81_FR_23293 81 FR 23217 - Airworthiness Directives; Pratt & Whitney Division Turbofan Engines

81 FR 23217 - Airworthiness Directives; Pratt & Whitney Division Turbofan Engines

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 76 (April 20, 2016)

Page Range23217-23218
FR Document2016-09122

We propose to adopt a new airworthiness directive (AD) for certain Pratt & Whitney (PW) PW4164, PW4164-1D, PW4168, PW4168-1D, PW4168A, PW4168A-1D, and PW4170 turbofan engines. This proposed AD was prompted by several instances of fuel leaks on PW engines installed with the Talon IIB combustion chamber configuration. This proposed AD would require initial and repetitive inspections of the affected fuel nozzles and their replacement with parts eligible for installation. We are proposing this AD to prevent failure of the fuel nozzles, which could lead to engine fire and damage to the airplane.

Federal Register, Volume 81 Issue 76 (Wednesday, April 20, 2016) 
[Federal Register Volume 81, Number 76 (Wednesday, April 20, 2016)]
[Proposed Rules]
[Pages 23217-23218]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-09122]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-5423; Directorate Identifier 2016-NE-09-AD]
RIN 2120-AA64


Airworthiness Directives; Pratt & Whitney Division Turbofan 
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Pratt & Whitney (PW) PW4164, PW4164-1D, PW4168, PW4168-1D, 
PW4168A, PW4168A-1D, and PW4170 turbofan engines. This proposed AD was 
prompted by several instances of fuel leaks on PW engines installed 
with the Talon IIB combustion chamber configuration. This proposed AD 
would require initial and repetitive inspections of the affected fuel 
nozzles and their replacement with parts eligible for installation. We 
are proposing this AD to prevent failure of the fuel nozzles, which 
could lead to engine fire and damage to the airplane.

DATES: We must receive comments on this proposed AD by June 20, 2016.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact Pratt & 
Whitney, 400 Main St., East Hartford, CT 06108; phone: 860-565-8770; 
fax: 860-565-4503. You may view this service information at the FAA, 
Engine & Propeller Directorate, 1200 District Avenue, 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-2016-
5423; 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: Besian Luga, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 
District Avenue, Burlington, MA 01803; phone: 781-238-7750; 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-2016-5423; 
Directorate Identifier 2016-NE-09-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

    PW reported nine occurrences of fuel leaks on PW engines with the 
Talon IIB combustion chamber configuration. The subsequent 
investigation of these fuel leaks determined that the leak occurs at 
the brazed joint interface on the fuel injector support (fuel nozzle) 
between the inlet fitting and the nozzle support pad. Cracks are the 
result of thermal mechanical fatigue due to high thermal gradients on 
engines equipped with the Talon IIB combustor. The cracking may be 
aggravated by a laser tack weld that holds the nozzle fitting in place 
during the braze process. This process change, which adds this laser 
weld, was introduced to fuel nozzle, part number 51J345, in December 
2008.

Related Service Information Under 1 CFR Part 51

    We reviewed PW Alert Service Bulletin (ASB) PW4G-100-A73-45, dated 
February 16, 2016. The ASB describes procedures for inspecting and 
replacing the fuel nozzles. 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.

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 initial and repetitive inspections 
and replacement of the affected fuel nozzles.

[[Page 23218]]

Costs of Compliance

    We estimate that this proposed AD would affect 72 engines installed 
on airplanes of U.S. registry. We also estimate 2.2 hours per engine to 
comply with this proposed inspection and 48 hours to replace the fuel 
nozzle when it is replaced. The average labor rate is $85 per hour. We 
estimate that parts cost would be $15,780 per engine. Based on these 
figures, we estimate the cost of this proposed AD on U.S. operators to 
be $1,443,384.

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):

Pratt & Whitney: Docket No. FAA-2016-5423; Directorate Identifier 
2016-NE-09-AD.

(a) Comments Due Date

    We must receive comments by June 20, 2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Pratt & Whitney (PW):
    (1) PW4164, PW4168, and PW4168A model engines that have 
incorporated PW Service Bulletin (SB) PW4G-100-72-214, dated 
December 15, 2011, or PW SB PW4G-100-72-219, Revision No. 1, dated 
October 5, 2011, or original issue, and have fuel nozzles, part 
number (P/N) 51J345, installed;
    (2) PW4168A model engines with Talon IIA outer combustion 
chamber assembly, P/N 51J100, and fuel nozzles, P/N 51J345, with 
serial numbers CGGUA19703 through CGGUA19718 or CGGUA22996 and 
higher, installed;
    (3) PW4168A-1D and PW4170 model engines with engine serial 
numbers P735001 thru P735190 and fuel nozzles, P/N 51J345, 
installed; and
    (4) PW4164-1D, PW4168-1D, PW4168A-1D, and PW4170 model engines 
that have incorporated PW SB PW4G-100-72-220, Revision No. 4, dated 
September 30, 2011, or earlier revision, and have fuel nozzles, P/N 
51J345, installed.

(d) Unsafe Condition

    This AD was prompted by nine instances of fuel leaks on PW 
engines with the Talon IIB combustion chamber configuration 
installed. We are issuing this AD to prevent failure of the fuel 
nozzles, which could lead to engine fire and damage to the airplane.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) Within 800 flight hours after the effective date of this AD, 
and thereafter within every 800 flight hours accumulated on the fuel 
nozzles, do the following:
    (i) Inspect all fuel nozzles, P/N 51J345. Use Part A of PW Alert 
Service Bulletin (ASB) PW4G-100-A73-45, dated February 16, 2016, to 
do the inspection.
    (ii) For any fuel nozzle that fails the inspection, before 
further flight, remove and replace it with a part that is eligible 
for installation.
    (2) At the next shop visit after the effective date of this AD, 
and thereafter at each engine shop visit, remove all fuel nozzles, 
P/N 51J345, unless fuel nozzles were replaced within the last 100 
flight hours. Use Part B of PW ASB PW4G-100-A73-45, dated February 
16, 2016, to replace the fuel nozzles with parts eligible for 
installation.

(f) Definitions

    (1) For the purpose of this AD, an ``engine shop visit'' means 
the induction of an engine into the shop for any maintenance.
    (2) For the purpose of this AD, a part that is ``eligible for 
installation'' is a fuel nozzle, with a P/N other than 51J345, that 
is FAA-approved for installation or a fuel nozzle, P/N 51J345, that 
meets the requirements of Part A, paragraph 4.B., or Part B, 
paragraph 1.B. of PW ASB PW4G-100-A73-45, dated February 16, 2016.

(g) Alternative Methods of Compliance (AMOCs)

    The Manager, Engine Certification Office, FAA, 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].

(h) Related Information

    (1) For more information about this AD, contact Besian Luga, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; 
phone: 781-238-7750; fax: 781-238-7199; email: [email protected].
    (2) PW ASB PW4G-100-A73-45, dated February 16, 2016, can be 
obtained from PW using the contact information in paragraph (h)(3) 
of this proposed rule.
    (3) For service information identified in this proposed rule, 
contact Pratt & Whitney, 400 Main St., East Hartford, CT 06108; 
phone: 860-565-8770; fax: 860-565-4503.
    (4) You may view this service information at the FAA, Engine & 
Propeller Directorate, 1200 District Avenue, Burlington, MA. For 
information on the availability of this material at the FAA, call 
781-238-7125.

    Issued in Burlington, Massachusetts, on April 13, 2016.
Carlos Pestana,
Acting Manager, Engine & Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-09122 Filed 4-19-16; 8:45 am]
 BILLING CODE 4910-13-P

Federal Register / Vol. 81, No. 76 / Wednesday, April 20, 2016 / Proposed Rules 23217 Information may be emailed to: 9-ANM-116- leaks on PW engines installed with the this proposal. Send your comments to AMOC-REQUESTS@faa.gov. Before using Talon IIB combustion chamber an address listed under the ADDRESSES any approved AMOC, notify your appropriate configuration. This proposed AD would section. Include ‘‘Docket No. FAA– principal inspector, or lacking a principal require initial and repetitive inspections inspector, the manager of the local flight 2016–5423; Directorate Identifier 2016– standards district office/certificate holding of the affected fuel nozzles and their NE–09–AD’’ at the beginning of your district office. The AMOC approval letter replacement with parts eligible for comments. We specifically invite must specifically reference this AD. installation. We are proposing this AD comments on the overall regulatory, (2) Contacting the Manufacturer: For any to prevent failure of the fuel nozzles, economic, environmental, and energy requirement in this AD to obtain corrective which could lead to engine fire and aspects of this proposed AD. We will actions from a manufacturer, the action must damage to the airplane. consider all comments received by the be accomplished using a method approved DATES: We must receive comments on closing date and may amend this by the Manager, International Branch, ANM– this proposed AD by June 20, 2016. 116, Transport Airplane Directorate, FAA; or proposed AD because of those the European Aviation Safety Agency ADDRESSES: You may send comments, comments. (EASA); or Dassault Aviation’s EASA Design using the procedures found in 14 CFR We will post all comments we Organization Approval (DOA). If approved by 11.43 and 11.45, by any of the following receive, without change, to http:// the DOA, the approval must include the methods: • Federal eRulemaking Portal: Go to www.regulations.gov, including any DOA-authorized signature. http://www.regulations.gov. Follow the personal information you provide. We (j) Related Information will also post a report summarizing each instructions for submitting comments. (1) Refer to Mandatory Continuing • Fax: 202–493–2251. substantive verbal contact we receive Airworthiness Information (MCAI) EASA • Mail: U.S. Department of about this proposed AD. Airworthiness Directive 2014–0184, dated Transportation, Docket Operations, M– August 7, 2014, for related information. This Discussion 30, West Building Ground Floor, Room MCAI may be found in the AD docket on the Internet at http://www.regulations.gov by W12–140, 1200 New Jersey Avenue SE., PW reported nine occurrences of fuel searching for and locating Docket No. FAA– Washington, DC 20590. leaks on PW engines with the Talon IIB 2016–5594. • Hand Delivery: Deliver to Mail combustion chamber configuration. The (2) For service information identified in address above between 9 a.m. and 5 subsequent investigation of these fuel this AD, contact Dassault Falcon Jet, P.O. Box p.m., Monday through Friday, except leaks determined that the leak occurs at 2000, South Hackensack, NJ 07606; Federal holidays. the brazed joint interface on the fuel telephone 201–440–6700; Internet http:// For service information identified in injector support (fuel nozzle) between www.dassaultfalcon.com. You may view this this NPRM, contact Pratt & Whitney, service information at the FAA, Transport the inlet fitting and the nozzle support 400 Main St., East Hartford, CT 06108; pad. Cracks are the result of thermal Airplane Directorate, 1601 Lind Avenue SW., phone: 860–565–8770; fax: 860–565– Renton, WA. For information on the mechanical fatigue due to high thermal 4503. You may view this service availability of this material at the FAA, call gradients on engines equipped with the information at the FAA, Engine & 425–227–1221. Talon IIB combustor. The cracking may Propeller Directorate, 1200 District Issued in Renton, Washington, on April 8, be aggravated by a laser tack weld that Avenue, Burlington, MA. For 2016. holds the nozzle fitting in place during information on the availability of this Michael Kaszycki, material at the FAA, call 781–238–7125. the braze process. This process change, Acting Manager, Transport Airplane which adds this laser weld, was Directorate, Aircraft Certification Service. Examining the AD Docket introduced to fuel nozzle, part number [FR Doc. 2016–09003 Filed 4–19–16; 8:45 am] You may examine the AD docket on 51J345, in December 2008. BILLING CODE 4910–13–P the Internet at http:// Related Service Information Under 1 www.regulations.gov by searching for CFR Part 51 and locating Docket No. FAA–2016– DEPARTMENT OF TRANSPORTATION 5423; or in person at the Docket We reviewed PW Alert Service Management Facility between 9 a.m. Bulletin (ASB) PW4G–100–A73–45, Federal Aviation Administration and 5 p.m., Monday through Friday, dated February 16, 2016. The ASB except Federal holidays. The AD docket describes procedures for inspecting and 14 CFR Part 39 contains this proposed AD, the replacing the fuel nozzles. This service [Docket No. FAA–2016–5423; Directorate regulatory evaluation, any comments information is reasonably available Identifier 2016–NE–09–AD] received, and other information. The because the interested parties have street address for the Docket Office access to it through their normal course RIN 2120–AA64 (phone: 800–647–5527) is in the of business or by the means identified ADDRESSES section. Comments will be in the ADDRESSES section. Airworthiness Directives; Pratt & available in the AD docket shortly after Whitney Division Turbofan Engines FAA’s Determination receipt. AGENCY: Federal Aviation FOR FURTHER INFORMATION CONTACT: We are proposing this AD because we Administration (FAA), DOT. Besian Luga, Aerospace Engineer, Engine Certification Office, FAA, Engine evaluated all the relevant information ACTION: Notice of proposed rulemaking and determined the unsafe condition (NPRM). & Propeller Directorate, 1200 District described previously is likely to exist or Lhorne on DSK5TPTVN1PROD with PROPOSALS Avenue, Burlington, MA 01803; phone: SUMMARY: We propose to adopt a new 781–238–7750; fax: 781–238–7199; develop in other products of the same airworthiness directive (AD) for certain email: besian.luga@faa.gov. type design. Pratt & Whitney (PW) PW4164, SUPPLEMENTARY INFORMATION: Proposed AD Requirements PW4164–1D, PW4168, PW4168–1D, PW4168A, PW4168A–1D, and PW4170 Comments Invited This proposed AD would require turbofan engines. This proposed AD was We invite you to send any written initial and repetitive inspections and prompted by several instances of fuel relevant data, views, or arguments about replacement of the affected fuel nozzles. VerDate Sep<11>2014 14:51 Apr 19, 2016 Jkt 238001 PO 00000 Frm 00030 Fmt 4702 Sfmt 4702 E:\FR\FM\20APP1.SGM 20APP1

23218 Federal Register / Vol. 81, No. 76 / Wednesday, April 20, 2016 / Proposed Rules Costs of Compliance List of Subjects in 14 CFR Part 39 (i) Inspect all fuel nozzles, P/N 51J345. Use Part A of PW Alert Service Bulletin (ASB) We estimate that this proposed AD Air transportation, Aircraft, Aviation PW4G–100–A73–45, dated February 16, would affect 72 engines installed on safety, Incorporation by reference, 2016, to do the inspection. airplanes of U.S. registry. We also Safety. (ii) For any fuel nozzle that fails the estimate 2.2 hours per engine to comply The Proposed Amendment inspection, before further flight, remove and with this proposed inspection and 48 replace it with a part that is eligible for Accordingly, under the authority hours to replace the fuel nozzle when it installation. delegated to me by the Administrator, is replaced. The average labor rate is $85 the FAA proposes to amend 14 CFR part (2) At the next shop visit after the effective per hour. We estimate that parts cost 39 as follows: date of this AD, and thereafter at each engine would be $15,780 per engine. Based on shop visit, remove all fuel nozzles, P/N these figures, we estimate the cost of PART 39—AIRWORTHINESS 51J345, unless fuel nozzles were replaced this proposed AD on U.S. operators to DIRECTIVES within the last 100 flight hours. Use Part B be $1,443,384. of PW ASB PW4G–100–A73–45, dated ■ 1. The authority citation for part 39 February 16, 2016, to replace the fuel nozzles Authority for This Rulemaking continues to read as follows: with parts eligible for installation. Title 49 of the United States Code Authority: 49 U.S.C. 106(g), 40113, 44701. (f) Definitions specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, § 39.13 [Amended] (1) For the purpose of this AD, an ‘‘engine ■ 2. The FAA amends § 39.13 by adding shop visit’’ means the induction of an engine section 106, describes the authority of the following new airworthiness into the shop for any maintenance. the FAA Administrator. Subtitle VII: directive (AD): (2) For the purpose of this AD, a part that Aviation Programs, describes in more is ‘‘eligible for installation’’ is a fuel nozzle, detail the scope of the Agency’s Pratt & Whitney: Docket No. FAA–2016– with a P/N other than 51J345, that is FAA- authority. 5423; Directorate Identifier 2016–NE– 09–AD. approved for installation or a fuel nozzle, P/ We are issuing this rulemaking under N 51J345, that meets the requirements of Part the authority described in Subtitle VII, (a) Comments Due Date A, paragraph 4.B., or Part B, paragraph 1.B. Part A, Subpart III, Section 44701: We must receive comments by June 20, of PW ASB PW4G–100–A73–45, dated ‘‘General requirements.’’ Under that 2016. February 16, 2016. section, Congress charges the FAA with (b) Affected ADs promoting safe flight of civil aircraft in (g) Alternative Methods of Compliance air commerce by prescribing regulations None. (AMOCs) for practices, methods, and procedures (c) Applicability The Manager, Engine Certification Office, the Administrator finds necessary for This AD applies to Pratt & Whitney (PW): FAA, may approve AMOCs for this AD. Use safety in air commerce. This regulation (1) PW4164, PW4168, and PW4168A the procedures found in 14 CFR 39.19 to is within the scope of that authority model engines that have incorporated PW make your request. You may email your because it addresses an unsafe condition Service Bulletin (SB) PW4G–100–72–214, request to: ANE-AD-AMOC@faa.gov. that is likely to exist or develop on dated December 15, 2011, or PW SB PW4G– 100–72–219, Revision No. 1, dated October 5, (h) Related Information products identified in this rulemaking 2011, or original issue, and have fuel nozzles, (1) For more information about this AD, action. part number (P/N) 51J345, installed; contact Besian Luga, Aerospace Engineer, Regulatory Findings (2) PW4168A model engines with Talon Engine Certification Office, FAA, Engine & IIA outer combustion chamber assembly, P/ Propeller Directorate, 1200 District Avenue, We determined that this proposed AD N 51J100, and fuel nozzles, P/N 51J345, with serial numbers CGGUA19703 through Burlington, MA 01803; phone: 781–238– would not have federalism implications 7750; fax: 781–238–7199; email: under Executive Order 13132. This CGGUA19718 or CGGUA22996 and higher, installed; besian.luga@faa.gov. proposed AD would not have a (3) PW4168A–1D and PW4170 model (2) PW ASB PW4G–100–A73–45, dated substantial direct effect on the States, on engines with engine serial numbers P735001 February 16, 2016, can be obtained from PW the relationship between the national thru P735190 and fuel nozzles, P/N 51J345, using the contact information in paragraph Government and the States, or on the installed; and (h)(3) of this proposed rule. distribution of power and (4) PW4164–1D, PW4168–1D, PW4168A– (3) For service information identified in responsibilities among the various 1D, and PW4170 model engines that have this proposed rule, contact Pratt & Whitney, levels of government. incorporated PW SB PW4G–100–72–220, Revision No. 4, dated September 30, 2011, or 400 Main St., East Hartford, CT 06108; For the reasons discussed above, I earlier revision, and have fuel nozzles, P/N phone: 860–565–8770; fax: 860–565–4503. certify this proposed regulation: 51J345, installed. (4) You may view this service information (1) Is not a ‘‘significant regulatory at the FAA, Engine & Propeller Directorate, (d) Unsafe Condition action’’ under Executive Order 12866, 1200 District Avenue, Burlington, MA. For This AD was prompted by nine instances information on the availability of this (2) Is not a ‘‘significant rule’’ under of fuel leaks on PW engines with the Talon material at the FAA, call 781–238–7125. the DOT Regulatory Policies and IIB combustion chamber configuration Procedures (44 FR 11034, February 26, installed. We are issuing this AD to prevent Issued in Burlington, Massachusetts, on 1979), failure of the fuel nozzles, which could lead April 13, 2016. to engine fire and damage to the airplane. Carlos Pestana, (3) Will not affect intrastate aviation Lhorne on DSK5TPTVN1PROD with PROPOSALS in Alaska to the extent that it justifies (e) Compliance Acting Manager, Engine & Propeller making a regulatory distinction, and Comply with this AD within the Directorate, Aircraft Certification Service. (4) Will not have a significant compliance times specified, unless already [FR Doc. 2016–09122 Filed 4–19–16; 8:45 am] done. economic impact, positive or negative, (1) Within 800 flight hours after the BILLING CODE 4910–13–P on a substantial number of small entities effective date of this AD, and thereafter under the criteria of the Regulatory within every 800 flight hours accumulated on Flexibility Act. the fuel nozzles, do the following: VerDate Sep<11>2014 14:51 Apr 19, 2016 Jkt 238001 PO 00000 Frm 00031 Fmt 4702 Sfmt 9990 E:\FR\FM\20APP1.SGM 20APP1


Document Created: 2016-04-20 01:51:47
Document Modified: 2016-04-20 01:51:47
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 June 20, 2016.
ContactBesian Luga, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7750; fax: 781- 238-7199; email: [email protected]
FR Citation81 FR 23217 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
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