Federal Register / Vol. 72, No. 35 / Thursday, February 22, 2007 / Proposed Rules 7939 

Revise Airworthiness Limitations Section 

(ALS) To Incorporate Fuel Maintenance and 

Inspection Tasks 

(f) Within 3 months after the effective date 

of this AD, revise the ALS of the Instructions 

for Continued Airworthiness to incorporate 

Airbus A318/A319/A320/A321 ALS Part 5—

Fuel Airworthiness Limitations, dated 

February 28, 2006, as defined in Airbus 

A318/A319/A320/A321 Fuel Airworthiness 

Limitations, Document 95A.1931/05, Issue 1, 

dated December 19, 2005 (approved by the 

European Aviation Safety Agency (EASA) on 

March 14, 2006), Section 1, ‘‘Maintenance/ 

Inspection Tasks.’’ For all tasks identified in 

Section 1 of Document 95A.1931/05, the 

initial compliance times start from the 

effective date of this AD and must be 

accomplished within the repetitive interval 

specified in Section 1 of Document 

95A.1931/05. 

Revise ALS To Incorporate CDCCLs 

(g) Within 12 months after the effective 

date of this AD, revise the ALS of the 

Instructions for Continued Airworthiness to 

incorporate Airbus A318/A319/A320/A321 

ALS Part 5—Fuel Airworthiness Limitations, 

dated February 28, 2006, as defined in Airbus 

A318/A319/A320/A321 Fuel Airworthiness 

Limitations, Document 95A.1931/05, Issue 1, 

dated December 19, 2005 (approved by the 

EASA on March 14, 2006), Section 2, 

‘‘Critical Design Configuration Control 

Limitations.’’

No Alternative Inspections, Inspection 

Intervals, or CDCCLs 

(h) Except as provided by paragraph (i) of 

this AD: After accomplishing the actions 

specified in paragraphs (f) and (g) of this AD, 

no alternative inspections, inspection 

intervals, or CDCCLs may be used. 

Alternative Methods of Compliance 

(AMOCs) 

(i)(1) The Manager, International Branch, 

ANM–116, Transport Airplane Directorate, 

FAA, has the authority to approve AMOCs 

for this AD, if requested in accordance with 

the procedures found in 14 CFR 39.19. 

(2) Before using any AMOC approved in 

accordance with § 39.19 on any airplane to 

which the AMOC applies, notify the 

appropriate principal inspector in the FAA 

Flight Standards Certificate Holding District 

Office. 

Related Information 

(j) EASA airworthiness directive 2006–

0203, dated July 11, 2006, also addresses the 

subject of this AD. 

Issued in Renton, Washington, on 

February 7, 2007. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E7–2977 Filed 2–21–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–27302; Directorate 

Identifier 2006–NM–273–AD] 

RIN 2120–AA64 

Airworthiness Directives; McDonnell 

Douglas DC–10–30 and DC–10–30F 

(KC–10A and KDC–10) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain McDonnell Douglas DC–10–30 

and DC–10–30F (KC–10A and KDC–10) 

airplanes. This proposed AD would 

require installing Teflon sleeving 

around the fuel pump wire harness 

inside the conduit in the aft 

supplemental fuel tank. This proposed 

AD results from fuel system reviews 

conducted by the manufacturer. We are 

proposing this AD to prevent the 

potential of ignition sources inside fuel 

tanks, which, in combination with 

flammable fuel vapors, could result in 

fuel tank explosions and consequent 

loss of the airplane. 

DATES: We must receive comments on 

this proposed AD by April 9, 2007. 

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. 

• 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. 

Contact Boeing Commercial 

Airplanes, Long Beach Division, 3855 

Lakewood Boulevard, Long Beach, 

California 90846, Attention: Data and 

Service Management, Dept. C1–L5A 

(D800–0024), for the service information 

identified in this proposed AD. 

FOR FURTHER INFORMATION CONTACT: 

Samuel Lee, Aerospace Engineer, 

Propulsion Branch, ANM–140L, FAA, 

Los Angeles Aircraft Certification 

Office, 3960 Paramount Boulevard, 

Lakewood, California 90712–4137; 

telephone (562) 627–5262; fax (562) 

627–5210. 

SUPPLEMENTARY INFORMATION: 

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 in the 

ADDRESSES section. Include the docket 

number ‘‘FAA–2007–27302; Directorate 

Identifier 2006–NM–273–AD’’ at the 

beginning 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:// 

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 may 

review DOT’s complete Privacy Act 

Statement in the Federal Register 

published on April 11, 2000 (65 FR 

19477–78), or you may visit http:// 

dms.dot.gov. 

Examining the Docket 

You may 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 located 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 Docket 

Management System receives them. 

Discussion 

The FAA has examined the 

underlying safety issues involved in fuel 

tank explosions on several large 

transport airplanes, including the 

adequacy of existing regulations, the 

service history of airplanes subject to 

those regulations, and existing 

maintenance practices for fuel tank 

systems. As a result of those findings, 


erjones on PRODPC74 with PROPOSALS
7940 Federal Register / Vol. 72, No. 35 / Thursday, February 22, 2007 / Proposed Rules 

we issued a regulation titled ‘‘Transport 

Airplane Fuel Tank System Design 

Review, Flammability Reduction and 

Maintenance and Inspection 

Requirements’’ (66 FR 23086, May 7, 

2001). In addition to new airworthiness 

standards for transport airplanes and 

new maintenance requirements, this 

rule included Special Federal Aviation 

Regulation No. 88 (‘‘SFAR 88,’’

Amendment 21–78, and subsequent 

Amendments 21–82 and 21–83). 

Among other actions, SFAR 88 

requires certain type design (i.e., type 

certificate (TC) and supplemental type 

certificate (STC)) holders to substantiate 

that their fuel tank systems can prevent 

ignition sources in the fuel tanks. This 

requirement applies to type design 

holders for large turbine-powered 

transport airplanes and for subsequent 

modifications to those airplanes. It 

requires them to perform design reviews 

and to develop design changes and 

maintenance procedures if their designs 

do not meet the new fuel tank safety 

standards. As explained in the preamble 

to the rule, we intended to adopt 

airworthiness directives to mandate any 

changes found necessary to address 

unsafe conditions identified as a result 

of these reviews. In evaluating these 

design reviews, we have established 

four criteria intended to define the 

unsafe conditions associated with fuel 

tank systems that require corrective 

actions. The percentage of operating 

time during which fuel tanks are 

exposed to flammable conditions is one 

of these criteria. The other three criteria 

address the failure types under 

evaluation: Single failures, single 

failures in combination with a latent 

condition(s), and in-service failure 

experience. For all four criteria, the 

evaluations included consideration of 

previous actions taken that may mitigate 

the need for further action. 

We have determined that the actions 

identified in this proposed AD are 

necessary to reduce the potential of 

ignition sources inside fuel tanks, 

which, in combination with flammable 

fuel vapors, could result in fuel tank 

explosions and consequent loss of the 

airplane. 

We have received a report indicating 

that fuel leaked from the No. 1 main fuel 

tank boost pump electrical conduit into 

the fuel shroud drain system, on a 

Model DC–10–30 airplane. The airplane 

had accumulated about 25,000 total 

flight hours. Investigation revealed that 

electrical arcing between chafed wiring 

and the inside of the conduit wall 

caused a hole in the conduit. Fuel then 

leaked into the conduit through the hole 

from the fuel tank. This condition, if not 

prevented, could result in the potential 

of ignition sources inside fuel tanks, 

which, in combination with flammable 

fuel vapors, could result in fuel tank 

explosions and consequent loss of the 

airplane. 

Relevant Service Information 

We have reviewed McDonnell 

Douglas DC–10 Service Bulletin 24–128, 

dated January 19, 1984. The service 

bulletin describes procedures for 

installing Teflon sleeving around the 

fuel pump wire harness inside the 

conduit in the aft supplemental fuel 

tank. Accomplishing the actions 

specified in the service information is 

intended to adequately address the 

unsafe condition. 

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. For this reason, we are 

proposing this proposed AD, which 

would require accomplishing the 

actions specified in the service 

information described previously, 

except as discussed under ‘‘Difference 

Between the Proposed AD and Service 

Bulletin.’’

Difference Between the Proposed AD 

and Service Bulletin 

The service bulletin recommends 

accomplishing the modification within 

34,000 flight hours after installing the 

supplemental fuel tank. When the 

service bulletin was issued in 1984, we 

did not have a safety concern that 

warranted AD action. However, the 

service bulletin was re-evaluated as part 

of the SFAR 88 review activity. We 

determined that AD action is warranted. 

From that review, we also determined 

that the recommended compliance time 

should be re-examined. Boeing 

subsequently recommended a 60-month 

compliance time, which is consistent 

with the compliance time recommended 

in similar Boeing service bulletins. In 

developing an appropriate compliance 

time for this AD, we considered the 

typical utilization of the affected 

airplanes, the degree of urgency 

associated with the subject unsafe 

condition, and the time necessary to 

perform the modification (2 hours). In 

light of all of these factors, we find that 

a 60-month compliance time represents 

an appropriate interval of time for 

affected airplanes to continue to operate 

without compromising safety. 

Costs of Compliance 

There are about 5 airplanes of the 

affected design in the worldwide fleet. 

This proposed AD would affect about 5 

airplanes of U.S. registry. The proposed 

actions would take about 2 work hours 

per airplane, at an average labor rate of 

$80 per work hour. The cost of required 

parts is negligible. Based on these 

figures, the estimated cost of the 

proposed AD for U.S. operators is $800, 

or $160 per airplane. 

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 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 and placed it in the 

AD docket. 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. 


erjones on PRODPC74 with PROPOSALS
Federal Register / Vol. 72, No. 35 / Thursday, February 22, 2007 / Proposed Rules 7941 

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 Federal Aviation 

Administration (FAA) amends § 39.13 

by adding the following new 

airworthiness directive (AD): 

McDonnell Douglas: Docket No. FAA–2007–

27302; Directorate Identifier 2006–NM–

273–AD. 

Comments Due Date 

(a) The FAA must receive comments on 

this AD action by April 9, 2007. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to McDonnell Douglas 

Model DC–10–30 and DC–10–30F (KC–10A 

and KDC–10) airplanes, certificated in any 

category; as identified McDonnell Douglas 

DC–10 Service Bulletin 24–128, dated 

January 19, 1984. 

Unsafe Condition 

(d) This AD results from fuel system 

reviews conducted by the manufacturer. We 

are issuing this AD to prevent the potential 

of ignition sources inside fuel tanks, which, 

in combination with flammable fuel vapors, 

could result in fuel tank explosions and 

consequent loss 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. 

Modification 

(f) Within 60 months after the effective 

date of this AD, install Teflon sleeving 

around the fuel pump wire harness inside the 

conduit in the aft supplemental fuel tank, in 

accordance with the Accomplishment 

Instructions of McDonnell Douglas DC–10 

Service Bulletin 24–128, dated January 19, 

1984. 

Alternative Methods of Compliance 

(AMOCs) 

(g)(1) The Manager, Los Angeles 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. 

(2) Before using any AMOC approved in 

accordance with § 39.19 on any airplane to 

which the AMOC applies, notify the 

appropriate principal inspector in the FAA 

Flight Standards Certificate Holding District 

Office. 

Issued in Renton, Washington, on 

February 13, 2007. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E7–2975 Filed 2–21–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HEALTH AND 

HUMAN SERVICES 

Food and Drug Administration 

21 CFR Part 352 

[Docket No. 2006N–0479] 

RIN 0910–AF43 

Insect Repellent-Sunscreen Drug 

Products for Over-the-Counter Human 

Use; Request for Information and 

Comments 

AGENCY: Food and Drug Administration, 

HHS. 

ACTION: Request for data and 

information. 

SUMMARY: The Food and Drug 

Administration (FDA) is seeking 

information to formulate a regulatory 

position on insect repellent products 

that contain over-the-counter (OTC) 

sunscreen ingredients. FDA is 

considering amending its monograph for 

OTC sunscreen drug products (the 

regulation that establishes conditions 

under which these drug products are 

generally recognized as safe and 

effective and not misbranded) to add 

conditions for marketing insect 

repellent-sunscreen drug products. The 

insect repellent ingredients in these 

products are regulated by the 

Environmental Protection Agency 

(EPA). Elsewhere in this issue of the 

Federal Register is a companion 

document in which EPA is also 

requesting information and comments 

on these products. The decision on what 

regulations, if any, to propose will be 

based, in part, on information and 

comments submitted in response to this 

request for data and information. 

DATES: Submit written or electronic 

comments by May 23, 2007. 

ADDRESSES: You may submit comments, 

identified by Docket No. 2006N–0479 or 

RIN 0910–AF43, by any of the following 

methods: 

Electronic Submissions 

Submit electronic comments in the 

following ways: 

• Federal eRulemaking Portal: http:// 

www.regulations.gov. Follow the 

instructions for submitting comments. 

• Agency Web site: http:// 

www.fda.gov/dockets/ecomments. 

Follow the instructions for submitting 

comments on the agency Web site. 

Written Submissions 

Submit written submissions in the 

following ways: 

• FAX: 301–827–6870. 

• Mail/Hand delivery/Courier [For 

paper, disk, or CD–ROM submissions]: 

Division of Dockets Management (HFA–

305), Food and Drug Administration, 

5630 Fishers Lane, rm. 1061, Rockville, 

MD 20852. 

To ensure more timely processing of 

comments, FDA is no longer accepting 

comments submitted to the agency by email. FDA encourages you to continue 

to submit electronic comments by using 

the Federal eRulemaking Portal or the 

agency Web site, as described in the 

Electronic Submissions portion of this 

paragraph. 

Instructions: All submissions received 

must include the agency name and 

Docket No. and Regulatory Information 

Number (RIN) for this rulemaking. All 

comments received will be posted 

without change to http://www.fda.gov/ 

ohrms/dockets/default.htm, including 

any personal information provided. For 

additional information on submitting 

comments, see the ‘‘Comments’’ heading 

of the SUPPLEMENTARY INFORMATION

section of this document. 

Docket: For access to the docket to 

read background documents or 

comments received, go to http:// 

www.fda.gov/ohrms/dockets/ 

default.htm and insert the docket 

number, found in brackets in the 

heading of this document, into the 

‘‘Search’’ box and follow the prompts 

and/or go to the Division of Dockets 

Management, 5630 Fishers Lane, rm. 

1061, Rockville, MD 20852. 

FOR FURTHER INFORMATION CONTACT: 

Matthew R. Holman, Center for Drug 

Evaluation and Research, Food and 

Drug Administration, 10903 New 

Hampshire Ave., Bldg. 22, MS 5411, 

Silver Spring, MD 20993, 301–796–

2090. 

SUPPLEMENTARY INFORMATION: 

I. Background 

A. Description of Insect RepellentSunscreen Drug Products 

FDA and EPA are seeking information 

to formulate a regulatory position for 

combination insect repellent-sunscreen 

drug products for use on human skin. 

Because sunscreen drug products are 

regulated by FDA and the insect 

repellent components of these products 

are separately regulated by EPA, both 

agencies are seeking comments to 


erjones on PRODPC74 with PROPOSALS