Federal Register / Vol. 70, No. 185 / Monday, September 26, 2005 / Proposed Rules 56143 

Note 2: If wear is present in the B area only 

as depicted in Figure 1, replacing the MGB 

and the pump is not required. 

(e) Before installing a different MGB or a 

pump with any TIS, accomplish the 

requirements of paragraph (a) of this AD. 

(f) To request a different method of 

compliance or a different compliance time 

for this AD, follow the procedures in 14 CFR 

39.19. Contact the Safety Management Group, 

Rotorcraft Directorate, FAA, for information 

about previously approved alternative 

methods of compliance. 

Note 3: The subject of this AD is addressed 

in Direction Generale De L’Aviation Civile 

(France) AD 2002–331–071 R2, dated 

November 24, 2004. 

Issued in Fort Worth, Texas, on September 

13, 2005. 

S. Frances Cox, 

Acting Manager, Rotorcraft Directorate, 

Aircraft Certification Service. 

[FR Doc. 05–19148 Filed 9–23–05; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2005–22511; Directorate 

Identifier 2005–NM–120–AD] 

RIN 2120–AA64 

Airworthiness Directives; Gulfstream 

Aerospace LP Model Gulfstream 100 

Airplanes; and Model Astra SPX, and 

1125 Westwind Astra 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 Gulfstream Aerospace LP Model 

Gulfstream 100 airplanes; and Model 

Astra SPX, and 1125 Westwind Astra 

airplanes. This proposed AD would 

require a one-time inspection for 

discrepancies of the nose wheel steering 

assembly of the landing gear, installing 

a warning placard on each nose landing 

gear door, and corrective action if 

necessary. This proposed AD is 

prompted by reports of failure of the 

steering brackets of the nose wheel 

steering assembly, and in one incident, 

loss of steering control. We are 

proposing this AD to find and fix these 

discrepancies, which could result in 

loss of steering control and consequent 

reduced controllability of the airplane. 

DATES: We must receive comments on 

this proposed AD by October 26, 2005. 

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. 


EP26SE05.021</GPH>
56144 Federal Register / Vol. 70, No. 185 / Monday, September 26, 2005 / Proposed Rules 

• Mail: Docket Management Facility, 

U.S. Department of Transportation, 400 

Seventh Street SW, Nassif Building, 

room PL–401, Washington, DC 20590. 

• By 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. 

For service information identified in 

this proposed AD, contact Gulfstream 

Aerospace Corporation, P.O. Box 2206, 

Mail Station D–25, Savannah, Georgia 

31402–2206. 

You can examine the contents of this 

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., room PL–401, on the plaza level of 

the Nassif Building, Washington, DC. 

This docket number is FAA–2005–

22511; the directorate identifier for this 

docket is 2005–NM–120–AD. 

FOR FURTHER INFORMATION CONTACT: 

Mike Borfitz, Aerospace Engineer, 

International Branch, ANM–116, FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington 

98055–4056; telephone (425) 227–2677; 

fax (425) 227–1149. 

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 under 

ADDRESSES. Include ‘‘Docket No. FAA–

2005–22511; Directorate Identifier 

2005–NM–120–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 submitted 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 our docket 

website, 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 can 

review the DOT’s complete Privacy Act 

Statement in the Federal Register 

published on April 11, 2000 (65 FR 

19477–78), or you can visit http:// 

dms.dot.gov. 

Examining the Docket 

You can 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 DMS 

receives them. 

Discussion 

The Civil Aviation Administration of 

Israel (CAAI), which is the 

airworthiness authority for Israel, 

notified us that an unsafe condition may 

exist on certain Gulfstream Aerospace 

LP Model Gulfstream 100 airplanes; and 

Model Astra SPX, and 1125 Westwind 

Astra series airplanes. The CAAI advises 

that three operators reported failure of 

the steering brackets of the nose wheel 

steering assembly of the landing gear, 

and in one incident, loss of steering 

control. Evaluation of the steering 

brackets revealed that the probable 

cause of these failures is excessive 

torsional forces applied to the steering 

assembly, which can be caused during 

towing operation of the airplane with 

the torque links connected. Subsequent 

to the original reports, similar 

conditions have been found on other 

airplanes. This condition, if not 

corrected, could result in loss of steering 

control and consequent reduced 

controllability of the airplane. 

Relevant Service Information 

Gulfstream Aerospace LP has issued 

Alert Service Bulletin 100–32A–275, 

Revision 1, dated December 24, 2003. 

The service bulletin describes 

procedures for a nondestructive test 

inspection for discrepancies of the nose 

wheel steering assembly of the landing 

gear, and corrective action if necessary. 

The discrepancies include cracking of 

the upper and lower steering brackets 

and lack of rotation of the centering 

spring. The corrective action involves 

replacing both the upper and lower 

brackets if either bracket is cracked; 

applying silicone grease to the centering 

spring mounting shaft and steering 

bracket mounting hole; and torqueing 

the nut and verifying free rotation of the 

centering spring. If no cracking is found, 

free rotation of the centering spring 

must be verified before reconnecting the 

spring; if the centering spring does not 

rotate, the nut must be backed off until 

free rotation is obtained. 

Gulfstream Aerospace LP has also 

issued Service Bulletin 1125–11–181, 

Revision 1, dated December 24, 2003. 

The service bulletin describes 

procedures for installing a warning 

placard on the outside of each nose 

landing gear door that cautions ground 

handling crews to use proper towing 

methods. 

Accomplishing the actions specified 

in the service information is intended to 

adequately address the unsafe 

condition. 

The CAAI mandated the service 

information and issued Israeli 

airworthiness directives 32–03–10–05 

R1, dated February 8, 2004; and 32–03–

12–09, dated February 5, 2004, to ensure 

the continued airworthiness of these 

airplanes in Israel. 

FAA’s Determination and Requirements 

of the Proposed AD 

These airplane models are 

manufactured in Israel and are type 

certificated for operation in the United 

States under the provisions of section 

21.29 of the Federal Aviation 

Regulations (14 CFR 21.29) and the 

applicable bilateral airworthiness 

agreement. Pursuant to this bilateral 

airworthiness agreement, the CAAI has 

kept the FAA informed of the situation 

described above. We have examined the 

CAAI’s findings, evaluated all pertinent 

information, and determined that we 

need to issue an AD for products of this 

type design that are certificated for 

operation in the United States. 

Therefore, we are proposing this AD, 

which would require accomplishing the 

actions specified in the service 

information described previously, 

except as discussed under ‘‘Differences 

Among the Proposed AD, Service 

Bulletins, and Israeli Airworthiness 

Directives.’’

Differences Among the Proposed AD, 

Service Bulletins, and Israeli 

Airworthiness Directives 

The applicability of Israeli 

airworthiness directive 32–03–10–05 R1 

identifies Model Gulfstream 100 

airplanes; Model Astra SPX and 1125 

Westwind Astra airplanes with serial 

numbers 004, 011 through 147 

inclusive, and 149. That airworthiness 

directive requires a one-time inspection 

for discrepancies of the nose wheel 

steering assembly of the landing gear. 

The applicability of Israeli 

airworthiness directive 32–03–12–09 

identifies Model Astra SPX and 1125 

Westwind Astra with serial numbers 

004 through 110 inclusive. That 

airworthiness directive requires 

installation of warning placards. We 

have expanded the applicability in this 

Federal Register / Vol. 70, No. 185 / Monday, September 26, 2005 / Proposed Rules 56145 

proposed AD to require that all those 

airplanes accomplish all the required 

actions. This requirement would ensure 

that the actions specified in both of the 

Israeli airworthiness directives, and 

required by this proposed AD, are 

accomplished on all affected airplanes. 

This difference has been coordinated 

with the CAAI. 

Operators should note that, although 

the Accomplishment Instructions of the 

referenced service bulletins describe 

procedures for submitting a service 

reply card, this proposed AD would not 

require that action. We do not need this 

information from operators. 

Costs of Compliance 

This proposed AD would affect about 

106 airplanes of U.S. registry. The 

proposed inspection would take about 8 

work hours per airplane, at an average 

labor rate of $65 per work hour. Based 

on these figures, the estimated cost of 

the proposed AD for U.S. operators is 

$55,120, or $520 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. 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. 

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 airworthiness 

directive (AD): 

Gulfstream Aerospace LP (Formerly Israel 

Aircraft Industries, Ltd.): Docket No. 

FAA–2005–22511; Directorate Identifier 

2005–NM–120–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

must receive comments on this AD action by 

October 26, 2005. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Gulfstream 

Aerospace LP Model Gulfstream 100 

airplanes; and Model Astra SPX, and 1125 

Westwind Astra airplanes; certificated in any 

category; as identified in Gulfstream Alert 

Service Bulletin 100–32A–275, and 

Gulfstream Service Bulletin 1125–11–181, 

both Revision 1, both dated December 24, 

2003. 

Unsafe Condition 

(d) This AD was prompted by reports of 

failure of the steering brackets of the nose 

wheel steering assembly of the landing gear, 

and in one incident, loss of steering control. 

We are issuing this AD to find and fix 

discrepancies of the nose wheel steering 

assembly which could result in loss of 

steering control and consequent reduced 

controllability 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. 

One-Time Inspection/Corrective Action 

(f) Within 50 flight hours or 25 landings 

after the effective date of this AD, whichever 

is first: Perform a one-time non-destructive 

test inspection for discrepancies of the nose 

wheel steering assembly, install a warning 

placard on each nose landing gear door, and 

do any applicable corrective action, by 

accomplishing all the actions specified in the 

Accomplishment Instructions of Gulfstream 

Alert Service Bulletin 100–32A–275, and 

Gulfstream Service Bulletin 1125–11–181, 

both Revision 1, both dated December 24, 

2003. Any applicable corrective action must 

be accomplished before further flight in 

accordance with Alert Service Bulletin 100–

32A–275. Although the service bulletins 

specify to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

Alternative Methods of Compliance 

(AMOCs) 

(g) The Manager, International Branch, 

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. 

Related Information 

(h) Israeli airworthiness directives 32–03–

10–05 R1, effective February 8, 2004, and 32–

03–12–09, effective February 5, 2004, also 

address the subject of this AD. 

Issued in Renton, Washington, on 

September 16, 2005. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 05–19141 Filed 9–23–05; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2005–22510; Directorate 

Identifier 2004–NM–32–AD] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 747 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede two existing airworthiness 

directives (ADs), one AD applicable to 

all Boeing Model 747 airplanes and the 

other AD applicable to certain Boeing 

Model 747 airplanes. The first AD 

currently requires repetitive inspections 

for cracking of the upper skin of the