Federal Register / Vol. 75, No. 126 / Thursday, July 1, 2010 / Rules and Regulations 38007 

Boeing Service Bulletin 747–53A2449, 

Revision 1, dated May 24, 2001. 

(5) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, Washington 98124–2207; telephone 

206–544–5000, extension 1; fax 206–766– 

5680; e-mail me.boecom@boeing.com; 

Internet https://www.myboeingfleet.com. 

(6) You may review copies of the service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue, SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, call 

425–227–1221. 

(7) You may also review copies of the 

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/ 

code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on June 17, 

2010. 

Robert D. Breneman, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–15654 Filed 6–30–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0275; Directorate 

Identifier 2009–NM–231–AD; Amendment 

39–16344; AD 2010–14–01] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Model 747–100, 747–100B, 

747–100B SUD, 747–200B, 747–200C, 

747–200F, 747–300, 747–400, 747– 

400F, 747SR, and 747SP Series 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Model 747–100, 747–100B, 747–100B 

SUD, 747–200B, 747–200C, 747–200F, 

747–300, 747–400, 747–400F, 747SR, 

and 747SP series airplanes. This AD 

requires reworking or replacing certain 

duct assemblies in the environmental 

control system (ECS). This AD results 

from reports of duct assemblies in the 

ECS with burned Boeing Material 

Specification (BMS) 8–39 polyurethane 

foam insulation. This proposed AD also 

results from a report from the airplane 

manufacturer that airplanes were 

assembled with duct assemblies in the 

ECS wrapped with BMS 8–39 

polyurethane foam insulation, a 

material of which the fire retardant 

properties deteriorate with age. We are 

issuing this AD to prevent a potential 

electrical arc from igniting the BMS 8– 

39 polyurethane foam insulation on the 

duct assemblies of the ECS, which could 

propagate a small fire and lead to a 

larger fire that might spread throughout 

the airplane through the ECS. 

DATES: This AD is effective August 5, 

2010. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of August 5, 2010. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P. O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; telephone 206–544–5000, 

extension 1; fax 206–766–5680; e-mail 

me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. 

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: Sue 

McCormick, Aerospace Engineer, Cabin 

Safety and Environmental Systems 

Branch, ANM–150S, FAA, Seattle 

Aircraft Certification Office, 1601 Lind 

Avenue, SW., Renton, Washington 

98057–3356; telephone (303) 342–1082; 

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 Model 747–100, 747–100B, 747– 

100B SUD, 747–200B, 747–200C, 747– 

200F, 747–300, 747–400, 747–400F, 

747SR, and 747SP series airplanes. That 

NPRM was published in the Federal 

Register on April 12, 2010 (75 FR 

18446). That NPRM proposed to require 

reworking or replacing certain duct 

assemblies in the environmental control 

system (ECS). 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. The 

Boeing Company concurs with the 

contents of the NPRM, and Delta 

Airlines states that it is not affected by 

the NPRM. 

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 

There are about 558 airplanes of the 

affected design in the worldwide fleet. 

The average labor rate is $85 per workhour. The following table provides the 

estimated costs for U.S. operators to 

comply with this AD. 

ESTIMATED COSTS

Action Work hours Parts cost, per airplane Cost per airplane 

Number of 

U.S.-registered 

airplanes 

Fleet cost 

Duct assembly rework, 

specified in Boeing 

Service Bulletin 747– 

21A2421.

8 per duct (average of 

130 ducts per airplane).

$12,305 (average) .......... $100,705 (average) ... 185 ................... $18,630,425. 

Duct assembly rework or 

replacement, specified 

in Boeing Service Bulletin 747–21A2422.

1 per duct (1 duct per airplane).The manufacturer states 

that it will supply required parts to the operators at no cost.

$85 ............................ Up to 168 ......... Up to $14,280. 

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38008 Federal Register / Vol. 75, No. 126 / Thursday, July 1, 2010 / Rules and Regulations 

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: 

(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: 

2010–14–01 The Boeing Company: 

Amendment 39–16344. Docket No. 

FAA–2010–0275; Directorate Identifier 

2009–NM–231–AD. 

Effective Date 

(a) This airworthiness directive (AD) is 

effective August 5, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to the airplanes 

specified in paragraphs (c)(1) and (c)(2) of 

this AD, certificated in any category. 

(1) The Boeing Company Model 747–100, 

747–100B, 747–100B SUD, 747–200B, 747– 

200C, 747–200F, 747–300, 747–400, 747SR, 

and 747SP series airplanes identified in 

Boeing Service Bulletin 747–21A2421, 

Revision 2, dated December 19, 2006. 

(2) The Boeing Company Model 747–100, 

747–100B, 747–200B, 747–200C, 747–200F, 

747–300, 747–400F, 747SR, and 747SP series 

airplanes identified in Boeing Service 

Bulletin 747–21A2422, Revision 2, dated 

November 16, 2006. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 21: Air conditioning. 

Unsafe Condition 

(e) This AD results from reports of duct 

assemblies in the environmental control 

system (ECS) with burned Boeing Material 

Specification (BMS) 8–39 polyurethane foam 

insulation. This AD also results from a report 

from the airplane manufacturer that airplanes 

were assembled with duct assemblies in the 

ECS wrapped with BMS 8–39 polyurethane 

foam insulation, a material of which the fire 

retardant properties deteriorate with age. We 

are issuing this AD to prevent a potential 

electrical arc from igniting the BMS 8–39 

polyurethane foam insulation on the duct 

assemblies of the ECS, which could 

propagate a small fire and lead to a larger fire 

that could spread throughout the airplane 

through the ECS. 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

ECS Duct Assembly Rework or Replacement 

(g) Within 72 months after the effective 

date of this AD, rework or replace the 

applicable duct assemblies in the ECS 

specified in and in accordance with the 

Accomplishment Instructions and 

Appendices A through F of Boeing Service 

Bulletin 747–21A2421, Revision 2, dated 

December 19, 2006 (for Model 747–100, 747– 

100B, 747–100B SUD, 747–200B, 747–200C, 

747–200F, 747–300, 747–400, 747SR, and 

747SP series airplanes); and the 

Accomplishment Instructions and 

Appendices A through C of Boeing Service 

Bulletin 747–21A2422, Revision 2, dated 

November 16, 2006 (for Model 747–100, 747– 

100B, 747–200B, 747–200C, 747–200F, 747– 

300, 747–400F, 747SR, and 747SP series 

airplanes). 

Parts Installation 

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

person may install an ECS duct assembly 

with BMS 8–39 polyurethane foam insulation 

on any airplane. 

Alternative Methods of Compliance 

(AMOCs) 

(i)(1) The Manager, Seattle Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. Send information to ATTN: Sue 

McCormick, Aerospace Engineer, Cabin 

Safety and Environmental Systems Branch, 

ANM–150S, FAA, Seattle Aircraft 

Certification Office, 1601 Lind Avenue, SW., 

Renton, Washington 98057–3356; telephone 

(303) 342–1082; fax (425) 917–6590. Or, 

e-mail information to 9–ANM–Seattle-ACO– 

AMOC–Requests@faa.gov. 

(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 principal maintenance inspector 

(PMI) or principal avionics inspector (PAI), 

as appropriate, or lacking a principal 

inspector, your local Flight Standards District 

Office. The AMOC approval letter must 

specifically reference this AD. 

Material Incorporated by Reference 

(j) You must use Boeing Service Bulletin 

747–21A2421, Revision 2, dated December 

19, 2006; or Boeing Service Bulletin 747– 

21A2422, Revision 2, dated November 16, 

2006; as applicable; 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, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, Washington 98124–2207; telephone 

206–544–5000, extension 1; fax 206–766– 

5680; e-mail me.boecom@boeing.com; 

Internet https://www.myboeingfleet.com. 

(3) You may review copies of the service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue, SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, call 

425–227–1221. 

(4) You may also review copies of the 

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/ 

code_of_federal_regulations/ 

ibr_locations.html. 

WReier-Aviles on DSKGBLS3C1PROD with RULES

Federal Register / Vol. 75, No. 126 / Thursday, July 1, 2010 / Rules and Regulations 38009 

Issued in Renton, Washington, on June 17, 

2010. 

Robert D. Breneman, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–15659 Filed 6–30–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0638; Directorate 

Identifier 2007–NM–333–AD; Amendment 

39–16346; AD 2008–01–01] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Model 737–200, –300, –400, 

–500, –600, –700, –800, and –900 Series 

Airplanes; Model 747–400 Series 

Airplanes; Model 757–200 and 757–300 

Series Airplanes; Model 767–200, 767– 

300, and 767–400ER Series Airplanes; 

and Model 777–200 Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule; request for 

comments. 

SUMMARY: This document publishes in 

the Federal Register an amendment 

adopting airworthiness directive (AD) 

2008–01–01 that was sent previously to 

all known U.S. owners and operators of 

certain Model 737–200, –300, –400, 

–500, –600, –700, –800, and –900 series 

airplanes; Model 747–400 series 

airplanes; Model 757–200 and 757–300 

series airplanes; Model 767–200, 767– 

300, and 767–400ER series airplanes; 

and Model 777–200 series airplanes by 

individual notices. This AD requires 

replacing a certain flight deck door 

feature and revising the modification 

record placard. This AD is prompted by 

a report indicating that the feature of the 

flight deck door is defective. We are 

issuing this AD to prevent failure of this 

feature, which could jeopardize flight 

safety. 

DATES: This AD becomes effective July 

6, 2010 to all persons except those 

persons to whom it was made 

immediately effective by AD 2008–01– 

01, issued December 26, 2007, which 

contained the requirements of this 

amendment. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of July 6, 2010. 

We must receive comments on this 

AD by August 16, 2010. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

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

Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

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

Washington, DC 20590, between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. 

For service information identified in 

this AD, contact Jamco America, Inc., 

1018 80th Street, SW., Everett, WA 

98203; telephone 425–347–4735, ext: 

1192 (David Crotty); fax 425–353–2343; 

e-mail David_Crotty@jamcoamerica.com; Internet http://jamcoamerica.com. 

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 street address for 

the Docket Office (telephone 800–647– 

5527) is in the ADDRESSES section. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Patrick Gillespie, Aerospace Engineer, 

Cabin Safety and Environmental 

Systems Branch, ANM–150S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6429; fax (425) 917–6590. 

SUPPLEMENTARY INFORMATION: On 

December 26, 2007, we issued AD 2008– 

01–01, which applies to certain Model 

737–200, –300, –400, –500, –600, –700, 

–800, and –900 series airplanes; Model 

747–400 series airplanes; Model 757– 

200 and 757–300 series airplanes; 

Model 767–200, 767–300, and 767– 

400ER series airplanes; and Model 777– 

200 series airplanes. 

Background 

We have received a report indicating 

that a feature of the flight deck door is 

defective. This condition, if not 

corrected, could result in a failure of the 

feature, which could jeopardize flight 

safety. 

Relevant Service Information 

We reviewed the following service 

bulletins: 

TABLE—SERVICE BULLETINS

Jamco Service Bulletin— For Model— 

52–2295, Revision 1, dated October 10, 2007 ........................................ 737–200 –300, –400, –500, –600, –700, –800, and –900 series airplanes. 

52–2302, Revision 1, dated October 10, 2007 ........................................ 767–200, –300, and –400ER series airplanes. 

52–2303, Revision 1, dated October 10, 2007 ........................................ 747–400 series airplanes. 

52–2304, Revision 2, dated November 1, 2007 ...................................... 757–200 and –300 series airplanes. 

52–2305, Revision 1, dated October 10, 2007 ........................................ 777–200 series airplanes. 

The service bulletins describe 

procedures for replacing a certain flight 

deck door feature and revising the 

modification record placard. 

FAA’s Determination and Requirements 

of This AD 

Since the unsafe condition described 

is likely to exist or develop on other 

airplanes of these same type designs, we 

issued AD 2008–01–01 to prevent the 

failure of a certain feature of the flight 

deck door. The AD requires 

accomplishing the actions specified in 

the service information previously 

described. 

We found that notice and opportunity 

for prior public comment on AD 2008– 

01–01 were contrary to the public 

interest, and good cause existed to make 

the AD effective immediately by 

individual notices issued on December 

26, 2007, to all known U.S. owners and 

operators of certain Model 737–200, 

–300, –400, –500, –600, –700, –800, and 

–900 series airplanes; Model 747–400 

series airplanes; Model 757–200 and 

WReier-Aviles on DSKGBLS3C1PROD with RULES