial/range) of more than proposed AD would not have a
develop on other products of the same
120 °C. substantial direct effect on the States, on
This condition, if not detected and type design.
the relationship between the national
corrected, will prevent the pilot to identify Costs of Compliance Government and the States, or on the
coolant limit exceedances, with subsequent
loss of coolant (120 °C is the boiling We estimate that this proposed AD distribution of power and
temperature of the coolant), which could lead would affect 65 products of U.S. responsibilities among the various
to engine in-flight shut-down, possibly registry. levels of government.
resulting in a forced landing, with We also estimate that it would take For the reasons discussed above, I
consequent damage to the aircraft and injury about 1 work-hour per product to certify this proposed regulation:
to occupants. comply with the engine re-identification (1) Is not a ‘‘significant regulatory
BRP-Powertrain published revised SI–912– requirement of this proposed AD. The action’’ under Executive Order 12866,
020R8/914–022R8 to clarify that, on the new
average labor rate is $85 per work-hour. (2) Is not a ‘‘significant rule’’ under
cylinder heads, the coolant temperature, the DOT Regulatory Policies and
instead of the cylinder head temperature in
Based on these figures, we estimate
the cost of this portion of this proposed Procedures (44 FR 11034, February 26,
the aluminium, is measured. EASA issued 1979),
SIB 2014–34 to raise awareness that AD on U.S. operators to be $5,525, or
$85 per product. (3) Will not affect intrastate aviation
installation of affected engines and spare
parts, without concurrent incorporation of We also estimate that it would take in Alaska, and
aircraft TC/STC holder approved about 1 work-hour per product to (4) Will not have a significant
modifications, and even if unintended and comply with the engine installation economic impact, positive or negative,
unnoticed by production or maintenance, modification to indicate a Maximum on a substantial number of small entities
constitutes an unapproved aircraft Coolant Temperature requirement of under the criteria of the Regulatory
modification. this proposed AD. The average labor Flexibility Act.
Since EASA published the SIB, further
investigation has finally determined that
rate is $85 per work-hour. List of Subjects in 14 CFR Part 39
sufficient reason exists to warrant AD action. Based on these figures, we estimate Air transportation, Aircraft, Aviation
For the reason stated above, this AD the cost of this portion of this proposed safety, Incorporation by reference,
requires a one-time inspection to determine AD on U.S. operators to be $5,525, or Safety.
the actual engine configuration and, $85 per product.
depending on findings, engine We also estimate that it would take The Proposed Amendment
reidentification and (depending on TC or about 1.5 work-hours per product to Accordingly, under the authority
STC holder installation) modification of the comply with the cylinder head
affected aircraft. This also affects engines that
delegated to me by the Administrator,
replacement option of this proposed the FAA proposes to amend 14 CFR part
are operated with waterless coolant. AD. The average labor rate is $85 per 39 as follows:
You may examine the MCAI on the work-hour. Required parts would cost
Internet at http://www.regulations.gov about $2,500 to replace a single engine PART 39—AIRWORTHINESS
by searching for and locating Docket No. cylinder head. DIRECTIVES
FAA–2016–4878. Based on these figures, we estimate
the cost of this portion of this proposed ■ 1. The authority citation for part 39
Related Service Information Under 1 continues to read as follows:
AD on U.S. operators to be $2,627.50
CFR Part 51
Lhorne on DSK5TPTVN1PROD with PROPOSALS

per engine cylinder head. Authority: 49 U.S.C. 106(g), 40113, 44701.
BRP-Powertrain GmbH & CO KG has
issued Rotax Aircraft Engines BRP Authority for This Rulemaking § 39.13 [Amended]
Service Bulletin SB–912–068 and SB– Title 49 of the United States Code ■ 2. The FAA amends § 39.13 by adding
914–049 (co-published as one specifies the FAA’s authority to issue the following new AD:
document), dated April 16, 2015. The rules on aviation safety. Subtitle I, Various Aircraft: Docket No. FAA–2016–
service information describes section 106, describes the authority of 4878; Directorate Identifier 2016–CE–
procedures for re-identifying the engine the FAA Administrator. ‘‘Subtitle VII: 001–AD.

VerDate Sep<11>2014 14:51 Mar 25, 2016 Jkt 238001 PO 00000 Frm 00013 Fmt 4702 Sfmt 4702 E:\FR\FM\28MRP1.SGM 28MRP1
Document Created: 2016-03-26 00:13:23
Document Modified: 2016-03-26 00:13:23
Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Proposed Rules
Action		Notice of proposed rulemaking (NPRM).
Dates		We must receive comments on this proposed AD by May 12, 2016.
Contact		Jim Rutherford, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4165; fax: (816) 329-4090; email: [email protected]
FR Citation		81 FR 17109
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
81 FR 17109 - Airworthiness Directives; Various Aircraft Equipped With BRP-Powertrain GmbH & Co KG 912 A Series Engine

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 81, Issue 59 (March 28, 2016)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
