Federal Register / Vol. 72, No. 89 / Wednesday, May 9, 2007 / Rules and Regulations 26285 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2005–21748; Directorate 

Identifier 2005–NM–071–AD; Amendment 

39–15044; AD 2007–10–03] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 767–200 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 Model 767–200 and –300 series 

airplanes. For certain airplanes, this AD 

requires repetitive inspections for 

discrepancies of the tube assemblies and 

insulation of the metered fire 

extinguisher system and the bleed air 

duct couplings of the auxiliary power 

unit (APU) located in the aft cargo 

compartment, and corrective actions if 

necessary. For certain other airplanes, 

this AD requires a one-time inspection 

for sufficient clearance between the fire 

extinguishing tube and the APU bleed 

air duct in the aft cargo compartment, 

and modification if necessary. This AD 

also requires an inspection for signs of 

chafing and to verify sufficient 

clearance between the fire extinguisher 

system and the bleed air duct couplings 

of the APU. This AD results from one 

report indicating that an operator found 

a hole in the discharge tube assembly 

for the metered fire extinguishing 

system; and another report indicating 

that an operator found chafing of the fire 

extinguishing tube against the APU duct 

that resulted in a crack in the tube. We 

are issuing this AD to prevent fire 

extinguishing agent from leaking out of 

the tube assembly in the aft cargo 

compartment which, in the event of a 

fire in the aft cargo compartment, could 

result in an insufficient concentration of 

fire extinguishing agent, and consequent 

inability of the fire extinguishing system 

to suppress the fire. 

DATES: This AD becomes effective June 

13, 2007. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of June 13, 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: 

Marcia Smith, Aerospace Engineer, 

Cabin Safety and Environmental 

Systems Branch, ANM–150S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6484; 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 

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 supplemental 

notice of proposed rulemaking (NPRM) 

to amend 14 CFR part 39 to include an 

AD that would apply to certain Boeing 

Model 767–200 and –300 series 

airplanes. That supplemental NPRM 

was published in the Federal Register 

on June 7, 2006 (71 FR 32873). For 

certain airplanes, that supplemental 

NPRM proposed to require repetitive 

inspections for discrepancies of the tube 

assemblies and insulation of the 

metered fire extinguisher system and 

the bleed air duct couplings of the 

auxiliary power unit (APU) located in 

the aft cargo compartment; and 

corrective actions if necessary. For 

certain other airplanes, that 

supplemental NPRM proposed to 

require a one-time inspection for 

sufficient clearance between the fire 

extinguishing tube and the APU bleed 

air duct in the aft cargo compartment, 

and modification if necessary. That 

supplemental NPRM also proposed to 

require an inspection for signs of 

chafing and to verify sufficient 

clearance between the fire extinguisher 

system and the bleed air duct couplings 

of the APU. 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comments received. 

Request To Refer to Latest Revision of 

Service Bulletin 

Boeing, the Air Transport Association 

(ATA), on behalf of American Airlines, 

and Japan Airlines ask that we refer to 

Boeing Service Bulletin 767–26A0130, 

Revision 2, dated October 31, 2006, in 

the final rule. We referred to Revision 1 

of the service bulletin dated December 

15, 2005, as the appropriate source of 

service information for doing certain 

actions specified in the supplemental 

NPRM. Japan Airlines states that 

Revision 1 includes incorrect 

requirements, and asks that Revision 2 

be included in the final rule to correct 

the specified requirements. Japan 

Airlines adds that if the final rule is 

issued before issuance of Revision 2 of 

the service bulletin, the mistakes 

(included in Japan Airlines comments) 

should be corrected in the final rule. 

Boeing states that inclusion of Revision 

2 will avoid issuance of a future 

supplemental NPRM. American Airlines 

indicates that Boeing provided it with 

information acknowledging that 

Revision 1 would be revised and 

released in the second quarter of 2006. 

American Airlines recommends that 

Revision 2 refer to the APU duct 

couplings only, not both the APU duct 

and the APU duct couplings. 

We agree to refer to Revision 2 of the 

service bulletin in paragraph (f)(1) of the 

AD. Revision 2 does the following: 

• Corrects certain station numbers. 

• Adds clarification procedures for 

moving the fire extinguisher tube, and 

clarifies the inspection and repair of the 

fire extinguisher tube. 

• Clarifies certain procedures 

specified in Figures 3 through 12, 15, 

and 16. 

• Adds Figures 19 and 20 to clarify 

clamp removal and installation. 

• Adds manpower requirements for 

Figures 19 and 20. 

Revision 2 also refers to the APU duct 

couplings instead of both the APU duct 

and the APU duct couplings in certain 

sections of the Accomplishment 

Instructions. We have revised the AD to 

refer to Revision 2 of the service bulletin 

as the appropriate source of service 

information for doing certain actions. 

We have also revised paragraph (g) of 

this AD to add credit for actions done 

before the effective date of this AD in 

accordance with Boeing Alert Service 

Bulletin 767–26A0130, Revision 1, 

dated December 15, 2005. We 

acknowledge that there were errors in 

certain procedures specified in Revision 

1, but those errors did not prevent 

accomplishing the inspections and any 

applicable corrective actions in a 

manner that would address the 

identified unsafe condition. 


rmajette on PROD1PC67 with RULES
26286 Federal Register / Vol. 72, No. 89 / Wednesday, May 9, 2007 / Rules and Regulations 

Request to Change Note 1 

The ATA, on behalf of its member 

Delta Airlines, asks that Note 1 of the 

supplemental NPRM be changed to omit 

the revision level of Boeing Service 

Bulletin 767–26–0118, Revision 2, dated 

December 21, 2004, so it matches the 

reference to Boeing Alert Service 

Bulletin 767–26A0123. 

We partially agree with the request. In 

Note 1 of the supplemental NPRM 

Boeing Alert Service Bulletin 767–

26A0123, without a date or revision 

level, referred to Boeing Service Bulletin 

767–26–0118, Revision 2, dated 

December 21, 2004, as the appropriate 

source of service information for 

accomplishing the modification of the 

fire extinguishing tube assembly. Since 

the AD must specify a revision level and 

date in the requirements, in lieu of 

removing the revision level and date for 

Boeing Service Bulletin 767–26–0118, 

we have removed Note 1 and added a 

new paragraph (f)(2)(ii) to the AD. 

Paragraph (f)(2)(ii) requires 

accomplishing the modification of the 

fire extinguishing tube assembly in 

accordance with Boeing Service Bulletin 

767–26–0118, Revision 2, dated 

December 21, 2004. We have also added 

a new paragraph (h) to this AD (and reidentified subsequent paragraphs) to 

include credit for previously 

accomplishing the actions specified in 

Boeing Service Bulletin 767–26–0118, 

dated June 20, 2002, or Revision 1, 

dated October 3, 2002. 

Clarification Made to This AD 

We have changed paragraph (f)(1) of 

this AD to clarify the station numbers 

for the fire extinguishing tube 

assemblies. Paragraph (f)(1) of the 

supplemental NPRM proposed to 

require performing detailed and general 

visual inspections for discrepancies of 

the fire extinguishing tube assemblies 

between STA 1197 and STA 1340. 

Those station numbers were incorrectly 

specified in the Summary section of 

Revision 1 of the service bulletin. 

However, paragraph (f)(1) specifies 

doing the actions in accordance with the 

Accomplishment Instructions of the 

service bulletin, and the correct station 

numbers (STA 1140 and STA 1340) are 

specified in the Accomplishment 

Instructions of both Revisions 1 and 2 

of the referenced service bulletin. We 

inadvertently specified STA 1197 in 

paragraph (f)(1), and we have corrected 

that error accordingly. 

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. These changes will neither 

increase the economic burden on any 

operator nor increase the scope of the 

AD. 

Costs of Compliance 

There are about 749 airplanes of the 

affected design in the worldwide fleet. 

The following table provides the 

estimated costs for U.S. operators to 

comply with this AD. 

ESTIMATED COSTS

Action Work hours 

Average 

labor rate 

per hour 

Parts Cost per 

airplane 

Number 

of U.S.- 

registered 

airplanes 

Fleet cost 

Inspection in Service Bulletin 767–26A0123 ..................... 1 $80 None ........ $80 292 $23,360 

Inspection in Service Bulletin 767–26A0130, Revision 2 .. 5 80 None ........ 400 292 116,800 

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): 

2007–10–03 Boeing: Amendment 39–

15044. Docket No. FAA–2005–21748; 

Directorate Identifier 2005-NM–071-AD. 

Effective Date 

(a) This AD becomes effective June 13, 

2007. 

Affected ADs 

(b) None. 


rmajette on PROD1PC67 with RULES
Federal Register / Vol. 72, No. 89 / Wednesday, May 9, 2007 / Rules and Regulations 26287 

Applicability 

(c) This AD applies to Boeing Model 767–

200 and –300 series airplanes; certificated in 

any category; with a metered fire 

extinguisher system in the aft cargo 

compartment. 

Unsafe Condition 

(d) This AD was prompted by one report 

indicating that an operator found a hole in 

the discharge tube assembly for the metered 

fire extinguishing system; and another report 

indicating that an operator found chafing of 

the fire extinguishing tube against the 

auxiliary power unit (APU) duct that resulted 

in a crack in the tube. We are issuing this AD 

to prevent fire extinguishing agent from 

leaking out of the tube assembly in the aft 

cargo compartment which, in the event of a 

fire in the aft cargo compartment, could 

result in an insufficient concentration of fire 

extinguishing agent, and consequent inability 

of the fire extinguishing system to suppress 

the fire. 

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. 

Inspections and Corrective Actions 

(f) Within 24 months or 8,000 flight hours 

after the effective date of this AD, whichever 

is first: Accomplish the actions required by 

paragraphs (f)(1) and (f)(2) of this AD, as 

applicable. 

(1) For airplanes identified in Boeing 

Service Bulletin 767–26A0130, Revision 2, 

dated October 31, 2006: Perform detailed and 

general visual inspections for discrepancies 

of the fire extinguishing tube assemblies 

between station (STA) 1140 and STA 1340, 

and the insulation of the metered fire 

extinguisher system and the bleed air duct 

couplings of the APU located in the aft cargo 

compartment, and any applicable corrective 

actions, by doing all the applicable actions 

specified in the Accomplishment 

Instructions of Boeing Service Bulletin 767–

26A0130, Revision 2, dated October 31, 2006. 

Do all applicable corrective actions before 

further flight in accordance with the service 

bulletin. Repeat the inspections thereafter at 

intervals not to exceed 24 months or 8,000 

flight hours, whichever is first. Installation of 

the tube assembly in the correct location, in 

accordance with the service bulletin, 

terminates the repetitive inspections for that 

assembly only. 

(2) For airplanes identified in Boeing Alert 

Service Bulletin 767–26A0123, dated August 

22, 2002: Accomplish the actions required by 

paragraphs (f)(2)(i) and (f)(2)(ii) of this AD, as 

applicable. 

(i) Perform a general visual inspection for 

sufficient clearance between the fire 

extinguishing tube and the APU duct on the 

left sidewall from STA 1355 through 1365 

inclusive, and do all applicable 

modifications, by doing all the actions 

specified in the Accomplishment 

Instructions of Boeing Alert Service Bulletin 

767–26A0123, dated August 22, 2002. Do all 

applicable modifications before further flight. 

(ii) If there is insufficient clearance 

between the fire extinguishing tube and the 

APU duct: Before further flight, accomplish 

the modification of the fire extinguishing 

tube assembly by doing all the actions 

specified in the Accomplishment 

Instructions of Boeing Service Bulletin 767–

26–0118, Revision 2, dated December 21, 

2004. Accomplishing the modification in this 

paragraph terminates the repetitive 

inspections for that assembly only. 

Credit for Actions Accomplished Previously 

(g) Accomplishing the inspections and 

corrective actions required by paragraph 

(f)(1) of this AD before the effective date of 

this AD, in accordance with Boeing Alert 

Service Bulletin 767–26A0130, dated 

December 2, 2004, or Revision 1, dated 

December 15, 2005; is considered acceptable 

for compliance with the corresponding 

actions in paragraph (f)(1) of this AD. 

(h) Accomplishing the actions required by 

paragraph (f)(2)(ii) of this AD before the 

effective date of this AD, in accordance with 

Boeing Service Bulletin 767–26–0118, dated 

June 20, 2002, or Revision 1, dated October 

3, 2002; is considered acceptable for 

compliance with the corresponding actions 

in paragraph (f)(2)(ii) of this AD for 

accomplishing the modification of the fire 

extinguishing tube assembly. 

Alternative Methods of Compliance 

(AMOCs) 

(i)(1) The Manager, Seattle Aircraft 

Certification Office, 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. 

Material Incorporated by Reference 

(j) You must use Boeing Service Bulletin 

767–26A0130, Revision 2, dated October 31, 

2006; Boeing Alert Service Bulletin 767–

26A0123, dated August 22, 2002; and Boeing 

Service Bulletin 767–26–0118, Revision 2, 

dated December 21, 2004; as applicable; 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. 

Issued in Renton, Washington, on April 30, 

2007. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E7–8767 Filed 5–8–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA 2007–27512, Airspace 

Docket No. 07–AEA–01] 

Establishment of Class E Airspace; 

Front Royal-Warren County, VA 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Direct final rule; request for 

comments. 

SUMMARY: This action establishes a Class 

E airspace area at Front Royal-Warren 

County Airport, Front Royal, VA (KFFR) 

to provide for adequate controlled 

airspace for those aircraft using the new 

Area Navigation (RNAV) Instrument 

Approach Procedure to the Airport. 

DATES: Effective 0901 UTC, July 5, 2007. 

The Director of the Federal Register 

approves this incorporation by reference 

action under 1 CFR part 51, subject to 

the annual revision of FAA Order 

7400.9 and publication of conforming 

amendments. 

Comments for inclusion in the Rules 

Docket must be received on or before 

June 8, 2007. 

ADDRESSES: Send comments on the rule 

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–2007–

27512; airspace docket number, 07–

AEA–01, at the beginning of your 

comments. You may also submit 

comments on the Internet at http:// 

dms.dot.gov. You may review the public 

docket containing the proposal, any 

comments received, and any final 

disposition in person at the Dockets 

Office between 9 a.m. and 5 p.m., 

Monday through Friday, except Federal 

holidays. The Docket Office (telephone 

1–800–647–5527) is located on the plaza 

level of the Department of 

Transportation NASSIF Building at the 

street address stated above. 

An informal docket may be examined 

during normal business hours in the 

FAA Eastern Service Center, by 

contacting the Manager, Systems 

Support, AJO–2E2, Federal Aviation 

Administration, Eastern Service Center, 

1701 Columbia Ave, College Park, GA, 

30337. 

FOR FURTHER INFORMATION CONTACT: 

Mark D. Ward, Manager, Systems 

Support, AJO–2E2, FAA Eastern Service 

Center, 1701 Columbia Ave., College 

Park, GA, 30337; telephone (404) 305–

5570; fax (404) 305–5099. 


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