Federal Register / Vol. 74, No. 111 / Thursday, June 11, 2009 / Rules and Regulations 27689 

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/ 

code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on June 3, 

2009. 

Stephen P. Boyd, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. E9–13570 Filed 6–10–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–0531; Directorate 

Identifier 2009–CE–030–AD; Amendment 

39–15938; AD 2009–12–15] 

RIN 2120–AA64 

Airworthiness Directives; GROB– 

Werke Model G120A Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for comments 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD results 

from mandatory continuing 

airworthiness information (MCAI) 

issued by the aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

The manufacturer has advised of receiving 

a report from a G 120A operator of an 

electrical fire caused by a chafed/scorched 

cable loom. It has been found that the RH 

main power distribution cable chafed on the 

instrument panel combing. It is likely that 

vibrations made the wiring to chafe. The 

chafing caused eventually electrical arcing 

and subsequently an in-flight fire that 

damaged partially the instrument panel 

cover. 

This AD requires actions that are 

intended to address the unsafe 

condition described in the MCAI. 

DATES: This AD becomes effective July 

1, 2009. 

On July 1, 2009, the Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in this AD. 

We must receive comments on this 

AD by July 13, 2009. 

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 

W12–140, 1200 New Jersey Avenue, SE., 

Washington, DC 20590, 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 Management Facility between 9 

a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The AD 

docket contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket 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: Karl 

Schletzbaum, Aerospace Engineer, FAA, 

Small Airplane Directorate, 901 Locust, 

Room 301, Kansas City, Missouri 64106; 

telephone: (816) 329–4146; fax: (816) 

329–4090. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued AD No.: 2009– 

0107, dated May 8, 2009 (referred to 

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

unsafe condition for the specified 

products. The MCAI states: 

The manufacturer has advised of receiving 

a report from a G 120A operator of an 

electrical fire caused by a chafed/scorched 

cable loom. It has been found that the RH 

main power distribution cable chafed on the 

instrument panel combing. It is likely that 

vibrations made the wiring to chafe. The 

chafing caused eventually electrical arcing 

and subsequently an in-flight fire that 

damaged partially the instrument panel 

cover. 

For the reasons stated above, this new AD 

mandates inspection of all cable looms in the 

front of the instrument panel cover, repair as 

necessary and installation of a protective 

cover on the edge of the instrument panel 

combing. 

You may obtain further information 

by examining the MCAI in the AD 

docket. 

Relevant Service Information 

GROB Aircraft AG has issued Service 

Bulletin No. MSB1121–108, dated 

March 18, 2009, and Service Bulletin 

No. MSB1121–108/1, dated April 27, 

2009. The actions described in this 

service information are intended to 

correct the unsafe condition identified 

in the MCAI. 

FAA’s Determination and Requirements 

of the 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 this State of 

Design Authority, they have notified us 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are issuing this 

AD because we evaluated all 

information provided by the State of 

Design Authority and determined the 

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 have also required different 

actions in this AD from those in the 

MCAI in order to follow FAA policies. 

Any such differences are described in a 

separate paragraph of the AD. These 

requirements take precedence over 

those copied from the MCAI. 

FAA’s Determination of the Effective 

Date 

An unsafe condition exists that 

requires the immediate adoption of this 

AD. The FAA has found that the risk to 

the flying public justifies waiving notice 

and comment prior to adoption of this 

rule because if left uncorrected, the 

power distribution cable could chafe 

leading to electrical arcing and an inflight fire. Therefore, we determined 

that notice and opportunity for public 

comment before issuing this AD are 

impracticable and that good cause exists 

for making this amendment effective in 

fewer than 30 days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 


cprice-sewell on PRODPC61 with RULES
27690 Federal Register / Vol. 74, No. 111 / Thursday, June 11, 2009 / Rules and Regulations 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2009–0531; 

Directorate Identifier 2009–CE–030– 

AD’’ at the beginning of your comments. 

We specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

this AD. We will consider all comments 

received by the closing date and may 

amend this AD because of 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 AD. 

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 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. 

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 FAA amends § 39.13 by adding 

the following new AD: 

2009–12–15 GROB–Werke: Amendment 

39–15938; Docket No. FAA–2009–0531; 

Directorate Identifier 2009–CE–030–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective July 1, 2009. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Model G120A 

airplanes, serial numbers 85001 through 

85007 and 85026 through 85034, certificated 

in any category. 

Subject 

(d) Air Transport Association of America 

(ATA) Code 24: Electric Power. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

‘‘The manufacturer has advised of 

receiving a report from a G 120A operator of 

an electrical fire caused by a chafed/scorched 

cable loom. It has been found that the RH 

main power distribution cable chafed on the 

instrument panel combing. It is likely that 

vibrations made the wiring to chafe. The 

chafing caused eventually electrical arcing 

and subsequently an in-flight fire that 

damaged partially the instrument panel 

cover. 

‘‘For the reasons stated above, this new AD 

mandates inspection of all cable looms in the 

front of the instrument panel cover, repair as 

necessary and installation of a protective 

cover on the edge of the instrument panel 

combing.’’ 

Actions and Compliance 

(f) Unless already done, do the following 

actions. 

(1) Before further flight after July 1, 2009 

(the effective date of this AD), inspect the 

electrical cables for chafing and scorching 

marks in accordance with the 

accomplishment instructions of GROB 

Aircraft AG Service Bulletin No. MSB1121– 

108, dated March 18, 2009, or GROB Aircraft 

AG Service Bulletin No. MSB1121–108/1, 

dated April 27, 2009. 

(2) If any chafe, burn, or scorch mark is 

found during the inspection required in 

paragraph (f)(1) of this AD, before further 

flight, replace the damaged cable(s) in 

accordance with the FAA Advisory Circular 

43.13–1B Change 1, dated September 27, 

2001, and install a protective cover on the 

attachment edge of the instrument panel 

combing in accordance with the 

accomplishment instructions of GROB 

Aircraft AG Service Bulletin No. MSB1121– 

108, dated March 18, 2009, or GROB Aircraft 

AG Service Bulletin No. MSB1121–108/1, 

dated April 27, 2009. You may get a copy of 

the FAA Advisory Circular on the Internet at 

http://rgl.faa.gov/ 

Regulatory_and_Guidance_Library/ 

rgAdvisoryCircular.nsf/Frameset?OpenPage. 

(3) If no chafe, burn, or scorch mark is 

found during the inspection required in 

paragraph (f)(1) of this AD, within the next 

100 hours time-in-service (TIS) after July 1, 

2009 (the effective date of this AD), install a 

protective cover on the attachment edge of 

the instrument panel combing in accordance 

with the accomplishment instructions of 

GROB Aircraft AG Service Bulletin No. 

MSB1121–108, dated March 18, 2009, or 

GROB Aircraft AG Service Bulletin No. 

MSB1121–108/1, dated April 27, 2009. 

(4) Thereafter, at intervals not to exceed 

every 200 hours TIS, repeat the inspection of 

the electrical cables for chafing and scorching 

marks in accordance with the 

accomplishment instructions of GROB 

Aircraft AG Service Bulletin No. MSB1121– 

108/1, dated April 27, 2009. 

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, Standards Office, 

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: Karl Schletzbaum, Aerospace 

Engineer, FAA, Small Airplane Directorate, 

901 Locust, Room 301, Kansas City, Missouri 

64106; telephone: (816) 329–4146; fax: (816) 

329–4090. 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 


cprice-sewell on PRODPC61 with RULES
Federal Register / Vol. 74, No. 111 / Thursday, June 11, 2009 / Rules and Regulations 27691 

provisions of the Paperwork Reduction Act 

(44 U.S.C. 3501 et seq.), 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) AD No.: 2009–0107, 

dated May 8, 2009; GROB Aircraft AG 

Service Bulletin No. MSB1121–108, dated 

March 18, 2009; and GROB Aircraft AG 

Service Bulletin No. MSB1121–108/1, dated 

April 27, 2009, for related information. 

Material Incorporated by Reference 

(i) You must use GROB Aircraft AG Service 

Bulletin No. MSB1121–108, dated March 18, 

2009; and GROB Aircraft AG Service Bulletin 

No. MSB1121–108/1, dated April 27, 2009, 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 GROB Aircraft AG/Customer 

Service, 86874 Tussenhausen-Mattsies, 

Germany; telephone: +49 (0) 8268–998–105; 

fax: + 49 (0) 8268–998–200; e-mail 

productsupport@grob-aircraft.com; Internet: 

http://www.grob-aircraft.eu/service-andsupport/g-120/documentation/servicebulletins.html. 

(3) You may review copies of the service 

information incorporated by reference for 

this AD at the FAA, Central Region, Office of 

the Regional Counsel, 901 Locust, Kansas 

City, Missouri 64106. For information on the 

availability of this material at the Central 

Region, call (816) 329–3768. 

(4) You may also review copies of the 

service information incorporated by reference 

for this AD 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/

code_of_federal_regulations/ibr_

locations.html. 

Issued in Kansas City, Missouri on June 4, 

2009. 

Kim Smith, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. E9–13576 Filed 6–10–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–1364; Directorate 

Identifier 2008–NM–103–AD; Amendment 

39–15928; AD 2009–12–05] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 737–300, –400, and –500 Series 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Boeing Model 737–300, –400, and –500 

series airplanes. This AD requires 

modifying the control power wiring of 

the normal supply fan and the low flow 

sensor for the equipment cooling system 

of the electronic flight instrument 

system (EFIS). This AD results from a 

report of loss of both the normal EFIS 

cooling supply and the indication of 

EFIS cooling loss due to a single failure 

of the battery bus, causing eventual 

power-down of the EFIS displays; the 

standby attitude indication is also 

powered by this battery bus. We are 

issuing this AD to prevent loss of all 

attitude indications from both the 

standby indicator and EFIS displays, 

which could decrease the ability of the 

flightcrew to maintain the safe flight 

and landing of the airplane. 

DATES: This AD is effective July 16, 

2009. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of July 16, 2009. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; telephone 206–544–5000, 

extension 1, fax 206–766–5680; e-mail 

me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Management Facility between 9 

a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The AD 

docket contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (telephone 800–647–5527) 

is the Document Management Facility, 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue, SE., 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: Suk 

Jang, Aerospace Engineer, Systems and 

Equipment Branch, ANM–130S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6511; fax (425) 917–6590. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an airworthiness 

directive (AD) that would apply to 

certain Boeing Model 737–300, –400, 

and –500 series airplanes. That NPRM 

was published in the Federal Register 

on January 12, 2009 (74 FR 1153). That 

NPRM proposed to require modifying 

the control power wiring of the normal 

supply fan and the low flow sensor for 

the equipment cooling system of the 

electronic flight instrument system 

(EFIS). 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Supportive Comments 

Boeing and Continental Airlines 

support the actions in the NPRM. 

Request To Add an Alternate Method of 

Compliance 

Lufthansa German Airlines asks that 

we add a method acceptable for 

compliance with the corresponding 

requirements of the NPRM. Lufthansa 

notes that, as specified in paragraphs (f), 

(g)(1), and (g)(2) of the NPRM, actions 

done in accordance with Boeing Alert 

Service Bulletin 737–21A1156, Revision 

1, dated October 23, 2007; or Boeing 

Alert Service Bulletin 737–21A1156, 

dated June 20, 2006; are acceptable for 

compliance. Lufthansa adds that these 

actions prevent loss of all attitude 

indications from both the standby 

indicator and EFIS displays in case of 

battery bus failure. (The following is a 

clarification of the commenter’s 

description of acceptable sources of 

service information specified in this AD: 

Boeing Alert Service Bulletin 737– 

21A1156, Revision 2, dated December 

11, 2008, is the source of service 

information referred to in the NPRM for 

accomplishing the specified actions. 

Actions done previously in accordance 

with Boeing Alert Service Bulletin 737– 

21A1156, Revision 1, dated October 23, 

2007; or Boeing Alert Service Bulletin 


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