Federal Register / Vol. 69, No. 217 / Wednesday, November 10, 2004 / Proposed Rules 65103

MLGs currently equipped with a 

swinging lever part number (P/N) 

D56771, we have determined that a 

swinging lever P/N D56771 could be 

installed in the future on an airplane not 

currently equipped with a lever having 

that part number. Therefore, this 

proposed AD would be applicable to all 

Model ATR 42–200, –300, and –320 

series airplanes and would prohibit 

installing a swinging lever having a 

subject P/N and serial number on any of 

these airplanes. 

Though French airworthiness 

directive 2003–376(B) specifies that 

operators shall report certain inspection 

findings to Messier-Dowty, this 

proposed AD would not require this. 

Though French airworthiness 

directive 2003–376(B) specifies that 

operators shall return swinging levers 

with applicable serial numbers to 

Messier-Dowty for discard, this 

proposed AD would not require this. 

Costs of Compliance 

This proposed AD would affect about 

24 airplanes of U.S. registry. The 

proposed inspection would take about 1 

work hour 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 

$1,560, or $65 per airplane. 

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):

Aerospatiale: Docket No. FAA–2004–19562; 

Directorate Identifier 2004–NM–73–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

must receive comments on this AD action by 

December 10, 2004. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to all Aerospatiale 

Model ATR 42–200, –300, and –320 series 

airplanes; certificated in any category. 

Unsafe Condition 

(d) This AD was prompted by a report that, 

on an airplane lined up for takeoff, the 

swinging lever of the left MLG collapsed 

when engine power was applied. We are 

issuing this AD to prevent fracture of the 

MLG swinging lever, which could result in 

collapse of the swinging lever and reduced 

structural integrity and possible collapse of 

the MLG during operations on the ground. 

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. 

Inspection To Determine Part and Serial 

Numbers 

(f) Within 30 days after the effective date 

of this AD, inspect to determine the part 

number (P/N) and serial number (S/N) of the 

swinging lever of the MLG. 

(1) If the P/N of the swinging lever is not 

D56771; or if the P/N of the swinging lever 

is D56771 but the S/N is not from 115 to 151 

inclusive; no further action is required by 

this paragraph. 

(2) If the P/N of the swinging lever is 

D56771 and the S/N is from 115 to 151 

inclusive, within 90 days after the effective 

date of this AD: Remove the swinging lever 

and replace it with a new or serviceable lever 

in accordance with Job Instruction Card 32–

11–00 RAI 10030–001, dated February 1, 

2000, to the Avions de Transport Regional 

Aircraft Maintenance Manual. 

No Reporting Requirement 

(g) Though French airworthiness directive 

2003–376(B), dated October 1, 2003, specifies 

that operators shall report certain inspection 

findings to Messier-Dowty, this AD does not 

require this. 

Disposition of Swinging Levers 

(h) Though French airworthiness directive 

2003–376(B), dated October 1, 2003, specifies 

that operators shall return swinging levers 

with applicable serial numbers to MessierDowty for discard, this AD does not require 

this. 

Parts Installation 

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

person may install on any airplane an MLG 

swinging lever, P/N D56771, having a S/N 

from 115 to 151 inclusive. 

Alternative Methods of Compliance 

(AMOCs) 

(j) 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. 

Related Information 

(k) French airworthiness directive 2003–

376(B), dated October 1, 2003, also addresses 

the subject of this AD.

Issued in Renton, Washington, on 

November 1, 2004. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service.

[FR Doc. 04–25032 Filed 11–9–04; 8:45 am] 

BILLING CODE 4910–13–P

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2004–19561; Directorate 

Identifier 2004–NM–50–AD] 

RIN 2120–AA64 

Airworthiness Directives; Raytheon 

Model DH.125, HS.125, and BH.125 

Series Airplanes; BAe.125 Series 800A 

(C–29A and U–125) and 800B 

Airplanes; and Hawker 800 (Including 

Variant U–125A) and 800XP Airplanes; 

Equipped With TFE731 Engines

AGENCY: Federal Aviation 

Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Raytheon Model DH.125, 

HS.125, and BH.125 series airplanes; 

BAe.125 series 800A (C–29A and U–

125) and 800B airplanes; and Hawker 

800 (including variant U–125A) and 

800XP airplanes. This proposed AD 

would require installing insulating 

blankets on the engine compartment 

firewall and the wire harness passing 

65104 Federal Register / Vol. 69, No. 217 / Wednesday, November 10, 2004 / Proposed Rules 

through the firewall fairlead. This 

proposed AD is prompted by a report 

indicating that insulation on the wire 

harness passing through the firewall 

fairlead ignited on the fuselage side of 

the firewall. We are proposing this AD 

to prevent a fire in the engine 

compartment from causing possible 

ignition of outgassing wire insulation on 

the fuselage side of the firewall, which 

could lead to an uncontrollable fire in 

the fuselage.

DATES: We must receive comments on 

this proposed AD by December 27, 

2004.

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. 

• 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 Raytheon 

Aircraft Company, Department 62, PO 

Box 85, Wichita, Kansas 67201–0085. 

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–2004–

19561; the directorate identifier for this 

docket is 2004–NM–50–AD.

FOR FURTHER INFORMATION CONTACT:

Technical information: Jeff Pretz, 

Aerospace Engineer, Airframe Branch, 

ACE–118W, FAA, Wichita Aircraft 

Certification Office, 1801 Airport Road, 

room 100, Mid-Continent Airport, 

Wichita, Kansas 67209; telephone (316) 

946–4153; fax (316) 946–4407. 

Plain language information: Marcia 

Walters, marcia.walters@faa.gov.

SUPPLEMENTARY INFORMATION: 

Docket Management System (DMS) 

The FAA has implemented new 

procedures for maintaining AD dockets 

electronically. As of May 17, 2004, new 

AD actions are posted on DMS and 

assigned a docket number. We track 

each action and assign a corresponding 

directorate identifier. The DMS AD 

docket number is in the form ‘‘Docket 

No. FAA–2004–99999.’’ The Transport 

Airplane Directorate identifier is in the 

form ‘‘Directorate Identifier 2004–NM–

999–AD.’’ Each DMS AD docket also 

lists the directorate identifier (‘‘Old 

Docket Number’’) as a cross-reference 

for searching purposes. 

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–

2004–19561; Directorate Identifier 

2004–NM–50–AD’’ in the subject line 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 that 

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 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.

We are reviewing the writing style we 

currently use in regulatory documents. 

We are interested in your comments on 

whether the style of this document is 

clear, and your suggestions to improve 

the clarity of our communications that 

affect you. You can get more 

information about plain language at 

http://www.faa.gov/language and http://

www.plainlanguage.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 

We have received a report indicating 

that during certification testing of a new 

firewall fairlead material, insulation on 

the wire harness passing through the 

laboratory test firewall fairlead ignited 

on the fuselage side of the firewall. The 

configuration of the test firewall and 

wire harness was similar to the 

configuration of the firewall and wire 

harness found on certain Raytheon 

Model DH.125, HS.125, and BH.125 

series airplanes; BAe.125 series 800A 

(C–29A and U–125), and 800B 

airplanes; and Hawker 800 (including 

variant U–125A) and 800XP airplanes; 

equipped with TFE731 engines. This 

condition, if not corrected, could result 

in a fire in the engine compartment 

causing possible ignition of outgassing 

wire insulation on the fuselage side of 

the firewall, which could lead to an 

uncontrollable fire in the fuselage. 

Relevant Service Information 

We have reviewed Raytheon Service 

Bulletin SB 26–3496, dated November 

2003. The service bulletin describes 

procedures for installing insulating 

blankets on the engine compartment 

firewall and the wire harness passing 

through the firewall fairlead. 

Accomplishing the actions specified in 

the service information is intended to 

adequately address the unsafe 

condition. 

FAA’s Determination and Requirements 

of the Proposed AD 

We have evaluated all pertinent 

information and identified an unsafe 

condition that is likely to exist or 

develop on other airplanes of this same 

type design. Therefore, we are 

proposing this AD, which would require 

accomplishing the actions specified in 

the service information described 

previously, except as discussed under 

‘‘Differences Between the Proposed AD 

and Service Bulletin.’’

Differences Between the Proposed AD 

and Service Bulletin 

The service bulletin describes 

procedures for reporting 

accomplishment of the service bulletin 

to the manufacturer; however, this 

proposed AD would not require that 

action. 

Costs of Compliance 

There are about 804 airplanes of the 

affected design in the worldwide fleet. 

This proposed AD would affect about 

530 airplanes of U.S. registry. The 

proposed actions would take about 8 

Federal Register / Vol. 69, No. 217 / Wednesday, November 10, 2004 / Proposed Rules 65105

work hours per airplane, at an average 

labor rate of $65 per work hour. 

Required parts would cost about $1,784 

per airplane. Based on these figures, the 

estimated cost of the proposed AD for 

U.S. operators is $1,221,120, or $2,304 

per airplane. 

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):

Raytheon Aircraft Company: Docket No. 

FAA–2004–19561; Directorate Identifier 

2004–NM–50–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

(FAA) must receive comments on this AD 

action by December 27, 2004. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Raytheon Model 

DH.125, HS.125, and BH.125 series airplanes; 

BAe.125 series 800A (C–29A and U–125) and 

800B airplanes; and Hawker 800 (including 

variant U–125A) and 800XP airplanes; 

certificated in any category; equipped with 

TFE731 engines; as listed in Raytheon 

Service Bulletin SB 26–3496, dated 

November 2003. 

Unsafe Condition 

(d) This AD was prompted by a report 

indicating that insulation on the wire harness 

passing through the firewall fairlead ignited 

on the fuselage side of the firewall. We are 

issuing this AD to prevent a fire in the engine 

compartment from causing possible ignition 

of outgassing wire insulation on the fuselage 

side of the firewall, which could lead to an 

uncontrollable fire in the fuselage. 

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. 

Installation of Insulating Blankets 

(f) Within 12 months after the effective 

date of this AD, install insulating blankets on 

the engine compartment firewall and the 

wire harness passing through the firewall 

fairlead, by doing all the actions in 

accordance with the Accomplishment 

Instructions of Raytheon Service Bulletin SB 

26–3496, dated November 2003. 

No Reporting Requirement 

The service bulletin describes procedures 

for reporting accomplishment of the service 

bulletin to the manufacturer; however, this 

AD does not require that action. 

Alternative Methods of Compliance 

(AMOCs) 

(g) The Manager, Wichita Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested in accordance with the procedures 

found in 14 CFR 39.19.

Issued in Renton, Washington, on 

November 1, 2004. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service.

[FR Doc. 04–25033 Filed 11–9–04; 8:45 am] 

BILLING CODE 4910–13–P

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration 

14 CFR Part 39

[Docket No. FAA–2004–19564; Directorate 

Identifier 2004–NM–103–AD] 

RIN 2120–AA64

Airworthiness Directives; Gulfstream 

Aerospace LP Model Galaxy and 

Gulfstream 200 Airplanes

AGENCY: Federal Aviation 

Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Gulfstream Aerospace LP Model 

Galaxy and Gulfstream 200 airplanes. 

This proposed AD would require 

repetitive inspections for damage of the 

flexible supply lines of the pilot and 

copilot oxygen mask boxes, and 

eventual replacement of the lines with 

new rigid tubes. This proposed AD is 

prompted by a report of an oxygen leak 

in the cockpit mask box. We are 

proposing this AD to prevent a broken 

oxygen supply line, which could result 

in oxygen being unavailable to the 

flightcrew.

DATES: We must receive comments on 

this proposed AD by December 10, 

2004.

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. 

• 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, PO Box 2206, 

Mail Station D–25, Savannah, Georgia 

31402. 

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