Federal Register / Vol. 74, No. 69 / Monday, April 13, 2009 / Proposed Rules 16803 

The Petition 

The NRC received a petition for 

rulemaking (ADAMS Accession No. 

ML082530041) from Bob Christie (the 

petitioner) dated May 2, 2002, which 

was docketed as PRM–50–77. The 

petitioner requested that the NRC 

amend its regulations to eliminate the 

requirement for assuming a LOOP 

coincident with postulated accidents. 

The petitioner believes this requirement 

is detrimental to safety because it 

requires fast start times for emergency 

diesel generators (EDG) and because it 

requires operator training for unrealistic 

events. The petitioner proposed specific 

changes to several of the General Design 

Criteria at 10 CFR part 50, appendix A, 

which, if implemented, would 

accomplish the petition’s request. These 

General Design Criteria include: 

Criterion 17—Electric power systems; 

Criterion 35—Emergency core cooling; 

Criterion 38—Containment heat 

removal; Criterion 41—Containment 

atmosphere cleanup; and Criterion 44— 

Cooling water. 

On June 13, 2002, (67 FR 40622), the 

NRC published a notice of receipt for 

this petition in the Federal Register and 

requested public comment. The public 

comment period ended on August 27, 

2002. One comment letter was received; 

it was in support of the petition. The 

comment letter can be found by 

following the instructions given in the 

ADDRESSES section of this document. 

Resolution of Petition 

The NRC will consider the issues 

raised in PRM–50–77, along with the 

comment submitted on PRM–50–77, in 

the ongoing rulemaking activity directed 

at decoupling an assumed LOOP from a 

coincident LOCA as currently required 

by 10 CFR part 50, appendix A, 

Criterion 35. The NRC believes that the 

underlying technical considerations 

regarding a postulated accident 

coincident with a LOOP are sufficiently 

related to this ongoing rulemaking 

activity; therefore, the issues raised in 

PRM–50–77 are being considered in the 

rulemaking activity. 

The NRC is continuing work to 

develop the technical basis for this 

rulemaking. Although the NRC will 

consider the issues raised in the 

petition, the petitioner’s concerns may 

not be addressed exactly as the 

petitioner has requested. After the 

conclusion of the NRC’s development of 

the technical basis for the rule, the NRC 

will determine whether to adopt the 

petitioner’s requested rulemaking 

changes. During the rulemaking process, 

the NRC will solicit comments from the 

public and will consider all comments 

before issuing a final rule. 

If the ongoing work to establish the 

technical basis for this rulemaking does 

not support the issuance of a proposed 

rule, the NRC will issue a document in 

the Federal Register that addresses why 

the petitioner’s requested rulemaking 

changes were not adopted by the NRC. 

With this action, the NRC closes the 

docket for PRM–50–77. 

Dated at Rockville, Maryland, this 26th day 

of March 2009. 

For the Nuclear Regulatory Commission. 

Bruce S. Mallett, 

Acting Executive Director for Operations. 

[FR Doc. E9–8319 Filed 4–10–09; 8:45 am] 

BILLING CODE 7590–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–0096; Directorate 

Identifier 2007–NE–39–AD] 

RIN 2120–AA64 

Airworthiness Directives; Honeywell 

International Inc. ALF502 Series and 

LF507 Series Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede an existing airworthiness 

directive (AD) for Honeywell 

International Inc. ALF502 series and 

LF507 series turbofan engines with 

certain fuel manifold assemblies 

installed. That AD currently requires 

initial and repetitive on-wing eddy 

current or in-shop fluorescent penetrant 

inspections of certain part number (P/N) 

fuel manifold assemblies for cracks, and 

replacement of cracked fuel manifolds 

with serviceable manifolds. This 

proposed AD would continue to require 

inspecting those fuel manifolds for 

cracks, would also add leak checks of 

certain additional P/N fuel manifolds, 

and would specify replacement of the 

affected manifolds as an optional 

terminating action in lieu of the 

repetitive inspections. This proposed 

AD results from reports of fire in the 

engine nacelle. We are proposing this 

AD to detect cracks in certain fuel 

manifolds and fuel leaks from other fuel 

manifolds, which could result in a fire 

in the engine nacelle and a hazard to the 

aircraft. 

DATES: We must receive any comments 

on this proposed AD by June 12, 2009. 

ADDRESSES: Use one of the following 

addresses to comment on this proposed 

AD. 

• Government-wide rulemaking Web 

site: Go to http://www.regulations.gov 

and follow the instructions for sending 

your comments electronically. 

• Mail: Docket Management Facility, 

U.S. Department of Transportation, 

West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue, SE., 

Washington, DC 20590–0001. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

• Fax: (202) 493–2251. 

You can get the service information 

identified in this proposed AD from 

Honeywell International, Inc., 111 S 

34th St., Phoenix, AZ 85034–2802, 

U.S.A.; telephone (800) 601–3099. 

FOR FURTHER INFORMATION CONTACT: 

Robert Baitoo, Aerospace Engineer, Los 

Angeles Aircraft Certification Office, 

FAA, Transport Airplane Directorate, 

3960 Paramount Blvd., Lakewood, CA 

90712–4137; e-mail: 

robert.baitoo@faa.gov; telephone (562) 

627–5245; fax (562) 627–5210. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send us any written 

relevant data, views, or arguments 

regarding this proposal. Send your 

comments to an address listed under 

ADDRESSES. Include ‘‘Docket No. FAA– 

2007–0096; Directorate Identifier 2007– 

NE–39–AD’’ in the subject line of your 

comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of the proposed AD. We will 

consider all comments received by the 

closing date and may amend the 

proposed AD in light 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 with FAA 

personnel concerning this proposed AD. 

Using the search function of the Web 

site, anyone can find and read the 

comments in any of our dockets, 

including, if provided, the name of the 

individual who sent the comment (or 

signed the comment on behalf of an 

association, business, labor union, etc.). 

You may review the DOT’s complete 

Privacy Act Statement in the Federal 

Register published on April 11, 2000 

(65 FR 19477–78). 

16804 Federal Register / Vol. 74, No. 69 / Monday, April 13, 2009 / Proposed Rules 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; 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 proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Operations 

office (telephone (800) 647–5527) is the 

same as the Mail address provided in 

the ADDRESSES section. Comments will 

be available in the AD docket shortly 

after receipt. 

Discussion 

The FAA proposes to amend 14 CFR 

part 39 by superseding AD 97–11–05, 

Amendment 39–10034 (62 FR 28994, 

May 29, 1997). That AD requires initial 

and repetitive on-wing eddy current 

inspection (ECI) or in-shop fluorescent 

penetrant inspection (FPI) of fuel 

manifold assemblies for cracks, and 

replacement of cracked fuel manifolds 

with serviceable manifolds. In addition, 

that action proposed an optional 

terminating action to the repetitive 

inspections by replacing the fuel 

manifold assembly with an assembly of 

a new, improved design, P/N 2–163– 

620–37 or 2–163–620–38. That AD 

resulted from reports of cracking of the 

fuel manifold assembly at the No. 5 

scallop location. That condition, if not 

corrected, could result in fuel leaking 

from the manifold and a fire in the 

engine nacelle. 

Actions Since AD 97–11–05 Was Issued 

Since we issued that AD, we have 

received reports of about 36 events of 

fuel leaking at the fuel nozzles on fuel 

manifold assemblies, P/Ns 2–163–620– 

37 and 2–163–620–38, due to loosening 

of the fuel nozzles. Failure to detect and 

remove a leaking manifold assembly is 

likely to result in a fire in the engine 

nacelle and create a hazard to the 

aircraft. 

FAA’s Determination and Requirements 

of the Proposed AD 

We have evaluated all pertinent 

information and identified an unsafe 

condition that is likely to exist or 

develop on other products of this same 

type design. We are proposing this AD, 

which would require: 

• For fuel manifold assemblies, P/Ns 

2–163–620–37 or 2–163–620–38, with 

1,800 or more cycles-since-new or 

cycles-since-overhaul, inspecting for 

leaks per paragraph (g) of this AD, 

within 300 cycles-in-service after the 

effective date of this AD, and 

• Repeating the inspection within 600 

cycles-since-last inspection, and 

• Replacing each leaking fuel 

manifold assembly with a serviceable 

manifold. 

Costs of Compliance 

We estimate that this proposed AD 

would affect 156 engines installed on 

airplanes of U.S. registry. We also 

estimate that it would take about 7 

work-hours per engine to perform the 

proposed actions, and that the average 

labor rate is $80 per work-hour. 

Required parts would cost about 

$50,000 per engine. Based on these 

figures, we estimate the total cost of the 

proposed AD to U.S. operators to be 

$7,887,360. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

Section 106, describes the authority of 

the FAA Administrator. Subtitle VII, 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in Subtitle VII, 

Part A, Subpart III, Section 44701, 

‘‘General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We 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 AD: 

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); and 

3. Would not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD. You may get a copy 

of this summary at the address listed 

under ADDRESSES. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Safety. 

The Proposed Amendment 

Under the authority delegated to me 

by the Administrator, the Federal 

Aviation Administration proposes to 

amend 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 Amendment 39–10034 (62 FR 

28994, May 29, 1997) and by adding a 

new airworthiness directive to read as 

follows: 

Honeywell International Inc. (Formerly 

AlliedSignal and Textron-Lycoming): 

Docket No. FAA–2007–0096; Directorate 

Identifier 2007–NE–39–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

(FAA) must receive comments on this 

airworthiness directive (AD) action by June 

12, 2009. 

Affected ADs 

(b) Supersedes AD 97–11–05, Amendment 

39–10034. 

Applicability 

(c) This AD applies to Honeywell 

International Inc. ALF502L and ALF502R 

series, and LF507–1F and LF507–1H turbofan 

engines with fuel manifolds, part numbers 

(P/Ns) 2–163–620–9, 2–163–620–10, 2–163– 

620–17, 2–163–620–18, 2–163–620–23, 2– 

163–620–24, 2–163–620–25, 2–163–620–26, 

2–163–620–27, 2–163–620–28, 2–163–620– 

33, 2–163–620–34, 2–163–620–35, 2–163– 

620–36, 2–163–620–37, or 2–163–620–38 

installed. These engines are installed on, but 

not limited to, Bombardier CL–600–1A11 and 

BAE Systems 146–100/A, –200/A, and –300/ 

A, and AVRO 146–RJ70A, –RJ85A, and 

–RJ100A airplanes. 

Unsafe Condition 

(d) This AD results from reports of fire in 

the engine nacelle. We are issuing this AD to 

detect cracks in certain fuel manifolds and 

fuel leaks from other fuel manifolds, which 

could result in a fire in the engine nacelle 

and a hazard to the aircraft. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified unless the 

actions have already been done. 

Federal Register / Vol. 74, No. 69 / Monday, April 13, 2009 / Proposed Rules 16805 

Initial Inspection for Cracks in Fuel 

Manifold Assemblies That Have a P/N Listed 

in Paragraph (c) of This AD, Except P/Ns 2– 

163–620–37 or 2–163–620–38 

(f) Using the following compliance times, 

perform initial and repetitive on-wing eddy 

current inspections (ECI) or in-shop 

fluorescent penetrant inspections (FPI) of 

fuel manifold assemblies having a P/N listed 

in the paragraph (c) of this AD, except P/Ns 

2–163–620–37 or 2–163–620–38. Use 

paragraphs 2.A.(1) through 2.A.(3)(d) of the 

accomplishment instructions of Honeywell 

International Inc. Service Bulletin (SB) ALF/ 

LF 73–1002, Revision 1, dated March 24, 

1997 or original issue dated December 22, 

1995, to perform the inspections. 

(1) For ALF502L series engines: 

(i) For fuel manifold assemblies with 3,250 

or more cycles since new (CSN) or unknown 

CSN on July 28, 1997 (the effective date of 

AD 97–11–05), inspect at the next hot section 

inspection (HSI), or 2,000 cycles-in-service 

(CIS) after July 28, 1997, whichever occurs 

first. 

(ii) For fuel manifold assemblies with less 

than 3,250 CSN on July 28, 1997, inspect at 

the next HSI or before accumulating 5,250 

CSN, whichever occurs first. 

(iii) Thereafter, inspect at HSI intervals not 

to exceed 2,000 cycles-since-last inspection 

(CSLI). 

(iv) If a fuel manifold assembly is found 

cracked, prior to further flight, replace the 

fuel manifold assembly with an FAA 

approved serviceable assembly. 

(2) For ALF502R and LF507 series engines: 

(i) For fuel manifold assemblies with 3,250 

or more CSN, or unknown CSN, on July 28, 

1997, inspect within 1,250 CIS after July 28, 

1997. 

(ii) For fuel manifold assemblies with less 

than 3,250 CSN on July 28, 1997, inspect 

prior to accumulating 4,500 CSN. 

(iii) Thereafter, inspect at intervals not to 

exceed 1,250 CSLI. 

(iv) If a fuel manifold assembly is found 

cracked, before further flight replace the fuel 

manifold assembly with an FAA approved 

serviceable assembly. 

Initial Inspection for Fuel Leaks, Fuel 

Manifold Assemblies, P/Ns 2–163–620–37 or 

2–163–620–38 

(g) For fuel manifold assemblies, P/Ns 2– 

163–620–37 or 2–163–620–38, with 1,800 or 

more CSN or cycles-since-overhaul (CSO), 

inspect for leaks within 300 CIS after the 

effective date of this AD as follows: 

(1) Start engine and let stabilize at ground 

idle. 

(2) With the engine operating, look for fuel 

leaking from the fuel manifold assembly to 

the fire shield interface area (see Figure 1). 

No leaks allowed. 

(3) If you find any leaks, shut down the 

engine and replace the fuel manifold 

assembly with an FAA approved serviceable 

assembly. 

(4) Shut down engine. 

(5) Look for fuel leaking from the fuel 

manifold assembly to the fire shield interface 

area (see Figure 1.) No leaks allowed. 

(6) If you find any leaks, replace the fuel 

manifold assembly with an FAA approved 

serviceable assembly. 

16806 Federal Register / Vol. 74, No. 69 / Monday, April 13, 2009 / Proposed Rules 

Repetitive Inspection for Fuel Leaks, Fuel 

Manifold Assemblies P/Ns 2–163–620–37 and 

2–163–620–38 

(h) Thereafter, within 600 CSLI, inspect 

fuel manifold assemblies, P/Ns 2–163–620– 

37 and 2–163–620–38, for leaks as specified 

in paragraphs (g)(1) through (g)(6) of this AD. 

Optional Terminating Action 

(i) Replacing a fuel manifold assembly that 

has a P/N specified in paragraph (c) of this 

AD, with a fuel manifold assembly, P/N 2– 

163–620–39, 2–163–620–40, 2–163–620–41, 

or 2–163–620–42, or an FAA-approved 

equivalent part, terminates the repetitive 

inspection requirement specified in 

paragraphs (f)(1)(iii), (f)(2)(iii), (g), and (h) of 

this AD. 

Alternative Methods of Compliance 

(j) The Manager, Los Angeles Certification 

Office, has the authority to approve 

alternative methods of compliance for this 

AD if requested using the procedures found 

in 14 CFR 39.19. 

Related Information 

(k) Honeywell International Inc. Alert 

Service Bulletin ALF/LF–A72–1084, 

Revision 2, dated October 10, 2007, and SB 

ALF/LF 73–1002, Revision 1, dated March 

24, 1997, and SB ALF/LF 72–1094, dated 

April 30, 2004, contains the information 

necessary to inspect and replace any leaking 

fuel manifolds. 

(l) Contact Robert Baitoo, Aerospace 

Engineer, Los Angeles Aircraft Certification 

Office, FAA, Transport Airplane Directorate, 

3960 Paramount Blvd., Lakewood, CA 

90712–4137; e-mail: robert.baitoo@faa.gov; 

telephone: (562) 627–5245; fax: (562) 627– 

5210, for more information about this AD. 

Issued in Burlington, Massachusetts, on 

April 6, 2009. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. E9–8308 Filed 4–10–09; 8:45 am] 

BILLING CODE 4910–13–P 


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