Federal Register / Vol. 69, No. 188 / Wednesday, September 29, 2004 / Proposed Rules 58107

(1) Within 90 days after the effective date 

of this AD, and thereafter at intervals not to 

exceed 180 days: Do the actions specified in 

paragraph (m) of this AD until the 

terminating action required by paragraph (q) 

of this AD has been accomplished. 

(2) Before the MLG outer cylinder is 3 

years old since new or since last overhaul, or 

within 90 days after the effective date of this 

AD, whichever is later: Do the actions as 

specified in paragraph (n) of this AD. 

(3) As of the effective date of this AD, the 

actions specified in paragraphs (o) and (p) of 

this AD must be complied with. 

Reporting Requirement 

(t) Although the service bulletins 

referenced in this AD specify to submit 

certain information to the manufacturer, this 

AD does not include such a requirement. 

Alternative Methods of Compliance 

(AMOCs) 

(u)(1) The Manager, Seattle Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested in accordance with the procedures 

found in 14 CFR 39.19. 

(2) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD, if it is approved by a 

Boeing Company Designated Engineering 

Representative who has been authorized by 

the Manager, Seattle ACO, to make those 

findings. For a repair method to be approved, 

the approval must specifically refer to this 

AD.

Issued in Renton, Washington, on 

September 20, 2004. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service.

[FR Doc. 04–21820 Filed 9–28–04; 8:45 am] 

BILLING CODE 4910–13–P

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2004–19202; Directorate 

Identifier 2004–NM–95–AD] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 757 Series Airplanes

AGENCY: Federal Aviation 

Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Boeing Model 757 series 

airplanes. This proposed AD would 

require identification of the part number 

for the cable assembly for the lower 

anti-collision light, and related 

investigative/corrective actions if 

necessary. This proposed AD is 

prompted by a report of damage caused 

by an electrical arc in a connector on the 

cable assembly for the lower anticollision light. We are proposing this 

AD to prevent an electrical arc in the 

cable assembly for the lower anticollision light, which could result in a 

fire in a flammable leakage zone of the 

airplane.

DATES: We must receive comments on 

this proposed AD by November 15, 

2004.

ADDRESSES: Use one of the following 

addresses to submit comments on this 

proposed AD. 

• DOT Docket Web Site: Go to http:

//dms.dot.gov and follow the 

instructions for sending your comments 

electronically. 

• 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, 400 

Seventh Street SW., Nassif Building, 

room PL–401, Washington, DC 20590. 

• By Fax: (202) 493–2251. 

• Hand Delivery: Room PL–401 on 

the plaza level of the Nassif Building, 

400 Seventh Street SW., Washington, 

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

through Friday, except Federal holidays. 

For service information identified in 

this proposed AD, contact Boeing 

Commercial Airplanes, P.O. Box 3707, 

Seattle, Washington 98124–2207. 

You can examine the contents of this 

AD docket on the Internet at http://

dms.dot.gov, or in person at the Docket 

Management Facility, U.S. Department 

of Transportation, 400 Seventh Street 

SW., room PL–401, on the plaza level of 

the Nassif Building, Washington, DC.

FOR FURTHER INFORMATION CONTACT:

Technical information: Marcia Smith, 

Aerospace Engineer, Cabin Safety and 

Environmental Systems Branch, ANM–

150S, FAA, Seattle Aircraft Certification 

Office, 1601 Lind Avenue, SW., Renton, 

Washington 98055–4056; telephone 

(425) 917–6484; fax (425) 917–6590. 

Plain language information: Marcia 

Walters, marcia.walters@faa.gov.

SUPPLEMENTARY INFORMATION: 

Docket Management System (DMS) 

The FAA has implemented new 

procedures for maintaining AD dockets 

electronically. As of May 17, 2004, new 

AD actions are posted on DMS and 

assigned a docket number. We track 

each action and assign a corresponding 

directorate identifier. The DMS AD 

docket number is in the form ‘‘Docket 

No. FAA–2004–99999.’’ The Transport 

Airplane Directorate identifier is in the 

form ‘‘Directorate Identifier 2004–NM–

999–AD.’’ Each DMS AD docket also 

lists the directorate identifier (‘‘Old 

Docket Number’’) as a cross-reference 

for searching purposes. 

Comments Invited 

We invite you to submit any relevant 

written data, views, or arguments 

regarding this proposed AD. Send your 

comments to an address listed under 

ADDRESSES. Include ‘‘Docket No. FAA–

2004–19202; Directorate Identifier 

2004–NM–95–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 submitted 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://

dms.dot.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 that Web 

site, anyone can find and read the 

comments in any of our dockets, 

including the name of the individual 

who sent the comment (or signed the 

comment on behalf of an association, 

business, labor union, etc.). You can 

review DOT’s complete Privacy Act 

Statement in the Federal Register

published on April 11, 2000 (65 FR 

19477–78), or you can visit http://

dms.dot.gov.

We are reviewing the writing style we 

currently use in regulatory documents. 

We are interested in your comments on 

whether the style of this document is 

clear, and your suggestions to improve 

the clarity of our communications that 

affect you. You can get more 

information about plain language at 

http://www.faa.gov/language and http://

www.plainlanguage.gov.

Examining the Docket 

You can examine the AD docket on 

the Internet at http://dms.dot.gov, or in 

person at the Docket Management 

Facility office between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. The Docket 

Management Facility office (telephone 

(800) 647–5227) is on the plaza level of 

the Nassif Building at the DOT street 

address stated in the ADDRESSES section. 

Comments will be available in the AD 

docket shortly after the DMS receives 

them. 

Discussion 

We have received a report of damage 

caused by an electrical arc in a 

58108 Federal Register / Vol. 69, No. 188 / Wednesday, September 29, 2004 / Proposed Rules 

connector on the cable assembly for the 

lower anti-collision light. The connector 

was installed on a Boeing Model 757 

series airplane. Investigation revealed 

that the electrical arc was caused by 

fluids that collected in the open backshell of the connector. The fluids 

conducted electricity between the pins 

in the connector, which caused the 

electrical arc. The cable assembly is 

located in a flammable leakage zone, in 

the main wheel well, under the center 

fuel tank. An electrical arc in a 

flammable leakage zone may cause a 

fire. An electrical arc in the cable 

assembly for the lower anti-collision 

light could result in a fire in a 

flammable leakage zone of the airplane. 

Relevant Service Information 

We have reviewed Boeing Alert 

Service Bulletins 757–33A0048 (for 

Model 757–200, –200CB, and –200PF 

series airplanes) and 757–33A0049 (for 

Model 757–300 series airplanes), both 

dated March 28, 2002. The alert service 

bulletins describe procedures for the 

related investigative/corrective actions 

if certain part numbers (P/Ns) for the 

cable assembly for the lower anticollision light are installed. The 

corrective actions include replacing the 

cable assembly with a new, improved 

cable assembly; or modifying the 

existing cable assembly. The related 

investigative actions include testing the 

anti-collision light after replacing or 

modifying the cable assembly. 

Accomplishing the actions specified in 

the service information is intended to 

adequately address the unsafe 

condition. 

Both of the alert service bulletins refer 

to Grimes Service Bulletin 60–3414–33–

SB02, dated December 1, 2001, as an 

additional source of service information 

for modifying the cable assembly.

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 airplanes of this same 

type design. Therefore, we are 

proposing this AD, which would require 

identification of the P/N for the cable 

assembly for the lower anti-collision 

light, and related investigative/

corrective actions if necessary. The 

proposed AD would require you to use 

the service information described 

previously to perform these actions, 

except as discussed under ‘‘Differences 

Between the Proposed AD and the 

Service Information.’’

Differences Between the Proposed AD 

and the Service Information 

The alert service bulletins do not 

include an inspection or review of 

airplane maintenance records to identify 

the P/N of the cable assembly for the 

lower anti-collision light. This proposed 

AD would require these actions. This 

requirement provides relief to operators 

who do not have the specified P/Ns 

installed on their airplanes. Operators 

who do not have the specified part 

numbers installed would not be 

required to do an unnecessary 

replacement or modification. 

The alert service bulletins do not 

provide a compliance time for the 

replacement or modification of the cable 

assembly for the lower anti-collision 

light. We have determined that a 

compliance time of within 60 months 

after the effective date of the AD is 

appropriate. In developing an 

appropriate compliance time, we 

considered the degree of urgency 

associated with addressing the unsafe 

condition, the average utilization of the 

affected fleet, and the time necessary to 

perform the proposed actions. In light of 

these factors, we find that a 60-month 

compliance time for completing the 

proposed actions is warranted because it 

allows affected airplanes to continue to 

operate without compromising safety. 

The manufacturer concurs with this 

compliance time. 

Costs of Compliance 

This proposed AD would affect about 

974 airplanes worldwide, and 650 

airplanes of U.S. registry. The following 

table provides the estimated costs for 

U.S. operators to comply with this 

proposed AD.

ESTIMATED COSTS

Action Work hours Average labor 

rate per hour Parts Cost perairplane 

Number of 

U.S.-registered 

airplanes 

Fleet cost 

Inspection/Records Review ........................ 1 $65 None ........... $65 650 $42,250

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); and 

3. 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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD. See the ADDRESSES

section for a location to examine the 

regulatory evaluation.

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, 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 

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):

Boeing: Docket No. FAA–2004–19202; 

Directorate Identifier 2004–NM–95–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

(FAA) must receive comments on this AD 

action by November 15, 2004. 

Affected ADs 

(b) None. 

Applicability: (c) This AD applies to 

Boeing Model 757–200, –200PF, and –200CB 

series airplanes listed in Boeing Alert Service 

Bulletin 757–33A0048, dated March 28, 

2002; and Boeing Model 757–300 series 

airplanes listed in Boeing Alert Service 

Bulletin 757–33A0049, dated March 28, 

2002; certificated in any category. 

Federal Register / Vol. 69, No. 188 / Wednesday, September 29, 2004 / Proposed Rules 58109

Unsafe Condition 

(d) This AD was prompted by a report of 

damage caused by an electrical arc in a 

connector on the cable assembly for the 

lower anti-collision light. We are issuing this 

AD to prevent an electrical arc in the cable 

assembly for the lower anti-collision light, 

which could result in a fire in a flammable 

leakage zone of the airplane. 

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. 

Identification of Cable Assembly Part 

Number (P/N) 

(f) Within 60 months after the effective 

date of this AD: Do an inspection or a review 

of airplane maintenance records to identify 

the P/N of the cable assembly for the lower 

anti-collision light. If Boeing P/N S283T012–

15 or Grimes P/N 60–3414–9 is identified, or 

if the part number of the cable assembly 

cannot be positively identified, do the related 

investigative and corrective actions required 

by paragraph (g) of this AD. 

Related Investigative and Corrective Actions 

(g) Within 60 months after the effective 

date of this AD: Replace the cable assembly 

for the lower anti-collision light with a new, 

improved cable assembly, or modify the 

existing cable assembly; and do the related 

investigative actions; in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 757–33A0048 (for Model 

757–200, 200CB, and 200PF series airplanes); 

or 757–33A0049 (for Model 757–300 series 

airplanes); both dated March 28, 2002; as 

applicable. 

Parts Installation 

(h) As of the effective date of this AD, no 

person can install a cable assembly, Boeing 

P/N S283T012–15 or Grimes P/N 60–3414–9, 

in a flammable leakage zone on any airplane. 

Alternative Methods of Compliance 

(AMOCs) 

(i) The Manager, Seattle Aircraft 

Certification Office, FAA, has the authority to 

approve AMOCs for this AD, if requested in 

accordance with the procedures found in 14 

CFR 39.19.

Issued in Renton, Washington, on 

September 21, 2004. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service.

[FR Doc. 04–21819 Filed 9–28–04; 8:45 am] 

BILLING CODE 4910–13–P

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2004–19203; Directorate 

Identifier 2004–NM–109–AD] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 757–200 Series Airplanes

AGENCY: Federal Aviation 

Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Boeing Model 757–200 series 

airplanes. This proposed AD would 

require modifying the frequency 

converters located in the closet 

assembly in the passenger compartment, 

and making various wiring changes in 

and between the closet assembly and 

forward purser work station. This 

proposed AD also would require 

modifying the in-flight entertainment 

system prior to or concurrently with the 

modification of the frequency 

converters. This proposed AD is 

prompted by a certification review that 

revealed a frequency converter failure 

mode not identified in the original 

system design. We are proposing this 

AD to prevent a short circuit between 

the frequency converter output and the 

distribution circuit breakers, which 

could result in overheating and failure 

of adjacent wiring and consequent 

degraded operation of airplane systems.

DATES: We must receive comments on 

this proposed AD by November 15, 

2004.

ADDRESSES: Use one of the following 

addresses to submit comments on this 

proposed AD. 

• DOT Docket web site: Go to

http://dms.dot.gov and follow the 

instructions for sending your comments 

electronically. 

• 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, 400 

Seventh Street SW., Nassif Building, 

room PL–401, Washington, DC 20590. 

• By fax: (202) 493–2251. 

• Hand Delivery: Room PL–401 on 

the plaza level of the Nassif Building, 

400 Seventh Street SW., Washington, 

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

through Friday, except Federal holidays. 

For service information identified in 

this proposed AD, contact Boeing 

Commercial Airplanes, P.O. Box 3707, 

Seattle, Washington 98124–2207. 

You can examine the contents of this 

AD docket on the Internet at http://

dms.dot.gov, or at the Docket 

Management Facility, U.S. Department 

of Transportation, 400 Seventh Street 

SW., room PL–401, on the plaza level of 

the Nassif Building, Washington, DC. 

This docket number is FAA–2004–

19203; the directorate identifier for this 

docket is 2004–NM–109–AD.

FOR FURTHER INFORMATION CONTACT:

Technical information: Binh Tran, 

Aerospace Engineer, Systems and 

Equipment Branch, ANM–130S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98055–4056; telephone 

(425) 917–6485; fax (425) 917–6590. 

Plain language information: Marcia 

Walters, marcia.walters@faa.gov.

SUPPLEMENTARY INFORMATION: 

Docket Management System (DMS) 

The FAA has implemented new 

procedures for maintaining AD dockets 

electronically. As of May 17, 2004, new 

AD actions are posted on DMS and 

assigned a docket number. We track 

each action and assign a corresponding 

directorate identifier. The DMS AD 

docket number is in the form ‘‘Docket 

No. FAA–2004–99999.’’ The Transport 

Airplane Directorate identifier is in the 

form ‘‘Directorate Identifier 2004–NM–

999–AD.’’ Each DMS AD docket also 

lists the directorate identifier (‘‘Old 

Docket Number’’) as a cross-reference 

for searching purposes. 

Comments Invited 

We invite you to submit any written 

relevant data, views, or arguments 

regarding this proposed AD. Send your 

comments to an address listed under 

ADDRESSES. Include ‘‘Docket No. FAA–

2004–19203; Directorate Identifier 

2004–NM–109–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 

submitted 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://

dms.dot.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 that Web 

site, anyone can find and read the 

comments in any of our dockets, 

including the name of the individual