13108 Federal Register / Vol. 84, No. 65 / Thursday, April 4, 2019 / Rules and Regulations 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2018–0924; Product 

Identifier 2018–NE–34–AD; Amendment 

39–19600; AD 2019–06–02] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney Division Turbofan Engines 

Editorial Note: Rule document 2019– 

05708 was originally published on pages 

11211 through 11214 in the issue of Tuesday, 

March 26, 2019. In that publication on page 

11213 in paragraph (c) Applicability, the ‘‘a’’ 

and ‘‘-3’’ were inadvertently run together. 

The corrected document is republished in its 

entirety. 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Pratt & Whitney Division (PW) PW4158 

turbofan engines. This AD was 

prompted by several reports of high 

cycle fatigue (HCF) cracks found in the 

fuel nozzle supply manifold. This AD 

requires replacement of the affected fuel 

nozzles and fuel nozzle manifold supply 

assemblies with parts eligible for 

installation. This AD also requires 

installation of new brackets and clamps 

on the fuel nozzle supply manifold 

assemblies. We are issuing this AD to 

address the unsafe condition on these 

products. 

DATES: This AD is effective April 30, 

2019. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of April 30, 2019. 

ADDRESSES: For service information 

identified in this final rule, contact Pratt 

& Whitney, 400 Main Street, East 

Hartford, CT 06108; phone: 860–565– 

8770; fax: 860–565–4503. You may view 

this service information at the FAA, 

Engine and Propeller Standards Branch, 

1200 District Avenue, Burlington, MA 

01803. For information on the 

availability of this material at the FAA, 

call 781–238–7759. It is also available 

on the internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2018– 

0924. 

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– 

0924; 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 address for Docket 

Operations (phone: 800–647–5527) is 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue SE, 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Scott Hopper, Aerospace Engineer, ECO 

Branch, FAA, 1200 District Avenue, 

Burlington, MA 01803; phone: 781– 

238–7154; fax: 781–238–7199; email: 

scott.hopper@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain PW PW4158 turbofan 

engines. The NPRM published in the 

Federal Register on November 19, 2018 

(83 FR 58199). The NPRM was 

prompted by several reports of HCF 

cracks found in the fuel nozzle supply 

manifold. The NPRM proposed to 

require replacement of the affected fuel 

nozzles and fuel nozzle manifold supply 

assemblies with parts eligible for 

installation. The NPRM also proposed to 

require installation of new brackets and 

clamps on the fuel nozzle supply 

manifold assemblies. We are issuing this 

AD to address the unsafe condition on 

these products. 

Comments 

We gave the public the opportunity to 

participate in developing this final rule. 

The following presents the comments 

received on the NPRM and the FAA’s 

response to each comment. 

Request To Use Overhauled Fuel 

Manifolds 

United Parcel Service Co. (UPS) and 

Pratt & Whitney requested that the AD 

clarify that overhauled fuel manifolds 

that have had new tube details installed 

meet the intent of installing new fuel 

manifolds called for in Pratt & Whitney 

Service Bulletin (SB) PW4ENG 73–224, 

dated November 8, 2017. UPS and Pratt 

& Whitney noted that the equivalent 

Pratt & Whitney SB PW4G–100–73–48, 

Revision No. 1, dated April 24, 2018, for 

PW PW4000–100 engines, allows use of 

repaired manifolds. 

We disagree because Pratt & Whitney 

SB PW4ENG 73–224, dated November 8, 

2017, does not allow the installation of 

overhauled fuel manifolds with new 

tube details. We recommend that 

operators who would like to use 

overhauled manifolds submit an AMOC 

request. 

Request To Clarify Applicability 

SR Technics Switzerland Ltd. 

requested we clarify the identification of 

potentially affected engines since part 

number (P/N) 51J228 is a sales order 

option and does not appear in PW 

service bulletins. UPS recommended 

that we revise the applicability to refer 

to ‘‘All Engines that incorporate Talon 

II Burner Sales Order Option P/N 

51J228.’’ The commenters indicated that 

P/N 51J228 is not listed in the 

applicable PW parts catalogue or in a 

service bulletin. 

We partially agree. We agree to clarify 

the applicability of this AD. We disagree 

with referring to ‘‘engines that 

incorporate Talon II Burner Sales Order 

Option P/N 51J228’’ as this reference is 

not sufficiently clear to operators. We 

revised the Applicability of this AD to 

refer to the specifically affected engine 

serial numbers. 

Request for Previous Credit 

UPS requested that the rule include a 

‘‘Credits for Previous Actions’’ section 

in this AD stating that affected engines 

that have fully incorporated prior 

revisions of both Pratt & Whitney SB 

PW4ENG 73–223, dated February 5, 

2018, and Pratt & Whitney SB PW4ENG 

73–224, dated November 8, 2017, may 

take credit for the required actions. UPS 

reasoned that PW is considering 

publishing a revision to Pratt & Whitney 

SB PW4ENG 73–224 that will allow use 

of overhauled fuel supply manifolds. 

We disagree. We cannot give credit for 

previous action based on service 

bulletins that have not been published. 

We did not change this AD. 

Request To Revise Compliance 

UPS commented that paragraph (g)(1) 

in the NPRM only referred to P/N 

51J344. UPS noted that there are other 

pre-SB 73–223 part numbers, such as P/ 

N 51J235, that may be found installed in 

Talon II engines. UPS suggested that we 

revise the compliance paragraph (g)(1) 

in this AD to be similar to paragraph 

(g)(2) of this AD—for example, ‘‘Replace 

the 24 fuel nozzles with part number 

51J397 per Pratt & Whitney SB PW4ENG 

73–223.’’ 

We agree. Fuel nozzle designs other 

than P/N 51J397 are also susceptible to 

braze joint cracking. We revised 

paragraph (g)(1) of this AD based on the 

change suggested by the commenter. 


jbell on DSK30RV082PROD with RULES
Federal Register / Vol. 84, No. 65 / Thursday, April 4, 2019 / Rules and Regulations 13109 

Support for the AD 

The Air Line Pilots Association 

International expressed support for the 

AD as written. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting this 

final rule with the changes described 

previously and minor editorial changes. 

We have determined that these minor 

changes: 

• Are consistent with the intent that 

was proposed in the NPRM for 

addressing the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM. 

We also determined that these 

changes will not increase the economic 

burden on any operator or increase the 

scope of this final rule. 

Related Service Information Under 1 

CFR Part 51 

We reviewed Pratt & Whitney SB 

PW4ENG 73–224, dated November 8, 

2017. The SB describes procedures for 

replacing the fuel nozzle supply 

manifold assemblies with parts eligible 

for installation, and installing new 

brackets and clamps on the fuel nozzle 

supply manifolds. 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 Pratt & Whitney SB 

PW4ENG 73–223, dated February 5, 

2018. This SB describes procedures for 

replacing the fuel nozzles and fuel 

nozzle support assemblies with parts 

eligible for installation. 

Costs of Compliance 

We estimate that this AD affects 114 

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 (24) fuel nozzles ....... 48 work-hours × $85 per hour = $4,080 ..... $423,471.12 $427,551.12 $48,740,827.68 

Replace fuel supply manifold tubes and install new clamps and brackets.16 work-hours × $85 per hour = $1,360 ..... 77,158.97 78,518.97 8,951,162.58 

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 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 adding 

the following new airworthiness 

directive (AD): 

2019–06–02 Pratt & Whitney Division: 

Amendment 39–19600; Docket No. 

FAA–2018–0924; Product Identifier 

2018–NE–34–AD. 

(a) Effective Date 

This AD is effective April 30, 2019. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Pratt & Whitney 

Division PW4158 turbofan engines 

designated by a -3 on the Engine Data Plate 

and with the following engine serial 

numbers: 728534 to 728555; 728557 to 

728585; 728587 to 728591; 728593; 728598; 

729808 to 729824; or 729826 to 729864. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7310, Engine Fuel Distribution. 

(e) Unsafe Condition 

This AD was prompted by several reports 

of high cycle fatigue (HCF) cracks found in 

the fuel nozzle supply manifold tube at the 

braze joint interface. We are issuing this AD 

to prevent failure of the fuel nozzles. The 

unsafe condition, if not addressed, could 


jbell on DSK30RV082PROD with RULES
13110 Federal Register / Vol. 84, No. 65 / Thursday, April 4, 2019 / Rules and Regulations 

result in engine fire, 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 

No later than the next engine shop visit 

after the effective date of this AD, do the 

following: 

(1) Remove any of the 24 fuel nozzles, part 

number (P/N) 51J235 or 51J344, and replace 

with P/N 51J397. 

(2) Replace the fuel nozzle manifold 

supply assemblies and install new brackets 

and clamps on the fuel supply manifolds in 

accordance with the ‘‘For Engines Installed 

on Aircraft’’ or ‘‘For Engines Not Installed on 

Aircraft’’ sections, as applicable, of the 

Accomplishment Instructions in Pratt & 

Whitney Service Bulletin (SB) PW4ENG 73– 

224, dated November 8, 2017. 

(h) Definitions 

For the purpose of this AD, an ‘‘engine 

shop visit’’ is the induction of an engine into 

the shop for maintenance involving the 

separation of pairs of major mating engine 

case flanges, except for the following 

situations, which do not constitute an engine 

shop visit: 

(1) Separation of engine flanges solely for 

the purposes of transportation of the engine 

without subsequent maintenance. 

(2) Separation of engine flanges solely for 

the purposes of replacing the fan or 

propulsor without subsequent maintenance. 

(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 certification office, 

send it to the attention of the person 

identified in paragraph (j) of this AD. 

Information may be emailed to: ANE-ADAMOC@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. 

(j) Related Information 

For more information about this AD, 

contact Scott Hopper, Aerospace Engineer, 

ECO Branch, FAA, 1200 District Avenue, 

Burlington, MA 01803; phone: 781–238– 

7154; fax: 781–238–7199; email: 

scott.hopper@faa.gov. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Pratt & Whitney Service Bulletin 

PW4ENG 73–224, dated November 8, 2017. 

(ii) [Reserved] 

(3) For Pratt & Whitney service information 

identified in this AD, contact Pratt & 

Whitney, 400 Main Street, East Hartford, CT 

06108; phone: 860–565–8770; fax: 860–565– 

4503. 

(4) You may view this service information 

at the FAA, Engine and Propeller Standards 

Branch, 1200 District Avenue, Burlington, 

MA 01803. For information on the 

availability of this material at the FAA, call 

781–238–7759. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Burlington, Massachusetts, on 

March 19, 2019. 

Karen M. Grant, 

Acting Manager, Engine and Propeller 

Standards Branch, Aircraft Certification 

Service. 

[FR Doc. R1–2019–05708 Filed 4–3–19; 8:45 am] 

BILLING CODE 1301–00–D 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2018–0704; Product 

Identifier 2018–NM–066–AD; Amendment 

39–19601; AD 2019–06–03] 

RIN 2120–AA64 

Airworthiness Directives; Airbus SAS 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all 

Airbus SAS Model A330–200 Freighter, 

–200, and –300 series airplanes; and 

Airbus SAS Model A340–200, –300, 

–500, and –600 series airplanes. This 

AD was prompted by reports of 

depressurization of hydraulic reservoirs 

caused by air leakage from the pressure 

relief valve (PRV) of the hydraulic 

reservoir (HR) due to the extrusion of 

the O-ring seal from certain HR PRVs. 

This AD requires replacing affected 

PRVs and re-identifying affected HRs. 

We are issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective May 9, 2019. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of May 9, 2019. 

ADDRESSES: For Airbus service 

information identified in this final rule, 

contact Airbus SAS, Airworthiness 

Office—EAL, Rond Point Emile 

Dewoitine No: 2, 31700 Blagnac Cedex, 

France; telephone: +33 5 61 93 36 96; 

fax: +33 5 61 93 45 80; email: 

airworthiness.A330-A340@airbus.com; 

internet http://www.airbus.com. For 

Safran service information identified in 

this final rule, contact Safran Aero 

Boosters, 121 Route de Liers, 4041 

Milmort (Herstal), Belgium; telephone: 

+32 4 278 8111; fax: +32 4 278 52 07; 

internet https://www.safran-aeroboosters.com, or https://www.safrangroup.com/company/safran-aeroboosters. You may view this service 

information at the FAA, Transport 

Standards Branch, 2200 South 216th St., 

Des Moines, WA. 

For information on the availability of 

this material at the FAA, call 206–231– 

3195. It is also available on the internet 

at http://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2018–0704. 

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– 

0704; 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 address for Docket 

Operations (phone: 800–647–5527) is 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue SE, 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Vladimir Ulyanov, Aerospace Engineer, 

International Section, Transport 

Standards Branch, FAA, 2200 South 

216th St., Des Moines, WA 98198; 

telephone and fax: 206–231–3229. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to all Airbus SAS Model A330– 

200 Freighter, –200, and –300 series 

airplanes; and Airbus SAS Model A340– 

200, –300, –500, and –600 series 

airplanes. The NPRM published in the 

Federal Register on August 3, 2018 (83 

FR 38088). The NPRM was prompted by 

reports of depressurization of HRs 

caused by air leakage from the PRV of 

the HR due to the extrusion of the OVerDate Sep<11>2014 19:50 Apr 03, 2019 Jkt 247001 PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 E:\FR\FM\04APR1.SGM 04APR1

jbell on DSK30RV082PROD with RULES