80_FR_64578 80 FR 64373 - Airworthiness Directives; Engine Alliance Turbofan Engines

80 FR 64373 - Airworthiness Directives; Engine Alliance Turbofan Engines

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 80, Issue 205 (October 23, 2015)

Page Range64373-64375
FR Document2015-26755

We propose to adopt a new airworthiness directive (AD) for certain Engine Alliance (EA) GP7270 turbofan engines. This proposed AD was prompted by reports of the installation of non-conforming honeycomb seals in the high-pressure compressor (HPC) adjacent to the HPC rotor stage 2 to 5 spool and stage 7 to 9 spool. This proposed AD would require removal and replacement of the affected HPC rotor stage 2 to 5 and stage 7 to 9 spools. We are proposing this AD to prevent failure of the HPC rotor stage 2 to 5 and stage 7 to 9 spools, which could lead to uncontained engine failure and damage to the airplane.

Federal Register, Volume 80 Issue 205 (Friday, October 23, 2015)
[Federal Register Volume 80, Number 205 (Friday, October 23, 2015)]
[Proposed Rules]
[Pages 64373-64375]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-26755]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-3713; Directorate Identifier 2015-NE-23-AD]
RIN 2120-AA64


Airworthiness Directives; Engine Alliance Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Engine Alliance (EA) GP7270 turbofan engines. This proposed AD 
was prompted by reports of the installation of non-conforming honeycomb 
seals in the high-pressure compressor (HPC) adjacent to the HPC rotor 
stage 2 to 5 spool and stage 7 to 9 spool. This proposed AD would 
require removal and replacement of the affected HPC rotor stage 2 to 5 
and stage 7 to 9 spools. We are proposing this AD to prevent failure of 
the HPC rotor stage 2 to 5 and stage 7 to 9 spools, which could lead to 
uncontained engine failure and damage to the airplane.

DATES: We must receive comments on this proposed AD by December 22, 
2015.

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 proposed AD, contact 
Engine Alliance, 400 Main St., East Hartford, CT 06108, M/S 169-10, 
phone: 800-565-0140; email: [email protected];

[[Page 64374]]

Web site: www.engineallianceportal.com. You may view this service 
information at the FAA, Engine & Propeller Directorate, 12 New England 
Executive Park, Burlington, MA. For information on the availability of 
this material at the FAA, call 781-238-7125.

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-2015-
3713; 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 (phone: 800-647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Martin Adler, Aerospace Engineer, 
Engine & Propeller Directorate, FAA, 12 New England Executive Park, 
Burlington, MA 01803; phone: 781-238-7157; fax: 781-238-7199; email: 
[email protected].

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-2015-3713; 
Directorate Identifier 2015-NE-23-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://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 learned from the manufacturer that non-conforming honeycomb 
seals were installed in the affected HPCs adjacent to the HPC rotor 
stage 2 to 5 spools and stage 7 to 9 spools. The honeycomb seals in the 
HPC were machined to an incorrect radial height which resulted in 
reduced clearances between the honeycomb and the rotating spools. This 
error could lead to cracks on the spools prior to reaching their full 
life. This condition, if not corrected, could result in failure of the 
HPC rotor stage 2 to 5 and stage 7 to 9 spools, which could lead to 
uncontained engine failure, and damage to the airplane.

Relevant Service Information Under 1 CFR Part 51

    Engine Alliance has issued EA Service Bulletin (SB) No. EAGP7-72-
327, dated July 21, 2015; and SB No. EAGP7-72-328, dated July 21, 2015. 
The SBs describe procedures for removal and replacement of HPC rotor 
stage 2 to 5 spools and HPC rotor stage 7 to 9 spools, respectively. 
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 document.

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 removal and replacement of the 
affected HPC rotor stage 2 to 5 and stage 7 to 9 spools.

Costs of Compliance

    We estimate that this proposed AD affects zero engines installed on 
airplanes of U.S. registry. The average labor rate is $85 per hour. 
Based on these figures, we estimate the cost of this proposed AD on 
U.S. operators to be $0.

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 to the extent 
that it justifies making a regulatory distinction, 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):

Engine Alliance: Docket No. FAA-2015-3713; Directorate Identifier 
2015-NE-23-AD.

(a) Comments Due Date

    We must receive comments by December 22, 2015.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Engine Alliance (EA) GP7270 turbofan engines 
with one or both of the following installed:

[[Page 64375]]

    (1) A high-pressure compressor (HPC) rotor stage 2 to 5 spool, 
part number (P/N) 382-104-807-0, with a serial number (S/N) listed 
in EA Service Bulletin (SB) No. EAGP7-72-327, dated July 21, 2015; 
or
    (2) an HPC rotor stage 7 to 9 spool, P/N 2031M90G04, 2031M90G05, 
or 2031M90G07, with an S/N listed in EA SB No. EAGP7-72-328, dated 
July 21, 2015.

(d) Unsafe Condition

    This AD was prompted by reports of the installation of non-
conforming honeycomb seals in the HPC adjacent to the HPC rotor 
stage 2 to 5 spool and stage 7 to 9 spool. We are issuing this AD to 
prevent failure of the HPC rotor stage 2 to 5 spools and stage 7 to 
9 spools, which could lead to uncontained engine failure and damage 
to the airplane.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done. Within 30 days after the effective date of this 
AD or before accumulating 2,100 engine cycles since the last 
disassembly of the compressor module of the engine, whichever occurs 
later:
    (1) For engines with an HPC rotor stage 2 to 5 spool, P/N 382-
104-807-0, installed with a S/N listed in EA SB No. EAGP7-72-327, 
dated July 21, 2015, do the following:
    (i) Remove the HPC rotor stage 2 to 5 spool from service and 
replace with a part eligible for installation.
    (ii) Remove and replace the honeycomb seals on the HPC stage 5 
vanes.
    (2) For engines with an HPC rotor stage 7 to 9 spool, P/N 
2031M90G04, 2031M90G05, or 2031M90G07 installed with an S/N listed 
in EA SB No. EAGP7-72-328, dated July 21, 2015, do the following:
    (i) Remove the HPC rotor stage 7 to 9 spool from service and 
replace with a part eligible for installation.
    (ii) Remove and replace the honeycomb seals on the HPC stage 6, 
stage 7, and stage 8 vanes.

(f) Alternative Methods of Compliance (AMOCs)

    The Manager, Engine Certification Office, may approve AMOCs for 
this AD. Use the procedures found in 14 CFR 39.19 to make your 
request. You may email your request to: [email protected].

(g) Related Information

    (1) For more information about this AD, contact Martin Adler, 
Aerospace Engineer, Engine & Propeller Directorate, FAA, 12 New 
England Executive Park, Burlington, MA 01803; phone: 781-238-7157; 
fax: 781-238-7199; email: [email protected].
    (2) EA SBs No. EAGP7-72-327, dated July 21, 2015; and No. EAGP7-
72-328, dated July 21, 2015 can be obtained from EA using the 
contact information in paragraph (g)(3) of this proposed AD.
    (3) For service information identified in this AD, contact 
Engine Alliance, 400 Main St., East Hartford, CT 06108, M/S 169-10, 
phone: 800-565-0140; email: [email protected]; Web site: 
www.engineallianceportal.com.
    (4) You may view this service information at the FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, 
MA. For information on the availability of this material at the FAA, 
call 781-238-7125.

    Issued in Burlington, Massachusetts, on October 16, 2015.
Colleen M. D'Alessandro,
Directorate Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2015-26755 Filed 10-22-15; 8:45 am]
BILLING CODE 4910-13-P



                                                                            Federal Register / Vol. 80, No. 205 / Friday, October 23, 2015 / Proposed Rules                                              64373

                                                      4. Will not have a significant                        (f) Compliance                                          Issued in Renton, Washington, on October
                                                    economic impact, positive or negative,                    Comply with this AD within the                      15, 2015.
                                                    on a substantial number of small entities               compliance times specified, unless already            Jeffrey E. Duven,
                                                    under the criteria of the Regulatory                    done.                                                 Manager, Transport Airplane Directorate,
                                                    Flexibility Act.                                                                                              Aircraft Certification Service.
                                                                                                            (g) One-Time Inspection and Repair
                                                                                                                                                                  [FR Doc. 2015–26691 Filed 10–22–15; 8:45 am]
                                                    List of Subjects in 14 CFR Part 39                        Within 12 months after the effective date
                                                                                                                                                                  BILLING CODE 4910–13–P
                                                                                                            of this AD: Do the actions required by
                                                      Air transportation, Aircraft, Aviation                paragraphs (g)(1), (g)(2), and (g)(3) of this AD,
                                                    safety, Incorporation by reference,                     in accordance with the Accomplishment
                                                    Safety.                                                 Instructions of UTC Aerospace Systems
                                                                                                                                                                  DEPARTMENT OF TRANSPORTATION
                                                                                                            Service Bulletin 300723–28–03 (V–1577),
                                                    The Proposed Amendment                                                                                        Federal Aviation Administration
                                                                                                            Revision 01, dated July 20, 2015.
                                                      Accordingly, under the authority                        (1) Perform a one-time general visual
                                                                                                            inspection for damage of the outer tank               14 CFR Part 39
                                                    delegated to me by the Administrator,
                                                                                                            sensor harness, and if any damage is found            [Docket No. FAA–2015–3713; Directorate
                                                    the FAA proposes to amend 14 CFR part
                                                                                                            on the expando sleeving, before further flight,       Identifier 2015–NE–23–AD]
                                                    39 as follows:                                          do a detailed inspection of the underlying
                                                                                                            wires for exposed conductor wires. If any             RIN 2120–AA64
                                                    PART 39—AIRWORTHINESS                                   exposed conductor wire is found, before
                                                    DIRECTIVES                                              further flight, replace the outer wing harness        Airworthiness Directives; Engine
                                                                                                            assembly.                                             Alliance Turbofan Engines
                                                    ■ 1. The authority citation for part 39                   (2) Install new brackets and re-route the           AGENCY: Federal Aviation
                                                    continues to read as follows:                           surge tank overflow sensor harness.
                                                                                                                                                                  Administration (FAA), DOT.
                                                        Authority: 49 U.S.C. 106(g), 40113, 44701.            (3) Modify the harness protection.
                                                                                                                                                                  ACTION: Notice of proposed rulemaking
                                                                                                            (h) Credit for Previous Actions                       (NPRM).
                                                    § 39.13     [Amended]
                                                                                                              This paragraph provides credit for actions
                                                    ■ 2. The FAA amends § 39.13 by adding                   required by paragraph (g) of this AD, if those        SUMMARY:    We propose to adopt a new
                                                    the following new airworthiness                         actions were performed before the effective           airworthiness directive (AD) for certain
                                                    directive (AD):                                         date of this AD using UTC Aerospace                   Engine Alliance (EA) GP7270 turbofan
                                                                                                            Systems Service Bulletin 300723–28–03 (V–             engines. This proposed AD was
                                                    Airbus: Docket No. FAA–2015–4204;
                                                        Directorate Identifier 2015–NM–001–AD.
                                                                                                            1577), dated October 10, 2014. This service           prompted by reports of the installation
                                                                                                            information is not incorporated by reference          of non-conforming honeycomb seals in
                                                    (a) Comments Due Date                                   in this AD.                                           the high-pressure compressor (HPC)
                                                      We must receive comments by December 7,               (i) Alternative Methods of Compliance                 adjacent to the HPC rotor stage 2 to 5
                                                    2015.                                                   (AMOCs)                                               spool and stage 7 to 9 spool. This
                                                    (b) Affected ADs                                          (1) The Manager, Boston Aircraft                    proposed AD would require removal
                                                                                                            Certification Office (ACO) ANE–150, FAA,              and replacement of the affected HPC
                                                        None.
                                                                                                            has the authority to approve AMOCs for this           rotor stage 2 to 5 and stage 7 to 9 spools.
                                                    (c) Applicability                                       AD, if requested using the procedures found           We are proposing this AD to prevent
                                                      This AD applies to the Airbus airplanes               in 14 CFR 39.19. In accordance with 14 CFR            failure of the HPC rotor stage 2 to 5 and
                                                    specified in paragraphs (c)(1), (c)(2), (c)(3),         39.19, send your request to your principal            stage 7 to 9 spools, which could lead to
                                                    and (c)(4) of this AD; certificated in any              inspector or local Flight Standards District          uncontained engine failure and damage
                                                    category; modified by Simmonds Precision                Office, as appropriate. If sending information        to the airplane.
                                                    Products, Inc., supplemental type certificate           directly to the manager of the ACO, send it
                                                                                                                                                                  DATES: We must receive comments on
                                                    (STC) ST00092BO (http://rgl.faa.gov/                    to the attention of the person identified in
                                                                                                            paragraph (j)(1) of this AD.
                                                                                                                                                                  this proposed AD by December 22,
                                                    Regulatory_and_Guidance_Library/rgstc.nsf/
                                                                                                              (2) Before using any approved AMOC,                 2015.
                                                    0/D41C5AE8E46B4901862v574900069E004
                                                    ?OpenDocument&Highlight=st00092bo).                     notify your appropriate principal inspector,          ADDRESSES:  You may send comments,
                                                      (1) Model A300 B4–601, B4–603, B4–620,                or lacking a principal inspector, the manager         using the procedures found in 14 CFR
                                                    and B4–622 airplanes.                                   of the local flight standards district office/        11.43 and 11.45, by any of the following
                                                      (2) Model A300 B4–605R and B4–622R                    certificate holding district office.                  methods:
                                                    airplanes.                                              (j) Related Information                                 • Federal eRulemaking Portal: Go to
                                                      (3) Model A300 F4–605R and F4–622R                                                                          http://www.regulations.gov. Follow the
                                                    airplanes.                                                (1) For more information about this AD,
                                                                                                            contact Marc Ronell, Aerospace Engineer,              instructions for submitting comments.
                                                      (4) Model A300 C4–605R Variant F
                                                    airplanes.                                              Boston ACO, FAA, 12 New England                         • Fax: 202–493–2251.
                                                                                                            Executive Park, Burlington, MA 01803;                   • Mail: U.S. Department of
                                                    (d) Subject                                             phone: 781–238–7776; fax: 781–238–7170;               Transportation, Docket Operations, M–
                                                     Air Transport Association (ATA) of                     email: marc.ronell@faa.gov.                           30, West Building Ground Floor, Room
                                                    America Code 28, Fuel.                                    (2) For service information identified in           W12–140, 1200 New Jersey Avenue SE.,
                                                                                                            this AD, contact Simmonds Precision                   Washington, DC 20590.
                                                    (e) Reason                                              Products, Inc., A UTC Aerospace Company,                • Hand Delivery: Deliver to Mail
mstockstill on DSK4VPTVN1PROD with PROPOSALS




                                                       This AD was prompted by a report of                  100 Panton Road, Vergennes, Vermont 05491;            address above between 9 a.m. and 5
                                                    chafing found on the overflow sensor harness            phone 802–877–2911; fax 802–877–4444;
                                                                                                                                                                  p.m., Monday through Friday, except
                                                    of the surge tank, and subsequent contact               Internet http://www.utcaerospace
                                                    between the electrical wiring and fuel tank             systems.com. You may view this referenced             Federal holidays.
                                                    structure. We are issuing this AD to prevent            service information at the FAA, Transport               For service information identified in
                                                    chafing of the harness and subsequent                   Airplane Directorate, 1601 Lind Avenue SW.,           this proposed AD, contact Engine
                                                    contact between the electrical wiring and fuel          Renton, WA. For information on the                    Alliance, 400 Main St., East Hartford,
                                                    tank structure, which could result in                   availability of this material at the FAA, call        CT 06108, M/S 169–10, phone: 800–
                                                    electrical arcing and a fuel tank explosion.            425–227–1221.                                         565–0140; email: help24@pw.utc.com;


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                                                    64374                   Federal Register / Vol. 80, No. 205 / Friday, October 23, 2015 / Proposed Rules

                                                    Web site:                                               rotating spools. This error could lead to             because it addresses an unsafe condition
                                                    www.engineallianceportal.com. You                       cracks on the spools prior to reaching                that is likely to exist or develop on
                                                    may view this service information at the                their full life. This condition, if not               products identified in this rulemaking
                                                    FAA, Engine & Propeller Directorate, 12                 corrected, could result in failure of the             action.
                                                    New England Executive Park,                             HPC rotor stage 2 to 5 and stage 7 to 9
                                                                                                                                                                  Regulatory Findings
                                                    Burlington, MA. For information on the                  spools, which could lead to
                                                    availability of this material at the FAA,               uncontained engine failure, and damage                  We determined that this proposed AD
                                                    call 781–238–7125.                                      to the airplane.                                      would not have federalism implications
                                                                                                                                                                  under Executive Order 13132. This
                                                    Examining the AD Docket                                 Relevant Service Information Under 1                  proposed AD would not have a
                                                       You may examine the AD docket on                     CFR Part 51                                           substantial direct effect on the States, on
                                                    the Internet at http://                                    Engine Alliance has issued EA                      the relationship between the national
                                                    www.regulations.gov by searching for                    Service Bulletin (SB) No. EAGP7–72–                   Government and the States, or on the
                                                    and locating Docket No. FAA–2015–                       327, dated July 21, 2015; and SB No.                  distribution of power and
                                                    3713; or in person at the Docket                        EAGP7–72–328, dated July 21, 2015.                    responsibilities among the various
                                                    Management Facility between 9 a.m.                      The SBs describe procedures for                       levels of government.
                                                    and 5 p.m., Monday through Friday,                      removal and replacement of HPC rotor                    For the reasons discussed above, I
                                                    except Federal holidays. The AD docket                  stage 2 to 5 spools and HPC rotor stage               certify this proposed regulation:
                                                    contains this proposed AD, the                          7 to 9 spools, respectively. This service               (1) Is not a ‘‘significant regulatory
                                                    regulatory evaluation, any comments                     information is reasonably available                   action’’ under Executive Order 12866,
                                                    received, and other information. The                    because the interested parties have                     (2) Is not a ‘‘significant rule’’ under
                                                    street address for the Docket Office                    access to it through their normal course              the DOT Regulatory Policies and
                                                    (phone: 800–647–5527) is in the                         of business or by the means identified                Procedures (44 FR 11034, February 26,
                                                    ADDRESSES section. Comments will be                     in the ADDRESSES section of this                      1979),
                                                    available in the AD docket shortly after                document.                                               (3) Will not affect intrastate aviation
                                                    receipt.                                                                                                      in Alaska to the extent that it justifies
                                                    FOR FURTHER INFORMATION CONTACT:                        FAA’s Determination
                                                                                                                                                                  making a regulatory distinction, and
                                                    Martin Adler, Aerospace Engineer,                         We are proposing this AD because we                   (4) Will not have a significant
                                                    Engine & Propeller Directorate, FAA, 12                 evaluated all the relevant information                economic impact, positive or negative,
                                                    New England Executive Park,                             and determined the unsafe condition                   on a substantial number of small entities
                                                    Burlington, MA 01803; phone: 781–                       described previously is likely to exist or            under the criteria of the Regulatory
                                                    238–7157; fax: 781–238–7199; email:                     develop in other products of the same                 Flexibility Act.
                                                    martin.adler@faa.gov.                                   type design.
                                                    SUPPLEMENTARY INFORMATION:                                                                                    List of Subjects in 14 CFR Part 39
                                                                                                            Proposed AD Requirements
                                                    Comments Invited                                                                                                Air transportation, Aircraft, Aviation
                                                                                                              This proposed AD would require                      safety, Incorporation by reference,
                                                      We invite you to send any written                     removal and replacement of the affected               Safety.
                                                    relevant data, views, or arguments about                HPC rotor stage 2 to 5 and stage 7 to 9
                                                    this proposal. Send your comments to                    spools.                                               The Proposed Amendment
                                                    an address listed under the ADDRESSES                                                                           Accordingly, under the authority
                                                                                                            Costs of Compliance
                                                    section. Include ‘‘Docket No. FAA–                                                                            delegated to me by the Administrator,
                                                    2015–3713; Directorate Identifier 2015–                    We estimate that this proposed AD
                                                                                                                                                                  the FAA proposes to amend 14 CFR part
                                                    NE–23–AD’’ at the beginning of your                     affects zero engines installed on
                                                                                                                                                                  39 as follows:
                                                    comments. We specifically invite                        airplanes of U.S. registry. The average
                                                    comments on the overall regulatory,                     labor rate is $85 per hour. Based on                  PART 39—AIRWORTHINESS
                                                    economic, environmental, and energy                     these figures, we estimate the cost of                DIRECTIVES
                                                    aspects of this proposed AD. We will                    this proposed AD on U.S. operators to
                                                    consider all comments received by the                   be $0.                                                ■ 1. The authority citation for part 39
                                                    closing date and may amend this                         Authority for This Rulemaking                         continues to read as follows:
                                                    proposed AD because of those                                                                                      Authority: 49 U.S.C. 106(g), 40113, 44701.
                                                    comments.                                                  Title 49 of the United States Code
                                                      We will post all comments we                          specifies the FAA’s authority to issue                § 39.13    [Amended]
                                                    receive, without change, to http://                     rules on aviation safety. Subtitle I,                 ■ 2. The FAA amends § 39.13 by adding
                                                    www.regulations.gov, including any                      section 106, describes the authority of               the following new airworthiness
                                                    personal information you provide. We                    the FAA Administrator. Subtitle VII:                  directive (AD):
                                                    will also post a report summarizing each                Aviation Programs, describes in more
                                                                                                            detail the scope of the Agency’s                      Engine Alliance: Docket No. FAA–2015–
                                                    substantive verbal contact we receive                                                                             3713; Directorate Identifier 2015–NE–
                                                    about this proposed AD.                                 authority.
                                                                                                                                                                      23–AD.
                                                                                                               We are issuing this rulemaking under
                                                    Discussion                                              the authority described in Subtitle VII,              (a) Comments Due Date
                                                      We learned from the manufacturer                      Part A, Subpart III, Section 44701:
mstockstill on DSK4VPTVN1PROD with PROPOSALS




                                                                                                                                                                    We must receive comments by December
                                                    that non-conforming honeycomb seals                     ‘‘General requirements.’’ Under that                  22, 2015.
                                                    were installed in the affected HPCs                     section, Congress charges the FAA with                (b) Affected ADs
                                                    adjacent to the HPC rotor stage 2 to 5                  promoting safe flight of civil aircraft in
                                                    spools and stage 7 to 9 spools. The                     air commerce by prescribing regulations                 None.
                                                    honeycomb seals in the HPC were                         for practices, methods, and procedures                (c) Applicability
                                                    machined to an incorrect radial height                  the Administrator finds necessary for                    This AD applies to Engine Alliance (EA)
                                                    which resulted in reduced clearances                    safety in air commerce. This regulation               GP7270 turbofan engines with one or both of
                                                    between the honeycomb and the                           is within the scope of that authority                 the following installed:



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                                                                            Federal Register / Vol. 80, No. 205 / Friday, October 23, 2015 / Proposed Rules                                        64375

                                                      (1) A high-pressure compressor (HPC) rotor            12 New England Executive Park, Burlington,            Washington, DC, between 9 a.m. and 5
                                                    stage 2 to 5 spool, part number (P/N) 382–              MA. For information on the availability of            p.m., Monday through Friday, except
                                                    104–807–0, with a serial number (S/N) listed            this material at the FAA, call 781–238–7125.          Federal holidays.
                                                    in EA Service Bulletin (SB) No. EAGP7–72–                                                                       For Airbus service information
                                                                                                              Issued in Burlington, Massachusetts, on
                                                    327, dated July 21, 2015; or
                                                                                                            October 16, 2015.                                     identified in this proposed AD, contact
                                                      (2) an HPC rotor stage 7 to 9 spool, P/N
                                                    2031M90G04, 2031M90G05, or 2031M90G07,                  Colleen M. D’Alessandro,                              Airbus, Airworthiness Office—EIAS, 1
                                                    with an S/N listed in EA SB No. EAGP7–72–               Directorate Manager, Engine & Propeller               Rond Point Maurice Bellonte, 31707
                                                    328, dated July 21, 2015.                               Directorate, Aircraft Certification Service.          Blagnac Cedex, France; telephone +33 5
                                                                                                            [FR Doc. 2015–26755 Filed 10–22–15; 8:45 am]          61 93 36 96; fax +33 5 61 93 44 51; email
                                                    (d) Unsafe Condition
                                                                                                            BILLING CODE 4910–13–P
                                                                                                                                                                  account.airworth-eas@airbus.com;
                                                      This AD was prompted by reports of the                                                                      Internet http://www.airbus.com. For Air
                                                    installation of non-conforming honeycomb                                                                      Cruisers service information identified
                                                    seals in the HPC adjacent to the HPC rotor
                                                                                                            DEPARTMENT OF TRANSPORTATION                          in this proposed AD, contact Air
                                                    stage 2 to 5 spool and stage 7 to 9 spool. We
                                                    are issuing this AD to prevent failure of the                                                                 Cruisers Company, Cage Code 70167,
                                                    HPC rotor stage 2 to 5 spools and stage 7 to            Federal Aviation Administration                       1747 State Route 34, Wall Township, NJ
                                                    9 spools, which could lead to uncontained                                                                     07727–3935; telephone 732–681–3527;
                                                    engine failure and damage to the airplane.              14 CFR Part 39                                        fax 732–681–9163; Internet http://www.
                                                                                                                                                                  zodiacaerospace.com/en/our-activities/
                                                    (e) Compliance                                          [Docket No. FAA–2015–4202; Directorate
                                                                                                            Identifier 2014–NM–016–AD]
                                                                                                                                                                  aerosafety/zodiac-evacuation-systems.
                                                       Comply with this AD within the                                                                             You may view this referenced service
                                                    compliance times specified, unless already              RIN 2120–AA64                                         information at the FAA, Transport
                                                    done. Within 30 days after the effective date
                                                    of this AD or before accumulating 2,100                                                                       Airplane Directorate, 1601 Lind Avenue
                                                                                                            Airworthiness Directives; Airbus                      SW., Renton, WA. For information on
                                                    engine cycles since the last disassembly of
                                                    the compressor module of the engine,
                                                                                                            Airplanes                                             the availability of this material at the
                                                    whichever occurs later:                                 AGENCY: Federal Aviation                              FAA, call 425–227–1221.
                                                       (1) For engines with an HPC rotor stage 2            Administration (FAA), DOT.
                                                    to 5 spool, P/N 382–104–807–0, installed                                                                      Examining the AD Docket
                                                    with a S/N listed in EA SB No. EAGP7–72–                ACTION: Notice of proposed rulemaking                    You may examine the AD docket on
                                                    327, dated July 21, 2015, do the following:             (NPRM).                                               the Internet at http://
                                                       (i) Remove the HPC rotor stage 2 to 5 spool                                                                www.regulations.gov by searching for
                                                    from service and replace with a part eligible           SUMMARY:   We propose to supersede
                                                                                                            Airworthiness Directive (AD) 2012–18–                 and locating Docket No. FAA–2015–
                                                    for installation.
                                                       (ii) Remove and replace the honeycomb                12, for certain Airbus Model A318,                    4202; or in person at the Docket
                                                    seals on the HPC stage 5 vanes.                         A319, and A320 series airplanes. AD                   Management Facility between 9 a.m.
                                                       (2) For engines with an HPC rotor stage 7                                                                  and 5 p.m., Monday through Friday,
                                                                                                            2012–18–12 currently requires
                                                    to 9 spool, P/N 2031M90G04, 2031M90G05,                                                                       except Federal holidays. The AD docket
                                                                                                            modifying the off-wing escape slide
                                                    or 2031M90G07 installed with an S/N listed                                                                    contains this proposed AD, the
                                                    in EA SB No. EAGP7–72–328, dated July 21,
                                                                                                            (OWS) enclosures on the left-hand (LH)
                                                                                                                                                                  regulatory evaluation, any comments
                                                    2015, do the following:                                 side and right-hand (RH) side of the
                                                                                                                                                                  received, and other information. The
                                                       (i) Remove the HPC rotor stage 7 to 9 spool          fuselage. Since we issued AD 2012–18–
                                                                                                                                                                  street address for the Docket Operations
                                                    from service and replace with a part eligible           12, we have received reports that
                                                                                                                                                                  office (telephone 800–647–5527) is in
                                                    for installation.                                       additional OWS part numbers have been
                                                       (ii) Remove and replace the honeycomb                                                                      the ADDRESSES section. Comments will
                                                                                                            affected. This proposed AD would
                                                    seals on the HPC stage 6, stage 7, and stage                                                                  be available in the AD docket shortly
                                                                                                            retain the requirements of AD 2012–18–
                                                    8 vanes.                                                                                                      after receipt.
                                                                                                            12 and expand the applicability to all
                                                                                                                                                                  FOR FURTHER INFORMATION CONTACT:
                                                    (f) Alternative Methods of Compliance                   Airbus Model A318, A319, and A320
                                                    (AMOCs)                                                 series airplanes. We are proposing this               Sanjay Ralhan, Aerospace Engineer,
                                                                                                            AD to prevent off-wing exits on the LH                International Branch, ANM–116,
                                                       The Manager, Engine Certification Office,
                                                                                                            and RH sides of the fuselage from                     Transport Airplane Directorate, FAA,
                                                    may approve AMOCs for this AD. Use the
                                                    procedures found in 14 CFR 39.19 to make                                                                      1601 Lind Avenue SW., Renton, WA
                                                                                                            becoming inoperative, which, during an
                                                    your request. You may email your request to:                                                                  98057–3356; telephone 425–227–1405;
                                                                                                            emergency, could impair the safe
                                                    ANE-AD-AMOC@faa.gov.                                                                                          fax 425–227–1149.
                                                                                                            evacuation of occupants, possibly
                                                                                                            resulting in personal injuries.                       SUPPLEMENTARY INFORMATION:
                                                    (g) Related Information
                                                       (1) For more information about this AD,              DATES: We must receive comments on                    Comments Invited
                                                    contact Martin Adler, Aerospace Engineer,               this proposed AD by December 7, 2015.                   We invite you to send any written
                                                    Engine & Propeller Directorate, FAA, 12 New             ADDRESSES: You may send comments by                   relevant data, views, or arguments about
                                                    England Executive Park, Burlington, MA
                                                                                                            any of the following methods:                         this proposed AD. Send your comments
                                                    01803; phone: 781–238–7157; fax: 781–238–
                                                    7199; email: martin.adler@faa.gov.                         • Federal eRulemaking Portal: Go to                to an address listed under the
                                                       (2) EA SBs No. EAGP7–72–327, dated July              http://www.regulations.gov. Follow the                ADDRESSES section. Include ‘‘Docket No.
                                                    21, 2015; and No. EAGP7–72–328, dated July              instructions for submitting comments.                 FAA–2015–4202; Directorate Identifier
                                                    21, 2015 can be obtained from EA using the                 • Fax: 202–493–2251.                               2014–NM–016–AD’’ at the beginning of
                                                    contact information in paragraph (g)(3) of this            • Mail: U.S. Department of                         your comments. We specifically invite
mstockstill on DSK4VPTVN1PROD with PROPOSALS




                                                    proposed AD.                                            Transportation, Docket Operations, M–                 comments on the overall regulatory,
                                                       (3) For service information identified in            30, West Building Ground Floor, Room                  economic, environmental, and energy
                                                    this AD, contact Engine Alliance, 400 Main              W12–140, 1200 New Jersey Avenue SE.,
                                                    St., East Hartford, CT 06108, M/S 169–10,
                                                                                                                                                                  aspects of this proposed AD. We will
                                                    phone: 800–565–0140; email: help24@                     Washington, DC 20590.                                 consider all comments received by the
                                                    pw.utc.com; Web site:                                      • Hand Delivery: U.S. Department of                closing date and may amend this
                                                    www.engineallianceportal.com.                           Transportation, Docket Operations, M–                 proposed AD based on those comments.
                                                       (4) You may view this service information            30, West Building Ground Floor, Room                    We will post all comments we
                                                    at the FAA, Engine & Propeller Directorate,             W12–140, 1200 New Jersey Avenue SE.,                  receive, without change, to http://


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Document Created: 2015-12-14 15:32:50
Document Modified: 2015-12-14 15:32:50
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by December 22, 2015.
ContactMartin Adler, Aerospace Engineer, Engine & Propeller Directorate, FAA, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7157; fax: 781-238-7199; email: [email protected]
FR Citation80 FR 64373 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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