Federal Register / Vol. 78, No. 171 / Wednesday, September 4, 2013 / Rules and Regulations 54385 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0738; Directorate 

Identifier 2013–CE–022–AD; Amendment 

39–17568; AD 2013–17–04] 

RIN 2120–AA64 

Airworthiness Directives; Various 

Aircraft Equipped With Rotax Aircraft 

Engines 912 A Series Engine 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for various 

aircraft equipped with Rotax Aircraft 

Engines 912 A Series Engine. This AD 

results from mandatory continuing 

airworthiness information (MCAI) 

issued by the aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as oil leaks in the intake 

channel in the area of the valve guide 

on some cylinder heads could increase 

the oil consumption and result in 

engine stoppage. We are issuing this AD 

to require actions to address the unsafe 

condition on these products. 

DATES: This AD is effective September 

24, 2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of September 24, 2013. 

We must receive comments on this 

AD by October 21, 2013. 

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 AD, contact BRP-Powertrain GmbH 

& Co. KG, Welser Strasse 32, A–4623 

Gunskirchen, Austria; phone: +43 7246 

601 0; fax: +43 7246 601 9130; Internet: 

http://www.rotax-aircraft-engines.com. 

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 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: 

Sarjapur Nagarajan, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 

Locust, Room 301, Kansas City, 

Missouri 64106; telephone: (816) 329– 

4145; fax: (816) 329–4090; email: 

sarjapur.nagarajan@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued AD No. 2013– 

0117–E, dated May 30, 2013 (referred to 

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

unsafe condition for the specified 

products. The MCAI states: 

During a production test run, a noncompliance of the installed cylinder head 

assembly of cylinder no. 2 and 3 (2/3) was 

detected, which may result in a latent defect 

on a limited number of engines. The affected 

cylinder heads may not have been 

manufactured in accordance with the 

specification. 

This condition, if not detected and 

corrected, could lead to an oil leak in the 

intake channel in the area of the valve guide. 

The affected non-conforming cylinder heads 

may have small machined through holes, 

which can increase the oil consumption and 

can lead to oil starvation, possibly resulting 

in engine stoppage or in-flight engine 

shutdown and forced landing, with 

consequent risk of damage to the aeroplane 

and injury to occupants. 

To address and correct this potential 

unsafe condition, EASA issued Emergency 

AD 2013–0055–E to require a one-time 

inspection of the affected cylinder head 

assemblies, known to be installed on certain 

s/n engines and, depending on findings, 

replacement of the cylinder head assembly. 

Since that AD was issued, it was found that 

more engines are likely to have an affected 

cylinder head assembly installed than 

initially determined. In addition, it has been 

found that some affected cylinder head 

assemblies, identified by Part Number (P/N) 

623682 and P/N 623687, have inadvertently 

been supplied as spares, between 31 January 

2013 and 28 May 2013. 

For the reasons described above, this AD 

retains the requirements of EASA AD 2013– 

0055–E, which is superseded, but expands 

the Applicability to all engines, as it cannot 

be determined in which s/n engines the 

affected spare cylinder head assemblies are 

installed. 

This AD also prohibits installation of an 

affected cylinder head assembly on an 

engine, or a replacement engine on an 

aeroplane, unless the affected cylinder head 

assembly of that engine is inspected as 

required by this AD. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Rotax Aircraft Engines BRP has issued 

Alert Service Bulletin ASB–912–062R2, 

Revision 2 and ASB–914–044R2, 

Revision 2 (co-published as one 

document), dated May 29, 2013. 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 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 issuing this 

AD because we evaluated all 

information provided by the State of 

Design Authority and determined the 

unsafe condition exists and is likely to 

exist or develop on other products of the 

same type design. 

FAA’s Determination of the Effective 

Date 

An unsafe condition exists that 

requires the immediate adoption of this 

AD. The FAA has found that the risk to 

the flying public justifies waiving notice 

and comment prior to adoption of this 

rule because an oil leak in the intake 

channel in the area of the valve guide 

on some cylinder heads could increase 

the oil consumption and result in 

engine stoppage. Therefore, we 

determined that notice and opportunity 

for public comment before issuing this 

AD are impracticable and that good 

cause exists for making this amendment 

effective in fewer than 30 days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 


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54386 Federal Register / Vol. 78, No. 171 / Wednesday, September 4, 2013 / Rules and Regulations 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2013–0738; 

Directorate Identifier 2013–CE–022– 

AD’’ at the beginning of your comments. 

We specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

this AD. We will consider all comments 

received by the closing date and may 

amend this 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 AD. 

Costs of Compliance 

We estimate that this AD will affect 

50 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 AD. The 

average labor rate is $85 per work-hour. 

Based on these figures, we estimate 

the cost of the AD on U.S. operators to 

be $2,125, or $42.50 per product. 

In addition, we estimate that any 

necessary follow-on actions would take 

about 1.5 work-hours and require parts 

costing $2,500, for a cost of $2,627.50 

per product. 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 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 

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. 

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 AD: 

2013–17–04 Various Aircraft: Amendment 

39–17568; Docket No. FAA–2013–0738; 

Directorate Identifier 2013–CE–022–AD. 

(a) Effective Date 

This airworthiness directive (AD) becomes 

effective September 24, 2013. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all serial numbers of the 

airplanes listed in table 1 of paragraph (c) of 

this AD, that are: 

(1) equipped with a Rotax Aircraft Engines 

912 A series engine with a part number (P/ 

N) 623682 cylinder head assembly (2/3) 

installed; and 

(2) certificated in any category. 

TABLE 1 OF PARAGRAPH (C)—AFFECTED AIRPLANES

Type certificate holder Aircraft model Engine 

model 

Aeromot-Indu ́stria Mecaˆnico-Metalu ́rgica Ltda .................................................................... AMT–200 ...................................................... 912 A2 

Diamond Aircraft Industries ................................................................................................. HK 36 R ‘‘Super Dimona’’ ............................ 912 A 

Diamond Aircraft Industries GmbH ...................................................................................... HK 36 TS and HK 36 TC ............................. 912 A3 

Diamond Aircraft Industries Inc ........................................................................................... DA20–A1 ...................................................... 912 A3 

HOAC-Austria ...................................................................................................................... DV 20 Katana .............................................. 912 A3 

Iniziative Industriali Italiane S.p.A ....................................................................................... Sky Arrow 650 TC ....................................... 912 A2 

SCHEIBE-Flugzeugbau GmbH ........................................................................................... SF 25C ......................................................... 912 A2 

(d) Subject 

Air Transport Association of America 

(ATA) Code 72: Engine—Reciprocating. 

(e) Reason 

This AD results from mandatory 

continuing airworthiness information (MCAI) 

issued by the aviation authority of another 

country to identify and correct an unsafe 

condition on an aviation product. The MCAI 

describes the unsafe condition as oil leaks in 

the intake channel in the area of the valve 

guide on some cylinder heads, which could 

increase the oil consumption and result in 

engine stoppage. We are issuing this AD to 

detect and correct excessive oil consumption, 

which could result in engine stoppage. 

(f) Actions and Compliance 

Unless already done, do the following 

actions. 

(1) Within the next 5 hours time-in-service 

(TIS) after September 24, 2013 (the effective 

date of this AD) or within the next 20 days 

after September 24, 2013 (the effective date 

of this AD), whichever occurs first, inspect 

the cylinder head assembly of cylinder 2 and 

3 (2/3) for excessive oil consumption 

following Section 3 of Rotax Aircraft Engines 

BRP Alert Service Bulletin ASB–912–062R2 

and ASB–914–044R2 (co-published as one 

document), Revision 2, dated May 29, 2013. 


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Federal Register / Vol. 78, No. 171 / Wednesday, September 4, 2013 / Rules and Regulations 54387 

(2) During the inspection required in 

paragraph (f)(1) of this AD, if excessive 

deposits (oil or carbon) are found on the 

spark plugs, before further flight, replace the 

affected cylinder head assembly with a 

serviceable one. Do the replacement 

following Section 3 of Rotax Aircraft Engines 

BRP Alert Service Bulletin ASB–912–062R2 

and ASB–914–044R2 (co-published as one 

document), Revision 2, dated May 29, 2013. 

(3) As of September 24, 2013 (the effective 

date of this AD), only install an engine 

affected by this AD provided it has been 

inspected as specified in paragraph (f)(1) of 

this AD and corrected as specified in 

paragraph (f)(2) of this AD. 

(4) As September 24, 2013 (the effective 

date of this AD), any spare cylinder head 

assembly P/N 623682 installed must be 

inspected within 5 hour TIS after installation 

following Section 3 of Rotax Aircraft Engines 

BRP Alert Service Bulletin ASB–912–062R2 

and ASB–914–044R2 (co-published as one 

document), Revision 2, dated May 29, 2013, 

and corrected as necessary. 

(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: Sarjapur Nagarajan, Aerospace 

Engineer, FAA, Small Airplane Directorate, 

901 Locust, Room 301, Kansas City, Missouri 

64106; telephone: (816) 329–4145; fax: (816) 

329–4090; email: sarjapur.nagarajan@

faa.gov. 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. 

(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. 

(h) Related Information 

Refer to MCAI European Aviation Safety 

Agency (EASA) AD No. 2013–0117–E, dated 

May 30, 2013, for related information, which 

can be found in the AD docket on the 

Internet at http://www.regulations.gov. 

(i) 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) Rotax Aircraft Engines BRP Alert 

Service Bulletin ASB–912–062R2, Revision 

2, dated May 29, 2013. 

(ii) Rotax Aircraft Engines BRP Alert 

Service Bulletin ASB–914–044R2, Revision 

2, dated May 29, 2013. 

Note 1 to paragraph (i)(2): Rotax Aircraft 

Engines BRP Alert Service Bulletins ASB– 

912–062R2, Revision 2, dated May 29, 2013; 

and ASB–914–044R2, Revision 2, dated May 

29, 2013, are co-published as one document. 

(3) For Rotax Aircraft Engines service 

information identified in this AD, contact 

BRP-Powertrain GmbH & Co. KG, Welser 

Strasse 32, A–4623 Gunskirchen, Austria; 

phone: +43 7246 601 0; fax: +43 7246 601 

9130; Internet: http://www.rotax-aircraftengines.com. 

(4) 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. 

(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 Kansas City, Missouri on August 

14, 2013. 

John Colomy, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–21329 Filed 9–3–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0364; Directorate 

Identifier 2011–NM–114–AD; Amendment 

39–17562; AD 2013–16–24] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are superseding 

airworthiness directive (AD) 90–23–14 

for certain The Boeing Company Model 

747 series airplanes. AD 90–23–14 

required inspections of the fuselage skin 

lap splice between body station (BS) 340 

and BS 400 at stringers (S)–6L and S– 

6R, and repair if necessary. This new 

AD adds new repetitive inspections for 

cracking in the S–6 skin lap splice, 

which terminates the inspections 

required by AD 90–23–14; eventual 

modification of the lap splice, which 

terminates the repetitive inspections; 

post-modification inspections; and 

corrective actions if necessary. This AD 

also adds airplanes to the applicability. 

This AD was prompted by a report of 

cracks up to 18.5 inches that were found 

at S–6L and S–6R on several airplanes, 

and subsequent analysis results that 

indicated that the protruding head 

fastener modification and related postmodification inspections required by 

AD 90–23–14 are not adequate to 

prevent cracking at the upper row of 

fasteners in the S–6 lap joint before the 

cracks reach a critical length. We are 

issuing this AD to detect and correct 

cracking at the upper row of fasteners in 

the S–6 lap joint, which could result in 

a sudden loss of cabin pressurization 

and the inability of the fuselage to 

withstand failsafe loads. 

DATES: This AD is effective October 9, 

2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of October 9, 2013. 

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 

review copies of the 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: Bill 

Ashforth, Aerospace Engineer, Airframe 

Branch, ANM–120S, FAA, Seattle 

Aircraft Certification Office, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

phone: 425–917–6432; fax: 425–917– 

6590; email: bill.ashforth@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 90–23–14, 

Amendment 39–6801 (Docket No. 90– 

NM–110–AD; 55 FR 46652, November 6, 


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