44370 Federal Register / Vol. 72, No. 152 / Wednesday, August 8, 2007 / Rules and Regulations 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–28863; Directorate 

Identifier 2007–NE–33–AD; Amendment 39–

15149; AD 2007–16–10] 

RIN 2120–AA64 

Airworthiness Directives; Teledyne 

Continental Motors Reciprocating 

(TCM) Engine Models IO–550–N, TSIO–

520–BE, TSIO–550–A, TSIO–550–B, 

TSIO–550–C, TSIO–550–E, and TSIO–

550–G 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for TCM 

IO–550–N, TSIO–520–BE, TSIO–550–A, 

TSIO–550–B, TSIO–550–C, TSIO–550–

E, and TSIO–550–G reciprocating 

engines. This AD requires removing 

before further flight, certain Kelly 

Aerospace Power Systems 

turbochargers, part number (P/N) 

466304–0003, listed by serial number in 

this AD. This AD results from four 

incidents of the turbine rotor separating 

from the shaft of the turbocharger. We 

are issuing this AD to prevent the 

turbine rotor from separating from the 

shaft of the turbocharger due to a 

machining defect in the turbocharger 

compressor. This condition could result 

in full engine power loss, loss of engine 

lubricant, or smoke in the airplane 

cabin. 

DATES: This AD becomes effective 

August 23, 2007. The Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in the regulations as 

of August 23, 2007. 

We must receive any comments on 

this AD by October 9, 2007. 

ADDRESSES: Use one of the following 

addresses to comment on this AD: 

• DOT Docket Web site: Go to http:// 

dms.dot.gov and follow the instructions 

for sending your comments 

electronically. 

• Government-wide rulemaking Web 

site: Go to http://www.regulations.gov 

and follow the instructions for sending 

your comments electronically. 

• 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. 

• Fax: (202) 493–2251. 

Contact Kelly Aerospace Power 

Systems, 2900 Selma Highway, 

Montgomery, AL 36108; telephone (334) 

386–5400; fax (334) 386–5450; http:// 

www.kellyaerospace.com for the service 

information identified in this AD. 

FOR FURTHER INFORMATION CONTACT: 

Kevin Brane, Aerospace Engineer, 

Atlanta Aircraft Certification Office, 

FAA, Small Airplane Directorate, One 

Crown Center, 1895 Phoenix Blvd., 

Suite 450, Atlanta, GA 30349; e-mail: 

kevin.brane@faa.gov; telephone (770) 

703–6063; fax (770) 703–6097. 

SUPPLEMENTARY INFORMATION: On July 

16, 2007, Kelly Aerospace Power 

Systems informed us that there were 

potential nonconforming turbochargers, 

P/N 466304–0003 that might have a 

machining defect in the compressors of 

the turbochargers. A machining defect 

in the turbocharger compressor leads to 

a condition where the center bore of the 

compressor is not perpendicular to the 

backface of the compressor. The 

machining defect leads to abnormal 

turbocharger rotor vibration which 

results in abnormal wear characteristics. 

The wear could result in the 

turbocharger rotor separating from the 

shaft. This condition, if not corrected, 

could result in full engine power loss, 

loss of engine lubricant, or smoke in the 

airplane cabin. 

Relevant Service Information 

We have reviewed and approved the 

technical contents of Kelly Aerospace 

Power Systems Service Bulletins (SBs) 

No. 026, Revision B, dated July 27, 

2007, and No. 027, dated July 25, 2007. 

Those SBs list affected turbochargers by 

SN, and describe procedures for visually 

inspecting the turbocharger. 

FAA’s Determination and Requirements 

of this AD 

The unsafe condition described 

previously is likely to exist or develop 

on other engines of the same type 

design. For that reason, we are issuing 

this AD to prevent the turbine rotor 

from separating from the shaft of the 

turbocharger due to a machining defect 

in the turbocharger compressor. This 

condition could result in full engine 

power loss, loss of engine lubricant, or 

smoke in the airplane cabin. This AD 

requires replacing certain turbochargers 

before further flight. You must use the 

service information described 

previously to perform the actions 

required by this AD. 

FAA’s Determination of the Effective 

Date 

Since an unsafe condition exists that 

requires the immediate adoption of this 

AD, we have found that notice and 

opportunity for public comment before 

issuing this AD are impracticable, and 

that good cause exists for making this 

amendment effective in less than 30 

days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety and 

was not preceded by notice and an 

opportunity for public comment; 

however, we invite you to send us any 

written relevant data, views, or 

arguments regarding this AD. Send your 

comments to an address listed under 

ADDRESSES. Include ‘‘AD Docket No. 

FAA–2007–28863; Directorate Identifier 

2007–NE–33–AD’’ in the subject line of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of the rule that might suggest a 

need to modify it. 

We will post all comments we 

receive, without change, to http:// 

dms.dot.gov, including any personal 

information you provide. We will also 

post a report summarizing each 

substantive verbal contact with FAA 

personnel concerning this AD. Using the 

search function of the DMS Web site, 

anyone can find and read the comments 

in any of our dockets, including the 

name of the individual who sent the 

comment (or signed the comment on 

behalf of an association, business, labor 

union, etc). You may review the DOT’s 

complete Privacy Act Statement in the 

Federal Register published on April 11, 

2000 (65 FR 19477–78) or you may visit 

http://dms.dot.gov. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://dms.dot.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 ADDRESSES section. 

Comments will be available in the AD 

docket shortly after receipt. 

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 


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Federal Register / Vol. 72, No. 152 / Wednesday, August 8, 2007 / Rules and Regulations 44371 

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 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 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 

■ Under the authority delegated to me 

by the Administrator, the Federal 

Aviation Administration amends part 39 

of the Federal Aviation Regulations (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: 

2007–16–10 Teledyne Continental Motors: 

Amendment 39–15149. Docket No. 

FAA–2007–28863; Directorate Identifier 

2007–NE–33–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective August 23, 2007. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to: 

(1) Teledyne Continental Motors (TCM) 

models TSIO–520–BE, TSIO–550–A, TSIO–

550–B, TSIO–550–C, TSIO–550–E, and 

TSIO–550–G reciprocating engines with a 

Kelly Aerospace Power Systems 

turbocharger, TCM part number (P/N) 

646677, with certain serial numbers (SNs), 

installed on or after March 20, 2007. These 

engines are installed on, but not limited to, 

Adam Aircraft A500, Columbia Aircraft 

Manufacturing LC41–550FG, Mooney 

Airplane Company M20TN (Acclaim), and 

Piper Aircraft Incorporated PA–46–310P 

(Malibu) airplanes. 

(2) TCM IO–550–N reciprocating engines 

modified to Engine Technologies 

Incorporated supplemental type certificate 

(STC) SE10589SC to install turbocharger, 

P/N 466304–0003, with certain SNs, installed 

on or after March 20, 2007. These engines are 

installed on, but not limited to, Cirrus Design 

Corporation Aircraft Model SR22 modified to 

Engine Technologies Incorporated STC 

SA10588SC. 

Unsafe Condition 

(d) This AD results from four incidents of 

the turbine rotor separating from the shaft of 

the turbocharger. We are issuing this AD to 

prevent the turbine rotor from separating 

from the shaft of the turbocharger due to a 

machining defect in the turbocharger 

compressor. This condition could result in 

full engine power loss, loss of engine 

lubricant, or smoke in the airplane cabin. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed before 

further flight unless the actions have already 

been done. 

(f) If your engine has a turbocharger that 

was installed before March 20, 2007, no 

further action is required. 

Engines Modified to Engine Technologies 

Incorporated STC SE10589SC 

(g) Before further flight, for engines 

modified to Engine Technologies 

Incorporated STC SE10589SC on or after 

March 20, 2007, with a turbocharger that has 

a SN listed in Kelly Aerospace Service 

Bulletin (SB) No. 026, Revision B, dated July 

27, 2007, replace the turbocharger. 

TCM Engines with Turbocharger TCM P/N 

646677 

(h) Before further flight, for engines with a 

Kelly Aerospace Power Systems 

turbocharger, TCM P/N 646677 installed on 

or after March 20, 2007, with a turbocharger 

SN listed in Kelly Aerospace SB No. 027, 

dated July 25, 2007, replace the turbocharger. 

Alternative Methods of Compliance 

(i) The Manager, Atlanta 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 

(j) We are limiting the special flight 

permits for this AD by allowing a special 

flight permit only after visually inspecting 

the turbocharger using the procedures 

specified in the Visual Inspection sections of 

Kelly Aerospace Power Systems SB No. 026, 

Revision B, dated July 27, 2007, and SB No. 

027, dated July 25, 2007. 

Related Information 

(k) Teledyne Continental Aircraft Engine 

Mandatory Service Bulletin (MSB) MSB07–4, 

dated July 30, 2007, contains additional 

information on replacing turbochargers on 

TCM engines and Cirrus Service Advisory SA 

07–14 R1, dated July 24, 2007, contains 

additional information on replacing 

turbochargers on Cirrus Design Corporation 

Aircraft Model SR22 modified to Engine 

Technologies Incorporated STC SA10588SC. 

(l) Contact Kevin Brane, Aerospace 

Engineer, Atlanta Aircraft Certification 

Office, FAA, Small Airplane Directorate, One 

Crown Center, 1895 Phoenix Blvd., Suite 

450, Atlanta, GA 30349; e-mail: 

kevin.brane@faa.gov; telephone (770) 703–

6063; fax (770) 703–6097, for more 

information about this AD. 

Material Incorporated by Reference 

(m) You must use Kelly Aerospace Power 

Systems Service Bulletins No. 026, Revision 

B, dated July 27, 2007, and No. 027, dated 

July 25, 2007, to determine if you have an 

affected turbocharger installed. The Director 

of the Federal Register approved the 

incorporation by reference of this service 

bulletin in accordance with 5 U.S.C. 552(a) 

and 1 CFR part 51. Contact Kelly Aerospace 

Power Systems, 2900 Selma Highway, 

Montgomery, AL 36108; telephone (334) 

386–5400; fax (334) 386–5450; 

www.kellyaerospace.com, 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 

August 1, 2007. 

Peter A. White, 

Acting Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 07–3840 Filed 8–6–07; 11:44 am] 

BILLING CODE 4910–13–P 


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