Federal Register / Vol. 73, No. 49 / Wednesday, March 12, 2008 / Rules and Regulations 13081 

Material Incorporated by Reference 

(i) You must use the service information 

specified in Table 2 of this AD 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 Airbus, 1 Rond Point 

Maurice Bellonte, 31707 Blagnac Cedex, 

France. 

(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. 

TABLE 2.—MATERIAL INCORPORATED BY REFERENCE

Service information Revision level Date 

Airbus Service Bulletin A300–57–0247, including Appendix 01 ........................................ Original ................................. November 7, 2006. 

Airbus Service Bulletin A300–57–6104, including Appendix 01 ........................................ 01 ......................................... April 27, 2007. 

Issued in Renton, Washington, on February 

28, 2008. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E8–4480 Filed 3–11–08; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–28662; Directorate 

Identifier 2007–NM–014–AD; Amendment 

39–15415; AD 2008–06–03] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 737–600, –700, –700C, –800 and 

–900 Series Airplanes; and Model 757–

200, –200PF, –200CB, and –300 Series 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Boeing airplanes, identified above. This 

AD requires inspecting to determine if 

certain motor-operated shutoff valve 

actuators for the fuel tanks are installed, 

and related investigative and corrective 

actions if necessary. This AD also 

requires revising the Airworthiness 

Limitations (AWLs) section of the 

Instructions for Continued 

Airworthiness to incorporate AWL No. 

28–AWL–21, No. 28–AWL–22, and No. 

28–AWL–24 (for Model 737–600, –700, 

–700C, –800 and –900 series airplanes); 

and No. 28–AWL–23, No. 28–AWL–24, 

and No. 28–AWL–25 (for Model 757–

200, –200PF, –200CB, and –300 series 

airplanes). This AD results from a 

design review of the fuel tank systems. 

We are issuing this AD to prevent 

electrical energy from lightning, hot 

shorts, or fault current from entering the 

fuel tank through the actuator shaft, 

which could result in fuel tank 

explosions and consequent loss of the 

airplane. 

DATES: This AD becomes effective April 

16, 2008. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of April 16, 2008. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, P.O. Box 3707, 

Seattle, Washington 98124–2207. 

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: 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. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to certain Boeing Model 737–600, 

–700, –700C, –800 and –900 series 

airplanes; and Model 757–200, –200PF, 

–200CB, and –300 series airplanes. That 

NPRM was published in the Federal 

Register on July 10, 2007 (72 FR 37484). 

That NPRM proposed to require 

inspecting to determine if certain motoroperated shutoff valve actuators for the 

fuel tanks are installed, and related 

investigative and corrective actions if 

necessary. That NPRM also proposed to 

require revising the Airworthiness 

Limitations (AWLs) section of the 

Instructions for Continued 

Airworthiness to incorporate AWL No. 

28–AWL–21, No. 28–AWL–22, and No. 

28–AWL–24 (for Model 737–600, –700, 

–700C, –800 and –900 series airplanes), 

and No. 28–AWL–23, No. 28–AWL–24, 

and No. 28–AWL–25 (for Model 757–

200, –200PF, –200CB, and –300 series 

airplanes). 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comments received. 

Request To Revise References to 

Maintenance Planning Data (MPD) 

Documents 

Boeing requests that we revise the 

applicable areas in the NPRM that 

discuss the revision levels of the Boeing 

737 and 757 MPD documents. Boeing 

states that the references in the NPRM 

should be clarified for the following 

reasons: 

• Revision May 2006 of the Boeing 

737–600/700/700C/700IGW/800/900 

MPD did not add AWLs (Airworthiness 

Limitations) 28–AWL–21, –22, and –24. 

Instead, AWLs 28–AWL–21 and –22 

were added at Revision January 2006; 

AWL 28–AWL–24 was added at 

Revision October 2006. 

• Revision October 2006 of the 

Boeing 737–600/700/700C/700IGW/800/ 

900 MPD revised AWL 28–AWL–21. 

• Revision October 2006 of the 

Boeing 757 MPD added AWL 28–AWL–

25; AWLs 28–AWL–23 and –24 were 

added at Revision February 2006 of the 

Boeing 757 MPD. 

• Revision January 2007 of the Boeing 

757 MPD revised AWL 28–AWL–24. 

Boeing points out that the 

clarifications affect references in both 


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13082 Federal Register / Vol. 73, No. 49 / Wednesday, March 12, 2008 / Rules and Regulations 

the ‘‘Relevant Service Information’’

section, and paragraph (h) of the NPRM, 

and requests that we revise the AD to 

make the clarifications. 

We agree that the references need to 

be clarified for the reasons Boeing 

stated. We have made the following 

changes to the AD as Boeing outlined in 

its comment: 

• We have changed paragraph (h)(1) 

of the AD to refer to Revision November 

2006 R1 of the Boeing 737–600/700/ 

700C/700IGW/800/900 MPD rather than 

to Revision May 2006. 

• We have changed paragraph (h)(2) 

of the AD to refer to Revision January 

2007 of the Boeing 757 MPD rather than 

to Revision October 2006. 

However, we have not changed the 

‘‘Relevant Service Information’’ section 

of the NPRM because that section of the 

preamble does not reappear in the final 

rule. 

Request To Change Wording in Note 1 

of the NPRM 

Boeing requests that we change the 

wording in Note 1 of the NPRM as 

follows: 

• Change ‘‘new inspections and 

maintenance actions’’ to include the 

words ‘‘according to paragraph (h)’’ after 

‘‘actions.’’

• Change ‘‘the operator must request 

approval for revision to the 

airworthiness limitations’’ to ‘‘the 

operator must request approval for 

deviation from the airworthiness 

limitations.’’

• Remove ‘‘as applicable’’ from the 

last sentence of the note and change the 

paragraph reference from paragraph (h) 

to paragraph (i). 

Boeing explains that the current 

wording is difficult to follow. 

We partially agree. We have clarified 

the paragraph reference from paragraph 

(h) to paragraph (i). However, we do not 

agree to revise the note further. Boeing 

submitted a similar comment to another 

NPRM (Docket No. FAA–2006–26710), 

and the note in this AD is based on that 

comment. No additional change is 

necessary. In addition, we have used 

this note in several similar ADs and 

have not received any comments from 

operators requesting clarification. We 

have not changed this AD in this regard. 

Request To Have AD Address Part 

Number (P/N) S343T003–39 Actuators 

AirTran Airways notes that the motoroperated shutoff valves are rotable parts 

which can be moved from airplane to 

airplane. AirTran states that the NPRM 

does not address P/N S343T003–39 

actuators that may have been installed 

on airplanes outside of the applicability 

range of the service bulletins referred to 

in the NPRM. 

We infer that AirTran would like us 

to prohibit installation of P/N 

S343T003–39 actuators on any airplane. 

We disagree. No P/N S343T003–39 

actuator is approved to replace either a 

P/N S343T003–56 or P/N S343T003–66 

actuator. Should we determine that P/N 

S343T003–39 is installed and unsafe on 

other airplanes, we might consider 

additional rulemaking. We have not 

changed the AD in this regard. 

Request To Have AD Address P/N 

S343T003–56 Actuators 

AirTran requests that the AD allow for 

installation of either a P/N S343T003–

56 or P/N S343T003–66 actuator in the 

AD. AirTran explains that Boeing 

considers P/N S343T003–56 fully 

interchangeable with P/N S343T003–66 

and states that installing a P/N 

S343T003–56 actuator should meet the 

intent of the AD. 

We disagree; the two actuators are not 

fully interchangeable, but rather only in 

one direction. If an airplane currently 

has a P/N S343T003–56 actuator 

installed, then an operator can install a 

P/N S343T003–66 actuator; if an 

airplane has a P/N S343T003–66 

actuator currently installed, then it is 

not possible to install a P/N S343T003–

56 actuator. However, if an operator has 

a P/N S343T003–56 actuator currently 

installed, no action is required by this 

AD. This AD addresses airplanes that 

currently have a P/N S343T003–39 

actuator installed. The P/N S343T003–

56 actuator has not been approved as a 

field replacement for the P/N 

S343T003–39. However, under the 

provisions of paragraph (i) of the AD, 

we will consider requests for approval 

of an alternative method of compliance 

if sufficient data are submitted to 

substantiate that the design change 

would provide an acceptable level of 

safety. We have not changed the AD in 

this regard. 

Request To Reconsider Mandating 

Installation of P/N S343T003–66 

Actuators 

Boeing requested an ex parte meeting 

with the FAA to discuss the new motoroperated valves, which Boeing states 

have reliability issues in service. Boeing 

states that these issues could affect the 

FAA’s decision to mandate the 

installation fleet-wide. 

During the meeting, held October 10, 

2007, Boeing reviewed problems with 

the actuators and the design changes 

made since 2005. The Special Federal 

Aviation Regulation (SFAR) 88 review 

determined that the electrical switches 

for P/N S343T003–39 actuators were not 

isolated from the actuator shaft that 

enters the tank. During a lightning, hot 

short, or fault current event, it is 

possible that electrical energy could 

enter the fuel tank through the actuator 

shaft. The new P/N S343T003–56 

actuator added an isolation feature, but 

created nuisance failure indications on 

the flight deck. Boeing then developed 

the P/N S343T003–66 actuator to correct 

the indication problem. The P/N 

S343T003–66 actuator reduced the 

number of events, but operators are still 

experiencing dispatch delays and 

unscheduled removals. Boeing also 

pointed out problems with the P/N 

S343T003–66 actuators on other Boeing 

airplane models, though not to the 

extent seen on Boeing Model 737 

airplanes. Boeing is in the process of redesigning the actuator, an effort that 

will take approximately 12 months. 

Boeing specifies that the isolation 

feature is not affected by the indication 

problems, and that the valves are 

opening and closing as commanded. 

We disagree with the request to 

reconsider mandating the installation of 

P/N S343T003–66 actuators. The 

problems with the P/N S343T003–66 

actuators that Boeing pointed out do not 

constitute a new unsafe condition. We 

consider that to delay this particular AD 

action in order to wait for the redesigned actuator would be 

inappropriate, since we have 

determined that an unsafe condition 

exists and that replacement of certain 

parts must be accomplished to ensure 

continued safety. Therefore, no change 

has been made to the AD in this regard. 

However, when a new actuator is 

developed, approved, and available, we 

might consider additional rulemaking 

then. 

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 with the changes described 

previously. We have determined that 

these changes will neither increase the 

economic burden on any operator nor 

increase the scope of the AD. 

Costs of Compliance 

There are about 2,916 airplanes of the 

affected design in the worldwide fleet. 

This AD affects about 1,406 airplanes of 

U.S. registry. The average labor rate is 

$80 per work hour. The table titled 

‘‘Estimated Costs’’ provides costs to 

comply with this AD. 


jlentini on PROD1PC65 with RULES
Federal Register / Vol. 73, No. 49 / Wednesday, March 12, 2008 / Rules and Regulations 13083 

ESTIMATED COSTS

Action Work hours Cost per 

airplane 

Number of 

U.S.-registered 

airplanes 

Fleet cost 

Inspection for motor operated valve actuators ................................................................ 1 $80 1,406 $112,480 

AWL revisions .................................................................................................................. 3 240 1,406 337,440 

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): 

2008–06–03 Boeing: Amendment 39–15415. 

Docket No. FAA–2007–28662; 

Directorate Identifier 2007–NM–014–AD. 

Effective Date 

(a) This AD becomes effective April 16, 

2008. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Boeing Model 737–

600, –700, –700C, –800 and –900 series 

airplanes; and Boeing Model 757–200, 

–200PF, –200CB, and –300 series airplanes; 

certificated in any category; as identified in 

Boeing Alert Service Bulletins 737–28A1207, 

dated February 15, 2007, and 757–28A0088, 

dated January 25, 2007. 

Note 1: This AD requires revisions to 

certain operator maintenance documents to 

include new inspections and maintenance 

actions. Compliance with these limitations is 

required by 14 CFR 43.16 and 91.403(c). For 

airplanes that have been previously 

modified, altered, or repaired in the areas 

addressed by these limitations, the operator 

may not be able to accomplish the actions 

described in the revisions. In this situation, 

to comply with 14 CFR 43.16 and 91.403(c), 

the operator must request approval for 

revision to the airworthiness limitations 

(AWLs) in the Boeing 737–600/700/700C/ 

700IGW/800/900 Maintenance Planning Data 

(MPD) Document D626A001–CMR and the 

Boeing 757 MPD Document D622N001–9, as 

applicable, according to paragraph (i) of this 

AD. 

Unsafe Condition 

(d) This AD results from a design review 

of the fuel tank systems. We are issuing this 

AD to prevent electrical energy from 

lightning, hot shorts, or fault current from 

entering the fuel tank through the actuator 

shaft, which could result in fuel tank 

explosions 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 Bulletin Reference 

(f) The term ‘‘service bulletin,’’ as used in 

this AD, means the Accomplishment 

Instructions of the following service 

bulletins, as applicable: 

(1) For Model 737–600, –700, –700C, –800 

and –900 series airplanes: Boeing Alert 

Service Bulletin 737–28A1207, dated 

February 15, 2007; and 

(2) For Model 757–200, –200PF, –200CB, 

and –300 series airplanes: Boeing Alert 

Service Bulletin 757–28A0088, dated January 

25, 2007. 

Inspection and Related Investigative/ 

Corrective Actions 

(g) Within 60 months after the effective 

date of this AD: Inspect the applicable motoroperated valves (MOVs) to determine 

whether an MOV with the affected part 

number identified in the Accomplishment 

Instructions of the applicable service bulletin 

is installed. A review of airplane 

maintenance records is acceptable in lieu of 

this inspection if the part number of the part 

can be conclusively determined from that 

review. Do all applicable related investigative 

and corrective actions before further flight. 

Do all actions in accordance with the 

Accomplishment Instructions of the 

applicable service bulletin. 

Revision of AWLs Section 

(h) Concurrently with the actions specified 

in paragraph (g) of this AD: Revise the AWLs 

section of the Instructions for Continued 

Airworthiness by incorporating the 

information specified in paragraphs (h)(1) 

and (h)(2) of this AD, as applicable. 

Accomplishing the revision in accordance 

with a later revision of the MPD document 

is an acceptable method of compliance if the 

revision is approved by the Manager, Seattle 

Aircraft Certification Office (ACO), FAA. 

(1) Section F., ‘‘AIRWORTHINESS 

LIMITATIONS—FUEL SYSTEM AWLs,’’ of 

Boeing 737–600/700/700C/700IGW/800/900 

MPD Document D626A001–CMR, Section 9, 

Revision November 2006 R1, into the MPD to 

incorporate AWL No. 28–AWL–21, No. 28–

AWL–22, and No. 28–AWL–24. 

(2) Section G., ‘‘AIRWORTHINESS 

LIMITATIONS—FUEL SYSTEM AWLs,’’ of 


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13084 Federal Register / Vol. 73, No. 49 / Wednesday, March 12, 2008 / Rules and Regulations 

Boeing 757 MPD Document D622N001, 

Section 9, Revision January 2007, into the 

MPD Document to incorporate AWL No. 28–

AWL–23, No. 28–AWL–24, and No. 28–

AWL–25. 

Alternative Methods of Compliance 

(AMOCs) 

(i)(1) The Manager, Seattle 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) 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. 

Material Incorporated by Reference 

(j) You must use the service information 

listed in Table 1 of this AD 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 these 

documents 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 NARA, call 202–741–6030, or go 

to: http://www.archives.gov/federal-register/ 

cfr/ibr-locations.html. 

TABLE 1.—MATERIAL INCORPORATED BY REFERENCE

Service information Revision Date 

Boeing 737–600/700/700C/700IGW/800/900 Maintenance Planning Data Document 

D626A001–CMR, Section 9.

November 2006 R1 ................ November 2006. 

Boeing 757 Maintenance Planning Data Document D622N001, Section 9 ............................ January 2007 ......................... January 2007. 

Boeing Alert Service Bulletin 737–28A1207 ............................................................................ Original ................................... February 15, 2007. 

Boeing Alert Service Bulletin 757–28A0088 ............................................................................ Original ................................... January 25, 2007. 

Issued in Renton, Washington, on February 

28, 2008. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E8–4486 Filed 3–11–08; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2006–25658; Directorate 

Identifier 2006–NM–054–AD; Amendment 

39–15406; AD 2008–05–12] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A318, A319, A320, and A321 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is superseding an 

existing AD that applies to certain 

Airbus Model A318, A319, A320, and 

A321 airplanes. That AD currently 

requires repetitive detailed inspections 

of the inboard flap trunnions for any 

wear marks and of the sliding panels for 

any cracking at the long edges, and 

corrective actions if necessary. This new 

AD adds airplanes that were recently 

added to the type certificate data sheet 

and changes the inspection type. This 

AD results from reports of wear damage 

to the inboard flap trunnions after 

incorporation of the terminating 

modification. We are issuing this AD to 

detect and correct wear of the inboard 

flap trunnions, which could lead to loss 

of flap surface control and consequently 

result in the flap detaching from the 

airplane. A detached flap could result in 

damage to the tail of the airplane. 

DATES: This AD becomes effective April 

16, 2008. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of April 16, 2008. 

On March 24, 2006 (71 FR 8439, 

February 17, 2006), the Director of the 

Federal Register approved the 

incorporation by reference of Airbus 

Service Bulletin A320–57–1133, 

excluding Appendix 01, dated July 28, 

2005. 

On January 8, 2001 (65 FR 75603, 

December 4, 2000), the Director of the 

Federal Register approved the 

incorporation by reference of certain 

other publications listed in the AD. 

ADDRESSES: For service information 

identified in this AD, contact Airbus, 1 

Rond Point Maurice Bellonte, 31707 

Blagnac Cedex, France. 

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: Dan 

Rodina, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–2125; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The FAA issued a second 

supplemental notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that 

supersedes AD 2006–04–06, amendment 

39–14487 (71 FR 8439, February 17, 

2006). The existing AD applies to 

certain Airbus Model A318, A319, 

A320, and A321 airplanes. That second 

supplemental NPRM was published in 

the Federal Register on August 16, 2007 

(72 FR 45982). That second 

supplemental NPRM proposed to 

supersede an existing AD that currently 

requires repetitive detailed inspections 

of the inboard flap trunnions for any 

wear marks and of the sliding panels for 

any cracking at the long edges, and 

corrective actions if necessary. That 

second supplemental NPRM proposed 

to add airplanes that were recently 

added to the type certificate data sheet 

and change the inspection type. 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comments received. 

Request To Include Revised Service 

Information 

Airbus asks that Airbus Service 

Bulletin A320–57–1133, Revision 03, 

dated July 3, 2007, be incorporated into 


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