Airworthiness Directives; Hamilton Sundstrand Corporation Propellers, 9001-9003 [2013-02719]

Download as PDF Federal Register / Vol. 78, No. 26 / Thursday, February 7, 2013 / Proposed Rules under the criteria of the Regulatory Flexibility Act. 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 airworthiness directive (AD): ■ The Boeing Company: Docket No. FAA– 2013–0089; Directorate Identifier 2012– NM–166–AD. (a) Comments Due Date We must receive comments by March 25, 2013. (b) Affected ADs None. (c) Applicability This AD applies to The Boeing Company Model 747–400 series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 747–24A2360, Revision 1, dated May 2, 2012. (d) Subject Joint Aircraft System Component (JASC)/ Air Transport Association (ATA) of America Code 24, Electrical Power. (e) Unsafe Condition This AD was prompted by reports of auxiliary power unit (APU) faults due to power feeder cable chafing. We are issuing this AD to detect and correct chafing of the APU power feeder cables within a flammable fluid leakage zone, which, with arcing, could result in fire and structural damage. mstockstill on DSK4VPTVN1PROD with PROPOSALS (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Inspection, Related Investigative and Corrective Actions Except as required by paragraph (h)(2) of this AD, within the compliance time specified in paragraph 1.E., ‘‘Compliance,’’ of Boeing Alert Service Bulletin 747–24A2360, Revision 1, dated May 2, 2012: Do a detailed inspection for damage (e.g., surface finish integrity, excessive wear or possible heat damage) of the APU power feeder cables within each wire bundle on the left and right of the bulkhead, and do all applicable related VerDate Mar<15>2010 16:53 Feb 06, 2013 Jkt 229001 investigative and corrective actions, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 747–24A2360, Revision 1, dated May 2, 2012; except as required by paragraph (h)(1) of this AD. If no damage is found during this inspection, before further flight, replace the clamp(s) and install grommets, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 747–24A2360, Revision 1, dated May 2, 2012. Do all applicable related investigative and correction actions before further flight. (h) Exceptions to the Service Information (1) If any damage is found during any inspection required by this AD, and Boeing Alert Service Bulletin 747–24A2360, Revision 1, dated May 2, 2012, specifies to contact Boeing for appropriate action: Before further flight, repair the damage using a method approved in accordance with paragraph (k) of this AD. (2) Where Boeing Alert Service Bulletin 747–24A2360, Revision 1, dated May 2, 2012, specifies a compliance time after the date on the service bulletin, this AD requires compliance within the specified compliance time after the effective date of this AD. (i) Parts Installation Limitation As of the effective date of this AD, no person may install, on any airplane, any wiring support clamp, except for part number TA025097L16, in any area of the airplane, as specified in Boeing Alert Service Bulletin 747–24A2360, Revision 1, dated May 2, 2012. 9001 (l) Related Information (1) For more information about this AD, contact Georgios Roussos, Aerospace Engineer, Systems and Equipment Branch, ANM–130S, Seattle Aircraft Certification Office, FAA, 1601 Lind Avenue SW., Renton, Washington 98057–3356; phone: 425–917– 6482; fax: 425–917–6590; email: georgios.roussos@faa.gov. (2) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P. O. Box 3707, MC 2H–65, Seattle, WA 98124–2207; telephone 206– 544–5000, extension 1; fax 206–766–5680; Internet https://www.myboeingfleet.com. You may review copies of the referenced 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. Issued in Renton, Washington, on January 19, 2013. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2013–02717 Filed 2–6–13; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration (j) Credit for Previous Actions This paragraph provides credit for the actions required by paragraph (g) of this AD, if those actions were performed before the effective date of this AD using Boeing Alert Service Bulletin 747–24A2360, dated January 18, 2012, which is not incorporated by reference in this AD. 14 CFR Part 39 (k) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to the attention of the person identified in the Related Information section of this AD. Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. (3) An AMOC that provides an acceptable level of safety may be used for any repair required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO, to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane, and the approval must specifically refer to this AD. ACTION: PO 00000 Frm 00015 Fmt 4702 Sfmt 4702 [Docket No. FAA–2013–0056; Directorate Identifier 2012–NE–48–AD] RIN 2120–AA64 Airworthiness Directives; Hamilton Sundstrand Corporation Propellers Notice of proposed rulemaking (NPRM), DOT. We propose to adopt a new airworthiness directive (AD) for Hamilton Sundstrand Corporation 14SF–7, 14SF–15, and 14SF–23 series propellers using certain Hamilton Sundstrand Corporation auxiliary pumps and motors (auxiliary feathering pumps). This proposed AD was prompted by a report of a propeller not moving into the feathering position after an engine in-flight shutdown. This proposed AD would require removing certain serial numbers (S/Ns) of auxiliary feathering pumps from service. We are proposing this AD to prevent propellers from failing to move into the feathering position after an engine inflight shutdown. Propellers failing to feather can cause high drag on the propeller, asymmetric thrust, and difficulty of, or impossibility in, controlling the airplane. DATES: We must receive comments on this proposed AD by March 25, 2013. SUMMARY: E:\FR\FM\07FEP1.SGM 07FEP1 9002 Federal Register / Vol. 78, No. 26 / Thursday, February 7, 2013 / Proposed Rules You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to https://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: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact Hamilton Sundstrand Propeller Technical Team, One Hamilton Road, Mail Stop 1–3– AB43, Windsor Locks, CT 06096–1010; fax: 860–654–5107. You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. ADDRESSES: Examining the AD Docket You may examine the AD docket on the Internet at https:// 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 (phone: 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Michael Schwetz, Aerospace Engineer, Boston Aircraft Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781– 238–7761; fax: 781–238–7170; email: michael.schwetz@faa.gov. SUPPLEMENTARY INFORMATION: mstockstill on DSK4VPTVN1PROD with PROPOSALS Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA– 2013–0056; Directorate Identifier 2012– NE–48–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 VerDate Mar<15>2010 16:53 Feb 06, 2013 Jkt 229001 proposed AD because of those comments. We will post all comments we receive, without change, to https:// 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. airplanes of U.S. registry. We also estimate that it would take about 1.5 hours per propeller to comply with this proposed AD. The average labor rate is $85 per hour. Required parts cost is $6,000 per propeller. Based on these figures, we estimate the cost of the proposed AD on U.S. operators to be $1,740,210. Discussion We received a report of an engine inflight shutdown on a Bombardier DHC– 8–400 airplane, where the propeller did not move into the feathering position. Bombardier was in contact with Hamilton Sundstrand Corporation inquiring about the auxiliary feathering pump used on the Hamilton Sundstrand Corporation propellers. Hamilton Sundstrand Corporation found the auxiliary feathering pump used on their 14SF series propeller is a similar design as that used on the DHC–8–400 airplane. The Hamilton Sundstrand investigation revealed some of their auxiliary feathering pump motors had internal corrosion that may cause the stator magnets in the pump motor to fail and rotate into the path of the armature, preventing the pump from feathering the propeller. This condition, if not corrected, could result in propellers failing to feather, causing high drag on the propeller, asymmetric thrust, and difficulty of, or impossibility in, controlling the airplane. Authority for This Rulemaking Relevant Service Information We reviewed Hamilton Sundstrand Corporation Alert Service Bulletin (ASB) No. 14SF–61–A165, dated September 25, 2012. The ASB lists by S/ N the affected Hamilton Sundstrand Corporation auxiliary feathering pumps, part number (P/N) 782655–3 (Aerocontrolex P/N 4122–006009) and provides instructions for getting the pumps modified. FAA’s Determination We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of the same type design. Proposed AD Requirements This proposed AD would require removing the affected auxiliary feathering pumps from service. Costs of Compliance We estimate that this proposed AD affects 284 Hamilton Sundstrand Corporation 14SF–7, 14SF–15, and 14SF–23 series propellers using affected auxiliary feathering pumps installed on PO 00000 Frm 00016 Fmt 4702 Sfmt 4702 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), (3) Will not affect intrastate aviation in Alaska to the extent that it justifies making a regulatory distinction. (4) 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. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. E:\FR\FM\07FEP1.SGM 07FEP1 Federal Register / Vol. 78, No. 26 / Thursday, February 7, 2013 / Proposed Rules 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 airworthiness directive (AD): ■ Hamilton Sundstrand Corporation: Docket No. FAA–2013–0056; Directorate Identifier 2012–NE–48–AD. (a) Comments Due Date We must receive comments by March 25, 2013. (b) Affected ADs None. (c) Applicability This AD applies to Hamilton Sundstrand Corporation 14SF–7, 14SF–15, and 14SF–23 series propellers, using Hamilton Sundstrand Corporation auxiliary pumps and motors (auxiliary feathering pumps), part number (P/N) 782655–3 (Aerocontrolex P/N 4122– 006009), with the following serial numbers (S/Ns): (1) S/Ns 1 through 365, excluding 95, 108, 122, 177, 193, 278, 285, 293, 297, 310, and 362. (2) S/Ns 366 through 710, excluding 387, 405, 423, 481, 506, 574, 584, 596, 632, and 669. (3) S/Ns 711 through 1035, excluding 733, 824, 852, and 994. (4) S/Ns 1036 through 1475, excluding 1038, 1054, 1081, 1086, 1098, and 1177. (5) S/Ns 1476 through 1615, excluding 1523. (6) S/Ns 4516 through 4521. mstockstill on DSK4VPTVN1PROD with PROPOSALS (d) Unsafe Condition This AD was prompted by a report of a propeller not moving into the feathering position after an engine in-flight shutdown. We are issuing this AD to prevent propellers from failing to move into the feathering position after an engine in-flight shutdown. Propellers failing to feather can cause high drag on the propeller, asymmetric thrust, and difficulty of or impossibility in controlling the airplane. (e) Compliance Comply with this AD within the compliance times specified, unless already done. (f) Auxiliary Feathering Pump Removal Remove the affected auxiliary feathering pumps from service at the following: (1) Not later than April 30, 2013, for the affected S/Ns listed in paragraph (c)(1) of this AD. VerDate Mar<15>2010 16:53 Feb 06, 2013 Jkt 229001 (2) Not later than October 31, 2013, for the affected S/Ns listed in paragraph (c)(2) of this AD. (3) Not later than April 30, 2014, for the affected S/Ns listed in paragraph (c)(3) of this AD. (4) Not later than October 31, 2014, for the affected S/Ns listed in paragraph (c)(4) of this AD. (5) Not later than April 30, 2015, for the affected S/Ns listed in paragraph (c)(5) of this AD. (6) Not later than April 30, 2014, for the affected S/Ns listed in paragraph (c)(6) of this AD. (g) Installation Prohibition After the effective date of this AD, do not install any auxiliary feathering pump listed as affected in paragraph (c) this AD, unless the auxiliary feathering pump has been properly modified. Properly modified auxiliary feathering pumps will have the letter ‘‘M’’ following the pump S/N, as described in Hamilton Sundstrand Corporation Alert Service Bulletin No. 14SF– 61–A165, dated September 25, 2012. 9003 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2012–1329; Directorate Identifier 2012–NE–46–AD] RIN 2120–AA64 Airworthiness Directives; Engine Alliance Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for certain Engine Alliance GP7270 and GP7277 turbofan engines. This proposed AD was prompted by damage to the highpressure compressor (HPC) stage 7–9 spool caused by failure of the baffle plate feature on affected HPC stage 6 disks. This proposed AD would require initial and repetitive borescope (h) Alternative Methods of Compliance inspections of the baffle plate feature (AMOCs) and removal from service of the HPC The Manager, Boston Aircraft Certification stage 6 disk before further flight, if the Office, FAA, may approve AMOCs for this plate is missing material. This proposed AD. Use the procedures found in 14 CFR AD would also require mandatory 39.19 to make your request. removal from service of these HPC stage 6 disks at the next HPC module (i) Related Information exposure. We are proposing this AD to (1) For more information about this AD, prevent uncontained failure of the HPC contact Michael Schwetz, Aerospace stage 7–9 spool, uncontained engine Engineer, Boston Aircraft Certification Office, failure, and damage to the airplane. FAA, Engine and Propeller Directorate, 12 DATES: We must receive comments on New England Executive Park, Burlington, this proposed AD by April 8, 2013. MA 01803; phone: 781–238–7761; fax: 781– ADDRESSES: You may send comments, 238–7170; email: michael.schwetz@faa.gov. using the procedures found in 14 CFR (2) For service information identified in 11.43 and 11.45, by any of the following this AD, contact Hamilton Sundstrand methods: Propeller Technical Team, One Hamilton • Federal eRulemaking Portal: Go to Road, Mail Stop 1–3–AB43, Windsor Locks, CT 06096–1010; fax: 860–654–5107. You may https://www.regulations.gov. Follow the instructions for submitting comments. view this service information at the FAA, • Fax: 202–493–2251. Engine & Propeller Directorate, 12 New • Mail: U.S. Department of England Executive Park, Burlington, MA. For Transportation, Docket Operations, information on the availability of this M–30, West Building Ground Floor, material at the FAA, call 781–238–7125. Room W12–140, 1200 New Jersey Issued in Burlington, Massachusetts, on Avenue SE., Washington, DC 20590. January 29, 2013. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 Colleen M. D’Alessandro, p.m., Monday through Friday, except Assistant Manager, Engine & Propeller Federal holidays. Directorate, Aircraft Certification Service. For service information identified in [FR Doc. 2013–02719 Filed 2–6–13; 8:45 am] this proposed AD, contact Engine BILLING CODE 4910–13–P Alliance, 411 Silver Lane, East Hartford, CT 06118, phone: 800–565–0140; Web site: https://www.engine allianceportal.com. You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. PO 00000 Frm 00017 Fmt 4702 Sfmt 4702 SUMMARY: E:\FR\FM\07FEP1.SGM 07FEP1

Agencies

[Federal Register Volume 78, Number 26 (Thursday, February 7, 2013)]
[Proposed Rules]
[Pages 9001-9003]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-02719]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2013-0056; Directorate Identifier 2012-NE-48-AD]
RIN 2120-AA64


Airworthiness Directives; Hamilton Sundstrand Corporation 
Propellers

ACTION: Notice of proposed rulemaking (NPRM), DOT.

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
Hamilton Sundstrand Corporation 14SF-7, 14SF-15, and 14SF-23 series 
propellers using certain Hamilton Sundstrand Corporation auxiliary 
pumps and motors (auxiliary feathering pumps). This proposed AD was 
prompted by a report of a propeller not moving into the feathering 
position after an engine in-flight shutdown. This proposed AD would 
require removing certain serial numbers (S/Ns) of auxiliary feathering 
pumps from service. We are proposing this AD to prevent propellers from 
failing to move into the feathering position after an engine in-flight 
shutdown. Propellers failing to feather can cause high drag on the 
propeller, asymmetric thrust, and difficulty of, or impossibility in, 
controlling the airplane.

DATES: We must receive comments on this proposed AD by March 25, 2013.

[[Page 9002]]


ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to https://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: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Hamilton Sundstrand Propeller Technical Team, One Hamilton Road, Mail 
Stop 1-3-AB43, Windsor Locks, CT 06096-1010; fax: 860-654-5107. You may 
view this service information at the FAA, Engine & Propeller 
Directorate, 12 New England Executive Park, Burlington, MA. For 
information on the availability of this material at the FAA, call 781-
238-7125.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://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 (phone: 800-647-5527) is in the ADDRESSES 
section. Comments will be available in the AD docket shortly after 
receipt.

FOR FURTHER INFORMATION CONTACT: Michael Schwetz, Aerospace Engineer, 
Boston Aircraft Certification Office, FAA, Engine and Propeller 
Directorate, 12 New England Executive Park, Burlington, MA 01803; 
phone: 781-238-7761; fax: 781-238-7170; email: michael.schwetz@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2013-0056; 
Directorate Identifier 2012-NE-48-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 https://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

    We received a report of an engine in-flight shutdown on a 
Bombardier DHC-8-400 airplane, where the propeller did not move into 
the feathering position. Bombardier was in contact with Hamilton 
Sundstrand Corporation inquiring about the auxiliary feathering pump 
used on the Hamilton Sundstrand Corporation propellers. Hamilton 
Sundstrand Corporation found the auxiliary feathering pump used on 
their 14SF series propeller is a similar design as that used on the 
DHC-8-400 airplane. The Hamilton Sundstrand investigation revealed some 
of their auxiliary feathering pump motors had internal corrosion that 
may cause the stator magnets in the pump motor to fail and rotate into 
the path of the armature, preventing the pump from feathering the 
propeller. This condition, if not corrected, could result in propellers 
failing to feather, causing high drag on the propeller, asymmetric 
thrust, and difficulty of, or impossibility in, controlling the 
airplane.

Relevant Service Information

    We reviewed Hamilton Sundstrand Corporation Alert Service Bulletin 
(ASB) No. 14SF-61-A165, dated September 25, 2012. The ASB lists by S/N 
the affected Hamilton Sundstrand Corporation auxiliary feathering 
pumps, part number (P/N) 782655-3 (Aerocontrolex P/N 4122-006009) and 
provides instructions for getting the pumps modified.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

Proposed AD Requirements

    This proposed AD would require removing the affected auxiliary 
feathering pumps from service.

Costs of Compliance

    We estimate that this proposed AD affects 284 Hamilton Sundstrand 
Corporation 14SF-7, 14SF-15, and 14SF-23 series propellers using 
affected auxiliary feathering pumps installed on airplanes of U.S. 
registry. We also estimate that it would take about 1.5 hours per 
propeller to comply with this proposed AD. The average labor rate is 
$85 per hour. Required parts cost is $6,000 per propeller. Based on 
these figures, we estimate the cost of the proposed AD on U.S. 
operators to be $1,740,210.

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),
    (3) Will not affect intrastate aviation in Alaska to the extent 
that it justifies making a regulatory distinction.
    (4) 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.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

[[Page 9003]]

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

0
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]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

Hamilton Sundstrand Corporation: Docket No. FAA-2013-0056; 
Directorate Identifier 2012-NE-48-AD.

(a) Comments Due Date

    We must receive comments by March 25, 2013.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Hamilton Sundstrand Corporation 14SF-7, 14SF-
15, and 14SF-23 series propellers, using Hamilton Sundstrand 
Corporation auxiliary pumps and motors (auxiliary feathering pumps), 
part number (P/N) 782655-3 (Aerocontrolex P/N 4122-006009), with the 
following serial numbers (S/Ns):
    (1) S/Ns 1 through 365, excluding 95, 108, 122, 177, 193, 278, 
285, 293, 297, 310, and 362.
    (2) S/Ns 366 through 710, excluding 387, 405, 423, 481, 506, 
574, 584, 596, 632, and 669.
    (3) S/Ns 711 through 1035, excluding 733, 824, 852, and 994.
    (4) S/Ns 1036 through 1475, excluding 1038, 1054, 1081, 1086, 
1098, and 1177.
    (5) S/Ns 1476 through 1615, excluding 1523.
    (6) S/Ns 4516 through 4521.

(d) Unsafe Condition

    This AD was prompted by a report of a propeller not moving into 
the feathering position after an engine in-flight shutdown. We are 
issuing this AD to prevent propellers from failing to move into the 
feathering position after an engine in-flight shutdown. Propellers 
failing to feather can cause high drag on the propeller, asymmetric 
thrust, and difficulty of or impossibility in controlling the 
airplane.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(f) Auxiliary Feathering Pump Removal

    Remove the affected auxiliary feathering pumps from service at 
the following:
    (1) Not later than April 30, 2013, for the affected S/Ns listed 
in paragraph (c)(1) of this AD.
    (2) Not later than October 31, 2013, for the affected S/Ns 
listed in paragraph (c)(2) of this AD.
    (3) Not later than April 30, 2014, for the affected S/Ns listed 
in paragraph (c)(3) of this AD.
    (4) Not later than October 31, 2014, for the affected S/Ns 
listed in paragraph (c)(4) of this AD.
    (5) Not later than April 30, 2015, for the affected S/Ns listed 
in paragraph (c)(5) of this AD.
    (6) Not later than April 30, 2014, for the affected S/Ns listed 
in paragraph (c)(6) of this AD.

(g) Installation Prohibition

    After the effective date of this AD, do not install any 
auxiliary feathering pump listed as affected in paragraph (c) this 
AD, unless the auxiliary feathering pump has been properly modified. 
Properly modified auxiliary feathering pumps will have the letter 
``M'' following the pump S/N, as described in Hamilton Sundstrand 
Corporation Alert Service Bulletin No. 14SF-61-A165, dated September 
25, 2012.

(h) Alternative Methods of Compliance (AMOCs)

    The Manager, Boston Aircraft Certification Office, FAA, may 
approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 
to make your request.

(i) Related Information

    (1) For more information about this AD, contact Michael Schwetz, 
Aerospace Engineer, Boston Aircraft Certification Office, FAA, 
Engine and Propeller Directorate, 12 New England Executive Park, 
Burlington, MA 01803; phone: 781-238-7761; fax: 781-238-7170; email: 
michael.schwetz@faa.gov.
    (2) For service information identified in this AD, contact 
Hamilton Sundstrand Propeller Technical Team, One Hamilton Road, 
Mail Stop 1-3-AB43, Windsor Locks, CT 06096-1010; fax: 860-654-5107. 
You may view this service information at the FAA, Engine & Propeller 
Directorate, 12 New England Executive Park, Burlington, MA. For 
information on the availability of this material at the FAA, call 
781-238-7125.


    Issued in Burlington, Massachusetts, on January 29, 2013.
Colleen M. D'Alessandro,
Assistant Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2013-02719 Filed 2-6-13; 8:45 am]
BILLING CODE 4910-13-P
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