68384 Federal Register / Vol. 70, No. 217 / Thursday, November 10, 2005 / Proposed Rules 

Chicago Aircraft Certification Office, has the 

authority to approve alternative methods of 

compliance for RRC gas producer rotor 

assembly tie bolts addressed in this AD, if 

requested, using the procedures found in 14 

CFR 39.19. The Manager, Southwest Special 

Certification Office, has the authority to 

approve alternative methods of compliance 

for SAP gas producer rotor assembly tie bolts 

addressed in this AD, if requested, using the 

procedures found in 14 CFR 39.19. 

Material Incorporated by Reference 

(i) None. 

Related Information 

(j) RRC Commercial Engine Bulletin (CEB) 

CEB A–304, CEB A–1371, CEB A–72–4076, 

TP CEB A–176, TP CEB A–1319, TP CEB A–

72–2027, Revision N/C dated May 23, 2005, 

and EXTEX Service Bulletin T–090, Revision 

N/C, dated May 23, 2005, pertain to the 

subject of this AD. 

Issued in Burlington, Massachusetts, on 

November 4, 2005. 

Peter A. White, 

Acting Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 05–22437 Filed 11–9–05; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2005–22919; Directorate 

Identifier 2005–NM–087–AD] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A319–100, A320–200, A321–100, and 

A321–200 Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Airbus Model A319–100, A320–

200, A321–100, and A321–200 series 

airplanes. This proposed AD would 

require repetitive inspections for 

corrosion in the inside and outside 

lower walls of each type A, D, E, and F 

lavatory wall that has at least one wallmounted cabin attendant seat, and 

related investigative and corrective 

actions if necessary. The repetitive 

inspections may be terminated by 

repairing the wall with composite 

material, or replacing the entire wall 

with a new wall made of composite 

material. This proposed AD results from 

reports of corrosion in the lower part of 

the lavatory walls due to water ingress. 

We are proposing this AD to detect and 

correct corrosion and damage on the 

lower part of the lavatory walls, which 

could compromise the structural 

integrity of the cabin attendant seat 

attachments, and cause injury to the 

cabin attendants during a crash landing. 

DATES: We must receive comments on 

this proposed AD by December 12, 

2005. 

ADDRESSES: Use one of the following 

addresses to submit comments on this 

proposed AD. 

• DOT Docket Web site: Go to 

http://dms.dot.gov and follow the 

instructions for sending your comments 

electronically. 

• Government-wide rulemaking Web 

site: Go to http://www.regulations.gov 

and follow the instructions for sending 

your comments electronically. 

• Mail: Docket Management Facility, 

U.S. Department of Transportation, 400 

Seventh Street, SW., Nassif Building, 

Room PL–401, Washington, DC 20590. 

• By fax: (202) 493–2251. 

• Hand Delivery: Room PL–401 on 

the plaza level of the Nassif Building, 

400 Seventh Street, SW., Washington, 

DC, between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

For service information identified in 

this proposed AD, contact Airbus, 1 

Rond Point Maurice Bellonte, 31707 

Blagnac Cedex, France. 

You can examine the contents of this 

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., room PL–401, on the plaza level of 

the Nassif Building, Washington, DC. 

This docket number is FAA–2005–

22919; the directorate identifier for this 

docket is 2005–NM–087–AD. 

FOR FURTHER INFORMATION CONTACT: Tim 

Dulin, Aerospace Engineer, 

International Branch, ANM–116, FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington 

98055–4056; telephone (425) 227–2141; 

fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to submit any relevant 

written data, views, or arguments 

regarding this proposed AD. Send your 

comments to an address listed under 

ADDRESSES. Include ‘‘Docket No. FAA–

2005–22919; Directorate Identifier 

2005–NM–087–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of the proposed AD. We will 

consider all comments submitted by the 

closing date and may amend the 

proposed AD in light of those 

comments. 

We will post all comments we 

receive, without change, to http:// 

dms.dot.gov, including any personal 

information you provide. We will also 

post a report summarizing each 

substantive verbal contact with FAA 

personnel concerning this proposed AD. 

Using the search function of our docket 

Web site, anyone can find and read the 

comments in any of our dockets, 

including the name of the individual 

who sent the comment (or signed the 

comment on behalf of an association, 

business, labor union, etc.). You can 

review the DOT’s complete Privacy Act 

Statement in the Federal Register 

published on April 11, 2000 (65 FR 

19477–78), or you can visit http:// 

dms.dot.gov. 

Examining the Docket 

You can 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 

Management Facility office (telephone 

(800) 647–5227) is located on the plaza 

level of the Nassif Building at the DOT 

street address stated in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after the Docket 

Management System (DMS) receives 

them. 

Discussion 

The Direction Ge ́ne ́rale de l’Aviation 

Civile (DGAC), which is the 

airworthiness authority for France, 

notified us that an unsafe condition may 

exist on certain Airbus Model A319–

100, A320–200, A321–100, and A321–

200 series airplanes. The DGAC advises 

that an operator reported cracks in the 

lavatory floor pans of the affected 

airplanes in its fleet. Further 

investigation showed that the cracks 

resulted from corrosion in the lower 

part of the lavatory wall, possibly 

caused by liquid that entered during 

cleaning and operation, and by rain 

entering through the main entry door. 

Extensive corrosion of the lower part of 

the lavatory wall could compromise the 

structural integrity of the cabin 

attendant seat (CAS) attachments. This 

condition, if not corrected, could result 

in injury to the cabin attendants during 

a crash landing. 

Relevant Service Information 

Airbus has issued Service Bulletin 

A320–25–1365, dated February 18, 

2005. The service bulletin describes 

procedures for doing a repetitive 

detailed visual inspection for corrosion 

Federal Register / Vol. 70, No. 217 / Thursday, November 10, 2005 / Proposed Rules 68385 

and damage in the inside and outside 

lower walls of each type A, D, E, and F 

lavatory wall that has at least one wallmounted CAS. The service bulletin also 

describes procedures for related 

investigative and corrective actions if 

necessary, including any supporting 

non-destructive testing. The related 

investigative and corrective actions are 

as follows: 

If no corrosion is detected, the service 

bulletin describes procedures for 

repeating the inspection. If any 

corrosion or damage is detected during 

any inspection that does not exceed the 

allowable limits specified in the service 

bulletin, the service bulletin gives 

procedures for cleaning the area with 

cleaning agent, protecting against 

further corrosion, operating the CAS 

within specified limits, repeating the 

inspection, and, within a specified 

amount of time, repairing the corroded 

wall. 

If any corrosion or damage is detected 

during any inspection that does exceed 

the allowable limits specified in the 

service bulletin, the service bulletin 

gives procedures for repairing the wall 

within a specified amount of time, and 

specifies not to use the affected CAS 

until the wall is repaired. 

The repair depends on the extent of 

damage and includes doing one of the 

following, as applicable: 

• Installing a temporary aluminum 

repair for the existing aluminum 

lavatory wall in accordance with 

procedures in the service bulletin; 

• Repairing the lower attachments of 

the existing aluminum lavatory walls in 

accordance with the lavatory 

component maintenance manual 

(CMM); 

• Repairing the existing aluminum 

lavatory wall with composite material in 

accordance with the lavatory CMM (the 

service bulletin specifies that no further 

action is necessary after this repair); or 

• Replacing the existing aluminum 

lavatory wall with a composite wall in 

accordance with the lavatory CMM, or 

in accordance with additional Airbus 

service bulletins described below, as 

applicable. (The service bulletin 

specifies that no further action is 

necessary after this repair). 

Doing the temporary aluminum repair 

in accordance with the service bulletin 

ends the repetitive inspections in the 

service bulletin. However, the service 

bulletin specifies that operators who do 

the temporary aluminum repair should, 

within 18 months, repair the wall with 

composite material, or permanently 

replace the aluminum wall with a new 

wall made of composite material. For 

lavatories that have the repair to the 

lower attachments of the aluminum 

lavatory wall in accordance with the 

lavatory CMM, the service bulletin 

specifies that operators repeat the 

detailed visual inspection until the 

aluminum wall has the temporary 

aluminum repair, or until it is repaired 

with composite material, or until it is 

permanently replaced with a new wall 

made of composite material. 

The service bulletin notes that the 

temporary aluminum repair and the 

repair to the lower attachments of the 

aluminum lavatory walls can each be 

done only one time. If any inspection 

shows corrosion damage after the lower 

attachments are repaired, the service 

bulletin states that the wall must have 

the temporary aluminum repair, or the 

composite repair, or be replaced with a 

new wall made of composite material; 

as applicable to the extent of damage. 

Airbus has also issued Service 

Bulletin A320–25–1289, Revision 01, 

dated October 29, 2003 (for lavatory A); 

and Service Bulletin A320–25–1357, 

dated July 19, 2004 (for lavatory F). 

These service bulletins describe 

procedures for replacing the existing 

aluminum lavatory wall for lavatory 

types A and F respectively, with a wall 

made of composite material. 

The compliance times for doing the 

inspections and related investigative 

and corrective actions described above 

are summarized in Figure 1 Sheet 1 of 

Airbus Service Bulletin A320–25–1365, 

dated February 18, 2005. The intervals 

for repeating the detailed inspection are 

from 15 months to 18 months 

depending on previous repairs. The 

compliance time specified for doing 

applicable repairs ranges from 600 flight 

hours to 18 months, depending on the 

extent of the damage. 

We have determined that 

accomplishment of the actions specified 

in the service information will 

adequately address the unsafe 

condition. The DGAC mandated the 

service information and issued French 

airworthiness directive F–2005–046, 

dated March 16, 2005, to ensure the 

continued airworthiness of these 

airplanes in France. 

FAA’s Determination and Requirements 

of the Proposed AD 

These airplane models are 

manufactured in France and are type 

certificated for operation in the United 

States under the provisions of section 

21.29 of the Federal Aviation 

Regulations (14 CFR 21.29) and the 

applicable bilateral airworthiness 

agreement. Pursuant to this bilateral 

airworthiness agreement, the DGAC has 

kept the FAA informed of the situation 

described above. We have examined the 

DGAC’s findings, evaluated all pertinent 

information, and determined that we 

need to issue an AD for products of this 

type design that are certificated for 

operation in the United States. 

Therefore, we are proposing this AD, 

which would require accomplishing the 

actions specified in the service 

information described previously. 

Clarification of Inspection Terminology 

In this proposed AD, the ‘‘detailed 

visual inspection’’ specified in the 

Airbus service bulletin is referred to as 

a ‘‘detailed inspection.’’ We have 

included the definition for a detailed 

inspection in a note in the proposed AD. 

Costs of Compliance 

This proposed AD would affect about 

393 airplanes of U.S. registry. The 

proposed inspection would take about 2 

work hours per lavatory, at an average 

labor rate of $65 per work hour. Based 

on these figures, the estimated cost of 

the proposed AD for U.S. operators is 

$51,090, or $130 per lavatory, per 

inspection 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 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would not 

have a substantial direct effect on the 

States, on the relationship between the 

National Government and the States, or 

on the distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that the proposed regulation: 

1. Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866; 

68386 Federal Register / Vol. 70, No. 217 / Thursday, November 10, 2005 / Proposed Rules 

2. Is not a ‘‘significant rule’’ under the 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979); and 

3. Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD. 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, Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive (AD): 

Airbus: Docket No. FAA–2005–22919; 

Directorate Identifier 2005–NM–087–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

must receive comments on this AD action by 

December 12, 2005. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Airbus Model A319–

111, –112, –113, –114, –115, –131, –132, and 

–133 airplanes; Model A320–211, –212, –214, 

–231, –232, and –233 airplanes; Model 

A321–111, –112, and –131 airplanes; and 

Model A321–211 and –231 airplanes; 

certificated in any category; equipped with 

the lavatories in Table 1 of this AD, onto 

which at least one cabin attendant seat (CAS) 

is attached; except those airplanes with 

lavatory walls that have not been modified 

since the application of Airbus Modification 

31574 in production. 

TABLE 1.—LAVATORY INSTALLATIONS

AFFECTED BY THIS AD 

Lavatory— Installed by Airbus 

modification—

Type A DASELL ............. 23125 

Type D DASELL ............. 22815 

Type E DASELL ............. 22819 

Type F DASELL ............. 23695 

Unsafe Condition 

(d) This AD results from reports of 

corrosion in the lower part of the lavatory 

walls due to water ingress. We are issuing 

this AD to detect and correct corrosion and 

damage on the lower part of the lavatory 

walls, which could compromise the 

structural integrity of the CAS attachments, 

and cause injury to the cabin attendants 

during a crash landing. 

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) For the purposes of this AD, unless 

otherwise specified, the term ‘‘service 

bulletin’’ means the Accomplishment 

Instructions of Airbus Service Bulletin A320–

25–1365, dated February 18, 2005. 

Repetitive Inspections and Corrective 

Actions 

(g) Within 2,400 flight hours or 15 months 

after the effective date of this AD, whichever 

occurs earlier: Do a detailed inspection for 

corrosion and damage in the inside and 

outside lower walls of each type A, D, E, and 

F lavatory wall that has at least one wallmounted CAS, and do all applicable related 

investigative and corrective actions if 

necessary, including any supporting nondestructive testing and related investigative 

actions. Do all actions in accordance with the 

procedures and time-frames defined in the 

Accomplishment Instructions of the service 

bulletin. Repeat the inspection at the 

applicable time specified in Figure 1 Sheet 1 

of the service bulletin. 

Note 1: 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.’’

Optional Terminating Action 

(h) Doing the permanent repair in 

paragraph (h)(1) or (h)(2) of this AD 

terminates the repetitive inspection 

requirements of this AD. 

(1) Repair the aluminum wall with 

composite material in accordance with the 

lavatory component maintenance manual 

(CMM). 

(2) Replace the aluminum wall with a new 

wall made of composite material in 

accordance with the Accomplishment 

Instructions of the applicable service bulletin 

in paragraph (h)(2)(i), (h)(2)(ii), or (h)(2)(iii) 

of this AD. 

(i) For lavatory A: Airbus Service Bulletin 

A320–25–1289, Revision 01, dated October 

29, 2003. 

(ii) For lavatories D and E: Airbus Service 

Bulletin A320–25–1365, dated February 18, 

2005, which references the lavatory CMM as 

an additional source of service information 

for doing the replacement. 

(iii) For lavatory F: Airbus Service Bulletin 

A320–25–1357, dated July 19, 2004. 

Actions Accomplished in Accordance With 

Previous Issue of a Service Bulletin 

(i) Replacement of the lavatory A wall done 

before the effective date of this AD in 

accordance with Airbus Service Bulletin 

A320–25–1289, dated October 11, 2002, is 

acceptable for compliance with the 

requirements of paragraph (h)(2)(i) of this 

AD. 

Alternative Methods of Compliance 

(AMOCs) 

(j)(1) The Manager, International Branch, 

ANM–116, Transport Airplane Directorate, 

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. 

Related Information 

(k) French airworthiness directive F–2005–

046, dated March 16, 2005, also addresses the 

subject of this AD. 

Issued in Renton, Washington, on October 

31, 2005. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 05–22443 Filed 11–9–05; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2005–22745; Airspace 

Docket No. 05–ACE–31] 

Proposed Establishment of Class E5 

Airspace; Hill City, KS 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: This notice proposes to 

establish Class E5 airspace at Hill City, 

KS. 

DATES: Comments for inclusion in the 

Rules Docket must be received on or 

before November 30, 2005. 

ADDRESSES: Send comments on this 

proposal to the Docket Management 

System, U.S. Department of 

Transportation, Room Plaza 401, 400 

Seventh Street, SW., Washington, DC 

20590–0001. You must identify the 

docket number FAA–2005–22745/ 

Airspace Docket No. 05–ACE–31, at the 

beginning of your comments. You may 

also submit comments on the Internet at 

http://dms.dot.gov. You may review the