80 FR 9591 - Airworthiness Directives; CFM International S.A. Turbofan Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 80, Issue 36 (February 24, 2015)
Federal Aviation Administration
Federal Register Volume 80, Issue 36 (February 24, 2015)
| Page Range | 9591-9594 | |
| FR Document | 2015-03582 |
[Federal Register Volume 80, Number 36 (Tuesday, February 24, 2015)] [Rules and Regulations] [Pages 9591-9594] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2015-03582] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2014-0521; Directorate Identifier 2014-NE-11-AD; Amendment 39-18104; AD 2015-04-02] RIN 2120-AA64 Airworthiness Directives; CFM International S.A. Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are adopting a new airworthiness directive (AD) for all CFM International S.A. (CFM) CFM56-7B series turbofan engines. This AD was prompted by a dual engine thrust instability event that resulted in the overspeed and in-flight shutdown (IFSD) of one engine. This AD requires modification of the engine by removing [[Page 9592]] full authority digital engine control (FADEC) software, version 7.B.V4 or earlier, installed in the electronic engine controls (EECs) on CFM56-7B engines. We are issuing this AD to prevent a thrust instability event, which could lead to overspeed and IFSD of one or more engines, loss of thrust control, damage to the engine, and damage to the airplane. DATES: This AD is effective March 31, 2015. ADDRESSES: For service information identified in this AD, contact CFM International Inc., Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; phone: 877-432-3272; fax: 877-432-3329; email: geae.aoc@ge.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. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2014-0521. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2014- 0521; 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 AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (phone: 800-647- 5527) is Document Management Facility, U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Kyle Gustafson, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7183; fax: 781-238-7199; email: kyle.gustafson@faa.gov. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all CFM CFM56-7B series turbofan engines. The NPRM published in the Federal Register on October 2, 2014 (79 FR 59467). The NPRM was prompted by reports of dual-engine thrust instability events on CFM56-7B turbofan engines that resulted in overspeed and IFSD of one engine. These resulted from water-borne contamination of the fuel being supplied to the engine which had an adverse effect on the response of the fuel metering valve (FMV) in the hydro-mechanical unit (HMU). CFM has modified its FADEC software to compensate for compromised fuel within the HMU and improved the response of the FMV, thereby mitigating these thrust instability events. The NPRM proposed to require modification of the engine by removing FADEC software, version 7.B.V4 or earlier, installed in the EECs on CFM56-7B engines. We are issuing this AD to prevent a thrust instability event, which could lead to overspeed and IFSD of one or more engines, loss of thrust control, damage to the engine, and damage to the airplane. Comments We gave the public the opportunity to participate in developing this AD. The following presents the comments received on the NPRM (79 FR 59467, October 2, 2014) and the FAA's response to each comment. Request To Change Emphasis From Software Removal to Software Installation Delta Air Lines (DAL) and American Air Lines (AAL) requested that we change wording in the AD to emphasize installation of an eligible software standard rather than removal of the ineligible software standard. They suggested that we add this sentence to compliance paragraph (e): ``Within 6 months of the effective date of this AD, modify the engine by installing FADEC software version 7.B.W, released by CFM Service Bulletins 73-0203 and 73-0204, or later approved software versions.'' DAL and AAL state that the Boeing 737NG Aircraft Maintenance Manual does not contain a removal step but rather guides how to overwrite previous software with eligible software. We disagree. The purpose of this AD is to require removal of software standard 7.B.V4, or earlier, to correct the unsafe condition. Overwriting a previously installed software standard with a software standard eligible for installation is an acceptable method for removing an affected software standard. We did not change this AD. Request To Require Use of Software EEC Software Standard 7.B.W or Later DAL and AAL requested that we revise paragraph (h)(2) of FAA AD 2012-05-02 (77 FR 20511, April 5, 2012) (``AD 2012-05-02'') to state that EEC software standard 7.B.W or later is required. AD 2012-05-02 requires inspection and modification to the Boeing 737NG thrust reversers, and also requires, in paragraph (h)(2), installation of software standard 7.B.R3 on affected engines. Since AD 2012-05-02 was issued, new versions of software have been released, requiring alternative methods of compliance (AMOCs) to allow installation of versions later than software standard 7.B.R3. The requested change to AD 2012-05-02 would bring AD 2012-05-02 and this AD into agreement on the required airplane configuration. We disagree. The current version of the software standard, 7.B.W, also addresses the thrust reverser unsafe condition and is approved as an AMOC for AD 2012-05-02. We did not change this AD. Request To Change Description of the Unsafe Condition The Boeing Company (Boeing) and CFM requested that we change the wording of the unsafe condition to ``We are proposing this AD to mitigate characteristics of a thrust instability event; without mitigation, thrust instability events could potentially lead to engine overspeed and IFSD of one or more engines, loss of thrust control, and damage to the airplane.'' The commenters state that the EEC cannot prevent the occurrence of the events, but it can effectively mitigate the characteristics of the events. We disagree. While the work to prevent the root cause of fuel contamination continues, the purpose of the FADEC software and this AD is to prevent the events described in the unsafe condition. We did not change this AD. Request To Change Wording in the Description Paragraph CFM and Boeing requested that we change the wording of two sentences in the Description paragraph to ``These resulted from water- borne contamination of the fuel being supplied to the engine which had an adverse effect on the response of the FMV in the HMU. CFM has modified its FADEC software to compensate for compromised fuel within the HMU and improve the response of the fuel control valve, thereby mitigating these thrust instability events.'' We agree. We changed the wording of the two sentences in the Description paragraph to be more correct and accurate. [[Page 9593]] Request To Clarify a Sentence in the Relevant Service Information Paragraph Boeing requested, for clarity, that in the Relevant Service Information paragraph of the preamble we add the words ``post 7.B.V4'' to describe the FADEC software. Boeing requested that the changed sentence read: ``The SBs describe the procedures for the introduction of new FADEC software, post 7.B.V4, for the EECs.'' We disagree. The information in this AD provides the necessary information for compliance. No additional clarification is required. Furthermore, the Relevant Service Information paragraph, which appeared in the preamble of the NPRM (79 FR 59467, October 2, 2014), does not appear in this AD. We did not change this AD. Request That We Correct Our References to the FADEC Software Standard CFM requested that we change all references to the software standard throughout this AD from ``7BV4'' to ``7.B.V4'' because that is the correct way to reference the software standard. We agree. We changed all references to the software standard throughout this AD to the correct nomenclature. Request To Add a Table Specifying the Software Versions To Remove Boeing requested that for clarity we include in this AD a table that would show the software versions, by part number, that should be removed as a result of this AD. We disagree. The information in this AD provides the necessary information for compliance. No additional clarification is required. We did not change this AD. Additional Changes In our review of the NPRM, we found that we failed to include the prohibition against operating any aircraft configured with one engine with FADEC software version 7.B.V4 or earlier, installed, and the other engine with an eligible FADEC software version installed. This prohibition is in SB CFM Service Bulletin (SB) No. CFM56-7B S/B 73- 0203, dated June 9, 2014 and CFM No. SB CFM56-7B S/B 73-0204, dated June 9, 2014. We added the prohibition to this AD. Agreement With the Proposed AD One anonymous commenter expressed agreement with this AD. Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this AD with the changes described previously. We have determined that these minor changes:[Agr]re consistent with the intent that was proposed in the NPRM (79 FR 59467, October 2, 2014) for correcting the unsafe condition; and Do not add any additional burden upon the public than was already proposed in the NPRM (79 FR 59467, October 2, 2014). We also determined that these changes will not increase the economic burden on any operator or increase the scope of this AD. Costs of Compliance We estimate that this AD would affect about 2,921 engines installed on airplanes of U.S. registry. We also estimate that it would take about 1 hour per engine to comply with this AD. The average labor rate is $85 per hour. Parts cost is zero. Based on these figures, we estimate the cost of this AD on U.S. operators to be $248,285. 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 This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: (1) Is not a ``significant regulatory action'' under Executive Order 12866, (2) Is not a ``significant rule'' under 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. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 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): 2015-04-02 CFM International S.A.: Amendment 39-18104; Docket No. FAA-2014-0521; Directorate Identifier 2014-NE-11-AD. (a) Effective Date This AD is effective March 31, 2015. (b) Affected ADs None. (c) Applicability This AD applies to all CFM International S.A. (CFM) CFM56-7B series turbofan engines. (d) Unsafe Condition This AD was prompted by a dual engine thrust instability event that resulted in the overspeed and in-flight shutdown (IFSD) of one engine. We are issuing this AD to prevent a thrust instability event, which could lead to overspeed and IFSD of one or more engines, loss of thrust control, damage to the engine, and damage to the airplane. (e) Compliance (1) Comply with this AD within the compliance times specified, unless already done. (2) Within 6 months after the effective date of this AD, modify the engine by removing full authority digital engine control (FADEC) software, version 7.B.V4 or earlier, installed in the electronic engine control (EEC). (3) Do not return to service any aircraft configured with one engine with FADEC software, version 7.B.V4 or earlier, installed, and the other engine with an eligible FADEC software version, installed. [[Page 9594]] (f) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs to this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: ANE-AD-AMOC@faa.gov. (g) Related Information (1) For more information about this AD, contact Kyle Gustafson, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7183; fax: 781-238-7199; email: kyle.gustafson@faa.gov. (2) CFM Service Bulletin (SB) No. CFM56-7B S/B 73-0203, dated June 9, 2014, and CFM No. SB CFM56-7B S/B 73-0204, dated June 9, 2014, which are not incorporated by reference in this AD, can be obtained from CFM using the contact information in paragraph (g)(3) of this AD. (3) For service information identified in this AD, contact CFM International Inc., Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; phone: 877-432-3272; fax: 877-432- 3329; email: geae.aoc@ge.com. (4) 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. (h) Material Incorporated by Reference None. Issued in Burlington, Massachusetts, on February 10, 2015. Ann C. Mollica, Acting Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2015-03582 Filed 2-23-15; 8:45 am] BILLING CODE 4910-13-P
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Rules and Regulations Federal Register
Vol. 80, No. 36
Tuesday, February 24, 2015
This section of the FEDERAL REGISTER SUPPLEMENTARY INFORMATION: On June 3, standards. The Attorney General’s
contains regulatory documents having general 2014, DOE published a final rule for responsibility for responding to requests from
applicability and legal effect, most of which walk-in coolers and walk-in freezers in other departments about the effect of a
are keyed to and codified in the Code of program on competition has been delegated
which DOE amended the energy
Federal Regulations, which is published under to the Assistant Attorney General for the
conservation standards for certain walk- Antitrust Division in 28 CFR § 0.40(g).
50 titles pursuant to 44 U.S.C. 1510.
in cooler and walk-in freezer In conducting its analysis the Antitrust
The Code of Federal Regulations is sold by components. Those standards were Division examines whether a proposed
the Superintendent of Documents. Prices of determined by DOE to be standard may lessen competition, for
new books are listed in the first FEDERAL technologically feasible and example, by substantially limiting consumer
REGISTER issue of each week. economically justified and would result choice, by placing certain manufacturers at
in the significant conservation of an unjustified competitive disadvantage, or
energy. The Energy Conservation and by inducing avoidable inefficiencies in
DEPARTMENT OF ENERGY production or distribution of particular
Policy Act of 1975 (42 U.S.C.6291, et
products. A lessening of competition could
seq; ‘‘EPCA’’), Public Law 94–163, result in higher prices to manufacturers and
10 CFR Part 431 requires that the Attorney General make consumers, and perhaps thwart the intent of
a determination and analysis of the the revised standards by inducing
[Docket Number EERE–2008–BT–STD–
0015] impact, if any, of any lessening of substitution to less efficient products.
competition likely to result from a We have reviewed the proposed standards
RIN 1904–AB86 proposed standard, within 60 days of contained in the Notice of Proposed
publication. (42 U.S.C. 6295(o)(2)(B)(ii)) Rulemaking (78 FR 55781, September 11,
Energy Conservation Program: Energy EPCA also requires that DOE publish 2013) (NOPR). We have also reviewed
supplementary information submitted to the
Conservation Standards for Walk-in the determination and analysis in the
Attorney General by the Department of
Coolers and Freezers Federal Register. Id. Energy, including a transcript of the public
DOE received the determination in meeting held on the proposed standards on
AGENCY: Office of Energy Efficiency and response to the September 11, 2013 October 9, 2013. Based on this review, our
Renewable Energy, Department of NOPR from the Attorney General and conclusion is that the proposed energy
Energy. the U.S. Department of Justice on conservation standards for walk-in coolers
ACTION: Publication of determination. November 13, 2013. Accordingly, DOE and freezers are unlikely to have a significant
is publishing that determination in adverse impact on competition.
SUMMARY: The Energy Policy and today’s notice. Sincerely,
Conservation Act of 1975 (EPCA), as William J. Baer
amended, prescribes that the U.S. Issued in Washington, DC, on February 12,
2015. Enclosure
Department of Justice (DOJ) make a [FR Doc. 2015–03557 Filed 2–23–15; 8:45 am]
Kathleen B. Hogan,
determination on the impact, if any, on BILLING CODE 6450–01–P
the lessening of competition likely to Deputy Assistant Secretary for Energy
Efficiency, Energy Efficiency and Renewable
result from a U.S. Department of Energy
Energy.
(DOE) proposed rule for energy
U.S. DEPARTMENT OF JUSTICE DEPARTMENT OF TRANSPORTATION
conservation standards and that DOE
Antitrust Division
publish the determination in the WILLIAM J. BAER Federal Aviation Administration
Federal Register. DOE published its Assistant Attorney General
final rule for energy conservation Main Justice Building 14 CFR Part 39
standards for walk-in coolers and 950 Pennsylvania Avenue, N.W.
freezers on June 3, 2014, and is today Washington, D.C. 20530–0001 [Docket No. FAA–2014–0521; Directorate
publishing DOJ’s determination on such (202) 514–2401 I (202) 616–2645 (Fax) Identifier 2014–NE–11–AD; Amendment 39–
November 12, 2013 18104; AD 2015–04–02]
proposed rule.
DATES: February 24, 2015. Eric J. Fygi RIN 2120–AA64
Deputy General Counsel Department of
FOR FURTHER INFORMATION CONTACT: Mr. Energy Washington, D.C. 20585 Airworthiness Directives; CFM
John Cymbalsky, U.S. Department of Re: Walk In Coolers & Freezers Energy International S.A. Turbofan Engines
Energy, Office of Energy Efficiency and Conservation Standards Dear Deputy General
Renewable Energy, Building Counsel Fygi: AGENCY: Federal Aviation
Technologies Program, EE–5B, 1000 I am responding to your September 10, Administration (FAA), DOT.
Independence Avenue SW., 2013 letter seeking the views of the Attorney ACTION: Final rule.
Washington, DC 20585–0121. General about the potential impact on
Telephone: (202) 287–1692. Email: competition of proposed energy conservation SUMMARY: We are adopting a new
walk-in_coolers_and_walk-in_freezers@ standards for walk-in coolers and airworthiness directive (AD) for all CFM
EE.Doe.Gov. refrigerators. Your request was submitted International S.A. (CFM) CFM56–7B
tkelley on DSK3SPTVN1PROD with RULES
Mr. Michael Kido, U.S. Department of under Section 325(o)(2)(B)(i)(V) of the Energy series turbofan engines. This AD was
Policy and Conservation Act, as amended
Energy, Office of the General Counsel, (ECPA), 42 U.S.C. 6295(o)(2)(B)(i)(V), which
prompted by a dual engine thrust
GC–71, 1000 Independence Avenue requires the Attorney General to make a instability event that resulted in the
SW., Washington, DC, 20585–0121. determination of the impact of any lessening overspeed and in-flight shutdown
Telephone: (202) 586–8145. Email: of competition that is likely to result from the (IFSD) of one engine. This AD requires
Michael.Kido@hq.doe.gov. imposition of proposed energy conservation modification of the engine by removing
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![Federal Register / Vol. 80, No. 36 / Tuesday, February 24, 2015 / Rules and Regulations 9593
Request To Clarify a Sentence in the determined that air safety and the (2) Is not a ‘‘significant rule’’ under
Relevant Service Information public interest require adopting this AD DOT Regulatory Policies and Procedures
Paragraph with the changes described previously. (44 FR 11034, February 26, 1979),
Boeing requested, for clarity, that in We have determined that these minor (3) Will not affect intrastate aviation
the Relevant Service Information changes: in Alaska to the extent that it justifies
paragraph of the preamble we add the • Are consistent with the intent that making a regulatory distinction, and
was proposed in the NPRM (79 FR (4) Will not have a significant
words ‘‘post 7.B.V4’’ to describe the
59467, October 2, 2014) for correcting economic impact, positive or negative,
FADEC software. Boeing requested that
the unsafe condition; and on a substantial number of small entities
the changed sentence read: ‘‘The SBs under the criteria of the Regulatory
describe the procedures for the • Do not add any additional burden
upon the public than was already Flexibility Act.
introduction of new FADEC software,
post 7.B.V4, for the EECs.’’ proposed in the NPRM (79 FR 59467, List of Subjects in 14 CFR Part 39
We disagree. The information in this October 2, 2014). Air transportation, Aircraft, Aviation
AD provides the necessary information We also determined that these safety, Incorporation by reference,
for compliance. No additional changes will not increase the economic Safety.
clarification is required. Furthermore, burden on any operator or increase the
the Relevant Service Information scope of this AD. Adoption of the Amendment
paragraph, which appeared in the Costs of Compliance Accordingly, under the authority
preamble of the NPRM (79 FR 59467, delegated to me by the Administrator,
October 2, 2014), does not appear in this We estimate that this AD would affect the FAA amends 14 CFR part 39 as
AD. We did not change this AD. about 2,921 engines installed on follows:
airplanes of U.S. registry. We also
Request That We Correct Our estimate that it would take about 1 hour PART 39—AIRWORTHINESS
References to the FADEC Software per engine to comply with this AD. The DIRECTIVES
Standard average labor rate is $85 per hour. Parts
CFM requested that we change all cost is zero. Based on these figures, we ■ 1. The authority citation for part 39
references to the software standard estimate the cost of this AD on U.S. continues to read as follows:
throughout this AD from ‘‘7BV4’’ to operators to be $248,285. Authority: 49 U.S.C. 106(g), 40113, 44701.
‘‘7.B.V4’’ because that is the correct way
to reference the software standard. Authority for This Rulemaking § 39.13 [Amended]
We agree. We changed all references Title 49 of the United States Code ■ 2. The FAA amends § 39.13 by adding
to the software standard throughout this specifies the FAA’s authority to issue the following new airworthiness
AD to the correct nomenclature. rules on aviation safety. Subtitle I, directive (AD):
Request To Add a Table Specifying the section 106, describes the authority of 2015–04–02 CFM International S.A.:
Software Versions To Remove the FAA Administrator. Subtitle VII: Amendment 39–18104; Docket No.
Aviation Programs, describes in more FAA–2014–0521; Directorate Identifier
Boeing requested that for clarity we detail the scope of the Agency’s 2014–NE–11–AD.
include in this AD a table that would authority. (a) Effective Date
show the software versions, by part We are issuing this rulemaking under
number, that should be removed as a This AD is effective March 31, 2015.
the authority described in Subtitle VII,
result of this AD. Part A, Subpart III, Section 44701: (b) Affected ADs
We disagree. The information in this ‘‘General requirements.’’ Under that None.
AD provides the necessary information section, Congress charges the FAA with
for compliance. No additional (c) Applicability
promoting safe flight of civil aircraft in
clarification is required. We did not This AD applies to all CFM International
air commerce by prescribing regulations S.A. (CFM) CFM56–7B series turbofan
change this AD. for practices, methods, and procedures engines.
Additional Changes the Administrator finds necessary for
(d) Unsafe Condition
In our review of the NPRM, we found safety in air commerce. This regulation
is within the scope of that authority This AD was prompted by a dual engine
that we failed to include the prohibition thrust instability event that resulted in the
against operating any aircraft configured because it addresses an unsafe condition
overspeed and in-flight shutdown (IFSD) of
with one engine with FADEC software that is likely to exist or develop on one engine. We are issuing this AD to prevent
version 7.B.V4 or earlier, installed, and products identified in this rulemaking a thrust instability event, which could lead
the other engine with an eligible FADEC action. to overspeed and IFSD of one or more
software version installed. This engines, loss of thrust control, damage to the
Regulatory Findings engine, and damage to the airplane.
prohibition is in SB CFM Service
Bulletin (SB) No. CFM56–7B S/B 73– This AD will not have federalism (e) Compliance
0203, dated June 9, 2014 and CFM No. implications under Executive Order
(1) Comply with this AD within the
SB CFM56–7B S/B 73–0204, dated June 13132. This AD will not have a compliance times specified, unless already
9, 2014. We added the prohibition to substantial direct effect on the States, on done.
this AD. the relationship between the national (2) Within 6 months after the effective date
government and the States, or on the of this AD, modify the engine by removing
Agreement With the Proposed AD distribution of power and full authority digital engine control (FADEC)
tkelley on DSK3SPTVN1PROD with RULES
responsibilities among the various software, version 7.B.V4 or earlier, installed
One anonymous commenter in the electronic engine control (EEC).
expressed agreement with this AD. levels of government.
(3) Do not return to service any aircraft
For the reasons discussed above, I configured with one engine with FADEC
Conclusion certify that this AD: software, version 7.B.V4 or earlier, installed,
We reviewed the relevant data, (1) Is not a ‘‘significant regulatory and the other engine with an eligible FADEC
considered the comments received, and action’’ under Executive Order 12866, software version, installed.
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(f) Alternative Methods of Compliance placard in full view of the pilot to limit 76137; telephone (817) 222–5927; email
(AMOCs) flight to visual flight rules (VFR) only 7-AVS-ASW-170@faa.gov.
The Manager, Engine Certification Office, and prohibit night operations. This AD SUPPLEMENTARY INFORMATION:
FAA, may approve AMOCs to this AD. Use is prompted by failures of certain
the procedures found in 14 CFR 39.19 to inverters, most of which resulted in Comments Invited
make your request. You may email your smoke in the cockpit. The actions This AD is a final rule that involves
request to: ANE-AD-AMOC@faa.gov. specified by this AD are intended to requirements affecting flight safety, and
(g) Related Information restrict flight to VFR only and prohibit we did not provide you with notice and
(1) For more information about this AD, night operations to allow safe operation an opportunity to provide your
contact Kyle Gustafson, Aerospace Engineer, in the event of failure of an affected comments prior to it becoming effective.
Engine Certification Office, FAA, Engine & inverter. This failure would increase However, we invite you to participate in
Propeller Directorate, 12 New England pilot workload during instrument flight this rulemaking by submitting written
Executive Park, Burlington, MA 01803; rules (IFR) and could result in loss of comments, data, or views. We also
phone: 781–238–7183; fax: 781–238–7199; certain pilot information displays and invite comments relating to the
email: kyle.gustafson@faa.gov. subsequent loss of control of the economic, environmental, energy, or
(2) CFM Service Bulletin (SB) No. CFM56– federalism impacts that resulted from
7B S/B 73–0203, dated June 9, 2014, and
helicopter.
adopting this AD. The most helpful
CFM No. SB CFM56–7B S/B 73–0204, dated DATES: This AD becomes effective comments reference a specific portion of
June 9, 2014, which are not incorporated by March 11, 2015.
reference in this AD, can be obtained from the AD, explain the reason for any
We must receive comments on this
CFM using the contact information in recommended change, and include
AD by April 27, 2015.
paragraph (g)(3) of this AD. supporting data. To ensure the docket
(3) For service information identified in ADDRESSES: You may send comments by does not contain duplicate comments,
this AD, contact CFM International Inc., any of the following methods: commenters should send only one copy
Aviation Operations Center, 1 Neumann • Federal eRulemaking Docket: Go to of written comments, or if comments are
Way, M/D Room 285, Cincinnati, OH 45125; http://www.regulations.gov. Follow the filed electronically, commenters should
phone: 877–432–3272; fax: 877–432–3329; online instructions for sending your submit them only one time. We will file
email: geae.aoc@ge.com. comments electronically. in the docket all comments that we
(4) You may view this service information • Fax: 202–493–2251. receive, as well as a report summarizing
at the FAA, Engine & Propeller Directorate, • Mail: Send comments to the U.S. each substantive public contact with
12 New England Executive Park, Burlington, Department of Transportation, Docket
MA. For information on the availability of FAA personnel concerning this
Operations, M–30, West Building rulemaking during the comment period.
this material at the FAA, call (781) 238–7125.
Ground Floor, Room W12–140, 1200 We will consider all the comments we
(h) Material Incorporated by Reference New Jersey Avenue SE., Washington, receive and may conduct additional
None. DC 20590–0001. rulemaking based on those comments.
Issued in Burlington, Massachusetts, on
• Hand Delivery: Deliver to the
‘‘Mail’’ address between 9 a.m. and 5 Discussion
February 10, 2015.
Ann C. Mollica,
p.m., Monday through Friday, except We are adopting a new AD for Bell
Federal holidays. Model 412 and 412EP helicopters with
Acting Directorate Manager, Engine &
Propeller Directorate, Aircraft Certification Examining the AD Docket an inverter part number (P/N) 412–375–
Service. 079–101 or P/N 412–375–079–103 with
You may examine the AD docket on a serial number 29145 or larger. This AD
[FR Doc. 2015–03582 Filed 2–23–15; 8:45 am]
the Internet at http:// limits operations to VFR and prohibits
BILLING CODE 4910–13–P
www.regulations.gov or in person at the night operations by adding a restriction
Docket Operations Office between 9 to the RFM and installing a placard in
a.m. and 5 p.m., Monday through full view of the pilots. This AD is
DEPARTMENT OF TRANSPORTATION
Friday, except Federal holidays. The AD prompted by at least 30 failures of
Federal Aviation Administration docket contains this AD, the economic certain inverters; most have resulted in
evaluation, any comments received, and smoke in the cockpit. The root cause of
14 CFR Part 39 other information. The street address for the failures is still under investigation
the Docket Operations Office (telephone by Bell and Avionics Instruments LLC,
[Docket No. FAA–2015–0365; Directorate 800–647–5527) is in the ADDRESSES the manufacturer of the inverters. The
Identifier 2014–SW–049–AD; Amendment section. Comments will be available in
39–18106; AD 2015–04–04] consequence of one failed inverter has
the AD docket shortly after receipt. the potential of allowing smoke in the
RIN 2120–AA64 For service information identified in cockpit, making it difficult to find a safe
this AD, contact Bell Helicopter landing site at night or in instrument
Airworthiness Directives; Bell Textron, Inc., P.O. Box 482, Fort Worth, meteorological conditions. If both
Helicopter Textron Inc. Helicopters TX 76101; telephone (817) 280–3391; inverters fail, the pilot will lose primary
AGENCY: Federal Aviation fax (817) 280–6466; or at http:// flight and navigation displays,
Administration (FAA), DOT. www.bellcustomer.com/files/. You may alternating current powered engine and
review the referenced service transmission indicators, and autopilot.
ACTION: Final rule; request for
information at the FAA, Office of the The RFM emergency procedure for dual
comments.
Regional Counsel, Southwest Region, inverter failure is to land as soon as
SUMMARY: We are adopting a new 2601 Meacham Blvd., Room 663, Fort practicable or fly VFR. The RFM
tkelley on DSK3SPTVN1PROD with RULES
airworthiness directive (AD) for Bell Worth, Texas 76137. emergency procedure for smoke in the
Helicopter Textron Inc. (Bell) Model 412 FOR FURTHER INFORMATION CONTACT: Ife cabin is to land as soon as possible.
and 412EP helicopters with certain Ogunleye, Aviation Safety Engineer, Until a new design is available,
static inverters (inverters) installed. This Rotorcraft Certification Office, restricting flight operations to VFR and
AD requires revising the Rotorcraft Rotorcraft Directorate, FAA, 2601 daytime increases the likelihood of a
Flight Manual (RFM) and installing a Meacham Blvd., Fort Worth, Texas prompt safe landing.
VerDate Sep<11>2014 16:15 Feb 23, 2015 Jkt 235001 PO 00000 Frm 00004 Fmt 4700 Sfmt 4700 E:\FR\FM\24FER1.SGM 24FER1](https://thefederalregister.org/doc/80_FR_9627/page/4.svg)
Document Created: 2015-12-18 13:22:51
Document Modified: 2015-12-18 13:22:51
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Rules and Regulations | |
| Action | Final rule. | |
| Dates | This AD is effective March 31, 2015. | |
| Contact | Kyle Gustafson, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7183; fax: 781-238-7199; email: [email protected] | |
| FR Citation | 80 FR 9591 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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