83 FR 50818 - Airworthiness Directives; CFM International S.A. Turbofan Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 196 (October 10, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 196 (October 10, 2018)
| Page Range | 50818-50820 | |
| FR Document | 2018-21508 |
[Federal Register Volume 83, Number 196 (Wednesday, October 10, 2018)] [Rules and Regulations] [Pages 50818-50820] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-21508] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0855; Product Identifier 2018-NE-31-AD; Amendment 39-19416; AD 2018-19-16] RIN 2120-AA64 Airworthiness Directives; CFM International S.A. Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. ----------------------------------------------------------------------- SUMMARY: We are adopting a new airworthiness directive (AD) for all CFM International S.A. (CFM) LEAP-1A23, -1A24, -1A24E1, -1A26, -1A26E1, - 1A26CJ, -1A29, -1A29CJ, -1A30, -1A32, -1A33, -1A33B2, and -1A35A turbofan engines with certain full authority digital engine control (FADEC) and prognostic health monitoring (PHM) software installed. This AD requires removing certain FADEC and PHM software and installing versions eligible for installation. This AD was prompted by aborted takeoffs after engines did not advance to the desired takeoff fan speed due to icing in the pressure sensor line. We are issuing this AD to address the unsafe condition on these products. DATES: This AD is effective October 25, 2018. We must receive comments on this AD by November 26, 2018. [[Page 50819]] 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 http://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: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this final rule, 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: aviation.fleetsupport@ge.com. You may view this service information at the FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781-238-7759. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0855. 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-2018- 0855; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations (phone: 800-647-5527) is listed above. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Christopher McGuire, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7120; fax: 781-238-7199; email: chris.mcguire@faa.gov. SUPPLEMENTARY INFORMATION: Discussion We received reports of six aborted takeoffs that occurred after engines did not advance to the desired takeoff fan speed. The aborted takeoffs happened on the first takeoff of the day after the airplane was exposed to sub-freezing temperatures for more than six hours. After further investigation, the operator found water and ice in the pressure sensor lines, which prevented the pressure sensor from accurately measuring the pressure. As a result, CFM improved the FADEC and PHM software to detect and accommodate pressure sensor line freezing. This condition, if not addressed, could result in icing in the pressure sensor lines and inaccurate pressure sensor readings, failure of one or more engines, loss of thrust control, and loss of the airplane. We are issuing this AD to address the unsafe condition on these products. Related Service Information We reviewed CFM Service Bulletin (SB) LEAP-1A-73-00-0027-01A-930A- D, Issue 001, dated July 30, 2018. The SB introduces new FADEC and PHM software and describes procedures for replacing the software. FAA's Determination We are issuing 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. AD Requirements This AD requires removing certain FADEC and PHM software and installing software that is eligible for installation. Differences Between the AD and the Service Information CFM SB LEAP-1A-73-00-0027-01A-930A-D, Issue 001, dated July 30, 2018, recommends that you install the new FADEC and PHM software. This AD requires that you install the new FADEC and PHM software, and prohibits the use of earlier FADEC and PHM software versions. Interim Action We consider this AD interim action. CFM is developing a modification that will address the unsafe condition identified in this AD. Once this modification is developed, approved, and available, we might consider additional rulemaking. FAA's Justification and Determination of the Effective Date An unsafe condition exists that requires the immediate adoption of this AD without providing an opportunity for public comments prior to adoption. The FAA has found that the risk to the flying public justifies waiving notice and comment prior to adoption of this rule because the compliance time for the required action is shorter than the time necessary for the public to comment and for us to publish the final rule. The software must be removed and replaced within 90 days to ensure that icing does not develop in the pressure sensor lines on the affected engines. Therefore, we find good cause that notice and opportunity for prior public comment are impracticable. In addition, for the reasons stated above, we find that good cause exists for making this amendment effective in less than 30 days. Comments Invited This AD is a final rule that involves requirements affecting flight safety and was not preceded by notice and an opportunity for public comment. However, we invite you to send any written data, views, or arguments about this final rule. Send your comments to an address listed under the ADDRESSES section. Include the docket number FAA-2018- 0855 and Product Identifier 2018-NE-31-AD at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this final rule. We will consider all comments received by the closing date and may amend this final rule because of those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this final rule. Costs of Compliance We estimate that this AD affects 82 engines installed on airplanes of U.S. registry. We estimate the following costs to comply with this AD: [[Page 50820]] Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost per Cost on U.S. Action Labor cost Parts cost product operators ---------------------------------------------------------------------------------------------------------------- Software installation................. 1 work-hour x $85 per $0 $85 $6,970 hour = $85. ---------------------------------------------------------------------------------------------------------------- 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. This AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to engines, propellers, and associated appliances to the Manager, Engine and Propeller Standards Branch, Policy and Innovation Division. 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, 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): 2018-19-16 CFM International S.A.: Amendment 39-19416; Docket No. FAA-2018-0855; Product Identifier 2018-NE-31-AD. (a) Effective Date This AD is effective October 25, 2018. (b) Affected ADs None. (c) Applicability This AD applies to all CFM LEAP-1A23, -1A24, -1A24E1, -1A26, - 1A26E1, -1A26CJ, -1A29, -1A29CJ, -1A30, -1A32, -1A33, -1A33B2, and - 1A35A turbofan engines with full authority digital engine control (FADEC) software, part number (P/N) 2590M00P07, version L1A0510, or earlier, installed; and prognostic health monitoring (PHM) software, P/N 2784M64P01, version PL1A0510, or earlier, installed. (d) Subject Joint Aircraft System Component (JASC) Code 7600, Engine Controls. (e) Unsafe Condition This AD was prompted by aborted takeoffs after engines did not advance to the desired takeoff fan speed due to icing in the pressure sensor line. We are issuing this AD to prevent icing in the pressure sensor lines and inaccurate pressure sensor readings. The unsafe condition, if not addressed, could result failure of one or more engines, loss of thrust control, and loss of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Within 90 days after the effective date of this AD, remove FADEC software, P/N 2590M00P07, version L1A0510, or earlier; and PHM software, P/N 2784M64P01, version PL1A0510, or earlier, from the engine. (2) Before further flight after the removal of the FADEC and PHM software required by paragraph (g)(1), install FADEC and PHM software that is eligible for installation. (h) Installation Prohibition After 90 days from the effective date of this AD, do not operate any engine with FADEC software, P/N 2590M00P07, version L1A0510, or earlier, installed; and PHM software, P/N 2784M64P01, version PL1A0510, or earlier, installed. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, ECO Branch, 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 certification office, send it to the attention of the person identified in paragraph (j) of this AD. You may email your request to: ANE-AD-AMOC@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. (j) Related Information For more information about this AD, contact Christopher McGuire, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7120; fax: 781-238-7199; email: chris.mcguire@faa.gov. (k) Material Incorporated by Reference None. Issued in Burlington, Massachusetts, on September 27, 2018. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018-21508 Filed 10-9-18; 8:45 am] BILLING CODE 4910-13-P
![50818 Federal Register / Vol. 83, No. 196 / Wednesday, October 10, 2018 / Rules and Regulations
List of Subjects in 14 CFR Part 39 attachment assemblies on the aisle side (ii) Reserved.
spreader, and torque check the safety belt (3) For service information identified in
Air transportation, Aircraft, Aviation attachment assemblies on the central and this AD, contact Geven Technical Assistance
safety, Incorporation by reference, fuselage side spreaders to 71 in-lbs. (8 nm). Department, Via Boscofangone, Zona
Safety. (2) Within six months after the effective Industriale Nola-Marigliano, 80035 Nola
date of this AD, in accordance with Geven SB (NA), Italy; phone: +39 081 31 21 396; fax:
Adoption of the Amendment No. D103–25–004, Revision 4, dated March +39 081 31 21 321; email:
Accordingly, under the authority 15, 2016, for all Geven Type D1–02 (also Technical.assistance@geven.com.
delegated to me by the Administrator, known as ‘‘Lightweight aft facing seats’’) in- (4) You may view this service information
the FAA amends 14 CFR part 39 as arm table, standard, and last row seats, P/N at FAA, Engine & Propeller Standards
D1–02–()()()–()()(), perform the following: Branch, 1200 District Avenue, Burlington,
follows: MA 01803. For information on the
(i) Torque check the seat belt attachment
assemblies on the aisle side, central, and availability of this material at the FAA, call
PART 39—AIRWORTHINESS 781–238–7759.
fuselage side spreaders to 71 in-lbs., and
DIRECTIVES verify that the safety belt attachment is free (5) You may view this service information
to rotate. that is incorporated by reference at the
■ 1. The authority citation for part 39 National Archives and Records
(ii) If the safety belt attachment is not free
continues to read as follows: to rotate following paragraph (g)(2)(i), replace Administration (NARA). For information on
Authority: 49 U.S.C. 106(g), 40113, 44701. the bushing in accordance with paragraph the availability of this material at NARA, call
3.3.1 of Geven SB No. D103–25–004, 202–741–6030, or go to: http://
§ 39.13 [Amended] Revision 4, dated March 15, 2016, or block www.archives.gov/federal-register/cfr/ibr-
each affected seat until the bushing locations.html.
■ 2. The FAA amends § 39.13 by adding
the following new airworthiness replacement is accomplished. Issued in Burlington, Massachusetts, on
directive (AD): (h) No Reporting Requirement September 27, 2018.
Robert J. Ganley,
2018–19–15 GEVEN S.p.A.: Amendment Although the service information
39–19415; Docket No. FAA–2017–0504; identified in paragraph (g) of this AD Manager, Engine and Propeller Standards
Product Identifier 2017–NE–12–AD. specifies to submit certain information to the Branch, Aircraft Certification Service.
manufacturer, this AD does not include that [FR Doc. 2018–21872 Filed 10–9–18; 8:45 am]
(a) Effective Date reporting requirement. BILLING CODE 4910–13–P
This AD is effective November 14, 2018.
(i) Alternative Methods of Compliance
(b) Affected ADs (AMOCs)
None. (1) The Manager, Boston ACO Branch,
DEPARTMENT OF TRANSPORTATION
FAA, has the authority to approve AMOCs
(c) Applicability
for this AD, if requested using the procedures
Federal Aviation Administration
(1) This AD applies to certain GEVEN found in 14 CFR 39.19. In accordance with
S.p.A. (Geven) Type D1–02 (also known as 14 CFR 39.19, send your request to your 14 CFR Part 39
‘‘Lightweight AFT facing seats’’) and D1–03 principal inspector or local Flight Standards [Docket No. FAA–2018–0855; Product
(also known as ‘‘Lightweight’’ Classic and District Office, as appropriate. If sending Identifier 2018–NE–31–AD; Amendment 39–
Prestige) in-arm table, standard, and last row information directly to the manager of the 19416; AD 2018–19–16]
seats, with part numbers (P/Ns) and Boston ACO Branch, send it to the attention
Effectivity Codes listed in Table 1.1.1 of of the person identified in paragraph (j)(1) of RIN 2120–AA64
Geven Service Bulletin (SB) No. D103–25– this AD.
004, Revision 4, dated March 15, 2016. (2) Before using any approved AMOC, Airworthiness Directives; CFM
(2) These appliances are installed on, but notify your appropriate principal inspector, International S.A. Turbofan Engines
not limited to, Avions de transport regional or lacking a principal inspector, the manager
(ATR) 42 and ATR 72 airplanes of U.S. of the local flight standards district office/ AGENCY: Federal Aviation
registry. certificate holding district office. Administration (FAA), DOT.
(d) Subject (j) Related Information ACTION: Final rule; request for
comments.
Joint Aircraft System Component (JASC) (1) For more information about this AD,
2500 Code, Cabin Equipment/Furnishings. contact Neil Doh, Aerospace Engineer, SUMMARY: We are adopting a new
Boston ACO Branch, FAA, 1200 District airworthiness directive (AD) for all CFM
(e) Unsafe Condition Avenue, Burlington, MA 01803; phone: 781–
This AD was prompted by a report that seat 238–7757; fax: 781–238–7199; email:
International S.A. (CFM) LEAP–1A23,
belt attachment bolts were found detached or neil.doh@faa.gov. –1A24, –1A24E1, –1A26, –1A26E1,
partially detached from the seat. We are (2) Refer to European Aviation Safety –1A26CJ, –1A29, –1A29CJ, –1A30,
issuing this AD to prevent failure of the seats Agency (EASA) AD 2014–0187, dated August –1A32, –1A33, –1A33B2, and –1A35A
to perform their intended function, which, if 20, 2014, for more information. You may turbofan engines with certain full
not detected and corrected, could possibly examine the EASA AD in the AD docket on authority digital engine control (FADEC)
result in injury to occupants in case of an the internet at http://www.regulations.gov by and prognostic health monitoring (PHM)
emergency landing. searching for and locating Docket No. FAA– software installed. This AD requires
2017–0504.
(f) Compliance removing certain FADEC and PHM
Comply with this AD within the (k) Material Incorporated by Reference software and installing versions eligible
compliance times specified, unless already (1) The Director of the Federal Register for installation. This AD was prompted
done. approved the incorporation by reference by aborted takeoffs after engines did not
(IBR) of the service information listed in this advance to the desired takeoff fan speed
(g) Required Actions paragraph under 5 U.S.C. 552(a) and 1 CFR due to icing in the pressure sensor line.
daltland on DSKBBV9HB2PROD with RULES
(1) Within six months after the effective part 51. We are issuing this AD to address the
date of this AD, in accordance with Geven SB (2) You must use this service information
No. D103–25–004, Revision 4, dated March as applicable to do the actions required by
unsafe condition on these products.
15, 2016, for all Geven Type D1–03 (also this AD, unless the AD specifies otherwise. DATES: This AD is effective October 25,
known as ‘‘Lightweight’’ Classic and Prestige) (i) GEVEN S.p.A. Service Bulletin No. 2018.
in-arm table, standard, and last row seats, D103–25–004, Revision 4, dated March 15, We must receive comments on this
P/N D1–03–()()()–()()(), modify the safety belt 2016. AD by November 26, 2018.
VerDate Sep<11>2014 16:31 Oct 09, 2018 Jkt 247001 PO 00000 Frm 00014 Fmt 4700 Sfmt 4700 E:\FR\FM\10OCR1.SGM 10OCR1](https://thefederalregister.org/doc/83_FR_51014/page/1.svg)
![50820 Federal Register / Vol. 83, No. 196 / Wednesday, October 10, 2018 / Rules and Regulations
ESTIMATED COSTS
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
Software installation ........................................ 1 work-hour × $85 per hour = $85 ................. $0 $85 $6,970
Authority for This Rulemaking under the criteria of the Regulatory (f) Compliance
Title 49 of the United States Code Flexibility Act. Comply with this AD within the
specifies the FAA’s authority to issue List of Subjects in 14 CFR Part 39 compliance times specified, unless already
rules on aviation safety. Subtitle I, done.
section 106, describes the authority of Air transportation, Aircraft, Aviation (g) Required Actions
the FAA Administrator. ‘‘Subtitle VII: safety, Incorporation by reference,
Safety. (1) Within 90 days after the effective date
Aviation Programs’’ describes in more
of this AD, remove FADEC software, P/N
detail the scope of the Agency’s
Adoption of the Amendment 2590M00P07, version L1A0510, or earlier;
authority.
and PHM software, P/N 2784M64P01,
We are issuing this rulemaking under Accordingly, under the authority version PL1A0510, or earlier, from the
the authority described in Subtitle VII, delegated to me by the Administrator, engine.
Part A, Subpart III, Section 44701: the FAA amends 14 CFR part 39 as (2) Before further flight after the removal of
‘‘General requirements.’’ Under that follows: the FADEC and PHM software required by
section, Congress charges the FAA with
paragraph (g)(1), install FADEC and PHM
promoting safe flight of civil aircraft in PART 39—AIRWORTHINESS software that is eligible for installation.
air commerce by prescribing regulations DIRECTIVES
for practices, methods, and procedures (h) Installation Prohibition
the Administrator finds necessary for ■ 1. The authority citation for part 39 After 90 days from the effective date of this
safety in air commerce. This regulation continues to read as follows: AD, do not operate any engine with FADEC
is within the scope of that authority software, P/N 2590M00P07, version
because it addresses an unsafe condition Authority: 49 U.S.C. 106(g), 40113, 44701.
L1A0510, or earlier, installed; and PHM
that is likely to exist or develop on § 39.13 [Amended] software, P/N 2784M64P01, version
products identified in this rulemaking PL1A0510, or earlier, installed.
action. ■ 2. The FAA amends § 39.13 by adding
This AD is issued in accordance with (i) Alternative Methods of Compliance
the following new airworthiness (AMOCs)
authority delegated by the Executive directive (AD):
Director, Aircraft Certification Service, (1) The Manager, ECO Branch, FAA, has
2018–19–16 CFM International S.A.: the authority to approve AMOCs for this AD,
as authorized by FAA Order 8000.51C.
Amendment 39–19416; Docket No. if requested using the procedures found in 14
In accordance with that order, issuance FAA–2018–0855; Product Identifier
of ADs is normally a function of the CFR 39.19. In accordance with 14 CFR 39.19,
2018–NE–31–AD. send your request to your principal inspector
Compliance and Airworthiness
Division, but during this transition (a) Effective Date or local Flight Standards District Office, as
period, the Executive Director has This AD is effective October 25, 2018. appropriate. If sending information directly
delegated the authority to issue ADs to the manager of the certification office,
(b) Affected ADs send it to the attention of the person
applicable to engines, propellers, and
None. identified in paragraph (j) of this AD. You
associated appliances to the Manager,
may email your request to: ANE-AD-AMOC@
Engine and Propeller Standards Branch, (c) Applicability faa.gov.
Policy and Innovation Division. This AD applies to all CFM LEAP–1A23, (2) Before using any approved AMOC,
Regulatory Findings –1A24, –1A24E1, –1A26, –1A26E1, –1A26CJ, notify your appropriate principal inspector,
–1A29, –1A29CJ, –1A30, –1A32, –1A33, or lacking a principal inspector, the manager
This AD will not have federalism –1A33B2, and –1A35A turbofan engines with of the local flight standards district office/
implications under Executive Order full authority digital engine control (FADEC) certificate holding district office.
13132. This AD will not have a software, part number (P/N) 2590M00P07,
substantial direct effect on the States, on version L1A0510, or earlier, installed; and (j) Related Information
the relationship between the national prognostic health monitoring (PHM) For more information about this AD,
government and the States, or on the software, P/N 2784M64P01, version contact Christopher McGuire, Aerospace
distribution of power and PL1A0510, or earlier, installed. Engineer, ECO Branch, FAA, 1200 District
responsibilities among the various (d) Subject Avenue, Burlington, MA 01803; phone: 781–
levels of government. 238–7120; fax: 781–238–7199; email:
For the reasons discussed above, I Joint Aircraft System Component (JASC)
chris.mcguire@faa.gov.
Code 7600, Engine Controls.
certify that this AD:
(1) Is not a ‘‘significant regulatory (k) Material Incorporated by Reference
(e) Unsafe Condition
action’’ under Executive Order 12866, This AD was prompted by aborted takeoffs None.
(2) Is not a ‘‘significant rule’’ under after engines did not advance to the desired Issued in Burlington, Massachusetts, on
daltland on DSKBBV9HB2PROD with RULES
DOT Regulatory Policies and Procedures takeoff fan speed due to icing in the pressure September 27, 2018.
(44 FR 11034, February 26, 1979), sensor line. We are issuing this AD to prevent Robert J. Ganley,
(3) Will not affect intrastate aviation icing in the pressure sensor lines and
in Alaska, and inaccurate pressure sensor readings. The Manager, Engine and Propeller Standards
(4) Will not have a significant Branch, Aircraft Certification Service.
unsafe condition, if not addressed, could
economic impact, positive or negative, result failure of one or more engines, loss of [FR Doc. 2018–21508 Filed 10–9–18; 8:45 am]
on a substantial number of small entities thrust control, and loss of the airplane. BILLING CODE 4910–13–P
VerDate Sep<11>2014 16:31 Oct 09, 2018 Jkt 247001 PO 00000 Frm 00016 Fmt 4700 Sfmt 9990 E:\FR\FM\10OCR1.SGM 10OCR1](https://thefederalregister.org/doc/83_FR_51014/page/3.svg)
Document Created: 2018-10-10 17:35:51
Document Modified: 2018-10-10 17:35:51
| 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; request for comments. | |
| Dates | This AD is effective October 25, 2018. | |
| Contact | Christopher McGuire, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7120; fax: 781-238-7199; email: [email protected] | |
| FR Citation | 83 FR 50818 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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