71212 Federal Register / Vol. 72, No. 241 / Monday, December 17, 2007 / Rules and Regulations 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this AD. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

Section 106, describes the authority of 

the FAA Administrator. Subtitle VII, 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in Subtitle VII, 

Part A, Subpart III, Section 44701, 

‘‘General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We have determined that this AD will 

not have federalism implications under 

Executive Order 13132. This AD will 

not have a substantial direct effect on 

the States, on the relationship between 

the national government and the States, 

or on the distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that the regulation: 

1. Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866; 

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

DOT Regulatory Policies and Procedures 

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

3. Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this AD and placed it in the AD docket. 

See the ADDRESSES section for a location 

to examine the regulatory evaluation. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

■ Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 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): 

2007–26–06 Boeing: Amendment 39–15308. 

Docket No. FAA–2007–0336; Directorate 

Identifier 2007–NM–201–AD. 

Effective Date 

(a) This AD becomes effective January 2, 

2008. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Boeing Model 747–

200B, 747–300, and 747–400 series airplanes, 

certificated in any category; as identified in 

Boeing Service Bulletin 747–35–2119, dated 

November 30, 2006. 

Unsafe Condition 

(d) This AD results from a report that 

several passenger masks with broken in-line 

flow indicators were found following a mask 

deployment. We are issuing this AD to 

prevent the in-line flow indicators of the 

passenger oxygen masks from fracturing and 

separating, which could inhibit oxygen flow 

to the masks and consequently result in 

exposure of the passengers and cabin 

attendants to hypoxia following a 

depressurization event. 

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. 

Inspection and Related Investigative/ 

Corrective Actions if Necessary 

(f) Within 60 months after the effective 

date of this AD, do a general visual 

inspection to determine the manufacturer 

and manufacture date of the oxygen masks in 

each of the oxygen boxes in the passenger 

service units of the outboard and center main 

deck, the flight attendant service units, 

flightcrew rest, upper and lower module of 

the door 5 overhead crew rest, lavatory 

modules, and miscellaneous ceiling panels, 

as applicable, and do all the applicable 

related investigative and corrective actions, 

by accomplishing all of the applicable 

actions specified in the Accomplishment 

Instructions of Boeing Service Bulletin 747–

35–2119, dated November 30, 2006; except 

where the service bulletin specifies replacing 

the oxygen mask assembly with a new 

oxygen mask assembly, replace it with a new 

or modified oxygen mask assembly having an 

improved flow indicator. The related 

investigative and corrective actions must be 

done before further flight. 

Note 1: The service bulletin refers to B/E 

Aerospace Service Bulletin 174080–35–01, 

dated February 6, 2006; and Revision 1, 

dated May 1, 2006; as additional sources of 

service information for modifying the oxygen 

mask assembly by replacing the flow 

indicator with an improved flow indicator. 

Alternative Methods of Compliance 

(AMOCs) 

(g)(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) 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 

(h) You must use Boeing Service Bulletin 

747–35–2119, dated November 30, 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 NARA, call 202–741–6030, or go 

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

cfr/ibr-locations.html. 

Issued in Renton, Washington, on 

December 10, 2007. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E7–24334 Filed 12–14–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–28854; Directorate 

Identifier 2007–NM–109–AD; Amendment 

39–15307; AD 2007–26–05] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 777–200, –200LR, –300, and 

–300ER 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 all 


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Federal Register / Vol. 72, No. 241 / Monday, December 17, 2007 / Rules and Regulations 71213 

Boeing Model 777–200, –200LR, –300, 

and –300ER series airplanes. This AD 

requires doing initial and repetitive 

inspections for cracking of the elevator 

actuator fittings, and replacing any 

cracked fitting with a new fitting. This 

AD results from a report that a cracked 

left elevator actuator fitting was found 

on a Model 777 airplane. We are issuing 

this AD to detect and correct a cracked 

actuator fitting, which could detach 

from the elevator and lead to an 

unrestrained elevator and an 

unacceptable flutter condition, which 

could result in loss of airplane control. 

DATES: This AD becomes effective 

January 22, 2008. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of January 22, 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: Gary 

Oltman, Aerospace Engineer, Airframe 

Branch, ANM–120S, FAA, Seattle 

Aircraft Certification Office, 1601 Lind 

Avenue, SW., Renton, Washington 

98057–3356; telephone (425) 917–6443; 

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 all Boeing Model 777–200, 

–200LR, –300, and –300ER series 

airplanes. That NPRM was published in 

the Federal Register on August 2, 2007 

(72 FR 42326). That NPRM proposed to 

require doing initial and repetitive 

inspections for cracking of the elevator 

actuator fittings, and replacing any 

cracked fitting with a new fitting. 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comments received. 

Request To Revise Incorrect Wording 

Two commenters, Boeing and 

Continental Airlines, request that we 

revise an incorrect word in the NPRM. 

The commenters state that, under the 

Relevant Service Information section of 

the NPRM, the third bulleted item, 

which reads, in part, ‘‘before the 

accumulation of 10,000 total flight 

cycles or within 12 months after the 

date on the service bulletin, whichever 

occurs first,’’ should actually read 

‘‘* * * whichever occurs later.’’ The 

commenters request that we make this 

change so the NPRM will conform to the 

actual compliance time specified by 

Boeing Alert Service Bulletin 777–

55A0015, dated April 19, 2007, which is 

cited as the appropriate source of 

service information for accomplishing 

the proposed requirements of the 

NPRM. 

We partially agree with this request. 

We agree that the specified word ‘‘first’’

should be ‘‘later,’’ to conform to the 

service bulletin. However, the Relevant 

Service Information section of the 

NPRM is not carried forward in the final 

rule; therefore, it is not necessary to 

change the AD in this regard. 

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 619 airplanes of the 

affected design in the worldwide fleet. 

This AD affects about 138 airplanes of 

U.S. registry. The required inspections 

take about 4 work hours per airplane, 

per inspection cycle, at an average labor 

rate of $80 per work hour. Based on 

these figures, the estimated cost of the 

AD for U.S. operators is $44,160, or 

$320 per airplane, 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 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): 

2007–26–05 Boeing: Amendment 39–15307. 

Docket No. FAA–2007–28854; 

Directorate Identifier 2007–NM–109–AD. 

Effective Date 

(a) This AD becomes effective January 22, 

2008. 


ebenthall on PROD1PC69 with RULES
71214 Federal Register / Vol. 72, No. 241 / Monday, December 17, 2007 / Rules and Regulations 

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 a report that a 

cracked left elevator actuator fitting was 

found on a Model 777 airplane. We are 

issuing this AD to detect and correct a 

cracked actuator fitting, which could detach 

from the elevator and lead to an unrestrained 

elevator and an unacceptable flutter 

condition, which could result in loss of 

airplane control. 

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 

(f) At the applicable time specified in 

paragraph 1.E. ‘‘Compliance’’ of Boeing Alert 

Service Bulletin 777–55A0015, dated April 

19, 2007, do an initial dye penetrant or highfrequency eddy current (HFEC) inspection for 

cracking of the elevator actuator fittings, and, 

thereafter, do repetitive dye penetrant, HFEC, 

or detailed inspections at the applicable 

times specified in paragraph 1.E. 

‘‘Compliance.’’ Before further flight, replace 

any fitting found to be cracked during any 

inspection required by this AD with a new 

fitting having the same part number, or an 

optional part number as identified in the 

service bulletin. Thereafter, do initial and 

repetitive inspections of the replacement 

fitting as described in paragraph 1.E. of the 

service bulletin. Do all inspections and 

actions described in this paragraph in 

accordance with the Accomplishment 

Instructions of the service bulletin; except, 

where the service bulletin specifies a 

compliance time after the date on the service 

bulletin, this AD requires compliance within 

the specified compliance time after the 

effective date of this AD. 

Alternative Methods of Compliance 

(AMOCs) 

(g)(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) 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. 

(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 

(h) You must use Boeing Alert Service 

Bulletin 777–55A0015, dated April 19, 2007, 

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 NARA, call 202–741–6030, or go 

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

cfr/ibr-locations.html. 

Issued in Renton, Washington, on 

December 10, 2007. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E7–24338 Filed 12–14–07; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–28990; Directorate 

Identifier 2007–NM–033–AD; Amendment 

39–15304; AD 2007–26–02] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 757–200, –200CB, and –300 

Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Boeing Model 757–200, –200CB, and 

–300 series airplanes. This AD requires 

repetitive detailed inspections with a 

borescope for cracks of the intercostal 

tee clips; or repetitive detailed 

inspections for cracks of the intercostal 

tee clips and attachment fasteners at the 

number 3 and number 4 doorstops of 

the passenger door cutouts; and related 

investigative and corrective actions if 

necessary. This AD also provides an 

optional terminating action for the 

repetitive inspections. This AD results 

from reports of cracked intercostal tee 

clips at the number 3 and number 4 

doorstops of the passenger door cutouts. 

We are issuing this AD to detect and 

correct cracking of the tee clips, which 

could result in additional stress on the 

adjacent tee clips, surrounding 

intercostals, edge frame, door structure 

and doorstops. This additional stress 

could cause further cracking or breaking 

of the tee clips, which could result in 

failure of the door to seal and 

consequent rapid decompression of the 

airplane. 

DATES: This AD is effective January 22, 

2008. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of January 22, 2008. 

We must receive comments on this 

AD by January 22, 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: 

Jason Deutschman, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6449; fax (425) 917–6590. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an airworthiness 

directive (AD) that would apply to 

certain Boeing Model 757–200, –200CB, 

and –300 series airplanes. That NPRM 

was published in the Federal Register 

on August 16, 2007 (72 FR 45961). That 

NPRM proposed to require repetitive 

inspections for cracks of the intercostal 

tee clips and attachment fasteners at the 

number 3 and number 4 doorstops of 

the passenger door cutouts, or repetitive 

inspections for cracks of the intercostal 

tee clips; and related investigative/ 

corrective actions if necessary. That 

NPRM also provides an optional 


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