83_FR_6486 83 FR 6455 - Airworthiness Directives; GE Aviation Czech s.r.o. Turboprop Engines

83 FR 6455 - Airworthiness Directives; GE Aviation Czech s.r.o. Turboprop Engines

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 31 (February 14, 2018)

Page Range6455-6456
FR Document2018-02994

We are adopting a new airworthiness directive (AD) for GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E- 11S, and M601F turboprop engines. This AD requires removal of certain power turbine (PT) disks installed on the affected engines. This AD was prompted by a design review by the manufacturer that determined PT rotors with certain disks have less overspeed margin than originally stated during product certification. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 31 (Wednesday, February 14, 2018) 
[Federal Register Volume 83, Number 31 (Wednesday, February 14, 2018)]
[Rules and Regulations]
[Pages 6455-6456]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-02994]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0658; Product Identifier 2017-NE-20-AD; Amendment 
39-19195; AD 2018-03-22]
RIN 2120-AA64


Airworthiness Directives; GE Aviation Czech s.r.o. Turboprop 
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for GE 
Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E-
11S, and M601F turboprop engines. This AD requires removal of certain 
power turbine (PT) disks installed on the affected engines. This AD was 
prompted by a design review by the manufacturer that determined PT 
rotors with certain disks have less overspeed margin than originally 
stated during product certification. We are issuing this AD to address 
the unsafe condition on these products.

DATES: This AD is effective March 21, 2018.

ADDRESSES: For service information identified in this final rule, 
contact GE Aviation Czech s.r.o., Beranov[yacute]ch 65, 199 02 Praha 
9--Let[ncaron]any, Czech Republic; phone: +420 222 538 111; fax: +420 
222 538 222. You may view this service information at the FAA, Engine & 
Propeller Standards Branch, 1200 District Avenue, Burlington, MA. For 
information on the availability of this material at the FAA, call 781-
238-7759.

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-2017-
0658; 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 mandatory continuing airworthiness information 
(MCAI), 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: Robert Green, Aerospace Engineer, ECO 
Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-
238-7754; fax: 781-238-7199; email: robert.green@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 GE Aviation Czech s.r.o. 
M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E-11S, and M601F 
turboprop engines. The NPRM published in the Federal Register on 
September 22, 2017 (82 FR 44355). The NPRM was prompted by a design 
review by the manufacturer that determined PT rotors with certain disks 
have less overspeed margin than originally stated during product 
certification. The NPRM proposed to require removal of the affected PT 
disks. We are issuing this AD to correct the unsafe condition on these 
products.
    The MCAI states:

    It was identified during a recent design review that power 
turbine (PT) rotors with certain disks, part number (P/N) M601-
3220.6 and P/N M601-3220.7, have a reduction in the declared 
theoretical PT rotor overspeed limit.
    This condition, if not corrected, may lead to high energy debris 
release in case of PT rotor overspeed occurrence, possibly resulting 
in damage to, and/or reduced control of, the aeroplane.

    You may obtain further information by examining the MCAI in the AD 
docket on the internet at http://www.regulations.gov by searching for 
and locating Docket No. FAA-2017-0658.

Comments

    We gave the public the opportunity to participate in developing 
this final rule. We considered the comment received. Cody Hargis (not 
further identified) supported the NPRM.

Conclusion

    We reviewed the relevant data, considered the comment received, and 
determined that air safety and the public interest require adopting 
this final rule as proposed.

Related Service Information

    We reviewed GE Aviation Czech s.r.o. Alert Service Bulletin (ASB) 
No. ASB-M601E-72-50-00-0069, ASB-M601D-72-50-00-0052, ASB-M601F-72-50-
00-0035, ASB-M601T-72-50-00-0028, and ASB-M601Z-72-50-00-0038, (single 
document), dated February 21, 2017. The ASB describe procedures for 
replacing the PT disk.

Costs of Compliance

    We estimate that this AD affects 50 engines installed on airplanes 
of U.S. registry.
    We estimate the following costs to comply with this AD:

[[Page 6456]]



                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
               Action                        Labor cost           Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
Disk removal and replacement........  56 work-hours x $85 per          $6,989          $11,749         $587,450
                                       hour = $4,760.
----------------------------------------------------------------------------------------------------------------

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 this AD:
    (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, 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):

2018-03-22 GE Aviation Czech s.r.o. (Type Certificate previously 
held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.): 
Amendment 39-19195; Docket No. FAA-2017-0658; Product Identifier 
2017-NE-20-AD.

(a) Effective Date

    This AD is effective March 21, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to GE Aviation Czech s.r.o. M601D-11, M601E-11, 
M601E-11A, M601E-11AS, M601E-11S, and M601F turboprop engines, with 
power turbine (PT) rotors with disks, part number (P/N) M601-3220.6 
or P/N M601-3220.7, installed.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7250, Turbine 
Section.

(e) Unsafe Condition

    This AD was prompted by a review by the manufacturer that 
determined that PT rotors with disks, P/N M601-3220.6 or P/N M601-
3220.7, have less overspeed margin than originally declared during 
product certification. We are issuing this AD to prevent failure of 
the PT rotor. The unsafe condition, if not addressed, could result 
in failure of the PT rotor, uncontained release of the PT disk, 
damage to the engine, and damage to the airplane.

(f) Compliance

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

(g) Required Actions

    After the effective date of this AD, remove the affected PT disk 
from service during the next engine overhaul or rebuild, or within 5 
years, whichever occurs first.

(h) Installation Prohibition

    After the effective date of this AD, do not install an affected 
PT disk on any engine.

(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)(1) 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

    (1) For more information about this AD, contact Robert Green, 
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: 781-238-7754; fax: 781-238-7199; email: 
robert.green@faa.gov.
    (2) Refer to MCAI European Aviation Safety Agency AD 2017-0100, 
dated June 8, 2017, for more information. You may examine the MCAI 
in the AD docket on the internet at http://www.regulations.gov by 
searching for and locating it in Docket No. FAA-2017-0658.

(k) Material Incorporated by Reference

    None.

    Issued in Burlington, Massachusetts, on February 8, 2018.
Robert J. Ganley,
Manager, Engine and Propeller Standards Branch, Aircraft Certification 
Service.
[FR Doc. 2018-02994 Filed 2-13-18; 8:45 am]
BILLING CODE 4910-13-P

Federal Register / Vol. 83, No. 31 / Wednesday, February 14, 2018 / Rules and Regulations 6455 TABLE 3 OF SCHEDULE A—MISCELLANEOUS SERVICES 1—Continued (vii) Extra copies of certificates (per certificate) .................................................................................................................................. 2.00 (viii) Faxing (per page) ........................................................................................................................................................................ 2.00 (ix) Special mailing .............................................................................................................................................................................. Actual Cost (x) Preparing certificates onsite or during other than normal business hours (use hourly rates from Table 1). ............................... ........................ 1 Any requested service that is not listed will be performed at $64.40 per hour. 2 Regularbusiness hours—Monday through Friday—service provided at other than regular business hours will be charged at 1-1⁄2 times the applicable hourly rate. (See the definition of ‘‘business day’’ in § 800.0(b)) 3 Foreign travel charged hourly fee of $83.90 plus travel, per diem, and related expenditures. * * * * * & Propeller Standards Branch, 1200 AD to correct the unsafe condition on Dated: February 8, 2018. District Avenue, Burlington, MA. For these products. Greg Ibach, information on the availability of this The MCAI states: material at the FAA, call 781–238–7759. It was identified during a recent design Under Secretary, Marketing and Regulatory Programs. Examining the AD Docket review that power turbine (PT) rotors with [FR Doc. 2018–02884 Filed 2–13–18; 8:45 am] certain disks, part number (P/N) M601– You may examine the AD docket on 3220.6 and P/N M601–3220.7, have a BILLING CODE 3410–02–P the internet at http:// reduction in the declared theoretical PT rotor www.regulations.gov by searching for overspeed limit. and locating Docket No. FAA–2017– This condition, if not corrected, may lead DEPARTMENT OF TRANSPORTATION 0658; or in person at the Docket to high energy debris release in case of PT rotor overspeed occurrence, possibly Management Facility between 9 a.m. Federal Aviation Administration resulting in damage to, and/or reduced and 5 p.m., Monday through Friday, control of, the aeroplane. except Federal holidays. The AD docket 14 CFR Part 39 contains this AD, the mandatory You may obtain further information [Docket No. FAA–2017–0658; Product continuing airworthiness information by examining the MCAI in the AD Identifier 2017–NE–20–AD; Amendment 39– (MCAI), the regulatory evaluation, any docket on the internet at http:// 19195; AD 2018–03–22] comments received, and other www.regulations.gov by searching for information. The address for the Docket and locating Docket No. FAA–2017– RIN 2120–AA64 0658. Office (phone: 800–647–5527) is Airworthiness Directives; GE Aviation Document Management Facility, U.S. Comments Czech s.r.o. Turboprop Engines Department of Transportation, Docket Operations, M–30, West Building We gave the public the opportunity to AGENCY: Federal Aviation Ground Floor, Room W12–140, 1200 participate in developing this final rule. Administration (FAA), DOT. New Jersey Avenue SE, Washington, DC We considered the comment received. ACTION: Final rule. 20590. Cody Hargis (not further identified) supported the NPRM. FOR FURTHER INFORMATION CONTACT: SUMMARY: We are adopting a new Robert Green, Aerospace Engineer, ECO Conclusion airworthiness directive (AD) for GE Branch, FAA, 1200 District Avenue, Aviation Czech s.r.o. M601D–11, We reviewed the relevant data, Burlington, MA 01803; phone: 781– considered the comment received, and M601E–11, M601E–11A, M601E–11AS, 238–7754; fax: 781–238–7199; email: M601E–11S, and M601F turboprop determined that air safety and the robert.green@faa.gov. public interest require adopting this engines. This AD requires removal of certain power turbine (PT) disks SUPPLEMENTARY INFORMATION: final rule as proposed. installed on the affected engines. This Discussion Related Service Information AD was prompted by a design review by the manufacturer that determined PT We issued a notice of proposed We reviewed GE Aviation Czech s.r.o. rotors with certain disks have less rulemaking (NPRM) to amend 14 CFR Alert Service Bulletin (ASB) No. ASB– overspeed margin than originally stated part 39 by adding an AD that would M601E–72–50–00–0069, ASB–M601D– during product certification. We are apply to GE Aviation Czech s.r.o. 72–50–00–0052, ASB–M601F–72–50– issuing this AD to address the unsafe M601D–11, M601E–11, M601E–11A, 00–0035, ASB–M601T–72–50–00–0028, condition on these products. M601E–11AS, M601E–11S, and M601F and ASB–M601Z–72–50–00–0038, turboprop engines. The NPRM (single document), dated February 21, DATES: This AD is effective March 21, published in the Federal Register on 2017. The ASB describe procedures for 2018. September 22, 2017 (82 FR 44355). The replacing the PT disk. ADDRESSES: For service information NPRM was prompted by a design review identified in this final rule, contact GE by the manufacturer that determined PT Costs of Compliance Aviation Czech s.r.o., Beranových 65, rotors with certain disks have less We estimate that this AD affects 50 199 02 Praha 9—Letňany, Czech overspeed margin than originally stated engines installed on airplanes of U.S. Republic; phone: +420 222 538 111; fax: during product certification. The NPRM registry. +420 222 538 222. You may view this proposed to require removal of the We estimate the following costs to daltland on DSKBBV9HB2PROD with RULES service information at the FAA, Engine affected PT disks. We are issuing this comply with this AD: VerDate Sep<11>2014 18:30 Feb 13, 2018 Jkt 244001 PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 E:\FR\FM\14FER1.SGM 14FER1

6456 Federal Register / Vol. 83, No. 31 / Wednesday, February 14, 2018 / Rules and Regulations ESTIMATED COSTS Cost per Cost on U.S. Action Labor cost Parts cost product operators Disk removal and replacement ....................... 56 work-hours × $85 per hour = $4,760 ........ $6,989 $11,749 $587,450 Authority for This Rulemaking on a substantial number of small entities (f) Compliance Title 49 of the United States Code under the criteria of the Regulatory Comply with this AD within the specifies the FAA’s authority to issue Flexibility Act. compliance times specified, unless already rules on aviation safety. Subtitle I, List of Subjects in 14 CFR Part 39 done. section 106, describes the authority of (g) Required Actions the FAA Administrator. Subtitle VII: Air transportation, Aircraft, Aviation Aviation Programs, describes in more safety, Incorporation by reference, After the effective date of this AD, remove detail the scope of the Agency’s Safety. the affected PT disk from service during the authority. next engine overhaul or rebuild, or within 5 We are issuing this rulemaking under Adoption of the Amendment years, whichever occurs first. the authority described in Subtitle VII, Accordingly, under the authority (h) Installation Prohibition Part A, Subpart III, Section 44701: delegated to me by the Administrator, After the effective date of this AD, do not ‘‘General requirements.’’ Under that the FAA amends 14 CFR part 39 as install an affected PT disk on any engine. section, Congress charges the FAA with follows: promoting safe flight of civil aircraft in (i) Alternative Methods of Compliance air commerce by prescribing regulations PART 39—AIRWORTHINESS (AMOCs) for practices, methods, and procedures DIRECTIVES (1) The Manager, ECO Branch, FAA, has the Administrator finds necessary for the authority to approve AMOCs for this AD safety in air commerce. This regulation ■ 1. The authority citation for part 39 if requested using the procedures found in 14 is within the scope of that authority continues to read as follows: CFR 39.19. In accordance with 14 CFR 39.19, because it addresses an unsafe condition send your request to your principal inspector that is likely to exist or develop on Authority: 49 U.S.C. 106(g), 40113, 44701. or local Flight Standards District Office, as products identified in this rulemaking § 39.13 [ Amended] appropriate. If sending information directly action. to the manager of the certification office, This AD is issued in accordance with ■ 2. The FAA amends § 39.13 by adding send it to the attention of the person authority delegated by the Executive the following new airworthiness identified in paragraph (j)(1) of this AD. You Director, Aircraft Certification Service, directive (AD): may email your request to: ANE–AD–AMOC@ as authorized by FAA Order 8000.51C. 2018–03–22 GE Aviation Czech s.r.o. (Type faa.gov. In accordance with that order, issuance Certificate previously held by WALTER (2) Before using any approved AMOC, of ADs is normally a function of the Engines a.s., Walter a.s., and notify your appropriate principal inspector, Compliance and Airworthiness MOTORLET a.s.): Amendment 39– or lacking a principal inspector, the manager Division, but during this transition 19195; Docket No. FAA–2017–0658; of the local flight standards district office/ period, the Executive Director has Product Identifier 2017–NE–20–AD. certificate holding district office. delegated the authority to issue ADs (a) Effective Date (j) Related Information applicable to engines, propellers, and This AD is effective March 21, 2018. (1) For more information about this AD, associated appliances to the Manager, Engine and Propeller Standards Branch, (b) Affected ADs contact Robert Green, Aerospace Engineer, Policy and Innovation Division. ECO Branch, FAA, 1200 District Avenue, None. Burlington, MA 01803; phone: 781–238– Regulatory Findings (c) Applicability 7754; fax: 781–238–7199; email: This AD will not have federalism This AD applies to GE Aviation Czech robert.green@faa.gov. implications under Executive Order s.r.o. M601D–11, M601E–11, M601E–11A, (2) Refer to MCAI European Aviation 13132. This AD will not have a M601E–11AS, M601E–11S, and M601F Safety Agency AD 2017–0100, dated June 8, substantial direct effect on the States, on turboprop engines, with power turbine (PT) 2017, for more information. You may rotors with disks, part number (P/N) M601– examine the MCAI in the AD docket on the the relationship between the national 3220.6 or P/N M601–3220.7, installed. internet at http://www.regulations.gov by government and the States, or on the distribution of power and (d) Subject searching for and locating it in Docket No. responsibilities among the various Joint Aircraft System Component (JASC) FAA–2017–0658. levels of government. Code 7250, Turbine Section. (k) Material Incorporated by Reference For the reasons discussed above, I (e) Unsafe Condition None. certify this AD: (1) Is not a ‘‘significant regulatory This AD was prompted by a review by the Issued in Burlington, Massachusetts, on action’’ under Executive Order 12866, manufacturer that determined that PT rotors February 8, 2018. (2) Is not a ‘‘significant rule’’ under with disks, P/N M601–3220.6 or P/N M601– 3220.7, have less overspeed margin than Robert J. Ganley, daltland on DSKBBV9HB2PROD with RULES the DOT Regulatory Policies and originally declared during product Manager, Engine and Propeller Standards Procedures (44 FR 11034, February 26, certification. We are issuing this AD to Branch, Aircraft Certification Service. 1979), prevent failure of the PT rotor. The unsafe [FR Doc. 2018–02994 Filed 2–13–18; 8:45 am] (3) Will not affect intrastate aviation condition, if not addressed, could result in in Alaska, and BILLING CODE 4910–13–P failure of the PT rotor, uncontained release (4) Will not have a significant of the PT disk, damage to the engine, and economic impact, positive or negative, damage to the airplane. VerDate Sep<11>2014 18:30 Feb 13, 2018 Jkt 244001 PO 00000 Frm 00006 Fmt 4700 Sfmt 9990 E:\FR\FM\14FER1.SGM 14FER1


Document Created: 2018-02-14 03:58:57
Document Modified: 2018-02-14 03:58:57
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective March 21, 2018.
ContactRobert Green, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781- 238-7754; fax: 781-238-7199; email: [email protected]
FR Citation83 FR 6455 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
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