Federal Register / Vol. 77, No. 181 / Tuesday, September 18, 2012 / Proposed Rules 57531 

(g) Inspections of Crown Skin Areas 

At the applicable time specified in 

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

Service Bulletin 737–53–1311, dated October 

21, 2011, except as required by paragraph (k) 

of this AD: Do an external detailed inspection 

and an external non-destructive inspection (a 

medium frequency eddy current (MFEC), 

magneto optic imager (MOI), C-scan, or 

ultrasonic phased array (UTPA) inspection) 

for cracking in the fuselage skin along the 

chem-mill steps at certain locations specified 

in, and in accordance with, Boeing Service 

Bulletin 737–53–1311, dated October 21, 

2011. Repeat the inspections thereafter at the 

applicable times specified in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service Bulletin 

737–53–1311, dated October 21, 2011. 

(h) Inspections of Shear Wrinkle Areas 

For Groups 2, 5, and 6 airplanes as 

identified in Boeing Service Bulletin 737–53– 

1311, dated October 21, 2011: At the 

applicable time specified in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service Bulletin 

737–53–1311, dated October 21, 2011, except 

as required by paragraph (k) of this AD, do 

an external detailed inspection and an 

external non-destructive inspection (MFEC, 

MOI, C-scan, or UTPA) for cracking in the 

fuselage skin along the chem-mill steps at 

certain shear wrinkle locations specified in, 

and in accordance with, Boeing Service 

Bulletin 737–53–1311, dated October 21, 

2011. Repeat the inspections required by 

paragraph (h) of this AD thereafter at the 

applicable times specified in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service Bulletin 

737–53–1311, dated October 21, 2011. 

(i) Repairs 

If any cracking is found during any 

inspection required by paragraphs (g) and (h) 

of this AD, before further flight, repair the 

cracking using a method approved in 

accordance with the procedures specified in 

paragraph (m) of this AD. Accomplishing the 

repair approved in accordance with the 

procedures specified in paragraph (m) of this 

AD terminates the repetitive inspection 

requirement for that area under the repair 

only. 

(j) Optional Terminating Modification 

Modification of an inspection area 

specified in paragraph (g) of this AD, 

including doing an external detailed 

inspection and an external non-destructive 

inspection (MFEC, MOI, C-scan, or UTPA) for 

cracking of the area to be modified, and a 

high frequency eddy current inspection of all 

existing holes for cracking as applicable, in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 737– 

53–1311, dated October 21, 2011, terminates 

the repetitive inspections required by 

paragraph (g) of this AD for that area only. 

If any cracking is found during any 

inspection described by this paragraph, 

before further flight, repair the cracking using 

a method approved in accordance with the 

procedures specified in paragraph (m) of this 

AD. 

(k) Service Bulletin Exception 

Boeing Service Bulletin 737–53–1311, 

dated October 21, 2011, specifies compliance 

times ‘‘after the original issue date of this 

service bulletin.’’ However, this AD requires 

compliance within the specified compliance 

times ‘‘after the effective date of this AD.’’ 

(l) Post-Modification Inspections 

The post-modification inspections 

specified in Tables 3 and 4 of paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service Bulletin 

737–53–1311, dated October 21, 2011, are not 

required by this AD. 

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

damage tolerance inspections specified in 

Tables 3 and 4 of paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service Bulletin 

737–53–1311, dated October 21, 2011, may 

be used in support of compliance with 

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

Federal Aviation Regulations (14 CFR 

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

actions specified in Part 5 of the 

Accomplishment Instructions and 

corresponding figures of Boeing Service 

Bulletin 737–53–1311, dated October 21, 

2011, are not required by this AD. 

(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 the 

Related Information section of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@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 Wayne Lockett, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, Seattle 

Aircraft Certification Office, 1601 Lind 

Avenue SW., Renton, Washington 98057– 

3356; phone: (425) 917–6447; fax: (425) 917– 

6590; email: Wayne.Lockett@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 review copies of the 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 

September 4, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–22890 Filed 9–17–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0982; Directorate 

Identifier 2012–CE–035–AD] 

RIN 2120–AA64 

Airworthiness Directives; Stemme 

GmbH & Co. KG Powered Sailplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for all 

Stemme GmbH & Co. KG Models S10, 

S10–V, and S10–VT powered sailplanes. 

This proposed AD results from 

mandatory continuing airworthiness 

information (MCAI) originated by an 

aviation authority of another country to 

identify and correct an unsafe condition 

on an aviation product. The MCAI 

describes the unsafe condition as 

unapproved rubber hoses installed in 

the engine fuel, oil, and cooling 

systems, which could lead to a system 

leak and result in an engine fire. We are 

issuing this proposed AD to require 

actions to address the unsafe condition 

on these products. 

DATES: We must receive comments on 

this proposed AD by November 2, 2012. 

ADDRESSES: You may send comments 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: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC 20590, between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. 

For service information identified in 

this proposed AD, contact STEMME AG, 

mstockstill on DSK4VPTVN1PROD with PROPOSALS

57532 Federal Register / Vol. 77, No. 181 / Tuesday, September 18, 2012 / Proposed Rules 

Flugplatzstrasse F2, Nr. 7 15344 

Strausberg, Germany; telephone: +49 (0) 

3341 3612–0, fax: +49 (0) 3341 3612–30; 

Internet: http://www.stemme.de/daten/ 

e/index.html. You may review copies of 

the referenced service information at the 

FAA, Small Airplane Directorate, 901 

Locust, Kansas City, Missouri 64106. 

For information on the availability of 

this material at the FAA, call (816) 329– 

4148. 

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 proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Office 

(telephone (800) 647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: Jim 

Rutherford, Aerospace Engineer, FAA, 

Small Airplane Directorate, 901 Locust, 

Room 301, Kansas City, Missouri 64106; 

telephone: (816) 329–4165; fax: (816) 

329–4090; email: 

jim.rutherford@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2012–0982; Directorate Identifier 

2012–CE–035–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:// 

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 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued AD No. 2012– 

0154, dated August 17, 2012 (referred to 

after this as ‘‘the MCAI’’), to correct an 

unsafe condition for the specified 

products. The MCAI states: 

An occurrence has been reported of an 

engine fire during ground run of a S10–VT 

powered sailplane. The investigation results 

indicated that an unapproved fuel hose was 

installed in the engine fuel system of that 

aeroplane. Subsequent survey of some Nregistered S 10 aeroplanes revealed more 

cases of installation of unapproved fuel, oil 

and cooling hoses on sailplanes engine 

systems. 

This condition, if not detected and 

corrected, could lead to a system leak with 

subsequent engine fire, possibly resulting in 

damage to the sailplane and/or injury of 

occupants. 

Prompted by these findings, Stemme 

GmbH developed a procedure for 

identification of these hoses, to have them 

removed from service. 

For the reasons described above, this AD 

requires a one-time review of the sailplane’s 

maintenance records to determine whether a 

serviceable engine hose kit for fuel, oil and 

cooling systems has been installed and, 

depending on findings, replacement of the 

affected hoses with serviceable parts. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Stemme F & D has issued Installation 

Instruction A34–10–093–01, dated 

August 13, 2012; and Installation 

Instruction A34–10–093–02, dated 

August 13, 2012. The actions described 

in this service information are intended 

to correct the unsafe condition 

identified in the MCAI. 

FAA’s Determination and Requirements 

of the Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with this State of 

Design Authority, they have notified us 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all 

information and determined the unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Costs of Compliance 

We estimate that this proposed AD 

will affect 63 products of U.S. registry. 

We also estimate that it would take 

about .5 work-hour per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. 

Based on these figures, we estimate 

the cost of the proposed AD on U.S. 

operators to be $2,677.50, or $42.50 per 

product. 

In addition, we estimate that any 

necessary follow-on actions would take 

about 8 work-hours and require parts 

costing $1,957, for a cost of $2,637 per 

product for Models S10 and S10–V. We 

also estimate that any necessary followon actions would take about 16 workhours and require parts costing $1,311, 

for a cost of $2,671 per product for 

Model S10–VT. We have no way of 

determining the number of products 

that may need these actions. 

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. 

mstockstill on DSK4VPTVN1PROD with PROPOSALS

Federal Register / Vol. 77, No. 181 / Tuesday, September 18, 2012 / Proposed Rules 57533 

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 AD: 

Stemme GmbH & Co. KG: Docket No. FAA– 

2012–0982; Directorate Identifier 2012– 

CE–035–AD. 

(a) Comments Due Date 

We must receive comments by November 

2, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Stemme GmbH & Co. 

KG Models S10, S10–V, and S10–VT 

powered sailplanes, all serial numbers, 

certificated in any category. 

(d) Subject 

Air Transport Association of America 

(ATA) Code 71: Powerplant. 

(e) Reason 

This AD was prompted by mandatory 

continuing airworthiness information (MCAI) 

originated by an aviation authority of another 

country to identify and correct an unsafe 

condition on an aviation product. The MCAI 

describes the unsafe condition as 

unapproved rubber hoses installed in the 

engine fuel, oil, and cooling systems. We are 

issuing this proposed AD to prevent a system 

leak, which could lead to an engine fire. 

(f) Actions and Compliance 

Unless already done, do the following 

actions: 

(1) If, on the effective date of this AD, the 

date of manufacture of the sailplane is less 

than five years old, before further flight after 

the effective date of this AD, review the 

sailplane’s maintenance records/logbook for 

evidence as to whether the engine fuel, oil, 

and cooling systems rubber hoses have been 

replaced since new. Based on this review, if: 

(i) There is no logbook evidence, i.e. 

logbook entry, that the engine fuel, oil, and 

cooling systems rubber hoses have been 

replaced since new, before further flight, 

make a logbook entry showing compliance 

with this AD. 

(ii) There is logbook evidence, i.e. logbook 

entry, that the engine fuel, oil, and/or cooling 

systems rubber hoses have been replaced 

since new, before further flight, review the 

sailplane’s maintenance records/logbook for 

current documentation of hose conformity 

through a Declaration of Conformity (DoC) or 

a European Aviation Safety Agency (EASA) 

Form 1. 

(A) If you can find current documentation 

of a DoC or an EASA Form 1, before further 

flight, make a logbook entry showing 

compliance with this AD. 

(B) If you cannot find current 

documentation of a DoC or an EASA Form 

1, before further flight, replace the affected 

hose(s) with FAA-approved serviceable hoses 

following Stemme F & D Installation 

Instruction A34–10–093- 01, dated August 

13, 2012; or Stemme F & D Installation 

Instruction A34–10–093- 02, dated August 

13, 2012, as applicable. 

(2) If, on the effective date of this AD, the 

date of manufacture of the sailplane is five 

years old or older, before further flight after 

the effective date of this AD, review the 

sailplane’s maintenance records/logbook for 

evidence of the date the engine fuel, oil, and 

cooling systems rubber hoses were last 

replaced and for documentation of hose 

conformity through a DoC or a EASA Form 

1. Based on this review, if: 

(i) There is logbook evidence, i.e. logbook 

entry, that the installed engine fuel, oil, and 

cooling systems rubber hoses are less than 

five years old and there is current 

documentation of hose conformity with a 

DoC or an EASA Form 1, before further flight, 

make a logbook entry showing compliance 

with this AD. 

(ii) There is logbook evidence, i.e. logbook 

entry, that the installed engine fuel, oil, and 

cooling systems rubber hoses are less than 

five years old, but there is no current 

documentation of hose conformity with a 

DoC or an EASA Form 1, before further flight, 

replace the affected hoses with FAAapproved serviceable hoses following 

Stemme F & D Installation Instruction A34– 

10–093- 01, dated August 13, 2012; or 

Stemme F & D Installation Instruction A34– 

10–093- 02, dated August 13, 2012, as 

applicable. 

(iii) There is logbook evidence, i.e. logbook 

entry, that the installed engine fuel, oil, and 

cooling systems rubber hoses are over five 

years, before further flight, replace the hoses 

with FAA-approved serviceable hoses 

following Stemme F & D Installation 

Instruction A34–10–093- 01, dated August 

13, 2012; or Stemme F & D Installation 

Instruction A34–10–093- 02, dated August 

13, 2012, as applicable. 

(3) As of the effective date of this AD, only 

install FAA-approved serviceable engine 

fuel, oil, and cooling systems rubber hoses 

following Stemme F & D Installation 

Instruction A34–10–093- 01, dated August 

13, 2012; or Stemme F & D Installation 

Instruction A34–10–093- 02, dated August 

13, 2012, as applicable, and that have a 

current documentation of hose conformity, 

i.e., DoC or EASA Form 1. 

(g) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, Standards Office, 

FAA, has the authority to approve AMOCs 

for this AD, if requested using the procedures 

found in 14 CFR 39.19. Send information to 

ATTN: Jim Rutherford, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 Locust, 

Room 301, Kansas City, Missouri 64106; 

telephone: (816) 329–4165; fax: (816) 329– 

4090; email: jim.rutherford@faa.gov. Before 

using any approved AMOC on any sailplane 

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. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

(3) Reporting Requirements: For any 

reporting requirement in this AD, a federal 

agency may not conduct or sponsor, and a 

person is not required to respond to, nor 

shall a person be subject to a penalty for 

failure to comply with a collection of 

information subject to the requirements of 

the Paperwork Reduction Act unless that 

collection of information displays a current 

valid OMB Control Number. The OMB 

Control Number for this information 

collection is 2120–0056. Public reporting for 

this collection of information is estimated to 

be approximately 5 minutes per response, 

including the time for reviewing instructions, 

completing and reviewing the collection of 

information. All responses to this collection 

of information are mandatory. Comments 

concerning the accuracy of this burden and 

suggestions for reducing the burden should 

be directed to the FAA at: 800 Independence 

Ave. SW., Washington, DC 20591, Attn: 

Information Collection Clearance Officer, 

AES–200. 

(h) Related Information 

Refer to MCAI EASA AD No. 2012–0154, 

dated August 17, 2012; Stemme F & D 

Installation Instruction A34–10–093- 01, 

dated August 13, 2012; and Stemme F & D 

Installation Instruction A34–10–093- 02, 

dated August 13, 2012, for related 

information. For service information related 

to this AD, contact STEMME AG, 

Flugplatzstrasse F2, Nr. 7 15344 Strausberg, 

Germany; telephone: +49 (0) 3341 3612–0, 

fax: +49 (0) 3341 3612–30; Internet: http:// 

www.stemme.de/daten/e/index.html. You 

may review copies of the referenced service 

information at the FAA, Small Airplane 

Directorate, 901 Locust, Kansas City, 

Missouri 64106. For information on the 

availability of this material at the FAA, call 

(816) 329–4148. 

Issued in Kansas City, Missouri, on 

September 11, 2012. 

Earl Lawrence, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. 2012–22941 Filed 9–17–12; 8:45 am] 

BILLING CODE 4910–13–P 

mstockstill on DSK4VPTVN1PROD with PROPOSALS