72558 Federal Register / Vol. 78, No. 232 / Tuesday, December 3, 2013 / Rules and Regulations 

Gulfstream P/N 1159SCP500–5 on any 

airplane. 

(l) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Atlanta Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. In accordance with 14 CFR 39.19, 

send your request to your principal inspector 

or local Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the ACO, send it to the 

attention of the person identified in 

paragraph (m) of this AD. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/

certificate holding district office. 

(m) Related Information 

For more information about this AD, 

contact Darby Mirocha, Aerospace Engineer, 

Propulsion and Services Branch, ACE–118A, 

FAA, Atlanta ACO, 1701 Columbia Avenue, 

College Park, GA 30337; phone: (404) 474– 

5573; fax: (404) 474–5606; email: 

darby.mirocha@faa.gov. 

(n) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Gulfstream V Customer Bulletin 197, 

dated April 11, 2012. 

(ii) Gulfstream G550 Customer Bulletin 

122, dated April 11, 2012. 

(iii) Triumph Service Bulletin SB–TAGV/

GVSP–28–JG0162, dated August 30, 2011. 

(iv) General Electric Service Bulletin 

31760–28–100, dated February 15, 2011. 

(v) Gulfstream Document GV–GER–0003, 

Instructions for Continued Airworthiness, 

Fuel Boost Pump with Leak Check Port, 

dated November 24, 2010. 

(3) For Gulfstream, Triumph 

Aerostructures, and General Electric Aviation 

service information identified in this AD, 

contact Gulfstream Aerospace Corporation, 

Technical Publications Dept., P.O. Box 2206, 

Savannah, GA 31402–2206; telephone 800– 

810–4853; fax 912–965–3520; email pubs@

gulfstream.com; Internet 

http://www.gulfstream.com/product_

support/technical_pubs/pubs/index.htm. 

(4) You may view this service information 

at the FAA, Transport Airplane Directorate, 

1601 Lind Avenue SW., Renton, Washington. 

For information on the availability of this 

material at the FAA, call 425–227–1221. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Renton, Washington, on October 

25, 2013. 

Jeffrey E. Duven, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2013–28860 Filed 12–2–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1317; Directorate 

Identifier 2011–NM–194–AD; Amendment 

39–17687; AD 2013–24–13] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 737–100, 

–200, –200C, –300, –400, –500, –600, 

–700, –700C, –800, and –900 series 

airplanes. This AD was prompted by a 

report that the seat track attachment of 

body station 520 flexible joint is 

structurally deficient in resisting a 9g 

forward emergency load condition in 

certain seating configurations. This AD 

requires replacing the pivot link 

assembly on certain seats, modifying the 

existing seat track link assembly 

fastener on certain seats, or replacing 

the seat track link assemblies on certain 

seats. Also, for certain airplanes, this 

AD requires installing a new seat track 

link assembly or modifying the seat 

track link assembly. For certain other 

airplanes, this AD requires inspecting, 

changing, or repairing the seat track link 

assembly. We are issuing this AD to 

prevent seat detachment in an 

emergency landing, which could cause 

injury to occupants of the passenger 

compartment and affect emergency 

egress. 

DATES: This AD is effective January 7, 

2014. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of January 7, 2014. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, WA 98124–2207; 

telephone 206–544–5000, extension 1; 

fax 206–766–5680; Internet https://

www.myboeingfleet.com. You may view 

this referenced service information at 

the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., 

Renton, WA. For information on the 

availability of this material at the FAA, 

call 425–227–1221. 

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 (phone: 800–647–5527) is 

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: 

Sarah Piccola, Aerospace Engineer, 

Cabin Safety and Environmental 

Systems Branch, ANM–150S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; phone: 425–917–6483; fax: 

425–917–6590; email: sarah.piccola@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to the specified products. The 

NPRM published in the Federal 

Register on January 16, 2013 (78 FR 

3365). The NPRM proposed to require 

replacing the pivot link assembly on 

certain seats, and modifying or 

replacing the seat track link assemblies 

on certain seats. Also, for certain 

airplanes, the NPRM proposed to 

require installing a new seat track link 

assembly. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal (78 FR 3365, 

January 16, 2013) and the FAA’s 

response to each comment. 

Request To Incorporate Revised Service 

Information 

Boeing concurred with the content of 

the NPRM (78 FR 3365, January 16, 

2013), but requested that we incorporate 

Boeing Special Attention Service 

Bulletin 737–53–1260, Revision 1, dated 

May 23, 2013, in the AD. Boeing stated 

that due to manufacturing differences, 


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some operators were unable to modify 

or replace the seat track link assembly 

using Boeing Special Attention Service 

Bulletin 737–53–1260, dated May 7, 

2007. Boeing also requested that we 

allow credit for actions done in 

accordance with Boeing Special 

Attention Service Bulletin 737–53– 

1260, dated May 7, 2007. 

We agree to incorporate Boeing 

Special Attention Service Bulletin 737– 

53–1260, Revision 1, dated May 23, 

2013, in this final rule, which gives an 

option for operators to modify the seat 

track link assembly. References have 

been revised in paragraphs (c)(1), (g)(2), 

(g)(3), and (i) of this final rule 

accordingly. (Paragraph (i) of this final 

rule was referred to as paragraph (h) in 

the NPRM (78 FR 3365, January 16, 

2013).) A new paragraph (h) has been 

added to this final rule to include the 

optional modification. We also have 

added paragraph (j)(2) to this final rule 

to provide credit for certain actions 

performed before the effective date of 

this final rule using Boeing Special 

Attention Service Bulletin 737–53– 

1260, dated May 7, 2007. 

In addition, Boeing Special Attention 

Service Bulletin 737–53–1260, Revision 

1, dated May 23, 2013, includes new 

Group 6 (i.e., certain airplanes 

previously in Group 1 and Group 5, as 

identified in Boeing Special Attention 

Service Bulletin 737–53–1260, dated 

May 7, 2007). For airplanes in Group 6, 

we added paragraph (g)(3) to this final 

rule to provide instructions to contact 

the FAA for inspection, change, and 

repair of the seat track link assembly 

because we have determined that there 

are unique aspects of these airplanes 

that require specific instructions for 

correcting the unsafe condition. Also, 

paragraph (g)(2) of this final rule has 

been revised to clarify the applicable 

groups. New paragraph (g)(4) has been 

added to this final rule to clarify the 

requirements for airplanes in Group 5. 

Subsequent paragraph identifiers have 

been revised accordingly. 

Request for Credit for Certain Actions 

Delta, Alaska Airlines, WestJet, and 

Saudi Aramco requested that we 

provide credit for actions performed 

prior to the effective date of the AD 

using Boeing Service Bulletin 737–53– 

1244, dated April 17, 2003; Revision 1, 

dated May 29, 2003; Revision 2, dated 

March 15, 2007; and Revision 3, dated 

December 4, 2008. The commenters 

stated that Boeing Service Bulletin 737– 

53–1244, Revision 5, dated July 27, 

2011, specifies that no more work is 

necessary on airplanes changed in 

accordance with Boeing Service Bulletin 

737–53–1244, dated April 17, 2003; 

Revision 1, dated May 29, 2003; 

Revision 2, dated March 15, 2007; and 

Revision 3, dated December 4, 2008. 

We agree to provide credit for actions 

performed prior to the effective date of 

the final rule using Boeing Service 

Bulletin 737–53–1244, dated April 17, 

2003; Revision 1, dated May 29, 2003; 

Revision 2, dated March 15, 2007; and 

Revision 3, dated December 4, 2008. We 

have added a new paragraph (j)(1) to 

this final rule accordingly. Subsequent 

paragraph identifiers have been revised 

accordingly. 

Request To Correct Compliance Table 1 

of Boeing Service Bulletin 737–53–1244, 

Revision 5, Dated July 27, 2011 

Alaska Airlines requested that we 

correct Table 1 of paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service 

Bulletin 737–53–1244, Revision 5, dated 

July 27, 2011, which refers to Boeing 

Service Bulletin 737–53–1244, dated 

April 17, 2003; and Revision 4, dated 

April 6, 2011 (which was withdrawn by 

Boeing). 

We partially agree with the request. 

We agree that the ‘‘Optional Actions’’ 

column of Table 1 of paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service 

Bulletin 737–53–1244, Revision 5, dated 

July 27, 2011, refers to Boeing Service 

Bulletin 737–53–1244, dated April 17, 

2003; and Revision 4, dated April 6, 

2011. However, this final rule does not 

require that action. This final rule 

requires, among other actions, 

installation of the new, improved pivot 

link within 60 months after the effective 

date of this AD, which is identified in 

the ‘‘Follow On Actions’’ column of 

Table 1 of paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service 

Bulletin 737–53–1244, Revision 5, dated 

July 27, 2011. No change has been made 

to this final rule in this regard. 

Request for Clarification of Damage 

Tolerance Inspections Statement 

Alaska Airlines requested that we 

clarify the NPRM (78 FR 3365, January 

16, 2013) by adding a statement 

regarding the damage tolerance 

inspections. Alaska Airlines stated that 

Boeing Service Bulletin 737–53–1244, 

Revision 5, dated July 27, 2012, 

includes a damage tolerance inspection 

statement; however, Boeing Special 

Attention Service Bulletin 737–53– 

1260, dated May 7, 2007, does not 

include the statement. The commenter 

requested that we add a statement to the 

NPRM indicating that no damage 

tolerance inspections are required as a 

result of rework using either service 

bulletin. 

We agree that the damage tolerance 

inspection statement was not included 

in Boeing Special Attention Service 

Bulletin 737–53–1260, dated May 7, 

2007; however, the statement is 

included in Boeing Special Attention 

Service Bulletin 737–53–1260, Revision 

1, dated May 23, 2013, which is cited 

in this final rule. No change has been 

made to this final rule in this regard. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting this AD 

with the changes described previously 

and minor editorial changes. We have 

determined that these minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM (78 FR 3365, 

January 16, 2013) for correcting the 

unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (78 FR 3365, 

January 16, 2013). 

We also determined that these 

changes will not increase the economic 

burden on any operator or increase the 

scope of this AD. 

Costs of Compliance 

We estimate that this AD affects 1,281 

airplanes of U.S. registry. 

We estimate the following costs to 

comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per product U.S. 

Airplanes 

Cost on U.S. 

operators 

Replacement or modification Up to 41 work-hours × $85 

per hour = $3,485.

Up to $15,478 ........ Up to $18,963 ........ 1,281 Up to $24,291,603. 

Concurrent installation or 

modification (Groups 1, 2, 

4, and 5 airplanes).

Up to 60 work-hours × $85 

per hour = $5,100.

Up to $18,089 ........ Up to $23,189 ........ 214 Up to $4,962,446. 


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We have received no definitive data 

that would enable us to provide a cost 

estimate for the actions required for 

airplanes in Group 6 identified in 

Boeing Special Attention Service 

Bulletin 737–53–1260, Revision 1, dated 

May 23, 2013. 

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 

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), 

(3) Will not affect intrastate aviation 

in Alaska, and 

(4) 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. 

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 FAA amends § 39.13 by adding 

the following new airworthiness 

directive (AD): 

2013–24–13 The Boeing Company: 

Amendment 39–17687; Docket No. 

FAA–2012–1317; Directorate Identifier 

2011–NM–194–AD. 

(a) Effective Date 

This AD is effective January 7, 2014. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to the airplanes identified 

in paragraphs (c)(1) and (c)(2) of this AD, 

certificated in any category. 

(1) The Boeing Company Model 737–100, 

–200, –200C, –300, –400, and –500 series 

airplanes, as identified in Boeing Special 

Attention Service Bulletin 737–53–1260, 

Revision 1, dated May 23, 2013. 

(2) The Boeing Company Model 737–600, 

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

as identified in Boeing Service Bulletin 737– 

53–1244, Revision 5, dated July 27, 2011. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 53, Fuselage. 

(e) Unsafe Condition 

This AD was prompted by a report that a 

Boeing study found that the seat track 

attachment of body station 520 flexible joint 

is structurally deficient in resisting a 9g 

forward emergency load condition in certain 

seating configurations. We are issuing this 

AD to prevent seat detachment in an 

emergency landing, which could cause injury 

to occupants of the passenger compartment 

and affect emergency egress. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Repair or Replacement of Seat Track 

Link Assembly or Seat Track Link Assembly 

Fastener 

Within 60 months after the effective date 

of this AD, do the actions specified in 

paragraph (g)(1), (g)(2), (g)(3), or (g)(4) of this 

AD, as applicable. 

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

and –900 series airplanes: Install new, 

improved pivot link assemblies, in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 737– 

53–1244, Revision 5, dated July 27, 2011. 

(2) For airplanes in Groups 1, 2, 3, and 4, 

as identified in Boeing Special Attention 

Service Bulletin 737–53–1260, Revision 1, 

dated May 23, 2013: Replace the seat track 

link assembly, in accordance with the 

Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 737–53– 

1260, Revision 1, dated May 23, 2013. 

(3) For airplanes in Group 6, as identified 

in Boeing Special Attention Service Bulletin 

737–53–1260, Revision 1, dated May 23, 

2013: Inspect, change, or repair the seat track 

link assembly, as applicable, using a method 

approved in accordance with the procedures 

specified in paragraph (k) of this AD. 

(4) For airplanes in Group 5, as identified 

in Boeing Special Attention Service Bulletin 

737–53–1260, Revision 1, dated May 23, 

2013: Modify the existing seat track link 

assembly fastener, in accordance with the 

Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 737–53– 

1260, Revision 1, dated May 23, 2013. 

(h) Optional Modification of Seat Track Link 

Assembly 

In lieu of the replacement specified in 

paragraph (g)(2) of this AD, doing the 

optional modification of the seat track link 

assembly, in accordance with the 

Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 737–53– 

1260, Revision 1, dated May 23, 2013, is 

acceptable for compliance with the 

requirements of paragraph (g)(2) of this AD, 

provided the modification is done within the 

compliance time specified in the 

introductory text of paragraph (g) of this AD. 

(i) Concurrent Actions 

For airplanes in Groups 1, 2, 4, and 5, as 

identified in Boeing Special Attention 

Service Bulletin 737–53–1260, Revision 1, 

dated May 23, 2013: Before or concurrently 

with the accomplishment of the actions 

specified in paragraph (g)(2) or (g)(3) of this 

AD, install a new seat track link assembly or 

modify the seat track link assembly, as 

applicable, in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin 737–53–1120, Revision 1, 

dated May 13, 1993. 

(j) Credit for Previous Actions 

(1) This paragraph provides credit for the 

actions required by paragraph (g)(1) of this 

AD, if those actions were performed before 

the effective date of the AD using Boeing 

Service Bulletin 737–53–1244, dated April 

17, 2003; Revision 1, dated May 29, 2003; 

Revision 2, dated March 15, 2007; or 

Revision 3, dated December 4, 2008; which 

are not incorporated by reference in this AD. 

(2) This paragraph provides credit for the 

actions required by paragraphs (g)(2) and 

(g)(4) of this AD, if those actions were 

performed before the effective date of this AD 

using Boeing Special Attention Service 

Bulletin 737–53–1260, dated May 7, 2007, 

which is not incorporated by reference in this 

AD. 

(k) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. In accordance with 14 CFR 39.19, 

send your request to your principal inspector 

or local Flight Standards District Office, as 


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appropriate. If sending information directly 

to the manager of the ACO, send it to the 

attention of the person identified in 

paragraph (l) of this AD. Information may be 

emailed to: 9-ANM-Seattle-ACO-AMOCRequests@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD if it is approved by The 

Boeing Commercial Airplanes Organization 

Designation Authorization (ODA) that 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 14 

CFR 25.571, Amendment 45, and the 

approval must specifically refer to this AD. 

(l) Related Information 

(1) For more information about this AD, 

contact Sarah Piccola, Aerospace Engineer, 

Cabin Safety and Environmental Systems 

Branch, ANM–150S, FAA, Seattle Aircraft 

Certification Office, 1601 Lind Avenue SW., 

Renton, WA 98057–3356; phone: 425–917– 

6483; fax: 425–917–6590; email: 

sarah.piccola@faa.gov. 

(2) Service information that is referenced 

in this AD but is not incorporated by 

reference may be obtained at the addresses 

identified in paragraphs (m)(3) and (m)(4) of 

this AD. 

(m) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Boeing Service Bulletin 737–53–1120, 

Revision 1, dated May 13, 1993. 

(ii) Boeing Service Bulletin 737–53–1244, 

Revision 5, dated July 27, 2011. 

(iii) Boeing Special Attention Service 

Bulletin 737–53–1260, Revision 1, dated May 

23, 2013. 

(3) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, WA 98124–2207; telephone 206– 

544–5000, extension 1; fax 206–766–5680; 

Internet https://www.myboeingfleet.com. 

(4) You may view this service information 

at FAA, Transport Airplane Directorate, 1601 

Lind Avenue SW., Renton, WA. For 

information on the availability of this 

material at the FAA, call 425–227–1221. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Renton, Washington, on 

November 19, 2013. 

Jeffrey E. Duven, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–28752 Filed 12–2–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0420; Directorate 

Identifier 2011–NM–241–AD; Amendment 

39–17685; AD 2013–24–11] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 747–100, 

747–100B, 747–100B SUD, 747–200B, 

747–200C, 747–200F, 747–300, 747– 

400, 747–400D, 747–400F, 747SR, and 

747SP series airplanes. This AD was 

prompted by a report of a disbonded 

doubler and a skin crack in section 41 

of the fuselage, and multiple reports of 

cracked or missing fastener heads. This 

AD requires repetitive inspections for 

cracking of the fuselage skin, discrepant 

fasteners, and for disbonds at the 

doublers; and related investigative and 

corrective actions if necessary. For 

certain airplanes, this AD also requires 

a terminating repair for repair doublers. 

We are issuing this AD to prevent rapid 

decompression and loss of structural 

integrity of the airplane due to such 

disbonding and subsequent cracking of 

the skin panels. 

DATES: This AD is effective January 7, 

2014. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of January 7, 2014. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, WA 98124–2207; 

telephone 206–544–5000, extension 1; 

fax 206–766–5680; Internet https://

www.myboeingfleet.com. You may view 

this referenced service information at 

the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., 

Renton, WA. For information on the 

availability of this material at the FAA, 

call 425–227–1221. 

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 (phone: 800–647–5527) is 

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: 

Nathan Weigand, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office 

(ACO), 1601 Lind Avenue SW., Renton, 

WA 98057–3356; phone: 425–917–6428; 

fax: 425–917–6590; email: 

Nathan.P.Weigand@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to the specified products. The 

NPRM published in the Federal 

Register on May 16, 2013 (78 FR 28767). 

The NPRM proposed to require 

repetitive inspections for cracking of the 

fuselage skin, discrepant fasteners, and 

for disbonds at the doublers; and related 

investigative and corrective actions if 

necessary. For certain airplanes, the 

NPRM also proposed to require a 

terminating repair for repair doublers. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal (78 FR 28767, 

May 16, 2013) and the FAA’s response 

to each comment. 

Request To Add Terminating Action for 

Other AD Actions 

Boeing requested that we include the 

requirements of paragraph (h) of AD 

2006–24–05, Amendment 39–14834 (76 

FR 68434, November 27, 2006), in 

paragraph (k)(3) of the NPRM (78 FR 

28767, May 16, 2013), which specifies 

that accomplishing the required actions 

proposed by the NPRM terminates 

certain requirements of AD 2006–24–05. 

Boeing stated that including the 

requirements of paragraph (h) of AD 

2006–24–05 in paragraph (k) of the 

NPRM would then be consistent with 

paragraph (k)(2) of the NPRM that 


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