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2015-20-03 PRATT & WHITNEY CANADA CORP.:
Amendment 39-18281; Docket No. FAA-2013-1059; Directorate Identifier 2013-NE-36-AD. 
(a) EFFECTIVE DATE

    This AD is effective November 18, 2015.

(b) AFFECTED ADS

    This AD replaces AD 2014-14-02,  Amendment 39-17896 (79 FR 39958, July
    11, 2014).

(c) APPLICABILITY

    This AD applies to  Pratt & Whitney Canada Corp. (P&WC)  PW120, PW121,
    and PW121A turboprop engines with post SB 21610 configuration; PW124B,
    PW127,  PW127E,  and  PW127F  turboprop  engines  with  post  SB 21607
    configuration; PW127E and PW127F turboprop engines with serial numbers
    (S/Ns) PCE-EB0366 and earlier; PW127G turboprop engines with S/Ns  PCE
    -AX0275 and earlier; and PW127M turboprop engines with S/Ns PCE-ED0810
    and earlier.

(d) UNSAFE CONDITION

    This  AD  was  prompted  by reports of fuel seepage past the metal-to-
    metal  sealing surfaces  of  the  fuel nozzle  and fuel  manifold flow
    adapter. We  are issuing  this AD  to prevent  in-flight fuel leakage,
    engine fire, damage to the engine, and damage to the airplane.

(e) COMPLIANCE

    Comply with this AD within the compliance times specified,  unless al-
    ready done. Within 1,500 flight hours after the effective date of this
    AD, or at the next engine shop visit, whichever occurs first:

(1) Remove the O-ring seal from the fuel manifold fitting,

(2) Remove  fuel  manifold  flow  adapter, part numbers (P/Ns) 3059754-01,
    3059757-01, and 3059760-01; and

(3) Install a fuel nozzle gasket  and  fuel manifold flow adapter that are
    eligible for installation, in accordance with paragraphs 3.A, 3.B, and
    3.C of P&WC SB No. PW100-72-21861, dated November 21, 2014.

(f) INSTALLATION PROHIBITION

    After  the  effective  date  of this AD,  fuel manifold adapter,  P/Ns
    3059754-01, 3059757-01, and 3059760-01, and fuel manifold gasket,  P/N
    3079354-01, are not eligible for installation in any engine.

(g) DEFINITION

    For the purpose of this AD,  an engine shop visit is the  induction of
    an engine into  the shop for  maintenance involving the  separation of
    pairs of major mating engine flanges. The separation of engine flanges
    solely for  the purpose  of transportation  without subsequent  engine
    maintenance does not constitute an engine shop visit.

(h) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS)

    The Manager, Engine  Certification Office, FAA,  may approve AMOCs  to
    this  AD.  Use the  procedures  found in  14  CFR 39.19  to  make your
    request. You may email your request to: ANE-AD-AMOC@faa.gov.

(i) RELATED INFORMATION

(1) For more information about this AD contact Barbara Caufield, Aerospace
    Engineer,  Engine  Certification  Office,  FAA,  Engine  &   Propeller
    Directorate,  12 New  England Executive  Park,  Burlington,  MA 01803;
    phone: 781-238-7146;  fax: 781-238-7199;  email: barbara.caufield@faa.
    gov.

(2) Refer to MCAI Transport Canada AD CF-2014-41, dated November 26, 2014,
    for related information.  You may examine the MCAI in the AD docket on
    the Internet at http://www.regulations.gov by searching for and locat-
    ing it in Docket No. FAA-2013-1059.

(j) MATERIAL INCORPORATED BY REFERENCE

(1) The  Director  of  the  Federal Register approved the incorporation by
    reference (IBR)  of  the  service information listed in this paragraph
    under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) You must use  this service information as applicable to do the actions
    required by this AD, unless the AD specifies otherwise.

(i) Pratt & Whitney Canada Corp. Service Bulletin (SB) No. PW100-72-21861,
    dated November 21, 2014.

(ii) Reserved.

(3) For Pratt & Whitney Canada Corp.  service  information  identified  in
    this  AD,  contact  Pratt & Whitney Canada Corp.,  1000 Marie-Victorin
    Blvd., Longueuil, Quebec, Canada, J4G 1A1;  phone: 800-268-8000;  fax:
    450-647-2888; Web site: www.pwc.ca.

(4) You  may  view  this  service  information  at FAA, Engine & Propeller
    Directorate, 12 New England Executive Park, Burlington, MA. For infor-
    mation on the availability of this material at the FAA,  call 781-238-
    7125.

(5) You  may  view  this  service information at the National Archives and
    Records Administration (NARA).  For information on the availability of
    this material at NARA, call 202-741-6030 or go to: http://www.archives
    .gov/federal-register/cfr/ibr-locations.html.

Issued in  Burlington, Massachusetts,  on September  22, 2015.  Colleen M.
D'Alessandro,  Directorate  Manager,   Engine  &  Propeller   Directorate,
Aircraft Certification Service.

FOR FURTHER INFORMATION CONTACT:  Barbara  Caufield,  Aerospace  Engineer,
Engine Certification Office,  FAA,  Engine & Propeller Directorate, 12 New
England Executive Park, Burlington, MA 01803;  phone:  781-238-7146;  fax:
781-238-7199; email: barbara.caufield@faa.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2013-1059; Directorate Identifier 2013-NE-36-AD;
Amendment 39-18281; AD 2015-20-03]
RIN 2120-AA64

Airworthiness Directives; Pratt & Whitney Canada Corp. Turboprop
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are superseding airworthiness directive (AD) 2014-14-02 for
certain Pratt & Whitney Canada Corp. (P&WC) PW120, PW121, PW121A,
PW124B, PW127, PW127E, PW127F, PW127G, and PW127M turboprop engines. AD
2014-14-02 required removal of the O-ring seal from the fuel manifold
fitting. This new AD requires replacement of the fuel nozzle and the
fuel manifold flow adapter. This AD was prompted by reports of fuel
leaks at the interface between the fuel manifold and the fuel nozzle
that resulted in engine fire. We are issuing this AD to correct the
unsafe condition on these products.

DATES: This AD is effective November 18, 2015.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of November 18,
2015.

ADDRESSES: For service information identified in this AD, contact Pratt
& Whitney Canada Corp., 1000 Marie-Victorin, Longueuil, Quebec, Canada,
J4G 1A1; phone: 800-268-8000; fax: 450-647-2888; Web site: www.pwc.ca.
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. It is also available on the Internet at http://www.regulations.gov by
searching for and locating Docket No. FAA-2013- 1059.

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-2013-
1059; 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 AD, the mandatory continuing airworthiness information,
regulatory evaluation, any comments received, and other information.
The address for the Docket Office (phone: 800-647-5527) is Document
Management Facility, U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Barbara Caufield, Aerospace Engineer,
Engine Certification Office, FAA, Engine & Propeller Directorate, 12
New England Executive Park, Burlington, MA 01803; phone: 781-238-7146;
fax: 781-238-7199; email: barbara.caufield@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2014-14-02, Amendment 39-17896 (79 FR 39958,
July 11, 2014), (``AD 2014-14-02''). AD 2014-14-02 applied to certain
P&WC PW120, PW121, PW121A, PW124B, PW127, PW127E, PW127F, PW127G, and
PW127M turboprop engines. The NPRM published in the Federal Register on
June 2, 2015 (80 FR 31325). The NPRM proposed to require replacement of
the fuel nozzle and the fuel manifold flow adapter.

Related Service Information Under 1 CFR Part 51

We reviewed P&WC SB No. PW100-72-21861, dated November 21, 2014,
which identifies the final fuel nozzle configuration. 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 AD.

Comments

We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM (80 FR 31325, June 2,
2015) or on the determination of the cost to the public.

Conclusion

We reviewed the available data and determined that air safety and
the public interest require adopting this AD as proposed.

Costs of Compliance

We estimate that this AD affects 150 engines installed on airplanes
of U.S. registry. We also estimate that it will take about 2.5 hours
per engine to comply with this AD. The average labor rate is $85 per
hour. Required parts cost about $146,594 per engine. Based on these
figures, we estimate the cost of this AD on U.S. operators to be
$22,020,975.

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

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

Adoption of the Amendment

Accordingly, under the authority delegated to me by the
Administrator, the FAA amends part 39 of the Federal Aviation
Regulations (14 CFR part 39) as follows:

PART 39--AIRWORTHINESS DIRECTIVES

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

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

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by removing airworthiness directive (AD)
2014-14-02], Amendment 39-17896 (79 FR 39958, July 11, 2014), and
adding the following new AD: