This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

6618 

Vol. 73, No. 24 

Tuesday, February 5, 2008 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–0116; Directorate 

Identifier 2007–NM–257–AD] 

RIN 2120–AA64 

Airworthiness Directives; Dassault 

Model Falcon 2000 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for the 

products listed above. This proposed 

AD results from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

Wing anti ice telescopic tubes (P/N [part 

number] 5035–400 and 5035–500) ball joints 

were originally designed with high 

temperature polymer (Kynel TM) sealing rings. 

Temperature induced cracking of these rings 

associated with long term wear has been 

encountered in a small number of cases. This 

degradation may lead to binding of the ball 

joint and high swiveling forces which may 

result in improper operation of the leading 

edge slats and also in failure of the ball joint 

mounting bracket with possible friction on 

the aileron control rod, which could lead, if 

combined with a failure of the aileron 

emergency actuator, to an aileron jamming. 

The unsafe condition is a jammed 

aileron, which results in reduced 

controllability of the airplane. The 

proposed AD would require actions that 

are intended to address the unsafe 

condition described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by March 6, 2008. 

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 

W12–40, 1200 New Jersey Avenue, SE., 

Washington, DC, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Operations 

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: Tom 

Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1137; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2008–0116; Directorate Identifier 

2007–NM–257–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD based on those comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA 

Airworthiness Directive 2006–0276, 

dated September 6, 2006 (referred to 

after this as ‘‘the MCAI’’), to correct an 

unsafe condition for the specified 

products. The MCAI states: 

Wing anti ice telescopic tubes (P/N [part 

number] 5035–400 and 5035–500) ball joints 

were originally designed with high 

temperature polymer (Kynel TM) sealing rings. 

Temperature induced cracking of these rings 

associated with long term wear has been 

encountered in a small number of cases. This 

degradation may lead to binding of the ball 

joint and high swiveling forces which may 

result in improper operation of the leading 

edge slats and also in failure of the ball joint 

mounting bracket with possible friction on 

the aileron control rod, which could lead, if 

combined with a failure of the aileron 

emergency actuator, to an aileron jamming. 

A replacement carbon based material has 

been defined by the telescopic tube 

manufacturer Zodiac and can be applied per 

Zodiac Service bulletins (SB) 5035–30–001 

and 5035–30–002, resulting in P/N redesignations 5035–600 Amdt.A and 5035– 

700 Amdt.A, respectively. 

The purpose of this Airworthiness 

Directive (AD), by requiring modification of 

the wing anti-ice telescopic tubes in 

accordance with the Zodiac service bulletins, 

is to ensure that no old definition sealing 

rings remain in operation beyond a life limit 

of 2,400 flight hours (FH) or 2,000 flight 

cycles (FC). 

The unsafe condition is a jammed 

aileron, which results in reduced 

controllability of the airplane. You may 

obtain further information by examining 

the MCAI in the AD docket. 

Relevant Service Information 

Zodiac has issued Service Bulletins 

5035–30–001 and 5035–30–002, both 

dated April 15, 2002. The actions 

described in this service information are 

intended to correct the unsafe condition 

identified in the MCAI. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 


rmajette on PROD1PC64 with PROPOSALS
Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules 6619 

referenced above. We are proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Differences Between This AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have proposed 

different actions in this AD from those 

in the MCAI in order to follow FAA 

policies. Any such differences are 

highlighted in a NOTE within the 

proposed AD. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 159 products of U.S. 

registry. We also estimate that it would 

take about 4 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $80 per work-hour. Required 

parts would cost about $1,423 per 

product. Where the service information 

lists required parts costs that are 

covered under warranty, we have 

assumed that there will be no charge for 

these costs. As we do not control 

warranty coverage for affected parties, 

some parties may incur costs higher 

than estimated here. Based on these 

figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$277,137, or $1,743 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 

We 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 this 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. 

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 AD: 

Dassault Aviation: Docket No. FAA–2008–

0116; Directorate Identifier 2007–NM–

257–AD. 

Comments Due Date 

(a) We must receive comments by March 6, 

2008. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Dassault Model 

Falcon 2000 airplanes, certificated in any 

category; all serial numbers; equipped with 

wing anti-ice telescopic tubes having part 

number (P/N) 5035–400 or 5035–500. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 30: Ice and rain protection. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

Wing anti ice telescopic tubes (P/N [part 

number] 5035–400 and 5035–500) ball joints 

were originally designed with high 

temperature polymer (Kynel TM) sealing rings. 

Temperature induced cracking of these rings 

associated with long term wear has been 

encountered in a small number of cases. This 

degradation may lead to binding of the ball 

joint and high swiveling forces which may 

result in improper operation of the leading 

edge slats and also in failure of the ball joint 

mounting bracket with possible friction on 

the aileron control rod, which could lead, if 

combined with a failure of the aileron 

emergency actuator, to an aileron jamming. 

A replacement carbon based material has 

been defined by the telescopic tube 

manufacturer Zodiac and can be applied per 

Zodiac Service bulletins (SB) 5035–30–001 

and 5035–30–002, resulting in P/N redesignations 5035–600 Amdt.A and 5035–

700 Amdt.A, respectively. 

The purpose of this Airworthiness 

Directive (AD), by requiring modification of 

the wing anti-ice telescopic tubes in 

accordance with the Zodiac service bulletins, 

is to ensure that no old definition sealing 

rings remain in operation beyond a life limit 

of 2,400 flight hours (FH) or 2,000 flight 

cycles (FC). 

The unsafe condition is a jammed aileron, 

which results in reduced controllability of 

the airplane. 

Actions and Compliance 

(f) Unless already done, do the following 

actions. 

(1) At the later of the compliance times 

specified in paragraphs (f)(1)(i) and (f)(1)(ii) 

of this AD, remove and modify the affected 

tubes in accordance with instructions 

contained in Zodiac Service Bulletins 5035–

30–001 and 5035–30–002, both dated April 

15, 2002. 

(i) Before the telescopic tubes, P/N 5035–

400 and 5035–500, exceed the limit of 2,400 

flight hours, or 2,000 flight cycles, time-inservice since new, whichever occurs first. 

(ii) At the earlier of the times specified in 

paragraphs (f)(1)(ii)(A) and (f)(1)(ii)(B) of this 

AD. 

(A) Within 330 flight hours after the 

effective date of this AD. 

(B) Within 7 months after the effective date 

of this AD. 

(2) As of 7 months after the effective date 

of this AD, no person may install an affected 

telescopic tube P/N 5035–400 or 5035–500 in 

any aircraft as a replacement part, unless it 

has been modified in accordance with 

instructions contained in Zodiac Service 

Bulletins 5035–30–001 and 5035–30–002, 

both dated April 15, 2002. 

FAA AD Differences 

Note: This AD differs from the MCAI and/ 

or service information as follows: No 

differences. 


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6620 Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules 

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, Transport Airplane 

Directorate, 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: Tom Rodriguez, 

Aerospace Engineer, International Branch, 

ANM–116, Transport Airplane Directorate, 

FAA, 1601 Lind Avenue SW., Renton, 

Washington 98057–3356; telephone (425) 

227–1137; fax (425) 227–1149. 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. 

(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 FAAapproved 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 European Aviation 

Safety Agency (EASA) Airworthiness 

Directive 2006–0276, dated September 6, 

2006; and Zodiac Service Bulletins 5035–30–

001 and 5035–30–002, both dated April 15, 

2002; for related information. 

Issued in Renton, Washington, on January 

24, 2008. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E8–1984 Filed 2–4–08; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–0118; Directorate 

Identifier 2007–NM–289–AD] 

RIN 2120–AA64 

Airworthiness Directives; Dassault 

Model Mystere-Falcon 50 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for the 

products listed above. This proposed 

AD results from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

This Airworthiness Directive (AD) is 

issued following the discovery of a risk of 

chafing between an electrical feeder bundle 

and a bus bar under the circuit breaker panel. 

Most of the time, this possible chafing would 

be dormant and would lead to an uneventful 

loss of segregation within the different 

electrical system components. However, 

missing segregation combined with 

additional electrical failures may impair 

flight safety. 

* * * * * 

Chafing between an electrical feeder 

bundle and a bus bar under the circuit 

breaker panel could lead to electrical 

arcing, which could result in smoke and 

fire in the cockpit. The proposed AD 

would require actions that are intended 

to address the unsafe condition 

described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by March 6, 2008. 

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 

W12–40, 1200 New Jersey Avenue, SE., 

Washington, DC, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Operations 

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: Tom 

Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington 

98057–3356; telephone (425) 227–1137; 

fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2008–0118; Directorate Identifier 

2007–NM–289–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD based on those comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued Airworthiness 

Directive 2007–0175, dated June 28, 

2007 (referred to after this as ‘‘the 

MCAI’’), to correct an unsafe condition 

for the specified products. The MCAI 

states: 

This Airworthiness Directive (AD) is 

issued following the discovery of a risk of 

chafing between an electrical feeder bundle 

and a bus bar under the circuit breaker panel. 

Most of the time, this possible chafing would 

be dormant and would lead to an uneventful 

loss of segregation within the different 

electrical system components. However, 

missing segregation combined with 

additional electrical failures may impair 

flight safety. 

This AD mandates inspection of the 

electrical feeder bundle, and modification of 

its routing under the circuit breaker panel 

through implementation of modification 

M3093. 

Chafing between an electrical feeder 

bundle and a bus bar under the circuit 

breaker panel could lead to electrical 

arcing, which could result in smoke and 

fire in the cockpit. 

The corrective action includes 

repairing or replacing damaged wiring; 

re-routing the feeder cables above the 

wiring of the ‘‘Avionic Master’’ and 

‘‘Aux Bat’’ relays; installing a protective 

sheath on the feeder cables; adding 

spacers to separate the bus bar wiring 

assemblies from the feeder cables; and 

adding Teflon protection on the feeder 

cables and securing the feeder cables 


rmajette on PROD1PC64 with PROPOSALS