83 FR 50860 - Airworthiness Directives; Pratt & Whitney Turbofan Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 196 (October 10, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 196 (October 10, 2018)
| Page Range | 50860-50862 | |
| FR Document | 2018-21693 |
[Federal Register Volume 83, Number 196 (Wednesday, October 10, 2018)] [Proposed Rules] [Pages 50860-50862] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-21693] ======================================================================== Proposed Rules Federal Register ________________________________________________________________________ This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. ======================================================================== Federal Register / Vol. 83, No. 196 / Wednesday, October 10, 2018 / Proposed Rules [[Page 50860]] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0624; Product Identifier 2013-NE-24-AD] RIN 2120-AA64 Airworthiness Directives; Pratt & Whitney Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to supersede Airworthiness Directive (AD) 2017-11- 06, which applies to all Pratt & Whitney (PW) PW2037, PW2037D, PW2037M, PW2040, PW2040D, PW2043, PW2143, PW2643, and F117-PW-100 turbofan engine models. AD 2017-11-06 requires initial and repetitive on-wing eddy current inspections (ECIs) of affected engines with certain diffuser and high-pressure turbine (HPT) cases installed. AD 2017-11-06 also requires a fluorescent-penetrant inspection (FPI) of the diffuser case rear flange and the HPT case front flange. Since we issued AD 2017-11-06, we learned of designated engineering representative (DER)- approved diffuser case M-flange replacement repairs. This proposed AD would require an on-wing ECI of all diffuser case M-flange replacement repairs. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by November 26, 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 Pratt & Whitney, 400 Main St., East Hartford, CT 06118; phone: 860-565-0140; fax: 860-565-5442; email: [email protected]; internet: http://fleetcare.pw.utc.com. 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- 0624; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the regulatory evaluation, any comments received, and other information. The street 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: Kevin M. Clark, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7088; 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 proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2018-0624; Product Identifier 2013-NE-24-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 proposed AD. Discussion We issued AD 2017-11-06, Amendment 39-18905 (82 FR 26979, June 13, 2017), (``AD 2017-11-06''), for all PW PW2037, PW2037D, PW2037M, PW2040, PW2040D, PW2043, PW2143, PW2643, and F117-PW-100 turbofan engine models. AD 2017-11-06 requires initial and repetitive on-wing ECIs of affected engines with certain diffuser and HPT cases installed. AD 2017-11-06 also requires an FPI of the diffuser case rear flange and the HPT case front flange. AD 2017-11-06 resulted from the manufacturer determining through analysis that the inspections required by AD 2014- 05-32, which was prompted by a rupture of the diffuser case M-flange, were not adequate to maintain safety for diffuser cases that incorporate a wrought diffuser case M-flange. Also, repaired wrought flanges cannot be distinguished from other wrought flanges or from non- repaired flanges on diffuser cases installed on the affected engines. We issued AD 2017-11-06 to add additional repetitive, on-wing ECIs. Actions Since AD 2017-11-06 Was Issued Since we issued AD 2017-11-06, we learned of DER-approved diffuser case M-flange replacement repairs. The language in AD 2017-11-06 requires additional on-wing ECIs for PW repairs; however, it does not address DER-approved diffuser case M-flange replacement repairs. The DER-approved diffuser case M-flange replacement repairs use the same wrought material as PWs and therefore require the same additional on- wing ECIs. Related Service Information Under 1 CFR Part 51 We reviewed PW Service Bulletin (SB) No. PW2000 72-763, Revision No. 1, dated August 30, 2013. The SB describes procedures for a one- time ECI inspection of the engine diffuser case. We also reviewed PW Alert Service Bulletin (ASB) No. PW2000 A72-765, Revision No. 4, dated January 25, 2018. The ASB describes procedures for repetitive on-wing ECIs of the engine diffuser case assembly. This service information is reasonably available because the interested parties have access to it through their normal course [[Page 50861]] 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 retain all of the requirements of AD 2017- 11-06. This proposed AD would also require an on-wing ECI of all diffuser case M-flange replacement repairs. Costs of Compliance We estimate that this proposed AD affects 910 engines installed on airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost on U.S. Action Labor cost Parts cost Cost per product operators ---------------------------------------------------------------------------------------------------------------- On-wing/module ECI Inspection.... 8 work-hours x $85 $0 $680............... $230,520 per per hour = $680. inspection cycle. FPI Inspection................... 3 work-hours x $85 20 $275 per inspection $250,250 per per hour = $255. cycle. inspection cycle. ---------------------------------------------------------------------------------------------------------------- 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. 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 have 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 that the 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 removing Airworthiness Directive (AD) 2017-11-06, Amendment 39-18905 (82 FR 26979, June 13, 2017), and adding the following new AD: Pratt & Whitney Division: Docket No. FAA-2018-0624; Product Identifier 2013-NE-24-AD. (a) Comments Due Date The FAA must receive comments on this AD action by November 26, 2018. (b) Affected ADs This AD replaces AD 2017-11-06, Amendment 39-18905 (82 FR 26979, June 13, 2017). (c) Applicability This AD applies to all Pratt & Whitney (PW) PW2037, PW2037D, PW2037M, PW2040, PW2040D, PW2043, PW2143, PW2643, and F117-PW-100 turbofan engines. (d) Subject Joint Aircraft System Component (JASC) Code 7200, Turbine/ Turboprop Engine. (e) Unsafe Condition This AD was prompted by a rupture of the diffuser-to-high- pressure turbine (HPT) case flange. We are issuing this AD to prevent failure of the diffuser-to-HPT case flange. The unsafe condition, if not addressed, could result in uncontained diffuser- to-HPT case flange release, damage to the engine, and damage to the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) For diffuser case, part number (P/N) 1B7461, serial numbers (S/Ns) DGGUAK1306 and DGGUAK1308, and HPT case, P/N 1B2440, S/N DKLBCS1032: (i) Within 100 flight cycles after the effective date of this AD, perform an eddy current inspection (ECI) of the diffuser case and the HPT case M-flange in accordance with PW Service Bulletin (SB) No. PW2000 72-763, Revision No. 1, dated August 30, 2013. (ii) Reserved. (2) For all diffuser and HPT cases, at the next piece-part opportunity after the effective date of this AD and every piece-part opportunity thereafter, perform a high sensitivity fluorescent- penetrant inspection (FPI) of the entire diffuser case rear flange (M-flange) and boltholes, and the entire HPT case forward flange (M- flange) and boltholes. (3) For all diffuser cases installed on any affected engine model except for F117-PW-100 turbofan engines, that have not [[Page 50862]] incorporated PW SB PW2000-72-364, have incorporated PW SB PW2000-72- 700, or have had an M-flange replacement, perform initial and repetitive ECIs of the diffuser case M-flange as follows: (i) Perform an initial ECI in accordance with the ``Last Shop Visit Activity'' column and before exceeding the maximum cycles since the last shop visit activity in the ``Initial Inspection'' column of Table 1 of PW Alert Service Bulletin (ASB) No. PW2000 A72- 765, Revision No. 4, dated January 25, 2018, or within 1,000 cycles from the effective date of this AD, whichever occurs later. (ii) Evaluate the inspection results and perform re-inspections as necessary in accordance with Accomplishment Instructions, ``For Engines Installed on the Aircraft,'' paragraph 5, or the Accomplishment Instructions, ``For Engines Removed from the Aircraft,'' paragraph 4, of PW ASB No. PW2000 A72-765, Revision No. 4, dated January 25, 2018, as applicable. If given a cycle range, perform the subsequent inspections before exceeding the maximum number of cycles. (iii) Inspect the diffuser case M-flange using, as applicable, either the Accomplishment Instructions, ``For Engines Installed on the Aircraft,'' paragraphs 3.I. through 3.J., or the Accomplishment Instructions, ``For Engines Removed from the Aircraft,'' paragraphs 3.D. through 3.E., of PW ASB No. PW2000 A72-765, Revision No. 4, dated January 25, 2018. (h) Definition For the purpose of this AD, a ``piece-part opportunity'' is defined as when the part is completely disassembled. (i) Credit for Previous Actions (1) You may take credit for the diffuser case and HPT case inspections required by paragraphs (g)(1) and (3) of this AD if you performed: (i) an ECI of the diffuser case and the HPT case M-flange using the Accomplishment Instructions of PW SB No. PW2000 72-763, Original Issue, dated March 22, 2013, or (ii) a high sensitivity FPI of the diffuser case and the HPT case at a piece-part opportunity after January 1, 2010. (2) You may take credit for only the diffuser case inspections required by paragraphs (g)(1) and (3) of this AD if you performed an ECI of the diffuser case M-flange using the Accomplishment Instructions of PW ASB No. PW2000 A72-765, Revision No. 3, dated December 19, 2017, or an earlier version. (j) 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 certification office, send it to the attention of the person identified in paragraph (k)(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. (3) AMOCs approved for AD 2017-11-06 (82 FR 26979, June 13, 2017) are approved as AMOCs for the corresponding provisions of this AD. (k) Related Information (1) For more information about this AD, contact Kevin M. Clark, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7088; fax: 781-238-7199; email: [email protected]. (2) For service information identified in this AD, contact Pratt & Whitney, 400 Main St., East Hartford, CT, 06118; phone: 860-565- 0140; fax: 860-565-5442; email: [email protected]; internet: http://fleetcare.pw.utc.com. 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 September 28, 2018. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018-21693 Filed 10-9-18; 8:45 am] BILLING CODE 4910-13-P
![50860
Proposed Rules Federal Register
Vol. 83, No. 196
Wednesday, October 10, 2018
This section of the FEDERAL REGISTER M–30, West Building Ground Floor, will also post a report summarizing each
contains notices to the public of the proposed Room W12–140, 1200 New Jersey substantive verbal contact we receive
issuance of rules and regulations. The Avenue SE, Washington, DC 20590. about this proposed AD.
purpose of these notices is to give interested • Hand Delivery: Deliver to Mail
persons an opportunity to participate in the Discussion
address above between 9 a.m. and 5
rule making prior to the adoption of the final We issued AD 2017–11–06,
rules.
p.m., Monday through Friday, except
Federal holidays. Amendment 39–18905 (82 FR 26979,
For service information identified in June 13, 2017), (‘‘AD 2017–11–06’’), for
this NPRM, contact Pratt & Whitney, all PW PW2037, PW2037D, PW2037M,
DEPARTMENT OF TRANSPORTATION
400 Main St., East Hartford, CT 06118; PW2040, PW2040D, PW2043, PW2143,
Federal Aviation Administration phone: 860–565–0140; fax: 860–565– PW2643, and F117–PW–100 turbofan
5442; email: help24@pw.utc.com; engine models. AD 2017–11–06 requires
14 CFR Part 39 internet: http://fleetcare.pw.utc.com. initial and repetitive on-wing ECIs of
You may view this service information affected engines with certain diffuser
[Docket No. FAA–2018–0624; Product and HPT cases installed. AD 2017–11–
Identifier 2013–NE–24–AD] at the FAA, Engine & Propeller
Standards Branch, 1200 District 06 also requires an FPI of the diffuser
RIN 2120–AA64 Avenue, Burlington, MA 01803. For case rear flange and the HPT case front
information on the availability of this flange. AD 2017–11–06 resulted from
Airworthiness Directives; Pratt & material at the FAA, call 781–238–7759. the manufacturer determining through
Whitney Turbofan Engines analysis that the inspections required by
Examining the AD Docket AD 2014–05–32, which was prompted
AGENCY: Federal Aviation
Administration (FAA), DOT. You may examine the AD docket on by a rupture of the diffuser case
the internet at http:// M-flange, were not adequate to maintain
ACTION: Notice of proposed rulemaking
www.regulations.gov by searching for safety for diffuser cases that incorporate
(NPRM).
and locating Docket No. FAA–2018– a wrought diffuser case M-flange. Also,
SUMMARY: We propose to supersede 0624; or in person at Docket Operations repaired wrought flanges cannot be
Airworthiness Directive (AD) 2017–11– between 9 a.m. and 5 p.m., Monday distinguished from other wrought
06, which applies to all Pratt & Whitney through Friday, except Federal holidays. flanges or from non-repaired flanges on
(PW) PW2037, PW2037D, PW2037M, The AD docket contains this NPRM, the diffuser cases installed on the affected
PW2040, PW2040D, PW2043, PW2143, regulatory evaluation, any comments engines. We issued AD 2017–11–06 to
PW2643, and F117–PW–100 turbofan received, and other information. The add additional repetitive, on-wing ECIs.
engine models. AD 2017–11–06 requires street address for Docket Operations Actions Since AD 2017–11–06 Was
initial and repetitive on-wing eddy (phone: 800–647–5527) is listed above. Issued
current inspections (ECIs) of affected Comments will be available in the AD
engines with certain diffuser and high- Since we issued AD 2017–11–06, we
docket shortly after receipt.
pressure turbine (HPT) cases installed. learned of DER-approved diffuser case
FOR FURTHER INFORMATION CONTACT: M-flange replacement repairs. The
AD 2017–11–06 also requires a Kevin M. Clark, Aerospace Engineer,
fluorescent-penetrant inspection (FPI) of language in AD 2017–11–06 requires
ECO Branch, FAA, 1200 District additional on-wing ECIs for PW repairs;
the diffuser case rear flange and the HPT Avenue, Burlington, MA 01803; phone:
case front flange. Since we issued AD however, it does not address DER-
781–238–7088; fax: 781–238–7199; approved diffuser case M-flange
2017–11–06, we learned of designated email: kevin.m.clark@faa.gov.
engineering representative (DER)- replacement repairs. The DER-approved
SUPPLEMENTARY INFORMATION: diffuser case M-flange replacement
approved diffuser case M-flange
replacement repairs. This proposed AD Comments Invited repairs use the same wrought material
would require an on-wing ECI of all as PWs and therefore require the same
We invite you to send any written additional on-wing ECIs.
diffuser case M-flange replacement relevant data, views, or arguments about
repairs. We are proposing this AD to this proposed AD. Send your comments Related Service Information Under 1
address the unsafe condition on these to an address listed under the CFR Part 51
products. ADDRESSES section. Include ‘‘Docket No. We reviewed PW Service Bulletin
DATES: We must receive comments on FAA–2018–0624; Product Identifier (SB) No. PW2000 72–763, Revision No.
this proposed AD by November 26, 2013–NE–24–AD’’ at the beginning of 1, dated August 30, 2013. The SB
2018. your comments. We specifically invite describes procedures for a one-time ECI
ADDRESSES: You may send comments, comments on the overall regulatory, inspection of the engine diffuser case.
using the procedures found in 14 CFR economic, environmental, and energy We also reviewed PW Alert Service
daltland on DSKBBV9HB2PROD with PROPOSALS
11.43 and 11.45, by any of the following aspects of this NPRM. We will consider Bulletin (ASB) No. PW2000 A72–765,
methods: all comments received by the closing Revision No. 4, dated January 25, 2018.
• Federal eRulemaking Portal: Go to date and may amend this NPRM The ASB describes procedures for
http://www.regulations.gov. Follow the because of those comments. repetitive on-wing ECIs of the engine
instructions for submitting comments. We will post all comments we diffuser case assembly. This service
• Fax: 202–493–2251. receive, without change, to http:// information is reasonably available
• Mail: U.S. Department of www.regulations.gov, including any because the interested parties have
Transportation, Docket Operations, personal information you provide. We access to it through their normal course
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![Federal Register / Vol. 83, No. 196 / Wednesday, October 10, 2018 / Proposed Rules 50861
of business or by the means identified develop in other products of the same Costs of Compliance
in the ADDRESSES section. type design.
We estimate that this proposed AD
FAA’s Determination Proposed AD Requirements affects 910 engines installed on
This proposed AD would retain all of airplanes of U.S. registry.
We are proposing this AD because we the requirements of AD 2017–11–06.
evaluated all the relevant information We estimate the following costs to
This proposed AD would also require an comply with this proposed AD:
and determined the unsafe condition on-wing ECI of all diffuser case M-flange
described previously is likely to exist or replacement repairs.
ESTIMATED COSTS
Action Labor cost Parts cost Cost per product Cost on U.S. operators
On-wing/module ECI Inspec- 8 work-hours × $85 per hour $0 $680 ....................................... $230,520 per inspection
tion. = $680. cycle.
FPI Inspection ........................ 3 work-hours × $85 per hour 20 $275 per inspection cycle ...... $250,250 per inspection
= $255. cycle.
Authority for This Rulemaking responsibilities among the various (b) Affected ADs
levels of government. This AD replaces AD 2017–11–06,
Title 49 of the United States Code Amendment 39–18905 (82 FR 26979, June
For the reasons discussed above, I
specifies the FAA’s authority to issue 13, 2017).
certify that the proposed regulation:
rules on aviation safety. Subtitle I,
Section 106, describes the authority of (1) Is not a ‘‘significant regulatory (c) Applicability
the FAA Administrator. Subtitle VII, action’’ under Executive Order 12866, This AD applies to all Pratt & Whitney
Aviation Programs, describes in more (2) Is not a ‘‘significant rule’’ under (PW) PW2037, PW2037D, PW2037M,
detail the scope of the Agency’s the DOT Regulatory Policies and PW2040, PW2040D, PW2043, PW2143,
Procedures (44 FR 11034, February 26, PW2643, and F117–PW–100 turbofan
authority. engines.
We are issuing this rulemaking under 1979),
the authority described in Subtitle VII, (3) Will not affect intrastate aviation (d) Subject
Part A, Subpart III, Section 44701, in Alaska, and Joint Aircraft System Component (JASC)
‘‘General requirements.’’ Under that (4) Will not have a significant Code 7200, Turbine/Turboprop Engine.
section, Congress charges the FAA with economic impact, positive or negative, (e) Unsafe Condition
promoting safe flight of civil aircraft in on a substantial number of small entities
This AD was prompted by a rupture of the
air commerce by prescribing regulations under the criteria of the Regulatory diffuser-to-high-pressure turbine (HPT) case
for practices, methods, and procedures Flexibility Act. flange. We are issuing this AD to prevent
the Administrator finds necessary for List of Subjects in 14 CFR Part 39 failure of the diffuser-to-HPT case flange. The
safety in air commerce. This regulation unsafe condition, if not addressed, could
is within the scope of that authority Air transportation, Aircraft, Aviation result in uncontained diffuser-to-HPT case
because it addresses an unsafe condition safety, Incorporation by reference, flange release, damage to the engine, and
Safety. damage to the airplane.
that is likely to exist or develop on
products identified in this rulemaking The Proposed Amendment (f) Compliance
action. Comply with this AD within the
This AD is issued in accordance with Accordingly, under the authority compliance times specified, unless already
authority delegated by the Executive delegated to me by the Administrator, done.
Director, Aircraft Certification Service, the FAA proposes to amend 14 CFR part
(g) Required Actions
as authorized by FAA Order 8000.51C. 39 as follows:
(1) For diffuser case, part number (P/N)
In accordance with that order, issuance PART 39—AIRWORTHINESS 1B7461, serial numbers (S/Ns) DGGUAK1306
of ADs is normally a function of the DIRECTIVES and DGGUAK1308, and HPT case, P/N
Compliance and Airworthiness 1B2440, S/N DKLBCS1032:
Division, but during this transition (i) Within 100 flight cycles after the
■ 1. The authority citation for part 39
period, the Executive Director has effective date of this AD, perform an eddy
continues to read as follows: current inspection (ECI) of the diffuser case
delegated the authority to issue ADs
Authority: 49 U.S.C. 106(g), 40113, 44701. and the HPT case M-flange in accordance
applicable to engines, propellers, and
with PW Service Bulletin (SB) No. PW2000
associated appliances to the Manager, § 39.13 [Amended] 72–763, Revision No. 1, dated August 30,
Engine and Propeller Standards Branch, 2013.
■ 2. The FAA amends § 39.13 by
Policy and Innovation Division. (ii) Reserved.
removing Airworthiness Directive (AD)
(2) For all diffuser and HPT cases, at the
Regulatory Findings 2017–11–06, Amendment 39–18905 (82
next piece-part opportunity after the effective
FR 26979, June 13, 2017), and adding
daltland on DSKBBV9HB2PROD with PROPOSALS
We have determined that this date of this AD and every piece-part
the following new AD: opportunity thereafter, perform a high
proposed AD would not have federalism
Pratt & Whitney Division: Docket No. FAA– sensitivity fluorescent-penetrant inspection
implications under Executive Order
2018–0624; Product Identifier 2013–NE– (FPI) of the entire diffuser case rear flange
13132. This proposed AD would not (M-flange) and boltholes, and the entire HPT
24–AD.
have a substantial direct effect on the case forward flange (M-flange) and boltholes.
States, on the relationship between the (a) Comments Due Date (3) For all diffuser cases installed on any
national Government and the States, or The FAA must receive comments on this affected engine model except for F117–PW–
on the distribution of power and AD action by November 26, 2018. 100 turbofan engines, that have not
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incorporated PW SB PW2000–72–364, have (2) Before using any approved AMOC, DATES: We must receive comments on
incorporated PW SB PW2000–72–700, or notify your appropriate principal inspector, this proposed AD by November 26,
have had an M-flange replacement, perform or lacking a principal inspector, the manager 2018.
initial and repetitive ECIs of the diffuser case of the local flight standards district office/
M-flange as follows: certificate holding district office. ADDRESSES: You may send comments,
(i) Perform an initial ECI in accordance (3) AMOCs approved for AD 2017–11–06 using the procedures found in 14 CFR
with the ‘‘Last Shop Visit Activity’’ column (82 FR 26979, June 13, 2017) are approved as 11.43 and 11.45, by any of the following
and before exceeding the maximum cycles AMOCs for the corresponding provisions of methods:
since the last shop visit activity in the this AD. • Federal eRulemaking Portal: Go to
‘‘Initial Inspection’’ column of Table 1 of PW
Alert Service Bulletin (ASB) No. PW2000 (k) Related Information http://www.regulations.gov. Follow the
A72–765, Revision No. 4, dated January 25, (1) For more information about this AD, instructions for submitting comments.
2018, or within 1,000 cycles from the contact Kevin M. Clark, Aerospace Engineer, • Fax: 202–493–2251.
effective date of this AD, whichever occurs ECO Branch, FAA, 1200 District Avenue, • Mail: U.S. Department of
later. Burlington, MA 01803; phone: 781–238– Transportation, Docket Operations,
(ii) Evaluate the inspection results and 7088; fax: 781–238–7199; email: M–30, West Building Ground Floor,
perform re-inspections as necessary in kevin.m.clark@faa.gov. Room W12–140, 1200 New Jersey
accordance with Accomplishment (2) For service information identified in Avenue SE, Washington, DC 20590.
Instructions, ‘‘For Engines Installed on the this AD, contact Pratt & Whitney, 400 Main • Hand Delivery: Deliver to Mail
Aircraft,’’ paragraph 5, or the St., East Hartford, CT, 06118; phone: 860–
Accomplishment Instructions, ‘‘For Engines
address above between 9 a.m. and 5
565–0140; fax: 860–565–5442; email:
Removed from the Aircraft,’’ paragraph 4, of p.m., Monday through Friday, except
help24@pw.utc.com; internet: http://
PW ASB No. PW2000 A72–765, Revision No. fleetcare.pw.utc.com. You may view this Federal holidays.
4, dated January 25, 2018, as applicable. If referenced service information at the FAA, For service information identified in
given a cycle range, perform the subsequent Engine & Propeller Standards Branch, 1200 this NPRM, contact Pratt & Whitney
inspections before exceeding the maximum District Avenue, Burlington, MA 01803. For Division, 400 Main St., East Hartford,
number of cycles. information on the availability of this CT 06118; phone: 800–565–0140; fax:
(iii) Inspect the diffuser case M-flange material at the FAA, call 781–238–7759. 860–565–5442. You may view this
using, as applicable, either the
Issued in Burlington, Massachusetts, on service information at the FAA, Engine
Accomplishment Instructions, ‘‘For Engines
Installed on the Aircraft,’’ paragraphs 3.I. September 28, 2018. and Propeller Standards Branch, 1200
through 3.J., or the Accomplishment Robert J. Ganley, District Avenue, Burlington, MA 01803.
Instructions, ‘‘For Engines Removed from the Manager, Engine and Propeller Standards For information on the availability of
Aircraft,’’ paragraphs 3.D. through 3.E., of Branch, Aircraft Certification Service. this material at the FAA, call 781–238–
PW ASB No. PW2000 A72–765, Revision No. 7759.
[FR Doc. 2018–21693 Filed 10–9–18; 8:45 am]
4, dated January 25, 2018.
BILLING CODE 4910–13–P Examining the AD Docket
(h) Definition
You may examine the AD docket on
For the purpose of this AD, a ‘‘piece-part
opportunity’’ is defined as when the part is DEPARTMENT OF TRANSPORTATION the internet at http://
completely disassembled. www.regulations.gov by searching for
Federal Aviation Administration and locating Docket No. FAA–2018–
(i) Credit for Previous Actions 0826; or in person at Docket Operations
(1) You may take credit for the diffuser 14 CFR Part 39 between 9 a.m. and 5 p.m., Monday
case and HPT case inspections required by through Friday, except Federal holidays.
paragraphs (g)(1) and (3) of this AD if you [Docket No. FAA–2018–0826; Product The AD docket contains this NPRM, the
performed: Identifier 2018–NE–27–AD]
(i) an ECI of the diffuser case and the HPT
regulatory evaluation, any comments
case M-flange using the Accomplishment RIN 2120–AA64 received, and other information. The
Instructions of PW SB No. PW2000 72–763, street address for Docket Operations
Original Issue, dated March 22, 2013, or Airworthiness Directives; Pratt & (phone: 800–647–5527) is listed above.
(ii) a high sensitivity FPI of the diffuser Whitney Division (PW) Turbofan Comments will be available in the AD
case and the HPT case at a piece-part Engines docket shortly after receipt.
opportunity after January 1, 2010. FOR FURTHER INFORMATION CONTACT: Jo-
(2) You may take credit for only the AGENCY: Federal Aviation
diffuser case inspections required by Administration (FAA), DOT. Ann Theriault, Aerospace Engineer,
paragraphs (g)(1) and (3) of this AD if you ACTION: Notice of proposed rulemaking ECO Branch, FAA, 1200 District
performed an ECI of the diffuser case M- (NPRM). Avenue, Burlington, MA 01803; phone:
flange using the Accomplishment 781–238–7105; fax: 781–238–7199;
Instructions of PW ASB No. PW2000 A72– SUMMARY: We propose to adopt a new email: jo-ann.theriault@faa.gov.
765, Revision No. 3, dated December 19, airworthiness directive (AD) for certain SUPPLEMENTARY INFORMATION:
2017, or an earlier version. Pratt & Whitney Division (PW) PW4074,
PW4074D, PW4077, PW4077D, Comments Invited
(j) Alternative Methods of Compliance
(AMOCs) PW4084D, PW4090, and PW4090–3 We invite you to send any written
(1) The Manager, ECO Branch, FAA, has turbofan engines. This proposed AD was relevant data, views, or arguments about
the authority to approve AMOCs for this AD, prompted by an in-flight failure of a 1st this proposal. Send your comments to
if requested using the procedures found in 14 stage low-pressure compressor (LPC) an address listed under the ADDRESSES
daltland on DSKBBV9HB2PROD with PROPOSALS
CFR 39.19. In accordance with 14 CFR 39.19, blade. This proposed AD would require section. Include ‘‘Docket No. FAA–
send your request to your principal inspector initial and repetitive thermal acoustic 2018–0826; Product Identifier 2018–
or local Flight Standards District Office, as imaging (TAI) inspections for cracks in NE–27–AD’’ at the beginning of your
appropriate. If sending information directly
to the manager of the certification office,
certain 1st stage LPC blades and comments. We specifically invite
send it to the attention of the person removal of those blades that fail comments on the overall regulatory,
identified in paragraph (k)(1) of this AD. You inspection. We are proposing this AD to economic, environmental, and energy
may email your request to: ANE-AD- address the unsafe condition on these aspects of this NPRM. We will consider
AMOC@faa.gov. products. all comments received by the closing
VerDate Sep<11>2014 16:48 Oct 09, 2018 Jkt 247001 PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 E:\FR\FM\10OCP1.SGM 10OCP1](https://thefederalregister.org/doc/83_FR_51056/page/3.svg)
Document Created: 2018-10-10 17:36:51
Document Modified: 2018-10-10 17:36:51
| 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 November 26, 2018. | |
| Contact | Kevin M. Clark, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7088; fax: 781-238-7199; email: [email protected] | |
| FR Citation | 83 FR 50860 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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