33856 Federal Register / Vol. 72, No. 118 / Wednesday, June 20, 2007 / Rules and Regulations 

60730A, dated March 14, 2006; or Revision 

1, dated May 9, 2006. 

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, International 

Branch, ANM–116, FAA, Transport Airplane 

Directorate, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. Send 

information to ATTN: Todd Thompson, 

Aerospace Engineer, International Branch, 

ANM–116, FAA, Transport Airplane 

Directorate, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone (425) 

227–1175; (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 FAAapproved 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 European Aviation 

Safety Agency Airworthiness Directive 2006–

0342, dated November 9, 2006; and BAE 

Systems (Operations) Limited Modification 

Service Bulletin SB.25–495–60730A, dated 

March 14, 2006; or Revision 1, dated May 9, 

2006; for related information. 

Material Incorporated by Reference 

(i) You must use BAE Systems (Operations) 

Limited Modification Service Bulletin SB.25–

495–60730A, dated March 14, 2006; or BAE 

Systems (Operations) Limited Modification 

Service Bulletin SB.25–495–60730A, 

Revision 1, dated May 9, 2006; 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 British Aerospace Regional 

Aircraft American Support, 13850 Mclearen 

Road, Herndon, Virginia 20171. 

(3) You may review copies at the FAA, 

Transport Airplane Directorate, 1601 Lind 

Avenue, SW., Renton, Washington; or 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/cfr/ibrlocations.html. 

Issued in Renton, Washington, on June 8, 

2007. 

Stephen P. Boyd, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. E7–11675 Filed 6–19–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2006–25973; Directorate 

Identifier 2006–NM–178–AD; Amendment 

39–15109; AD 2007–13–05] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 777 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Boeing Model 777 airplanes. This AD 

requires repetitive measurements of the 

freeplay of the right and left elevators, 

rudder, and rudder tab, and related 

investigative and corrective actions if 

necessary. This AD also requires 

repetitive lubrication of the elevator, 

rudder, and rudder tab components. 

This AD results from reports of freeplayinduced vibration of unbalanced control 

surfaces. Excessive freeplay of control 

surfaces can cause unacceptable 

airframe vibration during flight. The 

potential for vibration of the control 

surface should be avoided because the 

point of transition from vibration to 

divergent flutter is unknown. We are 

issuing this AD to prevent flutter, which 

can cause damage to the control surface 

structure and consequent loss of control 

of the airplane. 

DATES: This AD becomes effective July 

25, 2007. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of July 25, 2007. 

ADDRESSES: You may examine the 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., Nassif Building, Room PL–401, 

Washington, DC. 

Contact Boeing Commercial 

Airplanes, P.O. Box 3707, Seattle, 

Washington 98124–2207, for service 

information identified in this AD. 

FOR FURTHER INFORMATION CONTACT: 

Dennis Stremick, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6450; fax (425) 917–6590. 

SUPPLEMENTARY INFORMATION: 

Examining the Docket 

You may examine the airworthiness 

directive (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 street address stated in the 

ADDRESSES section. 

Discussion 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to all Boeing Model 777 airplanes. 

That NPRM was published in the 

Federal Register on October 3, 2006 (71 

FR 58323). That NPRM proposed to 

require repetitive measurements of the 

freeplay of the right and left elevators, 

rudder, and rudder tab, and related 

investigative and corrective actions if 

necessary. That NPRM also proposed to 

require repetitive lubrication of the 

elevator, rudder, and rudder tab 

components. 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comments received. 

Support for the NPRM 

Boeing and United Airlines support 

the contents of the NPRM. 

Request To Accomplish Repetitive 

Actions at the Later of the Compliance 

Times 

United Airlines requests that we 

revise the compliance times for the 

repetitive freeplay measurements and 

lubrication to specify doing those 

actions at the later of the proposed 

compliance times (i.e., whichever 

occurs later). Boeing Special Attention 

Service Bulletin 777–27–0062, dated 

July 18, 2006, recommends repeating 

the freeplay measurement at intervals of 

12,000 flight hours or 36 months, 

whichever occurs first, and repeating 

the lubrication at intervals of 5,000 

flight hours or 16 months, whichever 

occurs first. As justification, United 


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Airlines states that the change would 

allow operators to accomplish the 

actions within the thresholds specified 

in the Boeing 777 Maintenance Planning 

Document (MPD). 

We disagree with allowing operators 

to perform the repetitive actions at the 

later of the compliance times. 

Accomplishing the repetitive freeplay 

measurements and lubrication at the 

compliance times specified in the MPD 

has not prevented the unsafe condition 

from occurring in service on other 

Boeing airplane models that incorporate 

the same design features. In developing 

an appropriate compliance time for this 

action, we considered the urgency 

associated with the subject unsafe 

condition, the practical aspect of 

accomplishing the required actions 

within an interval of time that 

corresponds to the normal scheduled 

maintenance for most affected operators, 

and the recommendation of the 

manufacturer. However, according to 

the provisions of paragraph (j) of this 

AD, we may approve requests to adjust 

the compliance time if the request 

includes data that substantiate that the 

new compliance time would provide an 

acceptable level of safety. We have not 

changed this AD in this regard. 

Request To Revise Compliance Times 

British Airways and United Airlines 

request that we revise the compliance 

times for the repetitive freeplay 

measurements and lubrication to match 

the times in the Boeing 777 MPD. Both 

commenters state that the MPD requires 

the freeplay measurement at intervals of 

18,000 flight hours and requires the 

lubrication at intervals of 6,000 flight 

hours or 560 days. As justification, 

British Airways states the following: (1) 

It has been performing these tasks in 

accordance with the Boeing 777 MPD 

with no adverse findings for its fleet, (2) 

it uses BMS 3–33 grease for the 

lubrication, which improves service life 

over MIL–PRF–23827C, and (3) Boeing 

has not reported any freeplay issues on 

Model 777 airplanes or provided 

justification for recommending different 

intervals in the service bulletin. British 

Airways also states that it considers the 

MPD intervals adequate and that 

mandating the intervals in Boeing 

Special Attention Service Bulletin 777–

27–0062, dated July 18, 2006, would not 

significantly improve safety. 

We disagree with revising the 

compliance times. Accomplishing the 

required freeplay measurements and 

lubrication at the compliance times 

specified in the MPD has not prevented 

the unsafe condition from occurring in 

service on other Boeing airplane models 

that incorporate the same design 

features. Further, Boeing has advised us 

that it intends to pursue revising the 

MPD task to reflect the compliance 

times specified in this AD at the next 

revision cycle of the document. We have 

determined that the compliance times 

specified in the service bulletin will 

ensure an acceptable level of safety. 

However, according to the provisions of 

paragraph (j) of this AD, we may 

approve requests to adjust the 

compliance time if the request includes 

data that prove that the new compliance 

time would provide an acceptable level 

of safety. No change to this AD is 

necessary in this regard. 

Request for Credit for Accomplishment 

of Certain MPD Tasks 

Air China asks if accomplishment of 

Tasks 12–002–01, 12–004–00, 27–240–

00, and 27–430–00 of the Boeing 777 

MPD is acceptable for compliance with 

the initial freeplay check and 

lubrication. United Airlines also 

requests that airplanes maintained in 

accordance with these tasks be 

considered in compliance. 

We do not agree to allow the MPD 

tasks as an acceptable source of service 

information for accomplishing the 

freeplay measurement. We find that 

neither appropriate procedures nor 

applicable limits are, at this time, 

specified in the MPD tasks that describe 

accomplishing the inspections and 

lubrication. Thus, the MPD tasks are not 

adequate to ensure that an acceptable 

level of safety is maintained. However, 

according to the provisions of paragraph 

(j) of this AD, we may approve a request 

of an alternative method of compliance 

(AMOC) if data are presented to 

substantiate that the actions provide an 

acceptable level of safety. We have not 

changed this AD in this regard. 

Request To Publish Service Information 

The Modification and Replacement 

Parts Association (MARPA) states that, 

typically, ADs are based on service 

information originating with the type 

certificate holder or its suppliers. 

MARPA adds that manufacturer service 

documents are privately authored 

instruments generally having copyright 

protection against duplication and 

distribution. MARPA notes that when a 

service document is incorporated by 

reference into a public document, such 

as an AD, it loses its private, protected 

status and becomes a public document. 

MARPA adds that if a service document 

is used as a mandatory element of 

compliance, it should not simply be 

referenced, but should be incorporated 

into the regulatory document; by 

definition, public laws must be public, 

which means they cannot rely upon 

private writings. MARPA adds that 

incorporated by reference service 

documents should be made available to 

the public by publication in the 

Department of Transportation’s Docket 

Management System (DMS), keyed to 

the action that incorporates them. 

MARPA notes that the stated purpose of 

the incorporation by reference method 

is brevity, to keep from expanding the 

Federal Register needlessly by 

publishing documents already in the 

hands of the affected individuals; 

traditionally, ‘‘affected individuals’’

means aircraft owners and operators, 

who are generally provided service 

information by the manufacturer. 

MARPA adds that a new class of 

affected individuals has emerged, since 

the majority of aircraft maintenance is 

now performed by specialty shops 

instead of aircraft owners and operators. 

MARPA notes that this new class 

includes maintenance and repair 

organizations, component servicing and 

repair shops, parts purveyors and 

distributors, and organizations 

manufacturing or servicing alternatively 

certified parts under section 21.303 

(‘‘Replacement and modification parts’’) 

of the Federal Aviation Regulations (14 

CFR 21.303). MARPA adds that the 

concept of brevity is now nearly archaic 

as documents exist more frequently in 

electronic format than on paper. 

Therefore, MARPA asks that the service 

document deemed essential to the 

accomplishment of the NPRM be 

incorporated by reference into the 

regulatory instrument and published in 

DMS. 

We acknowledge MARPA’s comment 

concerning incorporation by reference. 

The Office of the Federal Register (OFR) 

requires that documents that are 

necessary to accomplish the 

requirements of the AD be incorporated 

by reference during the final rule phase 

of rulemaking. This AD incorporates by 

reference the document necessary for 

the accomplishment of the requirements 

mandated by this AD. Further, we point 

out that while documents that are 

incorporated by reference do become 

public information, they do not lose 

their copyright protection. For that 

reason, we advise the public to contact 

the manufacturer to obtain copies of the 

referenced service information. 

In regard to the commenter’s request 

to post the service bulletin on DMS, we 

are currently in the process of reviewing 

issues surrounding the posting of 

service bulletins on DMS as part of an 

AD docket. Once we have thoroughly 

examined all aspects of this issue and 

have made a final determination, we 

will consider whether our current 

practice needs to be revised. No change 


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33858 Federal Register / Vol. 72, No. 118 / Wednesday, June 20, 2007 / Rules and Regulations 

to this AD is necessary in response to 

this comment. 

Conclusion 

We have carefully reviewed the 

available data, including the comments 

received, and determined that air safety 

and the public interest require adopting 

the AD as proposed. 

Costs of Compliance 

There are about 695 airplanes of the 

affected design in the worldwide fleet. 

The following table provides the 

estimated costs, at an average labor rate 

of $80 per work hour, for U.S. operators 

to comply with this AD. 

ESTIMATED COSTS

Action Work hours Cost per airplane 

Number of 

U.S.- 

registered 

airplanes 

Fleet cost 

Measurement of elevators ................ 4 $320, per measurement cycle .......... 145 $46,400, per measurement cycle. 

Lubrication of elevators ..................... 17 $1,360, per lubrication cycle ............ 145 $197,200, per lubrication cycle. 

Measurement of rudder ..................... 4 $320, per measurement cycle .......... 145 $46,400, per measurement cycle. 

Lubrication of rudder ......................... 7 $560, per lubrication cycle ............... 145 $81,200, per lubrication cycle. 

Measurement of rudder tab .............. 3 $240, per measurement cycle .......... 145 $34,800, per measurement cycle. 

Lubrication of rudder tab ................... 5 $400, per lubrication cycle ............... 145 $58,000, per lubrication cycle. 

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 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. 

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 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 Federal Aviation 

Administration (FAA) amends § 39.13 

by adding the following new 

airworthiness directive (AD): 

2007–13–05 Boeing: Amendment 39–15109. 

Docket No. FAA–2006–25973; 

Directorate Identifier 2006–NM–178–AD. 

Effective Date 

(a) This AD becomes effective July 25, 

2007. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to all Boeing Model 

777–200, –200LR, –300, and –300ER series 

airplanes, certificated in any category. 

Unsafe Condition 

(d) This AD results from reports of 

freeplay-induced vibration of unbalanced 

control surfaces. Excessive freeplay of control 

surfaces can cause unacceptable airframe 

vibration during flight. The potential for 

vibration of the control surface should be 

avoided because the point of transition from 

vibration to divergent flutter is unknown. We 

are issuing this AD to prevent flutter, which 

can cause damage to the control surface 

structure and consequent loss of control 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. 

Repetitive Measurements 

(f) At the applicable times specified in 

Tables 1, 2, and 3 of paragraph 1.E., 

‘‘Compliance,’’ of Boeing Special Attention 

Service Bulletin 777–27–0062, dated July 18, 

2006, except as provided by paragraph (i) of 

this AD: Measure the freeplay of the right and 

left elevators, rudder, and rudder tab; and do 

all related investigative and corrective 

actions before further flight; by 

accomplishing all the actions specified in 

Parts 1, 3, and 5 of the Accomplishment 

Instructions of Boeing Special Attention 

Service Bulletin 777–27–0062, dated July 18, 

2006, as applicable. Repeat the 

measurements and related investigative and 

corrective actions thereafter at the interval 

specified in Table 1, 2, or 3 of the service 

bulletin, as applicable. 

Repetitive Lubrication 

(g) At the applicable times specified in 

Tables 1, 2, and 3 of paragraph 1.E., 

‘‘Compliance,’’ of Boeing Special Attention 

Service Bulletin 777–27–0062, dated July 18, 

2006, except as provided by paragraph (i) of 

this AD: Lubricate the elevator components, 

rudder components, and rudder tab 

components, by accomplishing all the actions 

specified in Parts 2, 4, and 6 of the 

Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 777–27–

0062, dated July 18, 2006, as applicable. 

Repeat the lubrication thereafter at the 

interval specified in Table 1, 2, or 3 of the 

service bulletin, as applicable. 


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Federal Register / Vol. 72, No. 118 / Wednesday, June 20, 2007 / Rules and Regulations 33859 

Concurrent Compliance Times 

(h) If a freeplay measurement of a specified 

part required by paragraph (f) of this AD and 

a lubrication of the same part required by 

paragraph (g) of this AD are due at the same 

time or will be accomplished during the 

same maintenance visit, the freeplay 

measurement and all related investigative 

and corrective actions must be done before 

the lubrication is accomplished. 

Exceptions to Compliance Times 

(i) Where Boeing Special Attention Service 

Bulletin 777–27–0062, dated July 18, 2006, 

recommends an initial compliance threshold 

of ‘‘Within 36 months after the date on this 

service bulletin’’ for Parts 1, 3, and 5 of the 

service bulletin, this AD requires an initial 

compliance threshold of ‘‘within 36 months 

after the effective date of this AD.’’ Where 

Boeing Special Attention Service Bulletin 

777–27–0062, dated July 18, 2006, 

recommends an initial compliance threshold 

of ‘‘Within 16 months after the date on this 

service bulletin’’ for Parts 2, 4, and 6 of the 

service bulletin, this AD requires an initial 

compliance threshold of ‘‘within 16 months 

after the effective date of this AD.’’

Alternative Methods of Compliance 

(AMOCs) 

(j)(1) The Manager, Seattle 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. 

(2) Before using any AMOC approved in 

accordance with § 39.19 on any airplane to 

which the AMOC applies, notify the 

appropriate principal inspector in the FAA 

Flight Standards Certificate Holding District 

Office. 

(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, Seattle ACO, to 

make those findings. For a repair method to 

be approved, the repair must meet the 

certification basis of the airplane, and the 

approval must specifically refer to this AD. 

Material Incorporated by Reference 

(k) You must use Boeing Special Attention 

Service Bulletin 777–27–0062, dated July 18, 

2006, to perform the actions that are required 

by this AD, unless the AD specifies 

otherwise. The Director of the Federal 

Register approved the incorporation by 

reference of this document in accordance 

with 5 U.S.C. 552(a) and 1 CFR part 51. 

Contact Boeing Commercial Airplanes, P.O. 

Box 3707, Seattle, Washington 98124–2207, 

for a copy of this service information. You 

may review copies at the FAA, Transport 

Airplane Directorate, 1601 Lind Avenue, 

SW., Renton, Washington; or at the National 

Archives and Records Administration 

(NARA). For information on the availability 

of this material at the NARA, call (202) 741–

6030, or go to: http://www.archives.gov/ 

federal-register/cfr/ibr-locations.html. 

Issued in Renton, Washington, on April 11, 

2007. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E7–11676 Filed 6–19–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2006–23803; Directorate 

Identifier 2005–NM–238–AD; Amendment 

39–15108; AD 2007–13–04] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 747–400, 747–400D, and 747–

400F Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is superseding an 

existing airworthiness directive (AD), 

which applies to all Boeing Model 747–

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

That AD currently requires revising the 

airplane flight manual (AFM) to require 

the flightcrew to maintain certain 

minimum fuel levels in the center fuel 

tanks, and to prohibit the use of the 

horizontal stabilizer fuel tank. This new 

AD requires installing new integrated 

display system (IDS) software; and also 

requires revising the AFM to include 

procedures to prevent dry operation of 

the center wing and horizontal stabilizer 

fuel tanks, for maintaining minimum 

fuel levels, and for de-fueling fuel tanks. 

For certain airplanes, this new AD also 

requires removing certain program pin 

ground wires of the IDS. This AD results 

from fuel system reviews conducted by 

the manufacturer. We are issuing this 

AD to reduce the potential for ignition 

sources inside fuel tanks, which, in 

combination with flammable fuel 

vapors, could result in fuel tank 

explosions and consequent loss of the 

airplane. 

DATES: This AD becomes effective July 

25, 2007. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of July 25, 2007. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

dms.dot.gov or in person at the U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC. 

Contact Boeing Commercial 

Airplanes, P.O. Box 3707, Seattle, 

Washington 98124–2207, for service 

information identified in this AD. 

FOR FURTHER INFORMATION CONTACT: 

Sulmo Mariano, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6501; fax (425) 917–6590. 

SUPPLEMENTARY INFORMATION: 

Examining the Docket 

You may 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 

Operations office (telephone (800) 647–

5527) is located on the ground floor of 

the West Building at the DOT street 

address stated in the ADDRESSES section. 

Discussion 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that 

supersedes AD 2002–24–52, amendment 

39–12993 (68 FR 14, January 2, 2003). 

The existing AD applies to certain 

Boeing Model 747–400, 747–400D, and 

747–400F series airplanes. That NPRM 

was published in the Federal Register 

on February 8, 2006 (71 FR 6404). That 

NPRM proposed to continue to require 

revising the airplane flight manual 

(AFM) to require the flightcrew to 

maintain certain minimum fuel levels in 

the center fuel tanks, and to prohibit the 

use of the horizontal stabilizer fuel tank. 

That NPRM also proposed to require 

installing new integrated display 

software (IDS) in the integrated display 

units and electronic flight instrument 

system/engine indication and crew 

alerting system (EICAS) interface units 

(EIUs) of the flight deck. In addition, 

that NPRM proposed to require revising 

the AFM to include procedures to 

prevent dry operation of the center wing 

and horizontal stabilizer fuel tanks; for 

maintaining minimum fuel levels; and 

for de-fueling fuel tanks. For certain 

airplanes, that NPRM also proposed to 

require removing G13 pin ground wires 

of a certain wire integration unit of the 

EIUs at certain connector locations. 

Comments 

We have considered the following 

comments on the NPRM. 

Request To Supersede Another AD 

Japan Airlines requests that paragraph 

(b) of the NPRM be revised to supersede 


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