83 FR 18758 - Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Tay 620-15 Engines

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 83 (April 30, 2018)

Page Range		18758-18760
FR Document		2018-09011
We propose to adopt a new airworthiness directive (AD) for Rolls-Royce Deutschland Ltd & Co KG (RRD) Tay 620-15 turbofan engines. This AD limits service life of the low-pressure compressor (LPC) fan blades based on the number of dry-film lubricant (DFL) treatments. The AD was prompted by reports of LPC fan blade retention lug failures. We are proposing this AD to correct the unsafe condition on these products.
Federal Register, Volume 83 Issue 83 (Monday, April 30, 2018)
[Federal Register Volume 83, Number 83 (Monday, April 30, 2018)]
[Proposed Rules]
[Pages 18758-18760]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-09011]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0235; Product Identifier 2018-NE-08-AD]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Tay 
620-15 Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
Rolls-Royce Deutschland Ltd & Co KG (RRD) Tay 620-15 turbofan engines. 
This AD limits service life of the low-pressure compressor (LPC) fan 
blades based on the number of dry-film lubricant (DFL) treatments. The 
AD was prompted by reports of LPC fan blade retention lug failures. We 
are proposing this AD to correct the unsafe condition on these 
products.

DATES: We must receive comments on this proposed AD by June 14, 2018.

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 Rolls-
Royce Deutschland Ltd & Co KG, Eschenweg 11, Dahlewitz, 15827 
Blankenfelde-Mahlow, Germany; phone: +49 (0) 33-7086-1883; fax: +49 (0) 
33-7086-3276.

[[Page 18759]]

You may view this service information at the FAA, Engine & Propeller 
Standards Branch, 1200 District Avenue, Burlington, MA 01803. For 
information on the availability of this material at the FAA, call 781-
238-7759.

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-2018-
0235; or in person at the Docket Operations office between 9 a.m. and 5 
p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this NPRM, the mandatory continuing airworthiness information 
(MCAI), the regulatory evaluation, any comments received, and other 
information. The address for Docket Operations (phone: 800-647-5527) is 
listed above. Comments will be available in the AD docket shortly after 
receipt.

FOR FURTHER INFORMATION CONTACT: Robert Green, Aerospace Engineer, ECO 
Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-
238-7754; 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-2018-0235; 
Product Identifier 2018-NE-08-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this NPRM. We will consider all 
comments received by the closing date and may amend this NPRM 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 NPRM.

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Community, has issued EASA 
AD 2018-0013, dated January 17, 2018 (referred to after this as the 
MCAI), to address the unsafe condition on these products. The MCAI 
states:

    Fractures of low pressure compressor (LPC) fan blade retention 
lugs were reported on engines subjected to a high number of Dry Film 
Lubrication (DFL) treatments. Subsequent investigation determined 
that, as a consequence, the retention lugs of the affected LPC (fan) 
blades had been exposed to excessive high stress cycles.
    This condition, if not detected or corrected, could lead to 
failure of LPC fan blade retention lug(s), high vibration, reduced 
thrust, or in-flight shut down, possibly resulting in reduced 
control of the aeroplane.
    To address this potential unsafe condition, Rolls Royce 
Deutschland (RRD) issued Alert Non-Modification Service Bulletin 
(NMSB) TAY-72-A1834 (hereafter referred to as `the NMSB') to provide 
identification and replacement instructions.
    For the reasons described above, this [EASA] AD requires 
determination of number of DFL treatments applied to the LPC fan 
blades and, based on that determination, replacement. This AD also 
introduces a maximum allowable number of DFL treatments applicable 
to the LPC fan blades.

    You may obtain further information by examining the MCAI in the AD 
docket on the internet at http://www.regulations.gov by searching for 
and locating Docket No. FAA-2018-0235.

Related Service Information Under 1 CFR Part 51

    We reviewed RRD ALERT Non-Modification Service Bulletin (NMSB) TAY-
72-A1834, dated November 17, 2017. The Alert NMSB describes procedures 
for reviewing the maintenance records and replacing the LPC fan blade 
with a serviceable part. 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.

Other Related Service Information

    We reviewed RRD NMSB TAY-70-1050, Revision 9, dated July 14, 2010. 
This NMSB defines a basic engine life management program suitable for 
Tay engines in aircraft that are engaged in non-airline operations.

FAA's Determination

    This product has been approved by EASA and is approved for 
operation in the United States. Pursuant to our bilateral agreement 
with the European Community, EASA has notified us of the unsafe 
condition described in the MCAI and service information referenced 
above. We are proposing this AD because we evaluated all information 
provided by EASA and determined the unsafe condition exists and is 
likely to exist or develop on other products of the same type design. 
This proposed AD would require reviewing the engine maintenance records 
and replacing the LPC fan blade with a serviceable part if the DFL 
treatment limit is exceeded.

Requirements of the Proposed AD

    This proposed AD would require reviewing the engine maintenance 
records and replacing the LPC fan blade with a serviceable part if the 
DFL treatment limit is exceeded.

Costs of Compliance

    We estimate that this proposed AD affects 25 engines installed on 
airplanes of U.S. registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Record search to establish number of    1.5 work-hours x $85 per               0         $127.50       $3,187.50
 LPC blade DFL applications.             hour = $127.50.
Lost life for a LPC blade set and       4.0 work-hours x $85 per          16,550          16,890         422,250
 replacement of blades.                  hour = $340.
----------------------------------------------------------------------------------------------------------------

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

[[Page 18760]]

safety in air commerce. This regulation is within the scope of that 
authority because it addresses an unsafe condition that is likely to 
exist or develop on products identified in this rulemaking action.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to engines, propellers, and 
associated appliances to the Manager, Engine and Propeller Standards 
Branch, Policy and Innovation Division.

Regulatory Findings

    We determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify this proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13   [Amended]

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

Rolls-Royce Deutschland Ltd & Co KG; Docket No. FAA-2018-0235; 
Product Identifier 2018-NE-08-AD.

(a) Comments Due Date

    We must receive comments by June 14, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD) Tay 
620-15 turbofan engines with low-pressure compressor (LPC) fan 
blades, having part numbers (P/Ns) JR30649, JR31702, JR31983, 
JR33863, or JR33864, installed.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7230, Turbine Engine 
Compressor Section.

(e) Unsafe Condition

    This AD was prompted by reports of LPC fan blade retention lug 
failures. We are issuing this AD to prevent failure of the LPC fan 
blade retention lug. The unsafe condition, if not addressed, could 
result in loss of engine thrust control and reduced control of the 
airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    (1) Within 30 days after the effective date of this AD, 
determine the number of DFL treatments that were applied to the LPC 
fan blade by reviewing the maintenance records or using an 
alternative method in steps C or N, as applicable, of the 
Accomplishment Instruction, paragraph 3, of RRD ALERT Non-
Modification Service Bulletin (NMSB) TAY-72-A1834, dated November 
17, 2017.
    (2) Depending on the results of the records review, do the 
following, as applicable:
    (i) If the number of DFL treatments is fewer than 13, mark the 
LPC fan blade dovetail root with a suffix code during the next 
scheduled LPC fan blade removal using steps H or R, as applicable, 
of the Accomplishment Instruction, paragraph 3, of RRD ALERT NMSB 
TAY-72-A1834, dated November 17, 2017.
    (ii) If the number of DFL treatments is 13 or more, replace the 
affected LPC fan blade with a part eligible for installation within 
500 flight hours after effective date of this AD.

(h) Installation Prohibition

    After the effective date of this AD, do not install an affected 
LPC fan blade on any engine unless it has been determined that the 
LPC fan blade has had fewer than 13 DFL treatments and has been 
marked in accordance with the instructions of RRD ALERT NMSB TAY-72-
A1834, dated November 17, 2017.

(i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, ECO Branch, FAA, has the authority to approve 
AMOCs for this AD, if requested using the procedures found in 14 CFR 
39.19. In accordance with 14 CFR 39.19, send your request to your 
principal inspector or local Flight Standards District Office, as 
appropriate. If sending information directly to the manager of the 
ECO Branch, send it to the attention of the person identified in 
paragraph (j)(1) of this AD. You may email your request to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

(j) Related Information

    (1) For more information about this AD, contact Robert Green, 
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: 781-238-7754; fax: 781-238-7199; email: 
[email protected].
    (2) Refer to European Aviation Safety Agency (EASA) AD 2018-
0013, dated January 17, 2018, for more information. You may examine 
the EASA AD in the AD docket on the internet at http://www.regulations.gov by searching for and locating it in Docket No. 
FAA-2018-0235.
    (3) For service information identified in this proposed AD, 
contact Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, 
Dahlewitz, 15827 Blankenfelde-Mahlow, Germany; phone: +49 (0) 33-
7086-1883; fax: +49 (0) 33-7086-3276. You may view this referenced 
service information at the FAA, Engine & Propeller Standards Branch, 
1200 District Avenue, Burlington, MA 01803. For information on the 
availability of this material at the FAA, call 781-238-7759.

    Issued in Burlington, Massachusetts, on April 25, 2018.
Robert J. Ganley,
Manager, Engine and Propeller Standards Branch, Aircraft Certification 
Service.
[FR Doc. 2018-09011 Filed 4-27-18; 8:45 am]
 BILLING CODE 4910-13-P
18758 Federal Register / Vol. 83, No. 83 / Monday, April 30, 2018 / Proposed Rules

List of Subjects in 14 CFR Part 39 Airworthiness Limitation Items (DT–ALI),’’ FAA, Transport Standards Branch, 2200
Revision 02, dated August 28, 2017, or South 216th Street, Des Moines, WA. For
Air transportation, Aircraft, Aviation within 90 days after the effective date of this information on the availability of this
safety, Incorporation by reference, AD, whichever occurs later. material at the FAA, call 206–231–3195.
Safety.
(h) No Alternative Actions or Intervals Issued in Des Moines, Washington, on
The Proposed Amendment After the maintenance or inspection April 20, 2018.
Accordingly, under the authority program has been revised as required by Michael Kaszycki,
delegated to me by the Administrator, paragraph (g) of this AD, no alternative Acting Director, System Oversight Division,
the FAA proposes to amend 14 CFR part actions (e.g., inspections) or intervals may be Aircraft Certification Service.
used unless the actions or intervals are
39 as follows: [FR Doc. 2018–09005 Filed 4–27–18; 8:45 am]
approved as an alternative method of
BILLING CODE 4910–13–P
compliance (AMOC) in accordance with the
PART 39—AIRWORTHINESS procedures specified in paragraph (j)(1) of
DIRECTIVES this AD.
DEPARTMENT OF TRANSPORTATION
■ 1. The authority citation for part 39 (i) Terminating Actions for AD 2018–01–07
continues to read as follows: Accomplishing the actions required by this Federal Aviation Administration
Authority: 49 U.S.C. 106(g), 40113, 44701. AD terminates all requirements of AD 2018–
01–07. 14 CFR Part 39
§ 39.13 [Amended]
(j) Other FAA AD Provisions [Docket No. FAA–2018–0235; Product
■ 2. The FAA amends § 39.13 by adding Identifier 2018–NE–08–AD]
The following provisions also apply to this
the following new airworthiness AD:
directive (AD): RIN 2120–AA64
(1) Alternative Methods of Compliance
Airbus: Docket No. FAA–2018–0360; Product (AMOCs): The Manager, International
Airworthiness Directives; Rolls-Royce
Identifier 2018–NM–009–AD. Section, Transport Standards Branch, FAA,
has the authority to approve AMOCs for this Deutschland Ltd & Co KG Tay 620–15
(a) Comments Due Date AD, if requested using the procedures found Engines
We must receive comments by June 14, in 14 CFR 39.19. In accordance with 14 CFR
39.19, send your request to your principal
AGENCY: Federal Aviation
2018.
inspector or local Flight Standards District Administration (FAA), DOT.
(b) Affected ADs Office, as appropriate. If sending information ACTION: Notice of proposed rulemaking
This AD affects AD 2018–01–07, directly to the International Section, send it (NPRM).
Amendment 39–19148 (83 FR 2042, January to the attention of the person identified in
16, 2018) (‘‘AD 2018–01–07’’). paragraph (k)(2) of this AD. Information may SUMMARY: We propose to adopt a new
be emailed to: 9-ANM-116-AMOC- airworthiness directive (AD) for Rolls-
(c) Applicability REQUESTS@faa.gov. Before using any Royce Deutschland Ltd & Co KG (RRD)
This AD applies to Airbus Model A300 B4– approved AMOC, notify your appropriate Tay 620–15 turbofan engines. This AD
601, B4–603, B4–620, B4–622, B4–605R, B4– principal inspector, or lacking a principal
limits service life of the low-pressure
622R, F4–605R, F4–622R, and C4–605R inspector, the manager of the local flight
Variant F airplanes, certificated in any standards district office/certificate holding compressor (LPC) fan blades based on
category, all manufacturer serial numbers. district office. the number of dry-film lubricant (DFL)
(2) Contacting the Manufacturer: For any treatments. The AD was prompted by
(d) Subject requirement in this AD to obtain corrective reports of LPC fan blade retention lug
Air Transport Association (ATA) of actions from a manufacturer, the action must failures. We are proposing this AD to
America Code 05, Time limits/maintenance be accomplished using a method approved correct the unsafe condition on these
checks. by the Manager, International Section, products.
Transport Standards Branch, FAA; or the
(e) Reason DATES: We must receive comments on
European Aviation Safety Agency (EASA); or
This AD was prompted by a determination Airbus’s EASA Design Organization this proposed AD by June 14, 2018.
that more restrictive maintenance Approval (DOA). If approved by the DOA, ADDRESSES: You may send comments,
requirements and airworthiness limitations the approval must include the DOA-
are necessary. We are issuing this AD to
using the procedures found in 14 CFR
authorized signature.
prevent fatigue cracking, damage, or 11.43 and 11.45, by any of the following
corrosion in principal structural elements, (k) Related Information methods:
which could result in reduced structural (1) Refer to Mandatory Continuing • Federal eRulemaking Portal: Go to
integrity of the airplane. Airworthiness Information (MCAI) AD 2017– http://www.regulations.gov. Follow the
0205, dated October 12, 2017, for related instructions for submitting comments.
(f) Compliance information. This MCAI may be found in the • Fax: 202–493–2251.
Comply with this AD within the AD docket on the internet at http:// • Mail: U.S. Department of
compliance times specified, unless already www.regulations.gov by searching for and
Transportation, Docket Operations, M–
done. locating Docket No. FAA–2018–0360.
(2) For more information about this AD, 30, West Building Ground Floor, Room
(g) Revision of Maintenance or Inspection contact Dan Rodina, Aerospace Engineer, W12 140, 1200 New Jersey Avenue SE,
Program International Section, Transport Standards Washington, DC 20590.
Within 90 days after the effective date of Branch, FAA, 2200 South 216th Street, Des • Hand Delivery: Deliver to Mail
this AD, revise the maintenance or inspection Moines, WA 98198; telephone and fax 206– address above between 9 a.m. and 5
nshattuck on DSK9F9SC42PROD with PROPOSALS

program, as applicable, to incorporate the 231–3225. p.m., Monday through Friday, except
information specified in Airbus A300–600 (3) For service information identified in Federal holidays.
Airworthiness Limitations Section (ALS), this AD, contact Airbus SAS, Airworthiness For service information identified in
Part 2, ‘‘Damage Tolerant Airworthiness Office—EAW, 1 Rond Point Maurice
Limitation Items (DT–ALI),’’ Revision 02, Bellonte, 31707 Blagnac Cedex, France; this NPRM, contact Rolls-Royce
dated August 28, 2017. The initial telephone +33 5 61 93 36 96; fax +33 5 61 Deutschland Ltd & Co KG, Eschenweg
compliance times for doing the tasks are at 93 44 51; email account.airworth-eas@ 11, Dahlewitz, 15827 Blankenfelde-
the applicable times specified in Airbus airbus.com; internet http://www.airbus.com. Mahlow, Germany; phone: +49 (0) 33–
A300–600 ALS, Part 2, ‘‘Damage Tolerant You may view this service information at the 7086–1883; fax: +49 (0) 33–7086–3276.

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18760 Federal Register / Vol. 83, No. 83 / Monday, April 30, 2018 / Proposed Rules

safety in air commerce. This regulation Rolls-Royce Deutschland Ltd & Co KG; if requested using the procedures found in 14
is within the scope of that authority Docket No. FAA–2018–0235; Product CFR 39.19. In accordance with 14 CFR 39.19,
because it addresses an unsafe condition Identifier 2018–NE–08–AD. send your request to your principal inspector
that is likely to exist or develop on or local Flight Standards District Office, as
(a) Comments Due Date
appropriate. If sending information directly
products identified in this rulemaking We must receive comments by June 14, to the manager of the ECO Branch, send it to
action. 2018. the attention of the person identified in
This AD is issued in accordance with paragraph (j)(1) of this AD. You may email
authority delegated by the Executive (b) Affected ADs
your request to: ANE-AD-AMOC@faa.gov.
Director, Aircraft Certification Service, None. (2) Before using any approved AMOC,
as authorized by FAA Order 8000.51C. (c) Applicability notify your appropriate principal inspector,
In accordance with that order, issuance or lacking a principal inspector, the manager
This AD applies to Rolls-Royce of the local flight standards district office/
of ADs is normally a function of the Deutschland Ltd & Co KG (RRD) Tay 620–15
Compliance and Airworthiness certificate holding district office.
turbofan engines with low-pressure
Division, but during this transition compressor (LPC) fan blades, having part (j) Related Information
period, the Executive Director has numbers (P/Ns) JR30649, JR31702, JR31983, (1) For more information about this AD,
delegated the authority to issue ADs JR33863, or JR33864, installed. contact Robert Green, Aerospace Engineer,
applicable to engines, propellers, and (d) Subject ECO Branch, FAA, 1200 District Avenue,
associated appliances to the Manager, Burlington, MA 01803; phone: 781–238–
Joint Aircraft System Component (JASC)
Engine and Propeller Standards Branch, 7754; fax: 781–238–7199; email:
Code 7230, Turbine Engine Compressor
Policy and Innovation Division. Section.
Robert.Green@faa.gov.
(2) Refer to European Aviation Safety
Regulatory Findings (e) Unsafe Condition Agency (EASA) AD 2018–0013, dated
We determined that this proposed AD This AD was prompted by reports of LPC January 17, 2018, for more information. You
would not have federalism implications fan blade retention lug failures. We are may examine the EASA AD in the AD docket
under Executive Order 13132. This issuing this AD to prevent failure of the LPC on the internet at http://www.regulations.gov
fan blade retention lug. The unsafe condition, by searching for and locating it in Docket No.
proposed AD would not have a
if not addressed, could result in loss of FAA–2018–0235.
substantial direct effect on the States, on (3) For service information identified in
the relationship between the national engine thrust control and reduced control of
the airplane. this proposed AD, contact Rolls-Royce
Government and the States, or on the Deutschland Ltd & Co KG, Eschenweg 11,
distribution of power and (f) Compliance Dahlewitz, 15827 Blankenfelde-Mahlow,
responsibilities among the various Comply with this AD within the Germany; phone: +49 (0) 33–7086–1883; fax:
levels of government. compliance times specified, unless already +49 (0) 33–7086–3276. You may view this
For the reasons discussed above, I done. referenced service information at the FAA,
certify this proposed regulation: Engine & Propeller Standards Branch, 1200
(g) Required Actions District Avenue, Burlington, MA 01803. For
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866, (1) Within 30 days after the effective date information on the availability of this
(2) Is not a ‘‘significant rule’’ under of this AD, determine the number of DFL material at the FAA, call 781–238–7759.
the DOT Regulatory Policies and treatments that were applied to the LPC fan Issued in Burlington, Massachusetts, on
blade by reviewing the maintenance records April 25, 2018.
Procedures (44 FR 11034, February 26, or using an alternative method in steps C or
1979), N, as applicable, of the Accomplishment Robert J. Ganley,
(3) Will not affect intrastate aviation Instruction, paragraph 3, of RRD ALERT Non- Manager, Engine and Propeller Standards
in Alaska, and Modification Service Bulletin (NMSB) TAY– Branch, Aircraft Certification Service.
(4) Will not have a significant 72–A1834, dated November 17, 2017. [FR Doc. 2018–09011 Filed 4–27–18; 8:45 am]
economic impact, positive or negative, (2) Depending on the results of the records BILLING CODE 4910–13–P
on a substantial number of small entities review, do the following, as applicable:
under the criteria of the Regulatory (i) If the number of DFL treatments is fewer
Flexibility Act. than 13, mark the LPC fan blade dovetail root DEPARTMENT OF TRANSPORTATION
with a suffix code during the next scheduled
List of Subjects in 14 CFR Part 39 LPC fan blade removal using steps H or R, Federal Aviation Administration
Air transportation, Aircraft, Aviation as applicable, of the Accomplishment
Instruction, paragraph 3, of RRD ALERT
safety, Incorporation by reference, 14 CFR Part 39
NMSB TAY–72–A1834, dated November 17,
Safety. 2017. [Docket No. FAA–2018–0357; Product
The Proposed Amendment (ii) If the number of DFL treatments is 13 Identifier 2018–NM–035–AD]
or more, replace the affected LPC fan blade
Accordingly, under the authority with a part eligible for installation within 500 RIN 2120–AA64
delegated to me by the Administrator, flight hours after effective date of this AD.
the FAA proposes to amend 14 CFR part Airworthiness Directives; Dassault
(h) Installation Prohibition Aviation Airplanes
39 as follows:
After the effective date of this AD, do not
PART 39—AIRWORTHINESS install an affected LPC fan blade on any AGENCY: Federal Aviation
DIRECTIVES engine unless it has been determined that the Administration (FAA), DOT.
LPC fan blade has had fewer than 13 DFL ACTION: Notice of proposed rulemaking
nshattuck on DSK9F9SC42PROD with PROPOSALS

■ 1. The authority citation for part 39 treatments and has been marked in (NPRM).
continues to read as follows: accordance with the instructions of RRD
ALERT NMSB TAY–72–A1834, dated SUMMARY: We propose to adopt a new
Authority: 49 U.S.C. 106(g), 40113, 44701. November 17, 2017.
airworthiness directive (AD) for certain
§ 39.13 [Amended] (i) Alternative Methods of Compliance Dassault Aviation Model FALCON
■ 2. The FAA amends § 39.13 by adding (AMOCs) 2000EX airplanes. This proposed AD
the following new airworthiness (1) The Manager, ECO Branch, FAA, has was prompted by the manufacturer
directive (AD): the authority to approve AMOCs for this AD, revising the airplane maintenance

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Document Created: 2018-04-28 01:04:03
Document Modified: 2018-04-28 01:04:03
Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Proposed Rules
Action		Notice of proposed rulemaking (NPRM).
Dates		We must receive comments on this proposed AD by June 14, 2018.
Contact		Robert Green, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781- 238-7754; fax: 781-238-7199; email: [email protected]
FR Citation		83 FR 18758
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
83 FR 18758 - Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Tay 620-15 Engines

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 83, Issue 83 (April 30, 2018)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
