Airworthiness Directives; Eurocopter France Helicopters, 16200-16202 [2013-05876]

Download as PDF 16200 Federal Register / Vol. 78, No. 50 / Thursday, March 14, 2013 / Proposed Rules (d) Subject Joint Aircraft System Component (JASC)/ Air Transport Association (ATA) of America Code 28, Fuel. (e) Unsafe Condition This AD was prompted by fuel system reviews conducted by the manufacturer. We are issuing this AD to reduce the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. tkelley on DSK3SPTVN1PROD with PROPOSALS (g) Retained Inspection and Corrective Action This paragraph restates the requirements of paragraph (g) of AD 2009–26–16, Amendment 39–16155 (74 FR 69249, December 31, 2009), with revised service information. For airplanes identified in Boeing Service Bulletin MD11–28–126, Revision 1, dated June 18, 2009: Within 60 months after February 4, 2010 (the effective date of AD 2009–26–16), do the actions specified in paragraphs (g)(1) through (g)(5) of this AD, and do all applicable corrective actions, in accordance with the Accomplishment Instructions of Boeing Service Bulletin MD11–28–126, Revision 1, dated June 18, 2009; or Boeing Service Bulletin MD11–28–126, Revision 4, dated November 29, 2011; except as required by paragraph (j) of this AD. After the effective date of this AD, only Boeing Service Bulletin MD11–28–126, Revision 4, dated November 29, 2011, may be used. Do all applicable corrective actions before further flight. (1) Do a general visual inspection of the wire bundles between Stations 1238.950 and 1361.000 to determine if wires touch the upper surface of the center upper auxiliary fuel tank, and mark the location, as applicable. (2) Do a detailed inspection for splices and damage of all wire bundles above the center upper auxiliary fuel tank between Stations 1218.950 and 1381.000. (3) Do a detailed inspection for damage (burn marks) of the upper surface of the center upper auxiliary fuel tank. (4) Do a detailed inspection for damage (burn marks) on the fuel vapor barrier seal. (5) Install a nonmetallic barrier/shield sleeving, new clamps, new attaching hardware, and a new extruded channel. (h) New Inspections and Corrective Action for Group 1, Configuration 2; Group 2, Configuration 2; and Group 5, Configuration 2 Airplanes For airplanes in Group 1, Configuration 2; Group 2, Configuration 2; and Group 5, Configuration 2; as identified in Boeing Service Bulletin MD11–28–126, Revision 4, dated November 29, 2011: Within 60 months after the effective date of this AD, do a detailed inspection of wire bundles for splices and damage (chafing, arcing, and broken insulation) and damage (burn marks) on the upper surface of the center upper VerDate Mar<15>2010 16:02 Mar 13, 2013 Jkt 229001 auxiliary fuel tank and fuel vapor barrier seal; install barrier/shield sleeving and clamping; and do all applicable corrective actions at the locations specified in paragraphs (h)(1) through (h)(3) of this AD, in accordance with the Accomplishment Instructions of Boeing Service Bulletin MD11–28–126, Revision 4, dated November 29, 2011, except as required by paragraph (k)(3) of this AD. Do all applicable corrective actions before further flight. (1) For Group 1, Configuration 2 airplanes: between Stations 1238.950 and 1381.000, and Stations 1238.950 and 1256.000, and Stations 1238.950 and 1256.800, depending on passenger or freighter configuration. (2) For Group 2, Configuration 2 airplanes: between Stations 1238.950 and 1275.250, and Stations 1238.950 and 1275.250, passenger configuration only. (3) For Group 5, Configuration 2 airplanes: between Stations 1381.000 and 1238.950. (i) Credit for Previous Actions (1) This paragraph provides credit for actions required by paragraph (g) of this AD, if those actions were performed before the effective date of this AD, using the service bulletins specified in paragraphs (i)(1)(i), (i)(1)(ii), or (i)(1)(iii) of this AD. (i) Boeing Service Bulletin MD11–28–126, Revision 1, dated June 18, 2009. (ii) Boeing Service Bulletin MD11–28–126, Revision 2, dated November 18, 2010, which is not incorporated by reference in this AD. (iii) Boeing Service Bulletin MD11–28–126, Revision 3, dated June 3, 2011, which is not incorporated by reference in this AD. (2) This paragraph provides credit for actions required by paragraph (h) of this AD, if those actions were performed before the effective date of this AD, using Boeing Service Bulletin MD11–28–126, Revision 3, dated June 3, 2011. (j) Repair Where Boeing Service Bulletin MD11–28– 126, Revision 1, dated June 18, 2009; or Boeing Service Bulletin MD11–28–126, Revision 4, dated November 29, 2011; specifies to contact The Boeing Company for repair instructions: Before further flight, repair the auxiliary fuel tank in accordance with a method approved by the Manager, Los Angeles Aircraft Certification Office (ACO), FAA. 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. (k) Alternative Methods of Compliance (AMOCs) (1) The Manager, Los Angeles 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 Los Angeles ACO, send it to the attention of the person identified in the Related Information section of this AD. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager PO 00000 Frm 00005 Fmt 4702 Sfmt 4702 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 Structures Authorized Representative for the Boeing Commercial Airplanes Delegation Option Authorization Organization who has been authorized by the Manager, Los Angeles ACO, to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane, and 14 CFR 25.571, Amendment 45, and the approval must specifically refer to this AD. (4) AMOCs approved for AD 2009–26–16, Amendment 39–16155 (74 FR 69249, December 31, 2009), are approved as AMOCs for the corresponding requirements of this AD. (l) Related Information (1) For more information about this AD, contact Samuel Lee, Aerospace Engineer, Propulsion Branch, ANM–140L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, CA 90712– 4137; phone: (562) 627–5262; fax: (562) 627– 5210; email: samuel.lee@faa.gov. (2) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, 3855 Lakewood Boulevard, MC D800–0019, Long Beach, CA 90846–0001; telephone 206–544–5000, extension 2; fax 206–766–5683; 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 March 8, 2013. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2013–05864 Filed 3–13–13; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2013–0240; Directorate Identifier 2011–SW–060–AD] RIN 2120–AA64 Airworthiness Directives; Eurocopter France Helicopters Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for certain Eurocopter France (Eurocopter) Model AS350 and AS355 helicopters. This proposed AD would require inspecting SUMMARY: E:\FR\FM\14MRP1.SGM 14MRP1 Federal Register / Vol. 78, No. 50 / Thursday, March 14, 2013 / Proposed Rules the tail rotor control stop screws to determine if they are correctly aligned and adjusting the screws if they are misaligned. This proposed AD is prompted by the discovery of a loose nut on the tail rotor control stop and a misaligned tail rotor control stop screw. The proposed actions are intended detect a loose nut or a misaligned stop screw, which, if not corrected, could limit yaw authority, and consequently, result in a loss of helicopter control. DATES: We must receive comments on this proposed AD by May 13, 2013. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Docket: Go to https://www.regulations.gov. Follow the online instructions for sending your comments electronically. • Fax: 202–493–2251. • Mail: Send comments to the U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590–0001. • Hand Delivery: Deliver to the ‘‘Mail’’ address between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. tkelley on DSK3SPTVN1PROD with PROPOSALS Examing the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov or in person at the Docket Operations Office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the economic evaluation, any comments received, and other information. The street address for the Docket Operations Office (telephone 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. For service information identified in this proposed AD, contact American Eurocopter Corporation, 2701 N. Forum Drive, Grand Prairie, TX 75052; telephone (972) 641–0000 or (800) 232– 0323; fax (972) 641–3775; or at https:// www.eurocopter.com/techpub. You may review the referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 76137. FOR FURTHER INFORMATION CONTACT: Matt Fuller, Aviation Safety Engineer, Continued Operational Safety, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone 817–222–5110; email matthew.fuller@faa.gov. SUPPLEMENTARY INFORMATION: VerDate Mar<15>2010 16:02 Mar 13, 2013 Jkt 229001 Comments Invited We invite you to participate in this rulemaking by submitting written comments, data, or views. We also invite comments relating to the economic, environmental, energy, or federalism impacts that might result from adopting the proposals in this document. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. To ensure the docket does not contain duplicate comments, commenters should send only one copy of written comments, or if comments are filed electronically, commenters should submit only one time. We will file in the docket all comments that we receive, as well as a report summarizing each substantive public contact with FAA personnel concerning this proposed rulemaking. Before acting on this proposal, we will consider all comments we receive on or before the closing date for comments. We will consider comments filed after the comment period has closed if it is possible to do so without incurring expense or delay. We may change this proposal in light of the comments we receive. Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued EASA AD No. 2011– 0164, dated August 31, 2011, to correct an unsafe condition for Eurocopter Model AS350B, AS350BA, AS350BB, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters with either an autopilot or certain modifications installed. EASA advises that during take-off with a sling load, the pilot of a Model AS350B3 helicopter reached one of the yaw stops before its usual position. The inspection that followed revealed that a tail rotor control stop nut was loose and that the corresponding tail rotor control stop screw was ‘‘out of adjustment.’’ EASA states that this condition, if not detected and corrected, ‘‘can lead to the loss of adjustment of the affected stop and consequently limit yaw authority, possibly resulting in loss of control of the helicopter.’’ FAA’s Determination These helicopters have been approved by the aviation authority of France and are approved for operation in the United States. Pursuant to our bilateral agreement with France, EASA, its technical representative, has notified us PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 16201 of the unsafe condition described in its AD. We are proposing this AD because we evaluated all known relevant information and determined that an unsafe condition is likely to exist or develop on other products of the same type design. Related Service Information Eurocopter has issued Alert Service Bulletin (ASB) No. AS350–05.00.64 for Model AS350B, BA, BB, B1, B2, B3, and D civil helicopters and Model AS350L1 military helicopters, and ASB No. AS355–05.00.59 for Model AS355E, F, F1, F2, N, and NP civil helicopters, both Revision 0 and both dated August 30, 2011. The ASBs specify inspecting the locking of the stop screws and, if warranted, adjusting the stops, marking the screw/nut assembly with a red line of paint, and periodically inspecting the paint line’s alignment on the screw/nut assembly. Proposed AD Requirements This proposed AD would require inspecting the locking of the stop screws within 110 hours time-in-service (TIS). If the stop screw turns, the proposed AD would require adjusting the stops. After adjusting the stops or if the screw does not turn, this proposed AD would require marking a line of red paint on the screw-nut assembly. Thereafter, at intervals not to exceed 110 hours TIS, this proposed AD would require inspecting the locking of the screws and determining whether the red paint line on the screw and nut is aligned. If not aligned, this proposed AD would require removing the paint, readjusting the stops, and marking a new line of paint. Differences Between This Proposed AD and the EASA AD The EASA AD would require contacting Eurocopter if the red paint line on the screw/nut assembly is not aligned after an inspection. This proposed AD would not. The EASA AD applies to Eurocopter Model AS350BB helicopters. This proposed AD would not because Model AS350BB does not have an FAA type certificate. However, the proposed AD would apply to Eurocopter Model AS350C and AS350D1 helicopters because they have an FAA type certificate and because they have similar tail rotor stop screw assemblies as the other applicable helicopter models. The EASA AD does not apply to the Model AS350C and AS350D1 helicopters. Interim Action We consider this proposed AD to be an interim action because Eurocopter is E:\FR\FM\14MRP1.SGM 14MRP1 16202 Federal Register / Vol. 78, No. 50 / Thursday, March 14, 2013 / Proposed Rules developing a modification that would address the unsafe condition identified in this AD. After this modification is developed, approved, and available, we might consider additional rulemaking. Costs of Compliance We estimate that this proposed AD would affect 911 helicopters of U.S. Registry and that labor costs average $85 per work-hour. Based on these estimates, we expect the following costs: • Inspecting the locking of the stop screws would take about 0.4 hour for a labor cost of about $34 per helicopter and $30,974 for the U.S. fleet. No parts would be needed. • Adjusting the stop screws, if needed, would require about 0.2 hour for a labor cost of $17. No parts would be needed. • Painting the line would require 0.1 hour for a labor cost of about $9 per helicopter and $8,199 for the U.S. fleet. No parts would be needed. tkelley on DSK3SPTVN1PROD with PROPOSALS 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, 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); VerDate Mar<15>2010 16:02 Mar 13, 2013 Jkt 229001 3. Will not affect intrastate aviation in Alaska to the extent that it justifies making a regulatory distinction; and 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. We prepared an economic evaluation of the estimated costs to comply with this proposed AD and placed it in the AD docket. 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): ■ Eurocopter France: Docket No. FAA–2013– 0240; Directorate Identifier 2011–SW– 060–AD. (a) Applicability This AD applies to the following helicopters, certificated in any category: (1) Model AS350B, AS350BA, AS350B1, AS350B2, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, and AS355F2 helicopters with an autopilot installed; (2) Model AS350B3 helicopters with an autopilot or modification 073252 installed; and (3) Model AS355N and AS355NP helicopters with an autopilot or modification 071908 installed. (b) Unsafe Condition This AD defines the unsafe condition as a loose nut or misaligned tail rotor control stop screw (stop screw). This condition could result in limited yaw authority and subsequent loss of helicopter control. (c) Compliance You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time. (d) Required Actions (1) Within 110 hours time-in-service (TIS), inspect the locking of the stop screws to determine whether the stop screws turn. (i) If any stop screw turns, adjust the stop screw. (ii) Mark a line of red paint on the screwnut assembly as depicted in Section B–B, PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 Figure 1 of Eurocopter Alert Service Bulletin (ASB) No. AS350–05.00.64 or ASB No. AS355–05.00.59, as applicable to your model helicopter. Both ASBs are Revision 0 and dated August 30, 2011. (2) Thereafter, at intervals not to exceed 110 hours TIS, inspect the stop screws to determine whether the paint lines on the screw and the nut are aligned. If the red paint lines are not aligned, remove the paint, adjust the stop screw, and mark a new line of paint on the screw-nut assembly as depicted in Section B–B, Figure 1 of the ASB applicable to your helicopter model. (e) Special Flight Permit A one-time flight permit may be granted, provided that the pilot has full yaw authority before flight. (f) Alternative Methods of Compliance (AMOCs) (1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Matt Fuller, Aviation Safety Engineer, Continued Operational Safety, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone 817–222–5110; email matthew.fuller@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office before operating any aircraft complying with this AD through an AMOC. (g) Additional Information The subject of this AD is addressed in the European Aviation Safety Agency AD No. 2011–0164, dated August 31, 2011. (h) Subject Joint Aircraft Service Component (JASC) Code: 6720, tail rotor control system. Issued in Fort Worth, Texas, on March 6, 2013. Lance T. Gant, Acting Directorate Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 2013–05876 Filed 3–13–13; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 [Docket No. FAA–2013–0074; Airspace Docket No. 13–ASO–3] Proposed Amendment of Class E Airspace; Selmer, TN Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: E:\FR\FM\14MRP1.SGM 14MRP1

Agencies

[Federal Register Volume 78, Number 50 (Thursday, March 14, 2013)]
[Proposed Rules]
[Pages 16200-16202]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-05876]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2013-0240; Directorate Identifier 2011-SW-060-AD]
RIN 2120-AA64


Airworthiness Directives; Eurocopter France Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Eurocopter France (Eurocopter) Model AS350 and AS355 
helicopters. This proposed AD would require inspecting

[[Page 16201]]

the tail rotor control stop screws to determine if they are correctly 
aligned and adjusting the screws if they are misaligned. This proposed 
AD is prompted by the discovery of a loose nut on the tail rotor 
control stop and a misaligned tail rotor control stop screw. The 
proposed actions are intended detect a loose nut or a misaligned stop 
screw, which, if not corrected, could limit yaw authority, and 
consequently, result in a loss of helicopter control.

DATES: We must receive comments on this proposed AD by May 13, 2013.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Docket: Go to https://www.regulations.gov. Follow the online instructions for sending your 
comments electronically.
     Fax: 202-493-2251.
     Mail: Send comments to the U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001.
     Hand Delivery: Deliver to the ``Mail'' address between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

Examing the AD Docket

    You may examine the AD docket on the Internet at https://www.regulations.gov or in person at the Docket Operations Office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this proposed AD, the economic 
evaluation, any comments received, and other information. The street 
address for the Docket Operations Office (telephone 800-647-5527) is in 
the ADDRESSES section. Comments will be available in the AD docket 
shortly after receipt.
    For service information identified in this proposed AD, contact 
American Eurocopter Corporation, 2701 N. Forum Drive, Grand Prairie, TX 
75052; telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-3775; 
or at https://www.eurocopter.com/techpub. You may review the referenced 
service information at the FAA, Office of the Regional Counsel, 
Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 
76137.

FOR FURTHER INFORMATION CONTACT: Matt Fuller, Aviation Safety Engineer, 
Continued Operational Safety, Rotorcraft Directorate, FAA, 2601 Meacham 
Blvd., Fort Worth, Texas 76137; telephone 817-222-5110; email 
matthew.fuller@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to participate in this rulemaking by submitting 
written comments, data, or views. We also invite comments relating to 
the economic, environmental, energy, or federalism impacts that might 
result from adopting the proposals in this document. The most helpful 
comments reference a specific portion of the proposal, explain the 
reason for any recommended change, and include supporting data. To 
ensure the docket does not contain duplicate comments, commenters 
should send only one copy of written comments, or if comments are filed 
electronically, commenters should submit only one time.
    We will file in the docket all comments that we receive, as well as 
a report summarizing each substantive public contact with FAA personnel 
concerning this proposed rulemaking. Before acting on this proposal, we 
will consider all comments we receive on or before the closing date for 
comments. We will consider comments filed after the comment period has 
closed if it is possible to do so without incurring expense or delay. 
We may change this proposal in light of the comments we receive.

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA AD 
No. 2011-0164, dated August 31, 2011, to correct an unsafe condition 
for Eurocopter Model AS350B, AS350BA, AS350BB, AS350B1, AS350B2, 
AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP 
helicopters with either an autopilot or certain modifications 
installed. EASA advises that during take-off with a sling load, the 
pilot of a Model AS350B3 helicopter reached one of the yaw stops before 
its usual position. The inspection that followed revealed that a tail 
rotor control stop nut was loose and that the corresponding tail rotor 
control stop screw was ``out of adjustment.'' EASA states that this 
condition, if not detected and corrected, ``can lead to the loss of 
adjustment of the affected stop and consequently limit yaw authority, 
possibly resulting in loss of control of the helicopter.''

FAA's Determination

    These helicopters have been approved by the aviation authority of 
France and are approved for operation in the United States. Pursuant to 
our bilateral agreement with France, EASA, its technical 
representative, has notified us of the unsafe condition described in 
its AD. We are proposing this AD because we evaluated all known 
relevant information and determined that an unsafe condition is likely 
to exist or develop on other products of the same type design.

Related Service Information

    Eurocopter has issued Alert Service Bulletin (ASB) No. AS350-
05.00.64 for Model AS350B, BA, BB, B1, B2, B3, and D civil helicopters 
and Model AS350L1 military helicopters, and ASB No. AS355-05.00.59 for 
Model AS355E, F, F1, F2, N, and NP civil helicopters, both Revision 0 
and both dated August 30, 2011. The ASBs specify inspecting the locking 
of the stop screws and, if warranted, adjusting the stops, marking the 
screw/nut assembly with a red line of paint, and periodically 
inspecting the paint line's alignment on the screw/nut assembly.

Proposed AD Requirements

    This proposed AD would require inspecting the locking of the stop 
screws within 110 hours time-in-service (TIS). If the stop screw turns, 
the proposed AD would require adjusting the stops. After adjusting the 
stops or if the screw does not turn, this proposed AD would require 
marking a line of red paint on the screw-nut assembly.
    Thereafter, at intervals not to exceed 110 hours TIS, this proposed 
AD would require inspecting the locking of the screws and determining 
whether the red paint line on the screw and nut is aligned. If not 
aligned, this proposed AD would require removing the paint, readjusting 
the stops, and marking a new line of paint.

Differences Between This Proposed AD and the EASA AD

    The EASA AD would require contacting Eurocopter if the red paint 
line on the screw/nut assembly is not aligned after an inspection. This 
proposed AD would not. The EASA AD applies to Eurocopter Model AS350BB 
helicopters. This proposed AD would not because Model AS350BB does not 
have an FAA type certificate. However, the proposed AD would apply to 
Eurocopter Model AS350C and AS350D1 helicopters because they have an 
FAA type certificate and because they have similar tail rotor stop 
screw assemblies as the other applicable helicopter models. The EASA AD 
does not apply to the Model AS350C and AS350D1 helicopters.

Interim Action

    We consider this proposed AD to be an interim action because 
Eurocopter is

[[Page 16202]]

developing a modification that would address the unsafe condition 
identified in this AD. After this modification is developed, approved, 
and available, we might consider additional rulemaking.

Costs of Compliance

    We estimate that this proposed AD would affect 911 helicopters of 
U.S. Registry and that labor costs average $85 per work-hour. Based on 
these estimates, we expect the following costs:
     Inspecting the locking of the stop screws would take about 
0.4 hour for a labor cost of about $34 per helicopter and $30,974 for 
the U.S. fleet. No parts would be needed.
     Adjusting the stop screws, if needed, would require about 
0.2 hour for a labor cost of $17. No parts would be needed.
     Painting the line would require 0.1 hour for a labor cost 
of about $9 per helicopter and $8,199 for the U.S. fleet. No parts 
would be needed.

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, 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; and
    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.
    We prepared an economic evaluation of the estimated costs to comply 
with this proposed AD and placed it in the AD docket.

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

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):

Eurocopter France: Docket No. FAA-2013-0240; Directorate Identifier 
2011-SW-060-AD.

(a) Applicability

    This AD applies to the following helicopters, certificated in 
any category:
    (1) Model AS350B, AS350BA, AS350B1, AS350B2, AS350C, AS350D, 
AS350D1, AS355E, AS355F, AS355F1, and AS355F2 helicopters with an 
autopilot installed;
    (2) Model AS350B3 helicopters with an autopilot or modification 
073252 installed; and
    (3) Model AS355N and AS355NP helicopters with an autopilot or 
modification 071908 installed.

(b) Unsafe Condition

    This AD defines the unsafe condition as a loose nut or 
misaligned tail rotor control stop screw (stop screw). This 
condition could result in limited yaw authority and subsequent loss 
of helicopter control.

(c) Compliance

    You are responsible for performing each action required by this 
AD within the specified compliance time unless it has already been 
accomplished prior to that time.

(d) Required Actions

    (1) Within 110 hours time-in-service (TIS), inspect the locking 
of the stop screws to determine whether the stop screws turn.
    (i) If any stop screw turns, adjust the stop screw.
    (ii) Mark a line of red paint on the screw-nut assembly as 
depicted in Section B-B, Figure 1 of Eurocopter Alert Service 
Bulletin (ASB) No. AS350-05.00.64 or ASB No. AS355-05.00.59, as 
applicable to your model helicopter. Both ASBs are Revision 0 and 
dated August 30, 2011.
    (2) Thereafter, at intervals not to exceed 110 hours TIS, 
inspect the stop screws to determine whether the paint lines on the 
screw and the nut are aligned. If the red paint lines are not 
aligned, remove the paint, adjust the stop screw, and mark a new 
line of paint on the screw-nut assembly as depicted in Section B-B, 
Figure 1 of the ASB applicable to your helicopter model.

(e) Special Flight Permit

    A one-time flight permit may be granted, provided that the pilot 
has full yaw authority before flight.

(f) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Safety Management Group, FAA, may approve AMOCs 
for this AD. Send your proposal to: Matt Fuller, Aviation Safety 
Engineer, Continued Operational Safety, Rotorcraft Directorate, FAA, 
2601 Meacham Blvd., Fort Worth, Texas 76137; telephone 817-222-5110; 
email matthew.fuller@faa.gov.
    (2) For operations conducted under a 14 CFR part 119 operating 
certificate or under 14 CFR part 91, subpart K, we suggest that you 
notify your principal inspector, or lacking a principal inspector, 
the manager of the local flight standards district office or 
certificate holding district office before operating any aircraft 
complying with this AD through an AMOC.

(g) Additional Information

    The subject of this AD is addressed in the European Aviation 
Safety Agency AD No. 2011-0164, dated August 31, 2011.

(h) Subject

    Joint Aircraft Service Component (JASC) Code: 6720, tail rotor 
control system.


    Issued in Fort Worth, Texas, on March 6, 2013.
Lance T. Gant,
Acting Directorate Manager, Rotorcraft Directorate, Aircraft 
Certification Service.
[FR Doc. 2013-05876 Filed 3-13-13; 8:45 am]
BILLING CODE 4910-13-P
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