Federal Register / Vol. 79, No. 37 / Tuesday, February 25, 2014 / Proposed Rules 10429 

Date: February 19, 2014. 

Dale L. Aultman, 

Secretary, Farm Credit Administration Board. 

[FR Doc. 2014–04057 Filed 2–24–14; 8:45 am] 

BILLING CODE 6705–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–0057; Directorate 

Identifier 2013–NM–210–AD] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 737–100, 

–200, –200C, –300, –400, and –500 

series airplanes. This proposed AD was 

prompted by reports from multiple 

operators that have found fatigue 

cracking in the corners of the forward 

galley service doorway. This proposed 

AD would require repetitive inspections 

for any cracking of the skin and bear 

strap doublers in the corners of the 

forward galley service doorway, and 

corrective action if necessary. This 

proposed AD would also provide 

optional terminating actions for certain 

repetitive inspections. We are proposing 

this AD to detect and correct fatigue 

cracking, which could result in rapid 

loss of cabin pressure. 

DATES: We must receive comments on 

this proposed AD by April 11, 2014. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed 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 by searching for 

and locating Docket No. FAA–2014– 

0057; 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 proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Office 

(phone: 800–647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: 

Alan Pohl, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; phone: (425) 917–6450; 

fax: (425) 917–6590; email: alan.pohl@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposal. Send your comments to 

an address listed under the ADDRESSES

section. Include ‘‘Docket No. FAA– 

2014–0057; Directorate Identifier 2013– 

NM–210–AD’’ at the beginning of your 

comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD because of those 

comments. 

We will post all comments we 

receive, without change, to http://

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

We received reports from multiple 

operators that have found fatigue 

cracking of the skin and bear strap in 

the corners of the forward galley service 

doorway. Some of the reported cracks 

were found outside of areas of directed 

or recommended inspections, or in areas 

modified as specified in previous 

revisions of Boeing Alert Service 

Bulletin 737–53A1116. Some airplanes 

were found to have multiple cracks in 

the corner areas. This condition, if not 

corrected, could result in rapid loss of 

cabin pressure. 

Related Rulemaking 

AD 90–06–02, Amendment 39–6489 

(Docket No. 89–NM–67–AD; 55 FR 

8372, March 7, 1990); AD 98–11–04 R1, 

Amendment 39–10984 (64 FR 987, 

January 7, 1999); AD 2008–08–23, 

Amendment 39–15477 (73 FR 21237, 

April 21, 2008); and AD 2008–09–13, 

Amendment 39–15494 (73 FR 24164, 

May 2, 2008); are supplemental 

structural inspection (SSI) program ADs 

that contain inspection requirements 

that are near or overlap the inspection 

areas that this proposed AD would 

require. The inspections mandated by 

those exploratory SSI ADs are not 

sufficient to address the unsafe 

condition identified in this proposed 

AD. 

Relevant Service Information 

We reviewed Boeing Alert Service 

Bulletin 737–53A1116, Revision 4, 

dated September 30, 2013. For 

information on the procedures and 

compliance times, see this service 

information at http://

www.regulations.gov by searching for 

Docket No. FAA–2014–0057. 

FAA’s Determination 

We are proposing this AD because we 

evaluated all the relevant information 

and determined the unsafe condition 

described previously is likely to exist or 

develop in other products of the same 

type design. 

Proposed AD Requirements 

This proposed AD would require 

repetitive inspections for certain The 

Boeing Company Model 737–100, –200, 

–200C, –300, –400, and –500 series 

airplanes for any cracking of the skin 

and bear strap doublers in the corners 

of the forward galley service doorway, 

and corrective action if necessary. This 

proposed AD would also provide 

optional terminating actions for certain 

repetitive inspections. 

The phrase ‘‘corrective actions’’ is 

used in this proposed AD. ‘‘Corrective 

actions’’ are actions that correct or 

address any condition found. Corrective 

actions in an AD could include, for 

example, repairs. 


tkelley on DSK3SPTVN1PROD with PROPOSALS
10430 Federal Register / Vol. 79, No. 37 / Tuesday, February 25, 2014 / Proposed Rules 

Differences Between the Proposed AD 

and the Service Information 

The service information specifies to 

contact the manufacturer for 

instructions on how to repair certain 

conditions, but this proposed AD would 

require repairing those conditions in 

one of the following ways: 

• In accordance with a method that 

we approve; or 

• Using data that meet the 

certification basis of the airplane, and 

that have been approved by the Boeing 

Commercial Airplanes Organization 

Designation Authorization (ODA) whom 

we have authorized to make those 

findings. 

Table 11 in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Alert Service 

Bulletin 737–53A1116, Revision 4, 

dated September 30, 2013, specifies 

post-repair inspections, which may be 

used in support of compliance with 

section 121.1109(c)(2) or 129.109(b)(2) 

of the Federal Aviation Regulations (14 

CFR 121.1109(c)(2) or 129.109(b)(2)). 

However, this NPRM does not propose 

to require those post-repair inspections. 

This difference has been coordinated 

with Boeing. 

Costs of Compliance 

We estimate that this proposed AD 

affects 419 airplanes of U.S. registry. 

We estimate the following costs to 

comply with this proposed AD: 

ESTIMATED COSTS

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

Inspection 19 work-hours × $85 per hour = $1,615 per inspection 

cycle.

None ........ $1,615 per inspection cycle $676,685 per inspection 

cycle. 

We have received no definitive data 

that would enable us to provide cost 

estimates for any on-condition actions 

specified in this proposed AD. We have 

no way of determining the number of 

aircraft that might need this repair. 

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 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 this proposed 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), 

(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. 

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): 

The Boeing Company: Docket No. FAA– 

2014–0057; Directorate Identifier 2013– 

NM–210–AD. 

(a) Comments Due Date 

We must receive comments by April 11, 

2014. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 737–100, –200, –200C, –300, –400, 

and –500 series airplanes, certificated in any 

category, as identified in Boeing Alert 

Service Bulletin 737–53A1116, Revision 4, 

dated September 30, 2013. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 53, Fuselage. 

(e) Unsafe Condition 

This AD was prompted by reports from 

multiple operators that have found fatigue 

cracking of the skin and bear strap in the 

corners of the forward galley service 

doorway. We are issuing this AD to detect 

and correct fatigue cracking, which could 

result in rapid loss of cabin pressure. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspections and Corrective Actions for 

Groups 1 through 4 Airplanes 

For Groups 1 through 4 airplanes identified 

in Boeing Alert Service Bulletin 737– 

53A1116, Revision 4, dated September 30, 

2013: Within the applicable compliance 

times specified in Tables 1 through 10 of 

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

Alert Service Bulletin 737–53A1116, 

Revision 4, dated September 30, 2013, except 

as provided by paragraph (j)(1) of this AD, do 

the applicable detailed and low frequency 

eddy current inspections for any cracking of 

the skin and bear straps in the corners of the 

forward galley service door and do all 

applicable corrective actions, in accordance 

with the Accomplishment Instructions of 

Boeing Alert Service Bulletin 737–53A1116, 

Revision 4, dated September 30, 2013, except 

as required by paragraph (j)(2) of this AD. Do 

all applicable corrective actions before 

further flight. Repeat the inspections at the 

applicable time specified in Tables 1 through 

10 of paragraph 1.E., ‘‘Compliance,’’ of 

Boeing Alert Service Bulletin 737–53A1116, 

Revision 4, dated September 30, 2013. 

(h) Inspections and Corrective Actions for 

Group 5 Airplanes 

For Group 5 airplanes identified in Boeing 

Alert Service Bulletin 737–53A1116, 

Revision 4, dated September 30, 2013: 

Within 120 days after the effective date of 


tkelley on DSK3SPTVN1PROD with PROPOSALS
Federal Register / Vol. 79, No. 37 / Tuesday, February 25, 2014 / Proposed Rules 10431 

this AD, do inspections of the skin and bear 

straps and all applicable corrective actions 

using a method approved in accordance with 

the procedures specified in paragraph (m) of 

this AD. 

(i) Optional Terminating Actions 

(1) For Groups 1 and 2 airplanes identified 

in Boeing Alert Service Bulletin 737– 

53A1116, Revision 4, dated September 30, 

2013: Accomplishment of a repair before the 

effective date of this AD in the upper aft 

corner of the forward galley service doorway, 

in accordance with any service information 

specified in paragraphs (i)(1)(i) through 

(i)(1)(iv) of this AD, terminates the 

requirement for the repetitive inspection 

required by paragraph (g) of this AD for that 

repaired doorway corner only. 

(i) Boeing Service Bulletin 737–53–1116, 

dated July 21, 1988. 

(ii) Boeing Service Bulletin 737–53–1116, 

Revision 1, dated September 7, 1989. 

(iii) Boeing Service Bulletin 737–53–1116, 

Revision 2, dated September 30, 1993. 

(iv) Boeing Service Bulletin 737–53–1116, 

Revision 3, dated July 27, 1995. 

(2) For Group 2 airplanes identified in 

Boeing Alert Service Bulletin 737–53A1116, 

Revision 4, dated September 30, 2013, on 

which no repair or modification was done 

using any of the service information 

identified in paragraphs (i)(2)(i) through 

(i)(2)(iv) of this AD; and for Group 3 

airplanes identified in Boeing Alert Service 

Bulletin 737–53A1116, Revision 4, dated 

September 30, 2013: Repairing or modifying 

the upper aft corner of the forward galley 

service doorway, in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 737–53A1116, Revision 4, 

dated September 30, 2013, terminates the 

repetitive inspections required by paragraph 

(g) of this AD for that repaired or modified 

doorway corner only. 

(i) Boeing Service Bulletin 737–53–1116, 

dated July 21, 1988. 

(ii) Boeing Service Bulletin 737–53–1116, 

Revision 1, dated September 7, 1989. 

(iii) Boeing Service Bulletin 737–53–1116, 

Revision 2, dated September 30, 1993. 

(iv) Boeing Service Bulletin 737–53–1116, 

Revision 3, dated July 27, 1995. 

(3) For Groups 2 and 3 airplanes identified 

in Boeing Alert Service Bulletin 737– 

53A1116, Revision 4, dated September 30, 

2013: Repairing or modifying the lower 

forward or lower aft corner of the forward 

galley service doorway, in accordance with 

the Accomplishment Instructions of Boeing 

Alert Service Bulletin 737–53A1116, 

Revision 4, dated September 30, 2013, 

terminates the repetitive inspection required 

by paragraph (g) of this AD for that repaired 

or modified doorway corner only. 

(j) Exceptions to the Service Information 

(1) Where Boeing Alert Service Bulletin 

737–53A1116, Revision 4, dated September 

30, 2013, specifies a compliance time ‘‘after 

the Revision 4 date of this service bulletin,’’ 

this AD requires compliance within the 

specified compliance time ‘‘after the effective 

date of this AD.’’ 

(2) Where Boeing Alert Service Bulletin 

737–53A1116, Revision 4, dated September 

30, 2013, specifies to contact Boeing for 

repair instructions: Before further flight, 

repair the cracking using a method approved 

in accordance with the procedures specified 

in paragraph (m) of this AD. 

(k) Credit for Previous Actions 

This paragraph provides credit for the 

inspections of the upper corners of the 

forward galley service doors specified in 

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

performed before the effective date of this AD 

using any of the service information 

identified in paragraphs (k)(1) through (k)(4) 

of this AD (which are not incorporated by 

reference in this AD), provided that any 

preventative modification installed using this 

service information is inspected in 

accordance with paragraph (g) of this AD. 

(1) Boeing Service Bulletin 737–53–1116, 

dated July 21, 1988. 

(2) Boeing Service Bulletin 737–53–1116, 

Revision 1, dated September 7, 1989. 

(3) Boeing Service Bulletin 737–53–1116, 

Revision 2, dated September 30, 1993. 

(4) Boeing Service Bulletin 737–53–1116, 

Revision 3, dated July 27, 1995. 

(l) Post-Repair Inspections 

The post-repair inspections specified in 

Table 11 of paragraph 1.E., ‘‘Compliance,’’ of 

Boeing Alert Service Bulletin 737–53A1116, 

Revision 4, dated September 30, 2013, are not 

required by this AD. 

Note 1 to paragraph (l) of this AD: The 

post-repair inspections specified in Table 11 

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

Alert Service Bulletin 737–53A1116, 

Revision 4, dated September 30, 2013, may 

be used in support of compliance with 

section 121.1109(c)(2) or 129.109(b)(2) of the 

Federal Aviation Regulations (14 CFR 

121.1109(c)(2) or 14 CFR 129.109(b)(2)). 

(m) 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 

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. 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 the 

approval must specifically refer to this AD. 

(n) Related Information 

(1) For more information about this AD, 

contact Alan Pohl, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, Seattle 

Aircraft Certification Office, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

phone: (425) 917–6450; fax: (425) 917–6590; 

email: alan.pohl@faa.gov. 

(2) 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, Washington. 

For information on the availability of this 

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

Issued in Renton, Washington, on February 

14, 2014. 

Jeffrey E. Duven, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2014–04003 Filed 2–24–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–0055; Directorate 

Identifier 2013–NM–167–AD] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

Airbus Model A310–304, –322, –324, 

and –325 airplanes. This proposed AD 

was prompted by reports of insufficient 

clearance between the fuel quantity 

indicator (FQI) probes and the adjacent 

structure and metallic components in 

the wing fuel tanks. This proposed AD 

would require a one-time detailed visual 

inspection for sufficient clearance 

between FQI probes on both the lefthand side and right-hand side of the 

trim horizontal stabilizer and the 

adjacent structure and metallic 

components in the fuel tanks, and 

modification if necessary. We are 

proposing this AD to detect and correct 

insufficient clearance, which could lead 

to electrical arcing in a fuel tank during 

a lightning strike, which could result in 

ignition and consequent fire or 

explosion in the fuel tank. 


tkelley on DSK3SPTVN1PROD with PROPOSALS