Federal Register / Vol. 72, No. 65 / Thursday, April 5, 2007 / Rules and Regulations 16701 

Actions and Compliance 

(f) Within 50 flight hours or 1 month, 

whichever occurs first, after the effective date 

of this AD, unless already done: Do the 

actions in paragraphs (f)(1) and (f)(2) of this 

AD. 

(1) Inspect the wiring harness for chafing 

and perform repairs, as applicable, according 

to Gulfstream Service Bulletin 200–31–301, 

dated January 19, 2007. 

(2) After doing the inspection and all 

applicable repairs required by paragraph 

(f)(1) of this AD, before further flight, inspect 

to make sure the wire harnesses have proper 

clearance and reroute/relocate wire harnesses 

to obtain proper clearance, as applicable, 

according to Gulfstream Service Bulletin 

200–31–301, dated January 19, 2007. 

FAA AD Differences 

Note: This AD differs from the MCAI and/ 

or service information as follows: No 

differences. 

Other FAA AD Provisions 

(g) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, 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: Mike Borfitz, 

Aerospace Engineer, International Branch, 

ANM–116, FAA, Transport Airplane 

Directorate, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone (425) 

227–2677; fax (425) 227–1149. 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. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

(3) Reporting Requirements: For any 

reporting requirement in this AD, under the 

provisions of the Paperwork Reduction Act, 

the Office of Management and Budget (OMB) 

has approved the information collection 

requirements and has assigned OMB Control 

Number 2120–0056. 

Related Information 

(h) Refer to MCAI Israeli Airworthiness 

Directive 31–07–01–12, dated February 15, 

2007, and Gulfstream Service Bulletin 200–

31–301, dated January 19, 2007, for related 

information. 

Material Incorporated by Reference 

(i) You must use Gulfstream Service 

Bulletin 200–31–301, dated January 19, 2007, 

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 Gulfstream Aerospace 

Corporation, P.O. Box 2206, Mail Station D–

25, Savannah, Georgia 31402–2206. 

(3) You may review copies 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/cfr/ibrlocations.html. 

Issued in Renton, Washington, on March 

23, 2007. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E7–6263 Filed 4–4–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2006–26685; Directorate 

Identifier 2006–NM–200–AD; Amendment 

39–15015; AD 2007–07–14] 

RIN 2120–AA64 

Airworthiness Directives; Empresa 

Brasileira de Aeronautica S.A. 

(EMBRAER) Model EMB–135BJ 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Empresa Brasileira de Aeronautica S.A. 

(EMBRAER) Model EMB–135BJ 

airplanes. This AD requires modifying 

the forward and aft auxiliary fuel tanks. 

This AD results from a fuel system 

reassessment according to SFAR 88 

criteria, which revealed the possibility 

of sparks due to chafing between the 

harnesses of the forward and aft 

auxiliary fuel tanks, between certain 

harnesses attached to the aircraft 

structure, or between certain harnesses 

attached to certain mechanical 

components. We are issuing this AD to 

prevent a potential ignition source 

inside a fuel tank, which, in 

combination with flammable fuel 

vapors, could result in a fuel tank 

explosion. 

DATES: This AD becomes effective May 

10, 2007. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of May 10, 2007. 

ADDRESSES: You may examine the 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., Nassif Building, Room PL–401, 

Washington, DC. 

Contact Empresa Brasileira de 

Aeronautica S.A. (EMBRAER), P.O. Box 

343—CEP 12.225, Sao Jose dos Campos–

SP, Brazil, for service information 

identified in this AD. 

FOR FURTHER INFORMATION CONTACT: Dan 

Rodina, Aerospace Engineer, 

International Branch, ANM–116, FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington 

98057–3356; telephone (425) 227–2125; 

fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Examining the Docket 

You may examine the airworthiness 

directive (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 street address stated in the 

ADDRESSES section. 

Discussion 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to all Empresa Brasileira de 

Aeronautica S.A. (EMBRAER) Model 

EMB–135BJ airplanes. That NPRM was 

published in the Federal Register on 

December 27, 2006 (71 FR 77629). That 

NPRM proposed to require modifying 

the forward and aft auxiliary fuel tanks. 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comments received. 

Request To Change Applicability 

Embraer states that the applicability 

in paragraph (c) of the NPRM specifies 

the following: ‘‘This AD applies to all 

EMBRAER Model EMB–135BJ airplanes, 

certificated in any category.’’ Embraer’s 

position is that the applicability 

statement would be better as follows: 

‘‘This AD applies to all EMBRAER 

Model EMB–135BJ airplanes, 

certificated in any category, as listed in 

Embraer Service Bulletin 145LEG–28–

0022, original issue, dated February 17, 

2005.’’

We agree with Embraer. We have 

determined that changing the 

applicability of the AD as the 


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16702 Federal Register / Vol. 72, No. 65 / Thursday, April 5, 2007 / Rules and Regulations 

commenter recommended would reduce 

the number of airplanes to specify only 

those that are affected by the AD 

requirements; we find that all Model 

EMB–135BJ airplanes are not affected. 

Therefore, we have changed paragraph 

(c) of this AD as follows: ‘‘This AD 

applies to EMBRAER Model EMB–135BJ 

airplanes, certificated in any category; 

as identified in Embraer Service 

Bulletin 145LEG–28–0022, dated 

February 17, 2005.’’

Request To Change Unsafe Condition 

Embraer states that paragraph (d) of 

the NPRM describes the unsafe 

condition as follows: ‘‘This AD results 

from a report of sparks due to chafing 

between the harnesses of the forward 

and aft auxiliary fuel tanks, between 

certain harnesses attached to the aircraft 

structure, or between certain harnesses 

attached to certain mechanical 

components. We are issuing this AD to 

prevent a potential ignition source 

inside a fuel tank, which, in 

combination with flammable fuel 

vapors, could result in a fuel tank 

explosion.’’ Embraer would like to 

clarify that no reports of sparks due to 

chafing between the harnesses of the 

forward and aft auxiliary fuel tanks 

were found in the field. Therefore, 

Embraer suggests that the FAA rewrite 

the unsafe condition as follows: ‘‘This 

AD results from a fuel system 

reassessment according to SFAR 88 

criteria, it has been found the possibility 

of sparks due to chafing between the 

harnesses of the forward and aft 

auxiliary fuel tanks, between certain 

harnesses attached to the aircraft 

structure, or between certain harnesses 

attached to certain mechanical 

components. We are issuing this AD to 

prevent a potential ignition source 

inside a fuel tank, which, in 

combination with flammable fuel 

vapors, could result in a fuel tank 

explosion.’’

We agree to rewrite certain language 

regarding the unsafe condition for the 

reason provided by Embraer; however, 

the language Embraer wants changed is 

not the unsafe condition, it is actually 

the reason that the unsafe condition 

occurred. We have changed the reason 

in the Summary section and paragraph 

(d) of this AD; in addition, we have 

clarified the language the commenter 

provided above as follows: ‘‘This AD 

results from a fuel system reassessment 

according to SFAR 88 criteria, which 

revealed the possibility of sparks due to 

chafing between the harnesses of the 

forward and aft auxiliary fuel tanks, 

between certain harnesses attached to 

the aircraft structure, or between certain 

harnesses attached to certain 

mechanical components.’’

Request for Clarification 

Embraer notes that paragraph (f)(1) of 

the NPRM states: ‘‘Modify the forward 

auxiliary fuel tanks.’’ Embraer would 

like to clarify that there are two forward 

auxiliary fuel tanks on the left and right 

sides. Embraer states that paragraph 

(f)(1) should be changed for 

clarification, as follows: ‘‘Modify the 

forward auxiliary fuel tanks on the left 

and right sides.’’ We agree with Embraer 

for the reason provided and have 

changed paragraph (f)(1) accordingly. 

Request To Refer to Revision 1 of 

Brazilian Airworthiness Directive 

2006–07–03 

Embraer notes that the Ageˆncia 

Nacional de Aviac ̧a ̃o Civil, which is the 

airworthiness authority for Brazil, has 

issued Brazilian airworthiness directive 

2006–07–03R1, effective January 4, 

2007. We infer that Embraer is asking 

that we refer to the revised Brazilian 

airworthiness directive in the AD. 

Revision 1 corrects the part numbers of 

some bonding jumpers, support 

assemblies, and transfer line tubes. We 

agree with Embraer and have revised 

paragraph (h) of this AD to refer to 

Revision 1 of the Brazilian 

airworthiness directive. 

Conclusion 

We have carefully reviewed the 

available data, including the comments 

received, and determined that air safety 

and the public interest require adopting 

the AD with the changes described 

previously. These changes will neither 

increase the economic burden on any 

operator nor increase the scope of the 

AD. 

Costs of Compliance 

This AD affects about 27 airplanes of 

U.S. registry. The modifications take 

about 20 work hours per airplane, at an 

average labor rate of $80 per work hour. 

Required parts cost $2,200 per airplane. 

Based on these figures, the estimated 

cost of the modifications for U.S. 

operators is $102,600, or $3,800 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 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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this 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, 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 Federal Aviation 

Administration (FAA) amends § 39.13 

by adding the following new 

airworthiness directive (AD): 

2007–07–14 Empresa Brasileira de 

Aeronautica S.A. (EMBRAER): 

Amendment 39–15015. Docket No. 

FAA–2006–26685; Directorate Identifier 

2006–NM–200–AD. 


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Federal Register / Vol. 72, No. 65 / Thursday, April 5, 2007 / Rules and Regulations 16703 

Effective Date 

(a) This AD becomes effective May 10, 

2007. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to EMBRAER Model 

EMB–135BJ airplanes, certificated in any 

category; as identified in Embraer Service 

Bulletin 145LEG–28–0022, dated February 

17, 2005. 

Unsafe Condition 

(d) This AD results from a fuel system 

reassessment according to SFAR 88 criteria, 

which revealed the possibility of sparks due 

to chafing between the harnesses of the 

forward and aft auxiliary fuel tanks, between 

certain harnesses attached to the aircraft 

structure, or between certain harnesses 

attached to certain mechanical components. 

We are issuing this AD to prevent a potential 

ignition source inside a fuel tank, which, in 

combination with flammable fuel vapors, 

could result in a fuel tank explosion. 

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. 

Modifications 

(f) Within 5,000 flight hours after the 

effective date of this AD: Accomplish the 

modifications specified in paragraphs (f)(1) 

and (f)(2) of this AD by doing all the 

applicable actions in accordance with the 

Accomplishment Instructions of EMBRAER 

Service Bulletin 145LEG–28–0022, dated 

February 17, 2005. 

(1) Modify the forward auxiliary fuel tanks 

on the left and right sides. 

(2) Modify the aft auxiliary fuel tanks on 

the left and right sides. 

Alternative Methods of Compliance 

(AMOCs) 

(g)(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 

(h) Brazilian airworthiness directive 2006–

07–03R1, effective January 4, 2007, also 

addresses the subject of this AD. 

Material Incorporated by Reference 

(i) You must use EMBRAER Service 

Bulletin 145LEG–28–0022, dated February 

17, 2005, to perform the actions that are 

required by this AD, unless the AD specifies 

otherwise. The Director of the Federal 

Register approved the incorporation by 

reference of this document in accordance 

with 5 U.S.C. 552(a) and 1 CFR part 51. 

Contact Empresa Brasileira de Aeronautica 

S.A. (EMBRAER), P.O. Box 343—CEP 12.225, 

Sao Jose dos Campos—SP, Brazil, for a copy 

of this service information. You may review 

copies 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/ 

cfr/ibr-locations.html. 

Issued in Renton, Washington, on March 

27, 2007. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E7–6230 Filed 4–4–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2006–25965; Directorate 

Identifier 2006–NM–127–AD; Amendment 

39–15013; AD 2007–07–08] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A300 B2 and B4 Series Airplanes 

Equipped With General Electric CF6–

50 Engines 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is superseding an 

existing airworthiness directive (AD), 

which applies to Airbus Model A300 B2 

and B4 series airplanes equipped with 

General Electric CF6–50 engines. That 

AD currently requires deactivating both 

thrust reversers and revising the 

airplane flight manual (AFM) to require 

performance penalties during certain 

takeoff conditions to ensure that safe 

and appropriate performance is 

achieved for airplanes on which both 

thrust reversers have been deactivated. 

This new AD requires one-time 

inspections of the directional pilot valve 

(DPV), the rocker arm and associated 

hardware, and corrective actions if 

necessary; reactivation of both thrust 

reversers; and repetitive inspections of 

the DPV and the associated control 

mechanism of the thrust reversers for 

incorrect assembly or excessive wear, 

and corrective actions if necessary. 

Accomplishing all of the actions would 

allow the removal of the AFM 

limitations in the existing AD. This AD 

results from reports indicating that the 

DPV was assembled incorrectly; further 

investigation revealed excessive wear on 

certain correctly assembled DPVs and 

the associated control mechanism. We 

are issuing this AD to prevent 

uncommanded in-flight deployment of a 

thrust reverser, which could result in 

reduced controllability of the airplane. 

DATES: This AD becomes effective May 

10, 2007. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of May 10, 2007. 

On May 6, 2002 (67 FR 21569, May 

1, 2002), the Director of the Federal 

Register approved the incorporation by 

reference of Airbus All Operators Telex 

A300/78A0023, dated April 5, 2002. 

ADDRESSES: You may examine the 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., Nassif Building, Room PL–401, 

Washington, DC. 

Contact Airbus, 1 Rond Point Maurice 

Bellonte, 31707 Blagnac Cedex, France, 

for service information identified in this 

AD. 

FOR FURTHER INFORMATION CONTACT: Tom 

Stafford, Aerospace Engineer, 

International Branch, ANM–116, FAA, 

International Branch, Transport 

Airplane Directorate, 1601 Lind 

Avenue, SW., Renton, Washington, 

98057–3356; telephone (425) 227–1622; 

fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Examining the Docket 

You may examine the airworthiness 

directive (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 street address stated in the 

ADDRESSES section. 

Discussion 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that 

supersedes AD 2002–08–51, amendment 

39–12728 (67 FR 21569, May 1, 2002). 

The existing AD applies to Airbus 

Model A300 B2 and B4 series airplanes 

equipped with General Electric CF6–50 

engines. That NPRM was published in 

the Federal Register on October 3, 2006 

(71 FR 58318). That NPRM proposed to 

continue to require deactivating both 

thrust reversers and revising the 

airplane flight manual (AFM) to require 

performance penalties during certain 

takeoff conditions to ensure that safe 


rwilkins on PROD1PC63 with RULES