Airworthiness Directives; Saab Model SAAB 2000 Airplanes, 52041-52043 [05-17404]

Download as PDF Federal Register / Vol. 70, No. 169 / Thursday, September 1, 2005 / Proposed Rules APU firewall upper frame, part number (P/N) 145–51249–001. However, the service bulletins specify that the APU firewall upper frame may have P/N 145– 51249–001 or 120–10731–001. APU firewall upper frames having either part number are subject to the identified unsafe condition. Therefore, this proposed AD would require modifying the APU firewall upper frame, P/N 145– 51249–001 or 120–10731–001. These differences have been coordinated with the DAC. 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. See the ADDRESSES section for a location to examine the regulatory evaluation. Costs of Compliance This proposed AD would affect about 620 airplanes of U.S. registry. The proposed actions would take about 1 work hour per airplane, at an average labor rate of $65 per work hour. Based on these figures, the estimated cost of the proposed AD for U.S. operators is $40,300, or $65 per airplane. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: 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 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 that the 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, VerDate Aug<18>2005 15:01 Aug 31, 2005 Jkt 205001 List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Safety. 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 Federal Aviation Administration (FAA) amends § 39.13 by adding the following new airworthiness directive (AD): Empresa Brasileira de Aeronautica S.A. (EMBRAER): Docket No. FAA–2005– 22256; Directorate Identifier 2005–NM– 113–AD. Comments Due Date (a) The FAA must receive comments on this AD action by October 3, 2005. Affected ADs (b) None. Unsafe Condition (d) This AD results from the discovery of a hole in the upper frame of the firewall for the auxiliary power unit (APU). We are issuing this AD to prevent smoke from entering the passenger cabin in the event of a fire in the APU compartment. 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. Modification (f) Within 2,500 flight hours or 365 days after the effective date of this AD, whichever Frm 00005 occurs later, modify the APU firewall upper frame, part number 145–51249–001 or 120– 10731–001, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 145LEG–53–0020 (for Model EMB–135BJ airplanes); or Service Bulletin 145–53–0057 (for Model EMB–135ER, –135KE, –135KL, and –135LR airplanes; and Model EMB–145, –145ER, –145MR, –145LR, –145XR, –145MP, and –145EP airplanes); both dated November 30, 2004; as applicable. Alternative Methods of Compliance (AMOCs) (g) The Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. Related Information (h) Brazilian airworthiness directive 2005– 04–03, dated April 30, 2005, also addresses the subject of this AD. Issued in Renton, Washington, on August 24, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–17403 Filed 8–31–05; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2005–22255; Directorate Identifier 2005–NM–106–AD] RIN 2120–AA64 Applicability (c) This AD applies to EMBRAER Model EMB–135BJ airplanes, as identified in EMBRAER Service Bulletin 145LEG–53– 0020, dated November 30, 2004; and Model EMB–135ER, –135KE, –135KL, and –135LR airplanes, and Model EMB–145, –145ER, –145MR, –145LR, –145XR, –145MP, and –145EP airplanes, as identified in EMBRAER Service Bulletin 145–53–0057, dated November 30, 2004; certificated in any category. PO 00000 52041 Fmt 4702 Sfmt 4702 Airworthiness Directives; Saab Model SAAB 2000 Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). AGENCY: SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for certain Saab Model SAAB 2000 airplanes. This proposed AD would require modifying the manual featherand-unfeather system for the propellers to make the design of the system more robust. This proposed AD results from reports of in-flight engine shutdown caused by uncommanded operation of the feather pump of the propeller. We are proposing this AD to prevent uncommanded feathering of the propeller, which could result in the shutdown of an engine during flight and consequent reduced controllability of the airplane. DATES: We must receive comments on this proposed AD by October 3, 2005. E:\FR\FM\01SEP1.SGM 01SEP1 52042 Federal Register / Vol. 70, No. 169 / Thursday, September 1, 2005 / Proposed Rules Use one of the following addresses to submit comments on this proposed 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: Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., Nassif Building, Room PL–401, Washington, DC 20590. • Fax: (202) 493–2251. • Hand Delivery: Room PL–401 on the plaza level of the Nassif Building, 400 Seventh Street SW., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. Contact Saab Aircraft AB, SAAB Aircraft Product Support, S–581.88, ¨ Linkoping, Sweden, for service information identified in this proposed AD. FOR FURTHER INFORMATION CONTACT: Mike Borfitz, Aerospace Engineer, International Branch, ANM–116, FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington 98055–4056; telephone (425) 227–2677; fax (425) 227–1149. SUPPLEMENTARY INFORMATION: ADDRESSES: Comments Invited We invite you to submit any relevant written data, views, or arguments regarding this proposed AD. Send your comments to an address listed in the ADDRESSES section. Include the docket number ‘‘FAA–2005–22255; Directorate Identifier 2005–NM–106–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the proposed AD. We will consider all comments received by the closing date and may amend the proposed AD in light of those comments. 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 proposed AD. Using the search function of that 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 VerDate Aug<18>2005 15:01 Aug 31, 2005 Jkt 205001 19477–78), or you may visit http:// dms.dot.gov. Examining the Docket You may examine the AD docket on the Internet at http://dms.dot.gov, or in person at the Docket Management Facility office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Management Facility office (telephone (800) 647–5227) is located on the plaza level of the Nassif Building at the DOT street address stated in the ADDRESSES section. Comments will be available in the AD docket shortly after the Docket Management System receives them. Discussion The Luftfartsstyrelsen (LFS), which is the airworthiness authority for Sweden, notified us that an unsafe condition may exist on certain Saab Model SAAB 2000 airplanes. The LFS has received reports of in-flight engine shutdown due to uncommanded operation of the feather pump of the propeller, which caused the propeller to feather. The uncommanded activation of the feather pump has been attributed to an uncommanded operation of the remote control circuit breaker (RCCB) within the manual feather-and-unfeather system. This condition, if not corrected, could result in the shutdown of an engine during flight and consequent reduced controllability of the airplane. Relevant Service Information Saab has issued Service Bulletin 2000–61–006, Revision 01, dated February 17, 2005. The service bulletin describes procedures for modifying the manual feather-and-unfeather system for the propellers to make the design of the system more robust. The modification involves replacing the RCCBs with relays, installing new wiring, and making associated structural modifications to the left and right wing fairings. Accomplishing the actions specified in the service information is intended to adequately address the unsafe condition. The LFS mandated the service information and issued Swedish airworthiness directive 1–198, dated February 14, 2005, to ensure the continued airworthiness of these airplanes in Sweden. FAA’s Determination and Requirements of the Proposed AD This airplane model is manufactured in Sweden and is type certificated for operation in the United States under the provisions of section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and the applicable bilateral airworthiness agreement. Pursuant to PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 this bilateral airworthiness agreement, the LFS has kept the FAA informed of the situation described above. We have examined the LFS’s findings, evaluated all pertinent information, and determined that we need to issue an AD for airplanes of this type design that are certificated for operation in the United States. Therefore, we are proposing this AD, which would require accomplishing the actions specified in the service information described previously. Costs of Compliance This proposed AD would affect about 3 airplanes of U.S. registry. The proposed actions would take about 50 work hours per airplane, at an average labor rate of $65 per work hour. Required parts would cost about $13,571 per airplane. Based on these figures, the estimated cost of the proposed AD for U.S. operators is $50,463, or $16,821 per airplane. 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 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 that the 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 E:\FR\FM\01SEP1.SGM 01SEP1 Federal Register / Vol. 70, No. 169 / Thursday, September 1, 2005 / Proposed Rules 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. See the ADDRESSES section for a location to examine the regulatory evaluation. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, 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: Alternative Methods of Compliance (AMOCs) (h) The Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. Related Information (i) Swedish airworthiness directive 1–198, dated February 14, 2005, also addresses the subject of this AD. Issued in Renton, Washington, on August 24, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–17404 Filed 8–31–05; 8:45 am] BILLING CODE 4910–13–P Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 Actions Accomplished Previously (g) A modification accomplished before the effective date of this AD in accordance with Saab Service Bulletin 2000–61–006, dated December 20, 2004, is acceptable for compliance with paragraph (f) of this AD. [Amended] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 2. The Federal Aviation Administration (FAA) amends § 39.13 by adding the following new airworthiness directive (AD): 14 CFR Part 39 Saab Aircraft AB: Docket No. FAA–2005– 22255; Directorate Identifier 2005–NM– 106–AD. [Docket No. FAA–2004–18648; Directorate Identifier 2004–NE–26–AD] RIN 2120–AA64 Comments Due Date (a) The FAA must receive comments on this AD action by October 3, 2005. Affected ADs (b) None. Airworthiness Directives; General Electric Company CF34–1A, –3A, –3A1, –3A2, –3B, and –3B1 Series Turbofan Engines AGENCY: Applicability (c) This AD applies to SAAB Model SAAB 2000 airplanes, certificated in any category, serial numbers –004 through –063 inclusive. Unsafe Condition (d) This AD results from reports of in-flight engine shutdown caused by uncommanded operation of the feather pump of the propeller. We are issuing this AD to prevent uncommanded feathering of the propeller, which could result in the shutdown of an engine during flight and consequent reduced controllability 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. Modification (f) Within 12 months after the effective date of this AD, modify the manual featherand-unfeather system of the propellers by doing all actions specified in the Accomplishment Instructions of Saab Service Bulletin 2000–61–006, Revision 01, dated February 17, 2005. VerDate Aug<18>2005 15:01 Aug 31, 2005 Jkt 205001 Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: The FAA proposes to supersede an existing airworthiness directive (AD) that was issued for General Electric Company (GE) CF34– 3A1 and –3B1 series turbofan engines with certain part numbers (P/Ns) and serial numbers (SNs) of stage 5 low pressure turbine (LPT) disks and stage 6 LPT disks. These engines are installed in Bombardier Canadair CL600–2B19 Regional Jet (RJ) airplanes. This proposed AD would add SNs to the affected disk population for RJ airplanes. This proposed AD would also add GE CF34–1 and –3 series turbofan engines with certain P/Ns and SNs of stage 5 LPT disks and stage 6 LPT disks, to the applicability section. These engines are installed in Bombardier Canadair models CL–600–2A12 (CL– 601), CL–600–2B16 (CL–601–3A), (CL– 601–3R), and (CL–604) Business Jet (BJ) PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 52043 airplanes. This proposed AD would require initial and repetitive visual and eddy current inspections (ECI) of the affected disk population. This proposed AD would also allow replacement of those disks as optional terminating action to the repetitive inspections. Also, this proposed AD would require eventual replacement of the affected disks as terminating action to the repetitive inspections. This proposed AD results from the discovery of additional suspect stage 5 LPT disks and stage 6 LPT disks. These disks could fail due to low-cycle fatigue cracking that may start at the site of an electrical arcout on the disk. We are proposing this AD to prevent low-cycle-fatigue (LCF) failure of stage 5 LPT disks and stage 6 LPT disks, which could lead to uncontained engine failure. DATES: We must receive any comments on this proposed AD by October 31, 2005. ADDRESSES: Use one of the following addresses to comment on this proposed 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: Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL–401, Washington, DC 20590– 0001. • Fax: (202) 493–2251. • Hand Delivery: Room PL–401 on the plaza level of the Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. Contact GE Aircraft Engines, 1000 Western Avenue, Lynn, MA 01910; Attention: CF34 Product Support Engineering, Mail Zone: 34017; telephone (781) 594–6323; fax (781) 594–0600, for the service information identified in this proposed AD. FOR FURTHER INFORMATION CONTACT: Tara Fitzgerald, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803– 5299; telephone (781) 238–7130; fax (781) 238–7199. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments regarding this proposal. Send your comments to an address listed under ADDRESSES. Include ‘‘Docket No. FAA– E:\FR\FM\01SEP1.SGM 01SEP1

Agencies

[Federal Register Volume 70, Number 169 (Thursday, September 1, 2005)]
[Proposed Rules]
[Pages 52041-52043]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-17404]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-22255; Directorate Identifier 2005-NM-106-AD]
RIN 2120-AA64


Airworthiness Directives; Saab Model SAAB 2000 Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for certain Saab Model SAAB 2000 airplanes. This proposed AD would 
require modifying the manual feather-and-unfeather system for the 
propellers to make the design of the system more robust. This proposed 
AD results from reports of in-flight engine shutdown caused by 
uncommanded operation of the feather pump of the propeller. We are 
proposing this AD to prevent uncommanded feathering of the propeller, 
which could result in the shutdown of an engine during flight and 
consequent reduced controllability of the airplane.

DATES: We must receive comments on this proposed AD by October 3, 2005.

[[Page 52042]]


ADDRESSES: Use one of the following addresses to submit comments on 
this proposed 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: Docket Management Facility, U.S. Department of 
Transportation, 400 Seventh Street SW., Nassif Building, Room PL-401, 
Washington, DC 20590.
     Fax: (202) 493-2251.
     Hand Delivery: Room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street SW., Washington, DC, between 9 a.m. 
and 5 p.m., Monday through Friday, except Federal holidays.
    Contact Saab Aircraft AB, SAAB Aircraft Product Support, S-581.88, 
Link[ouml]ping, Sweden, for service information identified in this 
proposed AD.

FOR FURTHER INFORMATION CONTACT: Mike Borfitz, Aerospace Engineer, 
International Branch, ANM-116, FAA, Transport Airplane Directorate, 
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 
227-2677; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to submit any relevant written data, views, or 
arguments regarding this proposed AD. Send your comments to an address 
listed in the ADDRESSES section. Include the docket number ``FAA-2005-
22255; Directorate Identifier 2005-NM-106-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the proposed AD. We will 
consider all comments received by the closing date and may amend the 
proposed AD in light of those comments.
    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 proposed AD. Using the search function of 
that 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 Docket

    You may examine the AD docket on the Internet at http://
dms.dot.gov, or in person at the Docket Management Facility office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the DOT 
street address stated in the ADDRESSES section. Comments will be 
available in the AD docket shortly after the Docket Management System 
receives them.

Discussion

    The Luftfartsstyrelsen (LFS), which is the airworthiness authority 
for Sweden, notified us that an unsafe condition may exist on certain 
Saab Model SAAB 2000 airplanes. The LFS has received reports of in-
flight engine shutdown due to uncommanded operation of the feather pump 
of the propeller, which caused the propeller to feather. The 
uncommanded activation of the feather pump has been attributed to an 
uncommanded operation of the remote control circuit breaker (RCCB) 
within the manual feather-and-unfeather system. This condition, if not 
corrected, could result in the shutdown of an engine during flight and 
consequent reduced controllability of the airplane.

Relevant Service Information

    Saab has issued Service Bulletin 2000-61-006, Revision 01, dated 
February 17, 2005. The service bulletin describes procedures for 
modifying the manual feather-and-unfeather system for the propellers to 
make the design of the system more robust. The modification involves 
replacing the RCCBs with relays, installing new wiring, and making 
associated structural modifications to the left and right wing 
fairings. Accomplishing the actions specified in the service 
information is intended to adequately address the unsafe condition. The 
LFS mandated the service information and issued Swedish airworthiness 
directive 1-198, dated February 14, 2005, to ensure the continued 
airworthiness of these airplanes in Sweden.

FAA's Determination and Requirements of the Proposed AD

    This airplane model is manufactured in Sweden and is type 
certificated for operation in the United States under the provisions of 
section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and 
the applicable bilateral airworthiness agreement. Pursuant to this 
bilateral airworthiness agreement, the LFS has kept the FAA informed of 
the situation described above. We have examined the LFS's findings, 
evaluated all pertinent information, and determined that we need to 
issue an AD for airplanes of this type design that are certificated for 
operation in the United States.
    Therefore, we are proposing this AD, which would require 
accomplishing the actions specified in the service information 
described previously.

Costs of Compliance

    This proposed AD would affect about 3 airplanes of U.S. registry. 
The proposed actions would take about 50 work hours per airplane, at an 
average labor rate of $65 per work hour. Required parts would cost 
about $13,571 per airplane. Based on these figures, the estimated cost 
of the proposed AD for U.S. operators is $50,463, or $16,821 per 
airplane.

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 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 that the 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

[[Page 52043]]

    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. See the 
ADDRESSES section for a location to examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, 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.


Sec.  39.13  [Amended]

    2. The Federal Aviation Administration (FAA) amends Sec.  39.13 by 
adding the following new airworthiness directive (AD):

Saab Aircraft AB: Docket No. FAA-2005-22255; Directorate Identifier 
2005-NM-106-AD.

Comments Due Date

    (a) The FAA must receive comments on this AD action by October 
3, 2005.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to SAAB Model SAAB 2000 airplanes, 
certificated in any category, serial numbers -004 through -063 
inclusive.

Unsafe Condition

    (d) This AD results from reports of in-flight engine shutdown 
caused by uncommanded operation of the feather pump of the 
propeller. We are issuing this AD to prevent uncommanded feathering 
of the propeller, which could result in the shutdown of an engine 
during flight and consequent reduced controllability 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.

Modification

    (f) Within 12 months after the effective date of this AD, modify 
the manual feather-and-unfeather system of the propellers by doing 
all actions specified in the Accomplishment Instructions of Saab 
Service Bulletin 2000-61-006, Revision 01, dated February 17, 2005.

Actions Accomplished Previously

    (g) A modification accomplished before the effective date of 
this AD in accordance with Saab Service Bulletin 2000-61-006, dated 
December 20, 2004, is acceptable for compliance with paragraph (f) 
of this AD.

Alternative Methods of Compliance (AMOCs)

    (h) The Manager, International Branch, ANM-116, Transport 
Airplane Directorate, FAA, has the authority to approve AMOCs for 
this AD, if requested in accordance with the procedures found in 14 
CFR 39.19.

Related Information

    (i) Swedish airworthiness directive 1-198, dated February 14, 
2005, also addresses the subject of this AD.

    Issued in Renton, Washington, on August 24, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-17404 Filed 8-31-05; 8:45 am]
BILLING CODE 4910-13-P