61342 Federal Register / Vol. 73, No. 201 / Thursday, October 16, 2008 / Rules and Regulations 

TABLE 5—PREVIOUS MATERIAL INCORPORATED BY REFERENCE—Continued 

Use— Dated— To the— 

Canadair Temporary Revision RJ/155–3 ............................... March 25, 2008 ....... Canadair Regional Jet Airplane Flight Manual, CSP A–012. 

Issued in Renton, Washington, on October 

7, 2008. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E8–24549 Filed 10–15–08; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–0640; Directorate 

Identifier 2008–NM–070–AD; Amendment 

39–15690; AD 2008–21–06] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 747–400, 747–400D, and 747– 

400F Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Boeing Model 747–400, 747–400D, and 

747–400F series airplanes. This AD 

requires installing an extension tube to 

the existing pump discharge port of the 

scavenge pump on the outboard side of 

the center fuel tank in the main fuel 

tank #2. This AD results from fuel 

system reviews conducted by the 

manufacturer. We are issuing this AD to 

prevent a fire or explosion in the fuel 

tank and consequent loss of the 

airplane. 

DATES: This AD is effective November 

20, 2008. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of November 20, 2008. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, P.O. Box 3707, 

Seattle, Washington 98124–2207. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Management Facility between 9 

a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The AD 

docket contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (telephone 800–647–5527) 

is the Document Management Facility, 

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: 

Sulmo Mariano, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6501; fax (425) 917–6590. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an airworthiness 

directive (AD) that would apply to 

certain Boeing Model 747–400, 747– 

400D, and 747–400F series airplanes. 

That NPRM was published in the 

Federal Register on June 18, 2008 (73 

FR 34663). That NPRM proposed to 

require installing an extension tube to 

the existing pump discharge port of the 

scavenge pump on the outboard side of 

the center fuel tank in the main fuel 

tank #2. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Support for the NPRM 

Boeing concurs with the contents of 

the NPRM. Air Line Pilots Association, 

International (ALPA), supports the 

intent of the NPRM. 

Request To Reduce the Compliance 

Time 

ALPA feels that the 60-month 

compliance time should be reduced to 

24 months. ALPA states that a shorter 

compliance time should be imposed 

given the number of affected aircraft and 

the time required for installation of 

tubing. 

We disagree. In developing the 

compliance time for this NPRM, we 

considered not only the safety 

implications of the identified unsafe 

condition, but the average utilization 

rate of the affected fleet, the practical 

aspects of an orderly modification of the 

fleet during regular maintenance 

periods, the availability of required 

parts, and the time necessary for the 

rulemaking process. The compliance 

time is determined to be appropriate. 

Therefore, we have not changed the AD 

in this regard. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

Costs of Compliance 

We estimate that this AD affects 31 

airplanes of U.S. registry. It takes about 

16 work-hours per product to comply 

with this AD. The average labor rate is 

$80 per work-hour. Required parts cost 

about $900 per product. Based on these 

figures, the cost of this AD to the U.S. 

operators is $67,580, or $2,180 per 

product. 

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 

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: 


rwilkins on PROD1PC63 with NOTICES
Federal Register / Vol. 73, No. 201 / Thursday, October 16, 2008 / Rules and Regulations 61343 

(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), 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. 

You can find our regulatory 

evaluation and the estimated costs of 

compliance in the AD Docket. 

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 AD: 

2008–21–06 Boeing: Amendment 39–15690. 

Docket No. FAA–2008–0640; Directorate 

Identifier 2008–NM–070–AD. 

Effective Date 

(a) This airworthiness directive (AD) is 

effective November 20, 2008. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Boeing Model 747– 

400, 747–400D, and 747–400F series 

airplanes, certificated in any category; as 

identified in Boeing Special Attention 

Service Bulletin 747–28–2260, dated March 

13, 2008. 

Unsafe Condition 

(d) This AD results from fuel system 

reviews conducted by the manufacturer. We 

are issuing this AD to prevent a fire or 

explosion in the fuel tank and consequent 

loss of the airplane. 

Compliance 

(e) Comply with this AD within the 

compliance times specified, unless already 

done. 

Installation 

(f) Within 60 months after the effective 

date of this AD, install an extension tube to 

the existing pump discharge port of the 

scavenge pump on the outboard side of the 

center fuel tank in the main fuel tank #2, in 

accordance with the Accomplishment 

Instructions of Boeing Special Attention 

Service Bulletin 747–28–2260, dated March 

13, 2008. 

Alternative Methods of Compliance 

(AMOCs) 

(g)(1) The Manager, Seattle Aircraft 

Certification Office (SACO), FAA, ATTN: 

Sulmo Mariano, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, SACO, 

1601 Lind Avenue, SW., Renton, Washington 

98057–3356; telephone (425) 917–6501; fax 

(425) 917–6590; has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. 

(2) To request a different method of 

compliance or a different compliance time 

for this AD, follow the procedures in 14 CFR 

39.19. Before using any approved AMOC on 

any airplane to which the AMOC applies, 

notify your appropriate principal inspector 

(PI) in the FAA Flight Standards District 

Office (FSDO), or lacking a PI, your local 

FSDO. 

Material Incorporated by Reference 

(h) You must use Boeing Special Attention 

Service Bulletin 747–28–2260, dated March 

13, 2008, to do the actions required by this 

AD, unless the AD specifies otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, P.O. Box 3707, Seattle, 

Washington 98124–2207. 

(3) You may review copies of the service 

information incorporated by reference at the 

FAA, Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington; or 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/ 

code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on October 

2, 2008. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E8–24130 Filed 10–15–08; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–0749; Directorate 

Identifier 2008–CE–044–AD; Amendment 

39–15692; AD 2008–21–08] 

RIN 2120–AA64 

Airworthiness Directives; Air Tractor, 

Inc. Models AT–402, AT–402A, and AT– 

402B Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Air Tractor, Inc. (Air Tractor) Models 

AT–402, AT–402A, and AT–402B 

airplanes. This AD requires you to 

repetitively visually inspect the rudder 

and vertical fin hinge attaching 

structure for loose fasteners and inspect 

the rudder or vertical fin skins, spars, 

hinges, or brackets for cracks and/or 

corrosion. This AD also requires you to 

replace any damaged parts found as a 

result of the inspections and install an 

external doubler at the upper rudder 

hinge. Installation of the external 

doubler at the upper rudder hinge is 

terminating action for the repetitive 

inspection requirements. This AD 

results from a report of a Model AT–402 

airplane with a loose upper rudder 

hinge caused by fatigue. We are issuing 

this AD to detect and correct loose 

fasteners; any cracks in the rudder or 

vertical fin skins, spars, hinges, or 

brackets; or corrosion of the rudder and 

vertical fin hinge attaching structure. 

Hinge failure adversely affects ability to 

control yaw and has led to the rudder 

folding over in flight. This condition 

could allow the rudder to contact the 

elevator and affect ability to control 

pitch with consequent loss of control. 

DATES: This AD becomes effective on 

November 20, 2008. 

On November 20, 2008, the Director 

of the Federal Register approved the 

incorporation by reference of Snow 

Engineering Co. Service Letter #247, 

revised June 2, 2008, listed in this AD. 

As of December 21, 2006 (71 FR 

66661, November 16, 2006), the Director 

of the Federal Register approved the 

incorporation by reference of Snow 

Engineering Co. Process Specification 

Number 145, dated December 6, 1991, 

listed in this AD. 

ADDRESSES: For service information 

identified in this AD, contact Air 

Tractor, Inc., P.O. Box 485, Olney, Texas 


rwilkins on PROD1PC63 with NOTICES