Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules 6627 

that PSE inspection. The compliance time for 

accomplishing this inspection must be 

measured from the last inspection done by 

the previous operator. After each inspection 

has been done once, each subsequent 

inspection must be done in accordance with 

the new operator’s schedule and inspection 

method. 

(2) For airplanes that have not been 

inspected in accordance with this AD: The 

inspection of each PSE required by this AD 

must be done either before adding the 

airplane to the air carrier’s operations 

specification, or in accordance with a 

schedule and an inspection method approved 

by the Manager, Los Angeles ACO. After each 

inspection has been done once, each 

subsequent inspection must be done in 

accordance with the new operator’s schedule. 

Acceptable for Compliance 

(n) McDonnell Douglas Report No. MDC 

91K0262, ‘‘DC–8 Aging Aircraft Repair 

Assessment Program Document,’’ Revision 1, 

dated October 2000, provides inspection/ 

replacement programs for certain repairs to 

the fuselage pressure shell. Accomplishing 

these repairs and inspection/replacement 

programs before the effective date of this AD 

is considered acceptable for compliance with 

the requirements of paragraphs (g) and (l) of 

this AD for repairs subject to that document. 

Alternative Methods of Compliance 

(AMOCs) 

(o)(1) The Manager, Los Angeles ACO, has 

the authority to approve AMOCs for this AD, 

if requested in accordance with the 

procedures found in 14 CFR 39.19. 

(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 appropriate principal inspector 

(PI) in the FAA Flight Standards District 

Office (FSDO), or lacking a PI, your local 

FSDO. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD, if it is approved by an 

Authorized Representative for the Boeing 

Commercial Airplanes Delegation Option 

Authorization Organization who has been 

authorized by the Manager, Los Angeles 

ACO, to make those findings. For a repair 

method to be approved, the repair must meet 

the certification basis of the airplane and 14 

CFR 25.571, Amendment 45, and the 

approval must specifically refer to this AD. 

(4) AMOCs approved previously in 

accordance with AD 93–01–15 are approved 

as AMOCs for the corresponding provisions 

of this AD. 

Issued in Renton, Washington, on January 

24, 2008. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E8–1989 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–2008–0120; Directorate 

Identifier 2007–NM–327–AD] 

RIN 2120–AA64 

Airworthiness Directives; Gulfstream 

Aerospace LP Model Gulfstream G150 

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: 

Possible chafing between [the] electrical 

feeder cable connected to contactor 123P/2 

and ground point 803GND, installed within 

the left DC power box, discovered during 

routine receiving inspection. This condition 

may exist on boxes installed on in-service 

aircraft. If this chafing condition is left 

unattended, an electrical short may develop, 

leading to disconnection of the battery and 

battery bus from the electrical system of the 

aircraft, [which could result in] overheating, 

arcing, smoke and fire. 

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: 

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. 

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–2008–0120; Directorate Identifier 

2007–NM–327–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 Civil Aviation Authority of Israel 

(CAAI), which is the aviation authority 

for Israel, has issued Israeli 

Airworthiness Directive 24–07–10–11, 

dated October 31, 2007 (referred to after 

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

condition for the specified products. 

The MCAI states: 

Possible chafing between [the] electrical 

feeder cable connected to contactor 123P/2 

and ground point 803GND, installed within 

the left DC power box, discovered during 

routine receiving inspection. This condition 

may exist on boxes installed on in-service 

aircraft. If this chafing condition is left 

unattended, an electrical short may develop, 

leading to disconnection of the battery and 

battery bus from the electrical system of the 

aircraft, [which could result in] overheating, 

arcing, smoke and fire. 

The corrective action includes 

inspecting for chafing and arcing 

damage of the feeder cable terminal lug 

and ground point, contacting Gulfstream 

for repair if any damage is found, and 


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6628 Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules 

repairing, and installing new heatshrink tubing if the tubing is missing or 

damaged, and repositioning the feeder 

cable. You may obtain further 

information by examining the MCAI in 

the AD docket. 

Relevant Service Information 

Gulfstream has issued Alert Service 

Bulletin 150–24A–046, dated October 

31, 2007. 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 

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 26 products of U.S. registry. 

We also estimate that it would take 

about 3 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 $0 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 $6,240, or $240 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: 

Gulfstream Aerospace LP (Formerly Israel 

Aircraft Industries, Ltd.): Docket No. 

FAA–2008–0120; Directorate Identifier 

2007–NM–327–AD. 

Comments Due Date 

(a) We must receive comments by March 6, 

2008. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Gulfstream Model 

Gulfstream G150 airplanes, certificated in 

any category, serial numbers 201 through 239 

inclusive. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 24: Electrical power. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

‘‘Possible chafing between [the] electrical 

feeder cable connected to contactor 123P/2 

and ground point 803GND, installed within 

the left DC power box, discovered during 

routine receiving inspection. This condition 

may exist on boxes installed on in-service 

aircraft. If this chafing condition is left 

unattended, an electrical short may develop, 

leading to disconnection of the battery and 

battery bus from the electrical system of the 

aircraft, [which could result in] overheating, 

arcing, smoke and fire.’’

The corrective action includes inspecting 

for chafing and arcing damage of the feeder 

cable terminal lug and ground point, 

contacting Gulfstream for repair if any 

damage is found, and repairing, and 

installing new heat-shrink tubing if the 

tubing is missing or damaged, and 

repositioning the feeder cable. 

Actions and Compliance 

(f) Unless already done, do the following 

actions. Within 50 flight hours or 30 days 

after the effective date of this AD, whichever 

occurs first, inspect the feeder cable, terminal 

lug 123P/2, and ground point 803GND for 

chafing and arcing damage, reposition the 

feeder cable to maintain an adequate gap, and 

do all applicable corrective actions. Do the 

actions in accordance with Gulfstream Alert 

Service Bulletin 150–24A–046, dated October 

31, 2007. Do all applicable corrective actions 

before further flight. 

FAA AD Differences 

Note: This AD differs from the MCAI and/ 

or service information as follows: No 

differences. 


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Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules 6629 

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: 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 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 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 CAAI Airworthiness 

Directive 24–07–10–11, dated October 31, 

2007, and Gulfstream Alert Service Bulletin 

150–24A–046, dated October 31, 2007, for 

related information. 

Issued in Renton, Washington, on January 

24, 2008. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E8–1988 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–2008–0117; Directorate 

Identifier 2007–NM–273–AD] 

RIN 2120–AA64 

Airworthiness Directives; Fokker 

Model F.28 Mark 0070 and Mark 0100 

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: 

[L]eakage of hot wing anti-icing air from 

the Peri-seal housing. This results in an 

uncontrolled flow of high-pressure hot air to 

enter the forward (anti-icing) plenum 

chamber of the wing leading edge, potentially 

damaging the anti-icing barrier webs. 

Subsequently, the wing auxiliary spar can 

also be damaged by high-pressure hot air. 

* * * [D]eterioration of the Peri-seals 

enables the piccolo tubes to vibrate, resulting 

in a broken piccolo tube. This condition, if 

not corrected, may cause heat damage to the 

front spar that potentially affects the wing’s 

load capability. 

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–2008–0117; Directorate Identifier 

2007–NM–273–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 2007–0229, 

dated August 15, 2007 (referred to after 

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

condition for the specified products. 

The MCAI states: 

In 1997, Fokker introduced a new type of 

Peri-seal (SBF 100–30–022). The old type 

was known to be subject to deterioration, 

which, in combination with improper 

installation, can cause leakage of hot wing 

anti-icing air from the Peri-seal housing. This 

results in an uncontrolled flow of highpressure hot air to enter the forward (antiicing) plenum chamber of the wing leading 

edge, potentially damaging the anti-icing 

barrier webs. Subsequently, the wing 

auxiliary spar can also be damaged by highpressure hot air. Analysis at the time showed 

that any resulting damage (known to occur at 

inboard positions only) would not affect the 

wing load capability. For this reason, the 

modification was not classified as 

MANDATORY and no AD action was 

warranted. However, through a recent 

occurrence, it was discovered that 

deterioration of the Peri-seals enables the 

piccolo tubes to vibrate, resulting in a broken 

piccolo tube. In this case, the location of the 

failure was more outboard than previous 

occurrences. This condition, if not corrected, 

may cause heat damage to the front spar that 

potentially affects the wing’s load capability. 

Since an unsafe condition was identified, 

likely to exist or develop on an aircraft of this 

type design, CAA (Civil Aviation Authority) 

Netherlands issued AD NL–2006–011 to 

require inspection of the Piccolo Tubes and 

the surrounding structure to establish correct 

installation, as well as the replacement of the 

460-series Peri-seals by the improved 600- 

series, which have a higher temperature 

limit. 

Since the issuance of that AD, Fokker has 

developed a modification, published as 


rmajette on PROD1PC64 with PROPOSALS