This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

28504 

Vol. 75, No. 98 

Friday, May 21, 2010 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0522; Directorate 

Identifier 2010–CE–022–AD] 

RIN 2120–AA64 

Airworthiness Directives; Various 

Aircraft Equipped With Rotax Aircraft 

Engines 912 A Series Engines 

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 the 

products listed above. 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: This Airworthiness 

Directive (AD) results from reports of 

cracks in the engine crankcase. Austro 

Control GmbH (ACG) addressed the 

problem by issuing AD No 107R3 which 

was superseded by ACG AD A–2004–01. 

The present AD supersedes the ACG 

AD A–2004–01. On one hand, 

introduction by Rotax of an optimized 

crankcase assembly has permitted to 

reduce applicability of the new AD, 

when based on engines’ serial numbers 

(s/n). On the other hand, applicability is 

extended for some engines that may 

have been fitted with certain crankcase 

s/n, supplied as spare parts. 

In addition, accomplishment 

instructions given through the relevant 

Service Bulletins (SB) have been 

detailed to better locate engine’s areas 

that are to be scrutinised. 

The proposed AD would require 

actions that are intended to address the 

unsafe condition described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by July 6, 2010. 

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. 

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: 

Sarjapur Nagarajan, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 

Locust, Room 301, Kansas City, 

Missouri 64106; telephone: (816) 329– 

4145; fax: (816) 329–4090; e-mail: 

sarjapur.nagarajan@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–2010–0522; Directorate Identifier 

2010–CE–022–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 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA AD No.: 

2007–0025, dated February 1, 2007 

(referred to after this as ‘‘the MCAI’’), to 

correct an unsafe condition for the 

specified products. The MCAI states: 

This Airworthiness Directive (AD) results 

from reports of cracks in the engine 

crankcase. Austro Control GmbH (ACG) 

addressed the problem by issuing AD No 

107R3 which was superseded by ACG AD A– 

2004–01. 

The present AD supersedes the ACG AD 

A–2004–01. On one hand, introduction by 

Rotax of an optimized crankcase assembly 

has permitted to reduce applicability of the 

new AD, when based on engines’ serial 

numbers (s/n). On the other hand, 

applicability is extended for some engines 

that may have been fitted with certain 

crankcase s/n, supplied as spare parts. 

In addition, accomplishment instructions 

given through the relevant Service Bulletins 

(SB) have been detailed to better locate 

engine’s areas that are to be scrutinised. 

The aim of this AD is to ensure that the 

requested engine power is available at any 

time to prevent a sudden loss of power that 

could lead to a hazardous situation in a low 

altitude phase of flight. 

The MCAI requires inspecting certain 

crankcases for cracks and replacing the 

crankcase if cracks are found. 

The MCAI applies to all versions of 

Bombardier-Rotax GmbH 912 A, 912 F, 

and 912 S series engines. Versions of the 

912 F series and 912 S series engines are 

type certificated in the United States. 

However, the Model 912 A series engine 

installed in various aircraft does not 

have an engine type certificate; instead, 

the engine is part of the aircraft type 

design. You may obtain further 

information by examining the MCAI in 

the AD docket. 

Relevant Service Information 

Rotax Aircraft Engines has issued 

Service Bulletin SB–912–029 R3, dated 

July 11, 2006. The actions described in 

this service information are intended to 

correct the unsafe condition identified 

in the MCAI. 


srobinson on DSKHWCL6B1PROD with PROPOSALS
Federal Register / Vol. 75, No. 98 / Friday, May 21, 2010 / Proposed Rules 28505 

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. 

Differences Between This Proposed AD 

and the MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have proposed 

different actions in this AD from those 

in the MCAI in order to follow FAA 

policies. Any such differences are 

highlighted in a NOTE within the 

proposed AD. 

Costs of Compliance 

We estimate that this proposed AD 

will affect 60 products of U.S. registry. 

We also estimate that it would take 

about 3 work-hours 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 $15,300, or $255 per 

product. 

In addition, we estimate that any 

necessary follow-on actions would take 

about 20 work-hours and require parts 

costing $6,500, for a cost of $8,200 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 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); and 

3. Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD and placed it in the 

AD docket. 

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 AD: 

Various Aircraft: Docket No. FAA–2010– 

0522; Directorate Identifier 2010–CE–022– 

AD. 

Comments Due Date 

(a) We must receive comments by July 6, 

2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to all serial numbers 

(S/N) of the following aircraft, equipped with 

a Rotax Aircraft Engines 912 A series engine 

with a crankcase assembly S/N up to and 

including S/N 27811, certificated in any 

category: 

Type certificate holder Aircraft model Engine model 

Aeromot-Industrial Mecanico Metalurgica tda. ....................... AMT–200 ................................................................................ 912 A2 

Diamond Aircraft Industries ..................................................... HK 36 R ‘‘SUPER DIMONA’’ .................................................. 912 A 

Diamond Aircraft Industries GmbH ......................................... HK 36 TS ................................................................................

HK 36 TC ...............................................................................

912 A3 

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 or 912 A3 

Subject 

(d) Air Transport Association of America 

(ATA) Code 72: Engine. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

This Airworthiness Directive (AD) results 

from reports of cracks in the engine 

crankcase. Austro Control GmbH (ACG) 

addressed the problem by issuing AD No. 

107R3 which was superseded by ACG AD A– 

2004–01. 

The present AD supersedes the ACG AD 

A–2004–01. On one hand, introduction by 

Rotax of an optimized crankcase assembly 

has permitted to reduce applicability of the 


srobinson on DSKHWCL6B1PROD with PROPOSALS
28506 Federal Register / Vol. 75, No. 98 / Friday, May 21, 2010 / Proposed Rules 

new AD, when based on engines’ serial 

numbers (s/n). On the other hand, 

applicability is extended for some engines 

that may have been fitted with certain 

crankcase s/n, supplied as spare parts. 

In addition, accomplishment instructions 

given through the relevant Service Bulletins 

(SB) have been detailed to better locate 

engine’s areas that are to be scrutinised. 

The aim of this AD is to ensure that the 

requested engine power is available at any 

time to prevent a sudden loss of power that 

could lead to a hazardous situation in a low 

altitude phase of flight. 

The MCAI requires inspecting certain 

crankcases for cracks and replacing the 

crankcase if cracks are found. 

Actions and Compliance 

(f) Unless already done, do the following 

actions: 

(1) Within the next 50 hours time-inservice (TIS) after the effective date of this 

AD, inspect the engine crankcase for cracks 

following Rotax Aircraft Engines Service 

Bulletin SB–912–029 R3, dated July 11, 2006. 

Repetitively thereafter do the inspection at 

each 100-hour, annual, or progressive 

inspection or within 110 hours TIS since last 

inspection, whichever occurs first. 

(2) If cracks in the engine crankcase are 

found during any inspection required by 

paragraph (f)(1) of this AD, before further 

flight, replace the crankcase following Rotax 

Aircraft Engines Service Bulletin SB–912– 

029 R3, dated July 11, 2006. 

(3) Installing a crankcase that has a S/N 

27812 or subsequent terminates the 

inspection requirements of paragraph (f)(1) of 

this AD. 

FAA AD Differences 

Note: This AD differs from the MCAI and/ 

or service information as follows: No 

differences. 

Other FAA AD Provisions 

(g) 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; e-mail: 

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. 

(3) Reporting Requirements: For any 

reporting requirement in this AD, under the 

provisions of the Paperwork Reduction Act 

(44 U.S.C. 3501 et. seq.), the Office of 

Management and Budget (OMB) has 

approved the information collection 

requirements and has assigned OMB Control 

Number 2120–0056. 

Special Flight Permit 

(h) We are limiting the special flight 

permits for this AD by the following 

conditions if the crankcase is cracked or 

there is evidence of oil leakage from the 

crankcase: 

(1) Perform a leak check as follows: 

(i) Clean the crankcase surface to remove 

any oil. 

(ii) Warm up the engine to a minimum oil 

temperature of 50 degrees C (120 degrees F). 

Information about warming up the engine 

can be found in the applicable line 

maintenance manual. 

(iii) Accelerate the engine to full throttle 

and stabilize at full throttle speed for a time 

period of 5 to 10 seconds. Information about 

performing a full throttle run can be found 

in the applicable line maintenance manual. 

(iv) Shutdown after running the engine at 

idle only long enough to prevent vapor locks 

in the cooling system and fuel system. 

(v) Inspect the crankcase for evidence of oil 

leakage. Oil wetting is permitted, but oil 

leakage of more than one drip in 3 minutes 

after engine shutdown is not allowed. 

(2) Check the crankcase mean pressure to 

confirm that it is 1.46 pounds-per-square 

inch gage (psig) (0.1 bar) or higher when 

checked at takeoff power to ensure proper 

return of oil from the crankcase to the oil 

tank. Information about checking crankcase 

mean pressure is available in the Lubrication 

System section of the applicable engine 

installation manual. 

(3) A ferry flight is not allowed if oil 

leakage exceeds one drip in 3 minutes or if 

crankcase mean pressure is below 1.46 psig. 

Related Information 

(i) Refer to MCAI EASA AD No.: 2007– 

0025, dated February 1, 2007; and Rotax 

Aircraft Engines Service Bulletin SB–912– 

029 R3, dated July 11, 2006, for related 

information. Contact BRP–Powertrain GMBH 

& Co KG, Welser Strasse 32, A–4623 

Gunskirchen, Austria; phone: (+43) (0) 7246 

601–0; fax: (+43) (0) 7246 6370; Internet: 

http://www.rotax.com, for a copy of this 

service information. 

Issued in Kansas City, Missouri, on May 

14, 2010. 

Kim Smith, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. 2010–12298 Filed 5–20–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0523; Directorate 

Identifier 2010–CE–018–AD] 

RIN 2120–AA64 

Airworthiness Directives; Hawker 

Beechcraft Corporation (Type 

Certificate No. A00010WI Previously 

Held by Raytheon Aircraft Company) 

Model 390 Airplanes 

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 certain 

Hawker Beechcraft Corporation Model 

390 airplanes. This proposed AD would 

require inspecting for installation of 

certain serial number (S/N) starter 

generators and replacing the starter 

generator if one with an affected serial 

number is found. This proposed AD 

results from reports that starter 

generators with deficient armature 

insulating materials may have been 

installed on certain airplanes. We are 

proposing this AD to detect and replace 

starter generators with defective 

armature insulating materials. This 

condition could result in the loss of 

operation of one or both starter 

generators with consequent loss of all 

non-battery electrical power. 

DATES: We must receive comments on 

this proposed AD by July 6, 2010. 

ADDRESSES: Use one of the following 

addresses to comment on this proposed 

AD: 

• 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 Hawker 

Beechcraft Corporation, 9709 East 

Central, Wichita, Kansas 67201; 

telephone: (316) 676–5034; fax: (316) 

676–6614; Internet: https:// 


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