This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents.

Rules and Regulations Federal Register

13105 

Vol. 84, No. 65 

Thursday, April 4, 2019 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2018–0735; Product 

Identifier 2018–NE–26–AD; Amendment 

39–19599; AD 2019–06–01] 

RIN 2120–AA64 

Airworthiness Directives; International 

Aero Engines Turbofan Engines 

Editorial Note: Rule document 2019–05582 

was originally published on pages 11214 

through 11216 in the issue of Tuesday, 

March 26, 2019. In that publication the AD 

number is incorrect on page 11215. The 

corrected document is republished in its 

entirety. 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are superseding 

Airworthiness Directive (AD) 2018–24– 

01 for certain International Aero 

Engines (IAE) PW1133G–JM, 

PW1133GA–JM, PW1130G–JM, 

PW1127G–JM, PW1127GA–JM, 

PW1127G1–JM, PW1124G–JM, 

PW1124G1–JM, and PW1122G–JM 

turbofan engines. AD 2018–24–01 

required removing certain low-pressure 

turbine (LPT) 1st- and 3rd-stage disks 

from service and replacing with a part 

eligible for installation. This AD retains 

the same requirements as AD 2018–24– 

01. This AD was prompted by the 

discovery of incorrect serial numbers in 

the identification of LPT disks in AD 

2018–24–01. We are issuing this AD to 

address the unsafe condition on these 

products. 

DATES: This AD is effective April 10, 

2019. 

We must receive any comments on 

this AD by May 10, 2019. 

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: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590, 

between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

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– 

0735; 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 final rule, 

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: kevin.m.clark@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued AD 2018–24–01, 

Amendment 39–19505 (84 FR 2715, 

February 8, 2019), (‘‘AD 2018–24–01’’), 

for all IAE PW1133G–JM, PW1133GA– 

JM, PW1130G–JM, PW1127G–JM, 

PW1127GA–JM, PW1127G1–JM, 

PW1124G–JM, PW1124G1–JM, and 

PW1122G–JM turbofan engines with 

certain LPT 1st- and 3rd-stage disks 

installed. AD 2018–24–01 required 

removing certain LPT 1st- and 3rd-stage 

disks from service and replacing with a 

part eligible for installation. AD 2018– 

24–01 resulted from by a report of 

manufacturing defects found on 

delivered LPT 1st- and 3rd-stage disks. 

We issued AD 2018–24–01 to prevent 

failure of the LPT 1st- or 3rd-stage disk. 

Actions Since AD 2018–24–01 Was 

Issued 

Since we issued AD 2018–24–01, we 

learned of incorrect and omitted serial 

numbers for LPT 1st-stage and 3rd-stage 

disks in AD 2018–24–01. Two serial 

numbers, LLDLAJ4594 and 

LLDLAJ4595, were identified 

incorrectly, respectively, as 

LLDLAJ4494 and LLDLAJ4495 in Figure 

1 to Paragraph (g) of AD 2018–24–01. In 

addition, one serial number, 

LLDLAJ6115, was included in the 

NPRM but inadvertently omitted from 

Figure 2 to Paragraph (g) of AD 2018– 

24–01. We are issuing this AD to 

address the unsafe condition on these 

products. 

FAA’s Determination 

We are issuing 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. 

AD Requirements 

This AD requires removing certain 

LPT 1st- and 3rd-stage disks from 

service and replacing with a part 

eligible for installation. 

FAA’s Justification and Determination 

of the Effective Date 

No domestic operators use this 

product. Therefore, we find good cause 

that notice and opportunity for prior 

public comment are impracticable. In 

addition, for the reason stated above, we 

find that good cause exists for making 

this amendment effective in less than 30 

days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not provide you with notice and 

an opportunity to provide your 

comments before it becomes effective. 

However, we invite you to send any 

written data, views, or arguments about 

this final rule. Send your comments to 

an address listed under the ADDRESSES

section. Include the docket number 

FAA–2018–0735 and product identifier 

2018–NE–26–AD at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this final rule. We will 

consider all comments received by the 


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13106 Federal Register / Vol. 84, No. 65 / Thursday, April 4, 2019 / Rules and Regulations 

closing date and may amend this final 

rule 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 final rule. 

Costs of Compliance 

We estimate that this AD affects 0 

engines installed on airplanes of U.S. 

registry. 

We estimate the following costs to 

comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Remove and replace LPT 1st- or 3rd-stage 

disk.

0 work-hours × $85 per hour = $0 ................. $210,000 $210,000 $0 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

Section 106, describes the authority of 

the FAA Administrator. Subtitle VII, 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in Subtitle VII, 

Part A, Subpart III, Section 44701, 

‘‘General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

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 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979), 

(3) Will not affect intrastate aviation 

in Alaska, and 

(4) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends part 39 of the Federal 

Aviation Regulations (14 CFR part 39) as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by 

removing Airworthiness Directive (AD) 

Amendment 39–19505 (84 FR 2715, 

February 8, 2019) and adding the 

following new AD: 

2019–06–01 International Aero Engines: 

Amendment 39–19599; Docket No. 

FAA–2018–0735; Product Identifier 

2018–NE–26–AD. 

(a) Effective Date 

This AD is effective April 10, 2019. 

(b) Affected ADs 

This AD replaces AD 2018–24–01, 

Amendment 39–19505 (84 FR 2715, February 

8, 2019). 

(c) Applicability 

This AD applies to International Aero 

Engines (IAE) PW1133G–JM, PW1133GA–JM, 

PW1130G–JM, PW1127G–JM, PW1127GA– 

JM, PW1127G1–JM, PW1124G–JM, 

PW1124G1–JM, and PW1122G–JM turbofan 

engines with a low-pressure turbine (LPT) 

3rd-stage disk with a serial number (S/N) 

listed in Figure 1 to paragraph (g) of this AD 

or an LPT 1st-stage disk with an S/N listed 

in Figure 2 to paragraph (g) of this AD, 

installed. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7250, Turbine Section. 

(e) Unsafe Condition 

This AD was prompted by a report of 

manufacturing defects found on delivered 

LPT 1st- and 3rd-stage disks. We are issuing 

this AD to prevent failure of the LPT 1st- or 

3rd-stage disk. The unsafe condition, if not 

addressed, could result in uncontained LPT 

1st- or 3rd-stage disk 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 

Remove from service the LPT 1st- and 3rdstage disk within 30 days after the effective 

date of this AD, or as identified in paragraphs 

(g)(1) or (2) of this AD, whichever occurs 

later, and replace with a part eligible for 

installation. 

(1) Remove the LPT 3rd-stage disk with an 

S/N listed in Figure 1 to paragraph (g) of this 

AD at the next piece-part exposure, not to 

exceed 4,800 cycles since new (CSN). 

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(2) Remove the LPT 1st-stage disk with an 

S/N listed in Figure 2 to paragraph (g) of this 

AD at the next piece-part exposure, not to 

exceed 2,240 CSN. 

(h) 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 (i) of this AD. You 

may email your request to: ANE-AD-AMOC@

faa.gov. 

(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. 

(i) Related Information 

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: 

kevin.m.clark@faa.gov. 

(j) Material Incorporated by Reference 

None. 

Issued in Burlington, Massachusetts, on 

March 19, 2019. 

Karen M. Grant, 

Acting Manager, Engine and Propeller 

Standards Branch, Aircraft Certification 

Service. 

[FR Doc. R1–2019–05582 Filed 4–3–19; 8:45 am] 

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