This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents. Prices of

new books are listed in the first FEDERAL

REGISTER issue of each week.

Rules and Regulations Federal Register

68997 

Vol. 71, No. 229 

Wednesday, November 29, 2006 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2006–24956; Directorate 

Identifier 2006–CE–32–AD; Amendment 39– 

14835; AD 2006–24–06] 

RIN 2120–AA64 

Airworthiness Directives; Stemme 

GmbH & Co. AG Model STEMME S10– 

VT Sailplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (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 ripped pressure lines 

between Airbox-Carburetor-Differential 

fuel pressure sensor. We are issuing this 

AD to require actions that are intended 

to address the unsafe condition 

described in the MCAI. 

DATES: This AD becomes effective 

January 3, 2007. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of January 3, 2007. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

dms.dot.gov or in person at the Docket 

Management Facility, U.S. Department 

of Transportation, 400 Seventh Street, 

SW., Nassif Building, Room PL–401, 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: 

Gregory A. Davison, Aerospace 

Engineer, ACE–112, Small Airplane 

Directorate, 901 Locust, Room 301, 

Kansas City, Missouri 64106; telephone: 

(816) 329–4130; fax: (816) 329–4090. 

SUPPLEMENTARY INFORMATION: 

Streamlined Issuance of AD 

The FAA is implementing a new 

process for streamlining the issuance of 

ADs related to MCAI. The streamlined 

process will allow us to adopt MCAI 

safety requirements in a more efficient 

manner and will reduce safety risks to 

the public. This process continues to 

follow all FAA AD issuance processes to 

meet legal, economic, Administrative 

Procedure Act, and Federal Register 

requirements. We also continue to meet 

our technical decision-making 

responsibilities to identify and correct 

unsafe conditions on U.S.-certificated 

products. 

This AD references the MCAI and 

related service information that we 

considered in forming the engineering 

basis to correct the unsafe condition. 

The AD contains text copied from the 

MCAI and for this reason might not 

follow our plain language principles. 

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 August 9, 2006 (71 FR 

45471). That NPRM proposed to require 

that you inspect and replace the 

pressure lines. The MCAI states that 

ripped pressure lines between AirboxCarburetor-Differential fuel pressure 

sensor were found during a requested 

maintenance event after engine trouble 

in the range between maximum 

continuous power and take off power. 

The cracks can be a result of noncomplete temperature resistance. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

have considered the comments received. 

Jack Buster with the Modification and 

Replacement Parts Association provides 

comments on the MCAI AD process 

pertaining to how the FAA addresses 

publishing manufacturer service 

information as part of a proposed AD 

action. The commenter states that the 

proposed rule attempt to require 

compliance with a public law by 

reference to a private writing (as 

referenced in paragraph (e) of the 

proposed AD). The commenter would 

like the FAA to incorporate by reference 

(IBR) the Stemme service bulletin. 

We agree with Mr. Buster. However, 

we do not IBR any document in a 

proposed AD action; instead we IBR the 

document in the final rule. Since we are 

issuing the proposal as a final rule AD 

action, Stemme F&D Design Org. Service 

Bulletin A31–10–073, Am. Index 01.a, 

dated June 22, 2005, is incorporated by 

reference. 

Mr. Buster requests IBR documents be 

made available to the public by 

publication in the Federal Register or in 

the Docket Management System (DMS). 

We are currently reviewing issues 

surrounding the posting of service 

bulletins in the Department of 

Transportation’s DMS as part of the AD 

docket. Once we have thoroughly 

examined all aspects of this issue and 

have made a final determination, we 

will consider whether our current 

practice needs to be revised. 

Conclusion 

We reviewed the available data, 

including the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

Differences Between this 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 a U.S. 

court of law. 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 required different 

actions in this AD from those in the 

MCAI in order to follow FAA policies. 

Any such differences are described in a 

separate paragraph of the AD. These 

requirements, if any, take precedence 

over the actions copied from the MCAI. 

Costs of Compliance 

We estimate that this AD will affect 

43 products of U.S. registry. We also 

estimate that it will take about 4 workhours per product to comply with this 

AD. The average labor rate is $80 per 

work-hour. Required parts will cost 

about $10 per product. Where the 

service information lists required parts 


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68998 Federal Register / Vol. 71, No. 229 / Wednesday, November 29, 2006 / Rules and Regulations 

costs that are covered under warranty, 

we have assumed that there will be no 

charge for these parts. As we do not 

control warranty coverage for affected 

parties, some parties may incur costs 

higher than estimated here. Based on 

these figures, we estimate the cost of 

this AD to the U.S. operators to be 

$14,190 or $330 per product. 

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 

in 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 

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://dms.dot.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 the 

NPRM, the regulatory evaluation, any 

comments received, and other 

information. The street address for the 

Docket Office (telephone (800) 647–

5227) is in the ADDRESSES section. 

Comments will be available in the AD 

docket shortly after receipt. 

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 follow: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new AD: 

2006–24–06 STEMME GMBH & CO. AG: 

Amendment 39–14835; Docket No. 

FAA–2006–24956; Directorate Identifier 

2006–CD–32–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective January 3, 2007. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to STEMME Model 

S10–VT sailplanes; certificated in any U.S. 

category: 

(1) Serial numbers (S/Ns) 11–89 through 

11–096; and 

(2) All S/Ns where pressure lines were 

replaced between July 27, 2004, and June 22, 

2005, inclusive, and the parts were provided 

by Stemme Gmbh & Co. AG (Stemme). 

Reason 

(d) The mandatory continuing 

airworthiness information (MCAI) states that 

ripped pressure lines betweeen AirboxCarburator-Differential fuel pressure sensor 

were found during a requested maintenance 

event after engine trouble in the range 

between maximum continuous power and 

take off power. The cracks can be a result of 

non complete temperature resistance. This 

type of pressure line was installed since July 

27, 2004. It was used for serial production 

and spare parts. 

Actions and Compliance 

(e) Unless already done, do the following 

actions. 

(1) Within 30 days after the effective date 

of this AD, inspect all 0.15 – 0.27 inch (4 x 

7mm) pressure lines for porousness or cracks 

in particular areas of T-splits parts, clamps, 

or connections. The free areas between the 

white plastic covers must also be checked. If 

cracks or porosity are found, before further 

flight, replace all pressure lines with ROTAX 

part number (P/N) 860 660 or Stemme P/N 

HZ–KLS041 (or FAA-approved equivalent P/ 

Ns) pressure lines following STEMME F&D 

Design Org. Service Bulletin A31–10–73, Am. 

Index 01.a, dated June 22, 2005. 

Within 60 days after the effective date of 

this AD, unless already done, replace all 

installed 0.15 x 0.27 inch (4 x 7 mm) pressure 

lines with ROTAX P/N 860 660 or Stemme 

P/N HZ–KLS041 (or FAA-approved 

equivalent P/Ns) pressure lines following 

STEMME F&D Design Org. Service Bulletin 

A31–10–073, Am. Index 01.a, dated June 22, 

2005. 

FAA AD Differences 

Note: This AD differs from the MCAI and/ 

or service information as follows: No 

differences. 

Other FAA AD Provisions 

(f) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, Standards Staff, 

FAA, ATTN: Gregory A. Davison, Aerospace 

Safety Engineer, FAA, Small Airplane 

Directorate, 901 Locuse, Room 301, Kansas 

City, Missouri 64106; telephone: (816) 329–

4130; fax: (816) 329–4090, has the authority 

to approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

(2) Return to Airworthiness: When 

complying with this AD, do the FAAapproved corrective actions before returning 

the product to an airworthy condition. 

(3) Reporting Requirements: For any 

reporting requirement in this AD, under the 

provisions of the Paperwork Reduction Act, 

the Office of Management and Budget (OMB) 

has approved the information collection 

requirements and has assigned OMB Control 

Number 2120–0056. 

Related Information 

(h) This AD is related to MCAI LuftfahrtBundesamt AD D–2005–228, dated June 24, 

2005, which references STEMME F & D 

Design Org. Service Bulletin A31–10–073, 

Am.-Index 01.a, dated June 22, 2005. 

Material Incorporated by Reference 

(i) You must use STEMME F&D Design 

Org. Service Bulletin A31–10–073, Am.- 

Index 01.a, dated June 22, 2005, to do the 

actions required by this AD, unless the AD 

specifies otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

this AD, contact Stemme GmbH & Co. AG, 

Flugplatzstrabe F 2, Nr. 7, D–15344 

Strausberg, Germany; telephone + 49 33 41 

36 12 0; facsimile: + 49 33 41 36 12 30. 

(3) You may review copies at the FAA, 

Central Region, Office of the Regional 

Counsel, 901 Locust, Room 506, Kansas City, 

Missouri 64106; 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/ibr-locations.html. 


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Federal Register / Vol. 71, No. 229 / Wednesday, November 29, 2006 / Rules and Regulations 68999 

Issued in Kansas City, Missouri, on 

November 20, 2006. 

David R. Showers, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 06–9428 Filed 11–28–06; 8:45am] 

BILLING CODE 4910–13–M 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2004–20007; Directorate 

Identifier 2004–CE–50–AD; Amendment 39–

14798; AD 2006–23–09] 

RIN 2120–AA64 

Airworthiness Directives; Air Tractor, 

Inc. Model AT–602 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; correction. 

SUMMARY: This document makes a 

correction to Airworthiness Directive 

(AD) 2006–23–09, which published in 

the Federal Register on November 9, 

2006 (71 FR 65719), and applies to all 

Air Tractor, Inc. Model AT–602 

airplanes. AD 2006–23–09 requires you 

to repetitively inspect (using the eddy 

current method) the wing center splice 

joint two outboard fastener holes on 

both of the wing main spar lower caps 

for fatigue cracking; repair or replace 

any wing main spar lower cap where 

fatigue cracking is found; and report any 

fatigue cracking found. This AD results 

from fatigue cracking at the wing center 

splice joint outboard fastener hole in 

one of the wing main spar lower caps. 

The AD number in the AD is incorrectly 

referenced as ‘‘2006–23–01’’ instead of 

‘‘2006–23–09’’ in two places. This 

document corrects these references. 

DATES: The effective date of this AD 

(2006–23–09) remains December 14, 

2006. 

FOR FURTHER INFORMATION CONTACT: 

Andrew McAnaul, Aerospace Engineer, 

ASW–150 (c/o MIDO–43), 10100 

Reunion Place, Suite 650, San Antonio, 

Texas 78216; telephone: (210) 308–

3365; fax: (210) 308–3370. 

SUPPLEMENTARY INFORMATION:

Discussion 

On October 26, 2006, the FAA issued 

AD 2006–23–09, Amendment 39–14798 

(71 FR 65719, November 9, 2006), 

which applies to Air Tractor, Inc. Model 

AT–602 airplanes. AD 2006–23–09 

requires you to repetitively inspect 

(using the eddy current method) the 

wing center splice joint two outboard 

fastener holes on both of the wing main 

spar lower caps for fatigue cracking; 

repair or replace any wing main spar 

lower cap where fatigue cracking is 

found; and report any fatigue cracking 

found. 

The AD number in the AD is 

incorrectly referenced as ‘‘2006–23–01’’

instead of ‘‘2006–23–09’’ in two places. 

Need for the Correction 

This correction is needed to assure 

that the airplane records and 

documentation shows that the 

applicable AD is complied with. 

Correction of Publication 

Accordingly, the publication of 

November 9, 2006 (71 FR 65719), of 

Amendment 39–14798; AD 2006–23–09, 

which was the subject of FR Doc. 06–

18688, is corrected as follows: 

Section 39.13 [Corrected] 

On page 65719, in the first column 

and sixth line of the document, replace 

‘‘2006–23–01’’ with ‘‘2006–23–09.’’

On page 65721, in the first column 

and fourth line, replace ‘‘2006–23–01’’

with ‘‘2006–23–09.’’

Action is taken herein to correct this 

reference in AD 2006–23–09 and to add 

this AD correction to section 39.13 of 

the Federal Aviation Regulations (14 

CFR 39.13). 

The effective date remains December 

14, 2006. 

Issued in Kansas City, Missouri, on 

November 20, 2006. 

David R. Showers, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E6–20123 Filed 11–28–06; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2005–20141; Directorate 

Identifier 2005–NE–01–AD; Amendment 39–

14836; AD 2006–24–07] 

RIN 2120–AA64 

Airworthiness Directives; Hartzell 

Propeller Inc. Propellers and McCauley 

Propeller Systems Controllable 

Propellers 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Hartzell Propeller Inc. HC, BHC, and 

PHC series propellers; and McCauley 

Propeller Systems controllable 

propellers serviced by Oxford Aviation 

Services Limited, doing business as CSE 

Aviation, in the United Kingdom 

between September 1998 and October 

2003. This AD requires inspecting the 

propeller blades and other critical 

propeller parts for wear and mechanical 

damage. This AD results from findings 

that CSE Aviation failed to perform 

some specific inspections and repairs. 

We are issuing this AD to detect unsafe 

conditions that could result in a 

propeller blade separating from the hub 

and loss of control of the airplane. 

DATES: This AD becomes effective 

Janauary 3, 2007. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

dms.dot.gov or in Room PL–401 on the 

plaza level of the Nassif Building, 400 

Seventh Street, SW., Washington, DC. 

FOR FURTHER INFORMATION CONTACT: 

Timothy Smyth, Aerospace Engineer, 

Chicago Aircraft Certification Office, 

FAA, Small Airplane Directorate, 2300 

East Devon Avenue, Des Plaines, IL 

60018–4696; telephone (847) 294–7132; 

fax (847) 294–7834. 

SUPPLEMENTARY INFORMATION: The FAA 

proposed to amend 14 CFR part 39 with 

a proposed AD. The proposed AD 

applies to certain Hartzell Propeller Inc. 

HC, BHC, and PHC series propellers; 

and McCauley Propeller Systems 

controllable propellers serviced by 

Oxford Aviation Services Limited, doing 

business as CSE Aviation, in the United 

Kingdom between September 1998 and 

October 2003. We published the 

proposed AD in the Federal Register on 

June 15, 2005 (70 FR 34714). That action 

proposed to require inspecting the 

propeller blades and other critical 

propeller parts for wear and mechanical 

damage. 

Examining the AD Docket 

You may examine the docket that 

contains the AD, any comments 

received, and any final disposition in 

person at the Docket Management 

Facility Docket Offices between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The Docket 

Office (telephone (800) 647–5227) is 

located on the plaza level of the 

Department of Transportation Nassif 

Building at the street address stated in 

ADDRESSES. Comments will be available 

in the AD docket shortly after the DMS 

receives them. 

Comments 

We provided the public the 

opportunity to participate in the 


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