Federal Register / Vol. 75, No. 133 / Tuesday, July 13, 2010 / Rules and Regulations 39801 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

Bombardier Service Bulletin 84–29–22, 

Revision A, dated February 24, 2009, under 

5 U.S.C. 552(a) and 1 CFR part 51. 

(2) The Director of the Federal Register 

previously approved the incorporation by 

reference of the service information 

contained in Table 4 of this AD on September 

2, 2008 (73 FR 47818, August 15, 2008). 

TABLE 4—MATERIAL PREVIOUSLY INCORPORATED BY REFERENCE IN AD 2008–17–06 

Bombardier temporary amendment— Issue— Dated— To Bombardier Dash 8 Q400 

Airplane Flight Manual— 

13 ............................................................... 3 June 9, 2008 ............. Model 400 PSM 1–84–1A. 

13 ............................................................... 3 June 9, 2008 ............. Model 401 PSM 1–84–1A. 

13 ............................................................... 3 June 9, 2008 ............. Model 402 PSM 1–84–1A. 

(3) On July 10, 2007 (72 FR 30968, June 5, 

2007), the Director of the Federal Register 

approved the incorporation by reference of 

the temporary amendments identified in 

Table 5 of this AD. 

TABLE 5—MATERIAL PREVIOUSLY INCORPORATED BY REFERENCE IN AD 2007–12–03 

Bombardier temporary amendment— Issue— Dated— To Bombardier Dash 8 Q400 

Airplane Flight Manual— 

13 ............................................................... 1 July 14, 2005 ............. Model 400 PSM 1–84–1A. 

13 ............................................................... 1 July 14, 2005 ............. Model 401 PSM 1–84–1A. 

13 ............................................................... 1 July 14, 2005 ............. Model 402 PSM 1–84–1A. 

(4) For service information identified in 

this AD, contact Bombardier, Inc., 400 CoˆteVertu Road West, Dorval, Que ́bec H4S 1Y9, 

Canada; telephone 514–855–5000; fax 514– 

855–7401; e-mail 

thd.qseries@aero.bombardier.com; Internet 

http://www.bombardier.com. 

(5) You may review copies of the 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. 

(6) You may also review copies of the 

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/ 

code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on June 25, 

2010. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–16434 Filed 7–12–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–29176; Directorate 

Identifier 2007–NE–38–AD; Amendment 39– 

16365; AD 2010–14–20] 

RIN 2120–AA64 

Airworthiness Directives; McCauley 

Propeller Systems Model 4HFR34C653/ 

L106FA Propellers 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for 

McCauley Propeller Systems model 

4HFR34C653/L106FA propellers. This 

AD requires a onetime fluorescent 

penetrant inspection (FPI) and eddy 

current inspection (ECI) of the propeller 

hub for cracks. This AD results from 

reports of 10 hubs found cracked during 

propeller overhaul. We are issuing this 

AD to prevent failure of the propeller 

hub, which could cause blade 

separation, damage to the airplane, and 

loss of control of the airplane. 

DATES: This AD becomes effective 

August 17, 2010. The Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in the regulations as 

of August 17, 2010. 

ADDRESSES: You can get the service 

information identified in this AD from 

McCauley Propeller Systems, P.O. Box 

7704, Wichita, KS 67277–7704; 

telephone (800) 621–7767. 

The Docket Operations office is 

located at Docket Management Facility, 

U.S. Department of Transportation, 1200 

New Jersey Avenue, SE., West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001. 

FOR FURTHER INFORMATION CONTACT: Jeff 

Janusz, Aerospace Engineer, Wichita 

Aircraft Certification Office, FAA, Small 

Airplane Directorate, 1801 Airport 

Road, Wichita, KS 67209; e-mail: 

jeff.janusz@faa.gov; telephone (316) 

946–4148; fax (316) 946–4107. 

SUPPLEMENTARY INFORMATION: The FAA 

proposed to amend 14 CFR part 39 with 

a proposed AD. The proposed AD 

applies to McCauley Propeller Systems 

model 4HFR34C653/L106FA propellers. 

We published the proposed AD in the 

Federal Register on September 28, 2007 

(72 FR 55120). We also published a 

supplemental proposed AD in the 

Federal Register on April 13, 2010 (75 

FR 18774). Those actions proposed to 

require a onetime FPI and ECI of the 

propeller hub for cracks. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office 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 Operations office (telephone 

(800) 647–5527) is provided in the 


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39802 Federal Register / Vol. 75, No. 133 / Tuesday, July 13, 2010 / Rules and Regulations 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We received 

one comment on the original proposed 

AD, which we responded to in the 

supplemental proposed AD. We 

received no comments on the 

supplemental proposed AD, or on the 

determination of the cost to the public. 

Conclusion 

We have carefully reviewed the 

available data and determined that air 

safety and the public interest require 

adopting the AD as proposed. 

Costs of Compliance 

We estimate that this AD will affect 

128 propellers installed on airplanes of 

U.S. registry. We also estimate that it 

will take about 41.5 work-hours per 

propeller to perform the actions, and 

that the average labor rate is $85 per 

work-hour. Based on these figures, we 

estimate the total cost of the AD to U.S. 

operators to be $451,520. 

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 have 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 

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 summary of the costs 

to comply with this AD and placed it in 

the AD Docket. You may get a copy of 

this summary at the address listed 

under ADDRESSES. 

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 Federal Aviation Administration 

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: 

2010–14–20 McCauley Propeller Systems: 

Amendment 39–16365. Docket No. 

FAA–2007–29176; Directorate Identifier 

2007–NE–38–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective August 17, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to McCauley Propeller 

Systems model 4HFR34C653/L106FA 

propellers. 

Unsafe Condition 

(d) This AD results from reports of 10 hubs 

found cracked during propeller overhaul. We 

are issuing this AD to prevent failure of the 

propeller hub, which could cause blade 

separation, damage to the airplane, and loss 

of control of the airplane. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified unless the 

actions have already been done. 

(f) For propeller hubs with 6,000 or more 

operating hours time-since-new (TSN) on the 

effective date of this AD, perform the 

procedures in paragraphs (h) through (k) of 

this AD within 100 operating hours time-inservice after the effective date of this AD. 

(g) For propeller hubs with fewer than 

6,000 operating hours TSN on the effective 

date of this AD, perform the procedures in 

paragraphs (h) through (k) of this AD before 

the propeller hub reaches 6,100 operating 

hours TSN. 

Onetime Propeller Hub Inspection 

(h) Remove and disassemble the propeller, 

and etch the propeller hub, using paragraphs 

1.A. through 2.D. of the Accomplishment 

Instructions of McCauley Propeller Systems 

Alert Service Bulletin No. ASB254, dated 

August 20, 2007. 

(i) Perform a onetime fluorescent penetrant 

inspection (FPI) of the propeller hub, using 

paragraphs 3.A through 3.G. of the 

Accomplishment Instructions of McCauley 

Propeller Systems Alert Service Bulletin No. 

ASB254, dated August 20, 2007. 

(j) For hubs that pass the FPI, perform a 

onetime eddy current inspection of the 

propeller hub, using paragraphs 4.A. through 

4.F. of the Accomplishment Instructions of 

McCauley Propeller Systems Alert Service 

Bulletin No. ASB254, dated August 20, 2007. 

(k) Remove cracked hubs from service and 

any other propeller parts found cracked. 

Previous Credit 

(l) If you performed the onetime inspection 

of the propeller hub using McCauley 

Propeller Systems Service Bulletin No. 

SB238A, or Alert Service Bulletin ASB254, 

both dated August 20, 2007, before the 

effective date of this AD, you have satisfied 

the inspection requirements of this AD. 

Interim Action 

(m) These actions are interim actions and 

we may take further rulemaking actions in 

the future. 

Alternative Methods of Compliance 

(n) The Manager, Wichita Aircraft 

Certification Office, has the authority to 

approve alternative methods of compliance 

for this AD if requested using the procedures 

found in 14 CFR 39.19. 

Special Flight Permits 

(o) Under 14 CFR part 39.23, we are 

limiting the special flight permits for this AD 

as follows: 

(1) The propeller must have no signs of 

external oil leakage from the hub; and 

(2) The propeller has no current reports of 

abnormal operation or vibration. 

Related Information 

(p) Contact Jeff Janusz, Aerospace 

Engineer, Wichita Aircraft Certification 

Office, FAA, Small Airplane Directorate, 

1801 Airport Road, Wichita, KS 67209; email: jeff.janusz@faa.gov; telephone (316) 

946–4148; fax: (316) 946–4107, for more 

information about this AD. 

Material Incorporated by Reference 

(q) You must use McCauley Propeller 

Systems, Service Bulletin No. ASB254, dated 

August 20, 2007, to perform the inspections 

required by this AD. The Director of the 

Federal Register approved the incorporation 

by reference of this service bulletin in 


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Federal Register / Vol. 75, No. 133 / Tuesday, July 13, 2010 / Rules and Regulations 39803 

accordance with 5 U.S.C. 552(a) and 1 CFR 

part 51. Contact McCauley Propeller Systems, 

P.O. Box 7704, Wichita, KS 67277–7704; 

telephone (800) 621–7767, for a copy of this 

service information. You may review copies 

at the FAA, New England Region, 12 New 

England Executive Park, Burlington, MA; or 

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 Burlington, Massachusetts, on 

July 1, 2010. 

Francis A. Favara, 

Manager, Engine and Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–16615 Filed 7–12–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0308; Directorate 

Identifier 2010–NE–17–AD; Amendment 39– 

16366; AD 2010–14–21] 

RIN 2120–AA64 

Airworthiness Directives; Thielert 

Aircraft Engines GmbH Model TAE 

125–01 Reciprocating Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD results 

from mandatory continuing 

airworthiness information (MCAI) 

issued 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: 

Service has shown that the small outlet of 

the blow-by oil separators, part number 02– 

7250–18100R1; 02–7250–18100R2; 02–7250– 

18100R3; 02–7250–18100R4; 02–7250– 

18300R1; 02–7250–18300R2; 02–7250– 

18300R3; 02–7250–18300R4; or 02–7250– 

18300R5, may cause a blow-by gas pressure 

increase inside the crankcase of the engine in 

excess of the oil seal design pressure limits. 

Leaking engine oil may adversely affect the 

gearbox clutch or the engine lubrication 

system. This condition, if not corrected, 

could lead to in-flight cases of engine power 

loss or ultimately, shutdown. 

We are issuing this AD to prevent loss 

of engine power or uncommanded 

engine shutdown during flight due to 

excessive crankcase blow-by gas 

pressure. 

DATES: This AD becomes effective 

August 17, 2010. The Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in this AD as of 

August 17, 2010. 

ADDRESSES: The Docket Operations 

office is located at Docket Management 

Facility, U.S. Department of 

Transportation, 1200 New Jersey 

Avenue SE., West Building Ground 

Floor, Room W12–140, Washington, DC 

20590–0001. 

FOR FURTHER INFORMATION CONTACT: Tara 

Chaidez, Aerospace Engineer, Engine 

Certification Office, FAA, Engine and 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

e-mail: tara.chaidez@faa.gov; telephone 

(781) 238–7773; fax (781) 238–7199. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on April 5, 2010 (75 FR 17084). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states that: 

Service has shown that the small outlet of 

the blow-by separators, part number 02– 

7250–18100R1; 02–7250–18100R2; 02–7250– 

18100R3; 02–7250–18100R4; 02–7250– 

18300R1; 02–7250–18300R2; 02–7250– 

18300R3; 02–7250–18300R4; or 02–7250– 

18300R5, may cause a blow-by gas pressure 

increase inside the crankcase of the engine in 

excess of the oil seal design pressure limits. 

Leaking engine oil may adversely affect the 

gearbox clutch or the engine lubrication 

system. This condition, if not corrected, 

could lead to in-flight cases of engine power 

loss or ultimately, shutdown. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM or 

on the determination of the cost to the 

public. 

Conclusion 

We reviewed the available data and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

Costs of Compliance 

Based on the service information, we 

estimate that this AD will affect about 

250 Thielert Aircraft Engines GmbH 

model TAE 125–01 engines installed on 

airplanes of U.S. registry. We also 

estimate that it will take about 1.5 workhours per engine to comply with this 

AD. The average labor rate is $85 per 

work-hour. Required parts will cost 

about $1,500 per engine. Based on these 

figures, we estimate the cost of the AD 

on U.S. operators to be $406,875. 

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 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); 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 AD and placed it in the AD docket. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office 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 Operations office (phone 

(800) 647–5527) is provided in the 

ADDRESSES section. Comments will be 


jlentini on DSKJ8SOYB1PROD with RULES