906 Federal Register / Vol. 75, No. 4 / Thursday, January 7, 2010 / Rules and Regulations 

actions required by this AD, unless the AD 

specifies otherwise. 

(1) On December 14, 2009 (74 FR 57561, 

November 9, 2009), the Director of the 

Federal Register previously approved the 

incorporation by reference of the service 

information listed in Table 1 of this AD. 

(2) For service information identified in 

this AD, contact Piaggio Aero Industries 

S.p.a., Via Cibrario, 4—16154 Genoa, Italy; 

telephone +39 010 06481 741; fax: +39 010 

6481 309; Internet: http:// 

www.piaggioaero.com, or e-mail: 

MMicheli@piaggioaero.it. 

(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. 

TABLE 1—MATERIAL INCORPORATED BY REFERENCE

Service information title Page(s) Revision Date 

PIAGGIO AERO INDUSTRIES S.p.A. Service Bulletin 

(Mandatory) N. 80–0249.

1 through 9 ........................ Rev. 1 ................................ May 27, 2009. 

PIAGGIO AERO INDUSTRIES S.p.A. Service Bulletin 

(Mandatory) N. 80–0249.

CONFIRMATION SLIP ..... Rev. 1 ................................ Not Dated. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI Maintenance Manual, Report No. 9066, 32–50–00.Cover ................................. No. D2 ............................... Revised June 16, 2008. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI Maintenance Manual, Report No. 9066, 32–50–00.1 through 8 ........................ Not Applicable ................... March 1, 2006. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI Maintenance Manual, Report No. 9066, 32–50–00.201, 202, 204, and 206 

through 216.

Not Applicable ................... June 16, 2008. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI Maintenance Manual, Report No. 9066, 32–50–00.203 and 205 ...................... Not Applicable ................... March 1, 2006. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI Maintenance Manual, Report No. 9066, 32–50–00.501 through 506 ................ Not Applicable ................... March 1, 2006. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI II Maintenance Manual, Report No. 180–MAN–0200–01105, 

32–50–00.

Cover ................................. No. A3 ............................... Revised December 19, 

2008. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI II Maintenance Manual, Report No. 180–MAN–0200–01105, 

32–50–00.

1 through 8 ........................ Not Applicable ................... June 30, 2005. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI II Maintenance Manual, Report No. 180–MAN–0200–01105, 

32–50–00.

201, 202, and 207 through 

209.

Not Applicable ................... December 19, 2008. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI II Maintenance Manual, Report No. 180–MAN–0200–01105, 

32–50–00.

203 and 205 ...................... Not Applicable ................... June 30, 2005. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI II Maintenance Manual, Report No. 180–MAN–0200–01105, 

32–50–00.

204, 206, and 210 through 

216.

Not Applicable ................... September 14, 2007. 

PIAGGIO AERO PIAGGIO P. 180 AVANTI II Maintenance Manual, Report No. 180–MAN–0200–01105, 

32–50–00.

501 through 506 ................ Not Applicable ................... June 30, 2005. 

Issued in Kansas City, Missouri, on 

December 30, 2009. 

Kim Smith, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. E9–31364 Filed 1–6–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–1222; Directorate 

Identifier 2009–NM–153–AD; Amendment 

39–16160; AD 2008–10–06 R1] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Model 747–400, –400D, and 

–400F Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is revising an 

existing airworthiness directive (AD), 

which applies to certain Model 747– 

400, –400D, and –400F series airplanes. 

That AD currently requires revising the 

FAA-approved maintenance program by 

incorporating new airworthiness 

limitations (AWLs) for fuel tank systems 

to satisfy Special Federal Aviation 

Regulation No. 88 requirements. That 

AD also requires phasing in certain 

repetitive AWL inspections, and repair 

if necessary. This AD clarifies the 

intended effect of the AD on spare and 

on-airplane fuel tank system 

components. This AD results from a 

design review of the fuel tank systems. 

We are issuing this AD to prevent the 

potential for ignition sources inside fuel 

tanks caused by latent failures, 

alterations, repairs, or maintenance 

actions, which, in combination with 

flammable fuel vapors, could result in a 

fuel tank explosion and consequent loss 

of the airplane. 


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Federal Register / Vol. 75, No. 4 / Thursday, January 7, 2010 / Rules and Regulations 907 

DATES: This AD is effective January 22, 

2010. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of January 22, 2010. 

On June 12, 2008 (73 FR 25990, May 

8, 2008), the Director of the Federal 

Register approved the incorporation by 

reference of a certain publication listed 

in the AD. 

We must receive any comments on 

this AD by February 22, 2010. 

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. 

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 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: Judy 

Coyle, Aerospace Engineer, Propulsion 

Branch, ANM–140S, FAA, Seattle 

Aircraft Certification Office (ACO), 1601 

Lind Avenue, SW., Renton, Washington 

98057–3356; telephone (425) 917–6497; 

fax (425) 917–6590. 

SUPPLEMENTARY INFORMATION: 

Discussion 

On April 28, 2008, we issued AD 

2008–10–16, Amendment 39–15512 (73 

FR 25990, May 8, 2008). That AD 

applied to certain Model 747–400, 

–400D, and –400F series airplanes. That 

AD required revising the FAA-approved 

maintenance program by incorporating 

new airworthiness limitations (AWLs) 

for fuel tank systems to satisfy Special 

Federal Aviation Regulation No. 88 

requirements. That AD also required the 

phasing in of certain repetitive AWL 

inspections, and repair if necessary. 

That AD resulted from a design review 

of the fuel tank systems. The actions 

specified in that AD are intended to 

prevent the potential for ignition 

sources inside fuel tanks caused by 

latent failures, alterations, repairs, or 

maintenance actions, which, in 

combination with flammable fuel 

vapors, could result in a fuel tank 

explosion and consequent loss of the 

airplane. 

Critical design configuration control 

limitations (CDCCLs) are limitation 

requirements to preserve a critical 

ignition source prevention feature of the 

fuel tank system design that is necessary 

to prevent the occurrence of an unsafe 

condition. The purpose of a CDCCL is 

to provide instruction to retain the 

critical ignition source prevention 

feature during configuration change that 

may be caused by alterations, repairs, or 

maintenance actions. A CDCCL is not a 

periodic inspection. 

Actions Since AD Was Issued 

Since we issued that AD, we have 

determined that it is necessary to clarify 

the AD’s intended effect on spare and 

on-airplane fuel tank system 

components, regarding the use of 

maintenance manuals and instructions 

for continued airworthiness. 

Section 91.403(c) of the Federal 

Aviation Regulations (14 CFR 91.403(c)) 

specifies the following: 

No person may operate an aircraft for 

which a manufacturer’s maintenance manual 

or instructions for continued airworthiness 

has been issued that contains an 

airworthiness limitation section unless the 

mandatory * * * procedures * * * have 

been complied with. 

Some operators have questioned 

whether existing components affected 

by the new CDCCLs must be reworked. 

We did not intend for the AD to 

retroactively require rework of 

components that had been maintained 

using acceptable methods before the 

effective date of the AD. Owners and 

operators of the affected airplanes 

therefore are not required to rework 

affected components identified as 

airworthy or installed on the affected 

airplanes before the required revisions 

of the FAA-approved maintenance 

program. But once the CDCCLs are 

incorporated into the FAA-approved 

maintenance program, future 

maintenance actions on components 

must be done in accordance with those 

CDCCLs. 

Relevant Service Information 

AD 2008–10–06 cites Boeing 

Temporary Revision 09–010, dated 

March 2008, to the Boeing 747–400 

Maintenance Planning Data (MPD) 

Document, D621U400–9. Since we 

issued that AD, Boeing has revised the 

referenced service information. We have 

reviewed Revisions April 2008, and 

March 2009, to Section 9 of the Boeing 

747–400 Maintenance Planning Data 

(MPD) Document, D621U400–9. The 

revised MPDs add no new procedures, 

and revise certain others. 

FAA’s Determination and Requirements 

of This AD 

The unsafe condition described 

previously is likely to exist or develop 

on other airplanes of the same type 

design. For this reason, we are issuing 

this AD to revise AD 2008–10–06. This 

new AD retains the requirements of the 

existing AD, and adds a new note to 

clarify the intended effect of the AD on 

spare and on-airplane fuel tank system 

components. 

Explanation of Additional Changes to 

AD 

AD 2008–10–06 allowed the use of 

later revisions of the FAA-approved 

maintenance program. That provision 

has been removed from this AD. 

Allowing the use of ‘‘a later revision’’ of 

specific service documents violates 

Office of the Federal Register 

regulations for approving materials that 

are incorporated by reference. Affected 

operators, however, may request 

approval to use a later revision of the 

referenced service documents as an 

alternative method of compliance, 

under the provisions of paragraph (l) of 

this AD. 

We have revised this AD to identify 

the legal name of the manufacturer as 

published in the most recent type 

certificate data sheet for the affected 

airplane models. 

Costs of Compliance 

This revision imposes no additional 

economic burden. The current costs for 

this AD are repeated for the 

convenience of affected operators, as 

follows: 

We estimate that this AD affects 596 

airplanes of U.S. registry. We also 

estimate that it takes about 48 workhours per product to comply with this 

AD. The average labor rate is $80 per 

work-hour. Based on these figures, we 

estimate the cost of this AD to the U.S. 


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908 Federal Register / Vol. 75, No. 4 / Thursday, January 7, 2010 / Rules and Regulations 

operators to be $2,288,640, or $3,840 per 

product. 

FAA’s Justification and Determination 

of the Effective Date 

This revision merely clarifies the 

intended effect on spare and on-airplane 

fuel tank system components, and 

makes no substantive change to the 

AD’s requirements. For this reason, it is 

found that notice and opportunity for 

prior public comment for this action are 

unnecessary, and good cause exists for 

making this amendment effective in less 

than 30 days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not provide you with notice and 

an opportunity to provide your 

comments before it becomes effective. 

However, we invite you to send any 

written data, views, or arguments about 

this AD. Send your comments to an 

address listed under the ADDRESSES

section. Include ‘‘Docket No. FAA– 

2009–1222; Directorate Identifier 2009– 

NM–153–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 have 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 the 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 AD and placed it in the AD docket. 

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, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends part 39 of the Federal 

Aviation Regulations (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 

removing amendment 39–15512 (73 FR 

25990, May 8, 2008) and adding the 

following new AD: 

2008–10–06 R1 The Boeing Company: 

Amendment 39–16160. Docket No. 

FAA–2009–1222; Directorate Identifier 

2009–NM–153–AD. 

Effective Date 

(a) This airworthiness directive (AD) is 

effective January 22, 2010. 

Affected ADs 

(b) This AD revises AD 2008–10–06, 

Amendment 39–15512. 

Applicability 

(c) This AD applies to The Boeing 

Company Model 747–400, –400D, and –400F 

series airplanes, certificated in any category; 

with an original standard airworthiness 

certificate or original export certificate of 

airworthiness issued before April 12, 2006. 

Note 1: Airplanes with an original standard 

airworthiness certificate or original export 

certificate of airworthiness issued on or after 

April 12, 2006, must be already in 

compliance with the airworthiness 

limitations specified in this AD because 

those limitations were applicable as part of 

the airworthiness certification of those 

airplanes. 

Note 2: This AD requires revisions to 

certain operator maintenance documents to 

include new inspections. Compliance with 

these inspections is required by 14 CFR 

91.403(c). For airplanes that have been 

previously modified, altered, or repaired in 

the areas addressed by these inspections, the 

operator may not be able to accomplish the 

inspections described in the revisions. In this 

situation, to comply with 14 CFR 91.403(c), 

the operator must request approval for an 

alternative method of compliance (AMOC) 

according to paragraph (l) of this AD. The 

request should include a description of 

changes to the required inspections that will 

ensure the continued operational safety of 

the airplane. 

Unsafe Condition 

(d) This AD results from a design review 

of the fuel tank systems. We are issuing this 

AD to prevent the potential for ignition 

sources inside fuel tanks caused by latent 

failures, alterations, repairs, or maintenance 

actions, which, in combination with 

flammable fuel vapors, could result in a fuel 

tank explosion and consequent loss 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. 

Service Information Reference 

(f) The term ‘‘Revision March 2008 of the 

MPD,’’ as used in this AD, means Boeing 

Temporary Revision (TR) 09–010, dated 

March 2008. Boeing TR 09–010 is published 

as Section 9 of the Boeing 747–400 

Maintenance Planning Data (MPD) 

Document, D621U400–9, Revision March 

2008. 

Restatement of AD 2008–10–06, With 

Revised Compliance Method 

Maintenance Program Revision 

(g) Before December 16, 2008, revise the 

FAA-approved maintenance program by 

incorporating the information in the 

subsections specified in paragraphs (g)(1), 

(g)(2), and (g)(3) of this AD; except that the 

initial inspections specified in Table 1 of this 

AD must be done at the compliance times 

specified in Table 1. 

(1) Subsection B, ‘‘AIRWORTHINESS 

LIMITATIONS (AWLs)—SYSTEMS,’’ of 

Boeing TR 09–010, dated March 2008; or 

Section 9, Revision April 2008, or March 

2009, of the Boeing 747–400 Maintenance 

Planning Data (MPD) Document, D621U400– 

9. 

(2) Subsection C, ‘‘PAGE FORMAT: FUEL 

SYSTEMS AIRWORTHINESS 


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Federal Register / Vol. 75, No. 4 / Thursday, January 7, 2010 / Rules and Regulations 909 

LIMITATIONS,’’ of Boeing TR 09–010, dated 

March 2008; or Section 9, Revision April 

2008, or March 2009, of the Boeing 747–400 

MPD, Document, D621U400–9. 

(3) Subsection D, ‘‘AIRWORTHINESS 

LIMITATIONS—FUEL SYSTEMS,’’ AWLs 

No. 28–AWL–01 through No. 28–AWL–23 

inclusive, of Boeing TR 09–010, dated March 

2008; or Section 9, Revision April 2008, or 

March 2009, of the Boeing 747–400 MPD 

Document, D621U400–9. As an optional 

action, AWLs No. 28–AWL–24 through No. 

28–AWL–29 inclusive, as identified in 

Subsection D of Boeing TR 09–010, Revision 

March 2008; or Section 9, Revision April 

2008, or March 2009, of the Boeing 747–400 

MPD Document, D621U400–9; also may be 

incorporated into the FAA-approved 

maintenance program. 

Initial Inspections and Repair if Necessary 

(h) Do the inspections specified in Table 1 

of this AD at the compliance time specified 

in Table 1 of this AD, and repair any 

discrepancy, in accordance with Subsection 

D of Boeing TR 09–010 dated March 2008; or 

Section 9, Revision April 2008, or March 

2009, of the Boeing 747–400 MPD Document, 

D621U400–9. The repair must be done before 

further flight. Accomplishing the inspections 

identified in Table 1 of this AD as part of an 

FAA-approved maintenance program before 

the applicable compliance time specified in 

Table 1 of this AD constitutes compliance 

with the requirements of this paragraph. 

Note 3: For the purposes of this AD, a 

detailed inspection is: ‘‘An intensive 

examination of a specific item, installation, 

or assembly to detect damage, failure, or 

irregularity. Available lighting is normally 

supplemented with a direct source of good 

lighting at an intensity deemed appropriate. 

Inspection aids such as mirror, magnifying 

lenses, etc., may be necessary. Surface 

cleaning and elaborate procedures may be 

required.’’ 

Note 4: For the purposes of this AD, a 

special detailed inspection is: ‘‘An intensive 

examination of a specific item, installation, 

or assembly to detect damage, failure, or 

irregularity. The examination is likely to 

make extensive use of specialized inspection 

techniques and/or equipment. Intricate 

cleaning and substantial access or 

disassembly procedure may be required.’’ 

TABLE 1—INITIAL INSPECTIONS

AWL No. Description 

Compliance time 

(whichever occurs later) 

Threshold Grace period 

28–AWL–01 ....... A detailed inspection of external wires 

over the center fuel tank for damaged 

or loose clamps, wire chafing, and 

wire bundles in contact with the surface of the center fuel tank. 

Within 144 months since the date of 

issuance of the original standard airworthiness certificate or the date of 

issuance of the original export certificate of airworthiness. 

Within 72 months after June 12, 2008 

(the effective date of AD 2008–10– 

06). 

28–AWL–03 ....... A special detailed inspection of the 

lightning shield to ground termination 

on the out-of-tank fuel quantity indicating system to verify functional integrity. 

Within 144 months since the date of 

issuance of the original standard airworthiness certificate or the date of 

issuance of the original export certificate of airworthiness. 

Within 24 months after June 12, 2008 

(the effective date of AD 2008–10– 

06). 

28–AWL–10 ....... A special detailed inspection of the fault 

current bond of the fueling shutoff 

valve actuator of the center wing tank 

to verify electrical bond. 

Within 144 months since the date of 

issuance of the original standard airworthiness certificate or the date of 

issuance of the original export certificate of airworthiness. 

Within 60 months after June 12, 2008 

(the effective date of AD 2008–10– 

06). 

Incorporation of Additional AWLs for 

Certain Airplanes 

(i) For Model 747–400 series airplanes 

equipped with an auxiliary fuel tank: Before 

December 16, 2008, revise the FAA-approved 

maintenance program by incorporating AWLs 

No. 28–AWL–30, No. 28–AWL–31, and No. 

28–AWL–32 of Subsection D of Boeing TR 

09–010, dated March 2008; or Section 9, 

Revision April 2008, or March 2009, of the 

Boeing 747–400 MPD Document, D621U400– 

9. 

No Alternative Inspections, Inspection 

Intervals, or Critical Design Configuration 

Control Limitations (CDCCLs) 

(j) After accomplishing the applicable 

actions specified in paragraphs (g), (h), and 

(i) of this AD, no alternative inspections, 

inspection intervals, or CDCCLs may be used 

unless the inspections, intervals, or CDCCLs 

are approved as an AMOC in accordance 

with the procedures specified in paragraph 

(l) of this AD. 

Credit for Actions Done According to 

Previous Revisions of the MPD 

(k) Actions done before June 12, 2008, in 

accordance with Section 9 of the Boeing 747– 

400 MPD Document, D621U400–9, Revision 

23, dated March 2006; Revision 24, dated 

June 2006; Revision November 2006; 

Revision December 2006; Revision December 

2006 R1; Revision May 2007; Revision 

October 2007; or Revision November 2007; 

are acceptable for compliance with the 

corresponding requirements of paragraphs (g) 

and (h) of this AD. 

New Information 

Explanation of CDCCL Requirements 

Note 5: Notwithstanding any other 

maintenance or operational requirements, 

components that have been identified as 

airworthy or installed on the affected 

airplanes before the revision of the FAAapproved maintenance program, as required 

by paragraph (g) of this AD, do not need to 

be reworked in accordance with the CDCCLs. 

However, once the FAA-approved 

maintenance program has been revised, 

future maintenance actions on these 

components must be done in accordance 

with the CDCCLs. 

Alternative Methods of Compliance (AMOCs) 

(l)(1) The Manager, Seattle Aircraft 

Certification 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: Judy Coyle, 

Aerospace Engineer, Propulsion Branch, 

ANM–140S, FAA, Seattle Aircraft 

Certification Office, 1601 Lind Avenue, SW., 

Renton, Washington 98057–3356; telephone 

(425) 917–6497; fax (425) 917–6590. Or, 

e-mail information to 9-ANM-Seattle-ACOAMOC-Requests@faa.gov. 

(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 principal maintenance inspector 

(PMI) or principal avionics inspector (PAI), 

as appropriate, or lacking a principal 

inspector, your local Flight Standards District 

Office. The AMOC approval letter must 

specifically reference this AD. 

(3) AMOCs approved previously in 

accordance with AD 2008–10–06, are 

approved as AMOCs for the corresponding 

provisions of this AD. 

Material Incorporated by Reference 

(m) You must use Boeing Temporary 

Revision 09–010, dated March 2008, to the 

Boeing 747–400 Maintenance Planning Data 

(MPD) Document D621U400–9; Section 9, 

Revision April 2008, of the Boeing 747–400 

Maintenance Planning Data (MPD) 

Document, D621U400–9; or Section 9, 

Revision March 2009, of the Boeing 747–400 

Maintenance Planning Data (MPD) 

Document, D621U400–9; to do the actions 


cprice-sewell on DSK8KYBLC1PROD with NOTICES
910 Federal Register / Vol. 75, No. 4 / Thursday, January 7, 2010 / Rules and Regulations 

required by this AD, unless the AD specifies 

otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

Section 9, Revision April 2008, of the Boeing 

747–400 Maintenance Planning Data (MPD) 

Document D62U400–9; and Section 9, 

Revision March 2009, of the Boeing 747–400 

Maintenance Planning Data (MPD) 

Document, D621U400–9; under 5 U.S.C. 

522(a) and 1 CFR part 51. 

(2) The Director of the Federal Register 

previously approved the incorporation by 

reference of Boeing Temporary Revision 09– 

010, dated March 2008, to the Boeing 747– 

400 MPD Document D621U400–9, on June 

12, 2008 (73 FR 25990, May 8, 2008). 

(3) 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. 

(4) You may review copies of the service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue, SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, call 

425–227–1221 or 425–227–1152. 

(5) You may also review copies of the 

service information that is incorporated by 

reference 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 Renton, Washington, on 

December 21, 2009. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E9–31070 Filed 1–6–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–27687; Directorate 

Identifier 2000–NE–42–AD; Amendment 39– 

16144; AD 2009–26–09] 

RIN 2120–AA64 

Airworthiness Directives; General 

Electric Company CF34–1A, –3A, –3A1, 

–3A2, –3B, and –3B1 Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is superseding an 

existing airworthiness directive (AD) for 

General Electric Company (GE) CF34– 

1A, –3A, –3A1, –3A2, –3B, and –3B1 

turbofan engines. That AD currently 

requires a onetime visual and tactile 

inspection of certain areas of certain 

P/N and SN fan disks for an arc-out 

defect, within 20 engine flight hours 

after the effective date of that AD. This 

AD requires inspecting certain fan disks 

for electrical arc-out indications, 

removing from service fan disks with 

electrical arc-out indications, 

performing tactile and enhanced visual 

(TEV) inspections, fluorescent penetrant 

inspections (FPI), and eddy current 

inspections (ECI) on certain disks that 

have already had a shop-level 

inspection, and repetitive FPI and ECI 

on certain fan disks. This AD results 

from an updated risk analysis by GE that 

shows we need to take corrective action 

that is more stringent. We are issuing 

this AD to prevent an uncontained 

failure of the fan disk, which could 

result in damage to the airplane. 

DATES: This AD becomes effective 

February 11, 2010. The Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in the regulations as 

of February 11, 2010. 

ADDRESSES: You can get the service 

information identified in this AD from 

General Electric Company via Lockheed 

Martin Technology Services, 10525 

Chester Road, Suite C, Cincinnati, Ohio 

45215; telephone (513) 672–8400; fax 

(513) 672–8422. 

The Docket Operations office is 

located at Docket Management Facility, 

U.S. Department of Transportation, 1200 

New Jersey Avenue, SE., West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001. 

FOR FURTHER INFORMATION CONTACT: Tara 

Chaidez, Aerospace Engineer, Engine 

Certification Office, FAA, Engine and 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

e-mail: tara.chaidez@faa.gov; telephone 

(781) 238–7773; fax (781) 238–7199. 

SUPPLEMENTARY INFORMATION: The FAA 

proposed to amend 14 CFR part 39 by 

superseding AD 2007–07–07R1, 

Amendment 39–15179 (72 FR 49183, 

August 28, 2007) and AD 2007–05–16, 

Amendment 39–14977 (72 FR 10054, 

March 7, 2007), with a proposed AD. 

The proposed AD applies to GE CF34– 

1A, –3A, –3A1, –3A2, –3B, and –3B1 

turbofan engines. We published the 

proposed AD in the Federal Register on 

April 17, 2009 (74 FR 17799). That 

action proposed to require: 

• Replacing certain fan disks installed 

on regional jets within 15 days after the 

effective date of the proposed AD, and 

• On-wing and shop-level inspections 

of fan disks for electrical arc-out defects 

on fan disks installed on regional jets, 

and 

• Shop-level inspections of fan disks 

for electrical arc-out defects on fan disks 

installed on business jets. 

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 AD, the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (telephone 

(800) 647–5527) is provided in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comments received. 

Request To Change the Compliance 

Requirements for Previously Inspected 

CF34–3B Tier 3 Disks 

Two commenters, GE and Bombardier 

Flex, ask us to change the compliance 

requirements for previously inspected 

CF34–B tier 3 disks from ‘‘within 3,500 

cycles-since-last inspection (CSLI), but 

no later than March 19, 2012’’ to ‘‘at the 

next shop visit.’’ The commenters state 

that requiring ‘‘within 3,500 CSLI, but 

no later than March 19, 2012,’’ make the 

requirements more conservative than 

the tier 1 and tier 2 disk reinspection 

programs. 

We agree. We have changed paragraph 

(m)(2) of this AD from ‘‘within 3,500 

CSLI, but no later than March 19, 2012’’ 

to ‘‘at the next shop visit.’’ 

Request To Include Table 2 of GE ASB 

CF34–BJ S/B 72–A0212, Revision 04, 

dated October 27, 2008 

One commenter asks us to include 

Table 2 of GE ASB CF34–BJ S/B 72– 

A0212, Revision 04, dated October 27, 

2008, in the AD. The commenter states 

that many owners, lessors, or their 

respective representatives are routinely 

denied access to the manufacturer’s 

Web site where the referenced SBs are 

archived. The commenter states that this 

makes it very difficult, if not impossible, 

to evaluate and schedule compliance 

with this AD. 

We don’t agree. If operators and 

others who need the service information 

can’t get the service information from 

the manufacturer, they can contact the 

individual or office identified in 


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