83 FR 49784 - Airworthiness Directives; General Electric Company CF34-8E Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 192 (October 3, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 192 (October 3, 2018)
| Page Range | 49784-49786 | |
| FR Document | 2018-21378 |
[Federal Register Volume 83, Number 192 (Wednesday, October 3, 2018)] [Rules and Regulations] [Pages 49784-49786] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-21378] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0142; Product Identifier 2018-NE-04-AD; Amendment 39-19368; AD 2018-17-14] RIN 2120-AA64 Airworthiness Directives; General Electric Company CF34-8E Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are adopting a new airworthiness directive (AD) for certain General Electric Company (GE) CF34-8E turbofan engines. This AD was prompted by a report from GE regarding a quality escape of nonconforming thrust reverser fire seals. This AD requires a one-time inspection of the gap between the core cowl seal and the pylon seal of the thrust reverser for correct gap width, and replacement of the seals, if needed. We are issuing this AD to address the unsafe condition on these products. DATES: This AD is effective November 7, 2018. ADDRESSES: For service information identified in this final rule, contact General Electric Company, 1 Neumann Way, Cincinnati, OH 45215; telephone 513-552-3272; 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- 0142. 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- 0142; 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 address for Docket Operations (phone: 800-647- 5527) is 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: David Bethka, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781- 238-7129; fax: 781-238-7199; email: david.bethka@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 certain GE CF34-8E turbofan engines. The NPRM published in the Federal Register on April 17, 2018 (83 FR 16794). The NPRM was prompted by a report from the manufacturer about a fire seal gap quality escape on GE CF34-8E turbofan engines. Some thrust reverser fire seals, installed on thrust reverser part numbers (P/Ns) 15G0002-013, 15G0002-014, 15G0003-013, and 15G0003-014, were shipped from a supplier with nonconforming seal gaps. The NPRM proposed to require a one-time inspection of the gap between the core cowl seal and the pylon seal of the thrust reverser for correct gap width, and replacement of the thrust reverser fire seals, if needed. We are issuing this AD to address the unsafe condition on these products. Comments We gave the public the opportunity to participate in developing this final rule. The following presents the comments received on the NPRM and the FAA's response to each comment. Request To Change the Applicability Two commenters, Horizon Air and Republic Airline, requested that we limit the applicability of this AD to a specific group of GE CF34-8E turbofan engine thrust reverser halves that are known to have a fire seal gap nonconformance. A change of applicability from all GE CF34-8E turbofan engines to only the known group of affected thrust reverser halves would reduce the inspection burden on operators. We agree. We changed the applicability of this AD to list only the affected half thrust reverser P/Ns and serial numbers. We also updated the number of affected thrust reverser assemblies and estimated costs. Request To Change Required Actions Horizon Air requested that we change the required actions of this AD to replace ``all GE CF34-8E turbofan engines'' with ``all thrust reversers listed in paragraph (c).'' We agree. We reworded the required actions of this AD to indicate that these actions are only required for GE CF34- [[Page 49785]] 8E turbofan engines with affected half thrust reversers installed. Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this final rule with the changes described previously and minor editorial changes. We have determined that these minor changes:Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and Do not add any additional burden upon the public than was already proposed in the NPRM. We also determined that these changes will not increase the economic burden on any operator or increase the scope of this final rule. Related Service Information We reviewed GE CF34-8E Service Bulletin (SB) 78-0066 R01, dated June 20, 2018. The SB describes procedures for measuring the width of the RTV filled gap between the thrust reverser fire seals at the 12 o'clock core cowl seal and pylon seal installed on thrust reverser P/Ns 15G0002-013, 15G0002-014, 15G0003-013, and 15G0003-014, and replacing with parts eligible for installation, if needed. Costs of Compliance We estimate that this AD affects 194 thrust reverser assemblies installed on airplanes of U.S. registry. We estimate the following costs to comply with this AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost per Cost on U.S. Action Labor cost Parts cost product operators ---------------------------------------------------------------------------------------------------------------- Inspection............................ 0.25 work-hours x $85 $0 $21.25 $4,122.50 per hour = $21.25. ---------------------------------------------------------------------------------------------------------------- We estimate the following costs to do any necessary replacements that would be required based on the results of the proposed inspection. We have no way of determining the number of aircraft that might need these replacements: On-Condition Costs ---------------------------------------------------------------------------------------------------------------- Cost per Action Labor cost Parts cost product ---------------------------------------------------------------------------------------------------------------- Remove and replace thrust reverser fire 2.75 work-hours x $85 per hour = $3,228 $3,461.75 seals. $233.75. ---------------------------------------------------------------------------------------------------------------- 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): 2018-17-14 General Electric Company: Amendment 39-19368 Docket No. FAA-2018-0142; Product Identifier 2018-NE-04-AD. (a) Effective Date This AD is effective November 7, 2018. (b) Affected ADs None. (c) Applicability This AD applies to General Electric Company (GE) CF34-8E turbofan engines with: (1) Left-hand (LH) half thrust reverser, part number (P/N) 15G0002-013, or LH half thrust reverser P/N 15G0002-014, with the following serial numbers (S/Ns): HRD00659 to HRD00662, HRD00675 to HRD00678, [[Page 49786]] HRD00680, HRD00681, HRD00694 to HRD00697, HRD00711, HRD00831, HRD00856, HRD00878 to HRD00895, HRD01025, HRD01040, HRD01047, HRD01050 to HRD01057, HRD01059 to HRD01089, HRD01104, HRD01105, HRD01108, HRD01111 to HRD01116, HRD01118 to HRD01121, HRD01123, HRD01124, HRD01126, HRD01162, HRD01185 to HRD01198, HRD01201, HRD01202, or HRD01226 to HRD01243, installed. (2) Right-hand (RH) half thrust reverser, P/N 15G0003-013, or RH half thrust reverser P/N 15G0003-014, with the following S/Ns: HRD00669 to HRD00678, HRD00680, HRD00681, HRD00703 to HRD00707, HRD00722, HRD00825, HRD00919, HRD00922, HRD01018, HRD01022, HRD01023, HRD01027 to HRD01033, HRD01035, HRD01036, HRD01038, HRD01039, HRD01041 to HRD01046, HRD01048, HRD01049, HRD01059 to HRD01079, HRD01081, HRD01082, HRD01084 to HRD01092, HRD01100, HRD01117, HRD01140, HRD01146, HRD01162, HRD01185 to HRD01187, HRD01189 to HRD01198, HRD01201, HRD01202, HRD01210, or HRD01213 to HRD01223, installed. (d) Subject Joint Aircraft System Component (JASC) Code 7830, Thrust Reverser. (e) Unsafe Condition This AD was prompted by a report from GE regarding a quality escape of nonconforming thrust reverser fire seal gaps. We are issuing this AD to inspect for nonconforming thrust reverser fire seal gaps that could result in a fire outside the fire zone. The unsafe condition, if not addressed, could result in an uncontrolled fire, 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 (1) For all half thrust reversers listed in paragraph (c) of this AD, before the half thrust reverser accumulates 8,000 flight hours after the effective date of this AD, perform the following one-time inspection, and, if needed, replace the core cowl seal and pylon seal. (i) Measure the width of the RTV filled gap between thrust reverser fire seals at the junction between 12 o'clock core cowl seal and pylon seal, at the following half thrust reverser locations: LH half thrust reverser, P/N 15G0002-013; LH half thrust reverser, P/N 15G0002-014; RH half thrust reverser, P/N 15G0003-013; and RH half thrust reverser P/N 15G0003-014. (ii) If the gap width between the 12 o'clock core cowl seal and the pylon seal is greater than 1 mm, replace both seals with parts eligible for installation to form a new gap of 1 mm or less, prior to returning to service. (2) You may refer to GE CF34-8E Service Bulletin 78-0066 R01, dated June 20, 2018, for guidance on inspecting and replacing the thrust reverser fire seals. (h) 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 (i) 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. (i) Related Information For more information about this AD, contact David Bethka, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7129; fax: 781-238-7199; email: david.bethka@faa.gov. (j) Material Incorporated by Reference None. Issued in Burlington, Massachusetts, on September 26, 2018. Karen M. Grant, Acting Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018-21378 Filed 10-2-18; 8:45 am] BILLING CODE 4910-13-P
![49784 Federal Register / Vol. 83, No. 192 / Wednesday, October 3, 2018 / Rules and Regulations
comply with the AD. If a step or substep is DEPARTMENT OF TRANSPORTATION FOR FURTHER INFORMATION CONTACT:
labeled ‘‘RC Exempt,’’ then the RC David Bethka, Aerospace Engineer, ECO
requirement is removed from that step or Federal Aviation Administration Branch, FAA, 1200 District Avenue,
substep. An AMOC is required for any Burlington, MA 01803; phone: 781–
deviations to RC steps, including substeps 14 CFR Part 39 238–7129; fax: 781–238–7199; email:
and identified figures. david.bethka@faa.gov.
(ii) Steps not labeled as RC may be [Docket No. FAA–2018–0142; Product
Identifier 2018–NE–04–AD; Amendment 39– SUPPLEMENTARY INFORMATION:
deviated from using accepted methods in
19368; AD 2018–17–14]
accordance with the operator’s maintenance Discussion
or inspection program without obtaining RIN 2120–AA64 We issued a notice of proposed
approval of an AMOC, provided the RC steps, rulemaking (NPRM) to amend 14 CFR
including substeps and identified figures, can Airworthiness Directives; General
part 39 by adding an AD that would
still be done as specified, and the airplane Electric Company CF34–8E Engines
apply to certain GE CF34–8E turbofan
can be put back in an airworthy condition.
AGENCY: Federal Aviation engines. The NPRM published in the
(k) Related Information Administration (FAA), DOT. Federal Register on April 17, 2018 (83
For more information about this AD, ACTION: Final rule. FR 16794). The NPRM was prompted by
contact Susan L. Monroe, Aerospace a report from the manufacturer about a
Engineer, Cabin Safety and Environmental SUMMARY: We are adopting a new fire seal gap quality escape on GE CF34–
Systems Section, FAA, Seattle ACO Branch, airworthiness directive (AD) for certain 8E turbofan engines. Some thrust
2200 South 216th St., Des Moines, WA General Electric Company (GE) CF34–8E reverser fire seals, installed on thrust
98198; phone and fax: 206–231–3570; email: turbofan engines. This AD was reverser part numbers (P/Ns) 15G0002–
susan.l.monroe@faa.gov. prompted by a report from GE regarding 013, 15G0002–014, 15G0003–013, and
a quality escape of nonconforming 15G0003–014, were shipped from a
(l) Material Incorporated by Reference thrust reverser fire seals. This AD supplier with nonconforming seal gaps.
(1) The Director of the Federal Register requires a one-time inspection of the The NPRM proposed to require a one-
approved the incorporation by reference gap between the core cowl seal and the time inspection of the gap between the
(IBR) of the service information listed in this pylon seal of the thrust reverser for core cowl seal and the pylon seal of the
paragraph under 5 U.S.C. 552(a) and 1 CFR correct gap width, and replacement of thrust reverser for correct gap width,
part 51. the seals, if needed. We are issuing this and replacement of the thrust reverser
(2) You must use this service information AD to address the unsafe condition on fire seals, if needed. We are issuing this
as applicable to do the actions required by these products. AD to address the unsafe condition on
this AD, unless the AD specifies otherwise. these products.
DATES: This AD is effective November 7,
(i) Boeing Special Attention Service
Bulletin 747–52–2307, Revision 1, dated May
2018. Comments
2, 2018. ADDRESSES: For service information
We gave the public the opportunity to
(ii) Boeing Special Attention Service identified in this final rule, contact participate in developing this final rule.
Bulletin 747–52–2308, Revision 1, dated June General Electric Company, 1 Neumann The following presents the comments
18, 2018. Way, Cincinnati, OH 45215; telephone received on the NPRM and the FAA’s
(iii) Boeing Special Attention Service 513–552–3272; email: response to each comment.
Bulletin 757–52–0093, Revision 2, dated aviation.fleetsupport@ge.com. You may
November 14, 2017. view this service information at the Request To Change the Applicability
(3) For The Boeing Company service FAA, Engine and Propeller Standards Two commenters, Horizon Air and
information identified in this AD, contact Branch, 1200 District Avenue, Republic Airline, requested that we
Boeing Commercial Airplanes, Attention: Burlington, MA 01803. For information limit the applicability of this AD to a
Contractual & Data Services (C&DS), 2600 on the availability of this material at the specific group of GE CF34–8E turbofan
Westminster Blvd., MC 110–SK57, Seal FAA, call 781–238–7759. It is also
Beach, CA 90740–5600; telephone 562–797–
engine thrust reverser halves that are
available on the internet at http:// known to have a fire seal gap
1717; internet https:// www.regulations.gov by searching for
www.myboeingfleet.com. nonconformance. A change of
and locating Docket No. FAA–2018– applicability from all GE CF34–8E
(4) You may view this service information
0142. turbofan engines to only the known
at the FAA, Transport Standards Branch,
2200 South 216th St., Des Moines, WA. For Examining the AD Docket group of affected thrust reverser halves
information on the availability of this would reduce the inspection burden on
You may examine the AD docket on operators.
material at the FAA, call 206–231–3195.
the internet at http:// We agree. We changed the
(5) You may view this service information
that is incorporated by reference at the
www.regulations.gov by searching for applicability of this AD to list only the
National Archives and Records and locating Docket No. FAA–2018– affected half thrust reverser P/Ns and
Administration (NARA). For information on 0142; or in person at Docket Operations serial numbers. We also updated the
the availability of this material at NARA, call between 9 a.m. and 5 p.m., Monday number of affected thrust reverser
202–741–6030, or go to: http:// through Friday, except Federal holidays. assemblies and estimated costs.
www.archives.gov/federal-register/cfr/ibr- The AD docket contains this final rule,
locations.html. the regulatory evaluation, any Request To Change Required Actions
comments received, and other Horizon Air requested that we change
Issued in Des Moines, Washington, on
information. The address for Docket
daltland on DSKBBV9HB2PROD with RULES
September 14, 2018.
the required actions of this AD to
Operations (phone: 800–647–5527) is replace ‘‘all GE CF34–8E turbofan
John P. Piccola, U.S. Department of Transportation, engines’’ with ‘‘all thrust reversers listed
Acting Director, System Oversight Division, Docket Operations, M–30, West in paragraph (c).’’
Aircraft Certification Service. Building Ground Floor, Room W12–140, We agree. We reworded the required
[FR Doc. 2018–21346 Filed 10–2–18; 8:45 am] 1200 New Jersey Avenue SE, actions of this AD to indicate that these
BILLING CODE 4910–13–P Washington, DC, 20590. actions are only required for GE CF34–
VerDate Sep<11>2014 16:40 Oct 02, 2018 Jkt 247001 PO 00000 Frm 00016 Fmt 4700 Sfmt 4700 E:\FR\FM\03OCR1.SGM 03OCR1](https://thefederalregister.org/doc/83_FR_49976/page/1.svg)
![Federal Register / Vol. 83, No. 192 / Wednesday, October 3, 2018 / Rules and Regulations 49785
8E turbofan engines with affected half • Do not add any additional burden and pylon seal installed on thrust
thrust reversers installed. upon the public than was already reverser P/Ns 15G0002–013, 15G0002–
proposed in the NPRM. 014, 15G0003–013, and 15G0003–014,
Conclusion We also determined that these and replacing with parts eligible for
We reviewed the relevant data, changes will not increase the economic installation, if needed.
considered the comments received, and burden on any operator or increase the
determined that air safety and the scope of this final rule. Costs of Compliance
public interest require adopting this
final rule with the changes described Related Service Information We estimate that this AD affects 194
previously and minor editorial changes. We reviewed GE CF34–8E Service thrust reverser assemblies installed on
We have determined that these minor Bulletin (SB) 78–0066 R01, dated June airplanes of U.S. registry.
changes: 20, 2018. The SB describes procedures We estimate the following costs to
• Are consistent with the intent that for measuring the width of the RTV comply with this AD:
was proposed in the NPRM for filled gap between the thrust reverser
addressing the unsafe condition; and fire seals at the 12 o’clock core cowl seal
ESTIMATED COSTS
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
Inspection ........................................................ 0.25 work-hours × $85 per hour = $21.25 ..... $0 $21.25 $4,122.50
We estimate the following costs to do be required based on the results of the determining the number of aircraft that
any necessary replacements that would proposed inspection. We have no way of might need these replacements:
ON-CONDITION COSTS
Cost per
Action Labor cost Parts cost product
Remove and replace thrust reverser fire seals ............ 2.75 work-hours × $85 per hour = $233.75 ................. $3,228 $3,461.75
Authority for This Rulemaking applicable to engines, propellers, and Adoption of the Amendment
Title 49 of the United States Code associated appliances to the Manager, Accordingly, under the authority
specifies the FAA’s authority to issue Engine and Propeller Standards Branch, delegated to me by the Administrator,
rules on aviation safety. Subtitle I, Policy and Innovation Division. the FAA amends 14 CFR part 39 as
section 106, describes the authority of Regulatory Findings follows:
the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more This AD will not have federalism PART 39—AIRWORTHINESS
detail the scope of the Agency’s implications under Executive Order DIRECTIVES
authority. 13132. This AD will not have a
substantial direct effect on the States, on ■ 1. The authority citation for part 39
We are issuing this rulemaking under continues to read as follows:
the relationship between the national
the authority described in Subtitle VII,
government and the States, or on the Authority: 49 U.S.C. 106(g), 40113, 44701.
Part A, Subpart III, Section 44701:
distribution of power and
‘‘General requirements.’’ Under that § 39.13 [Amended]
responsibilities among the various
section, Congress charges the FAA with
levels of government. ■ 2. The FAA amends § 39.13 by adding
promoting safe flight of civil aircraft in
For the reasons discussed above, I the following new airworthiness
air commerce by prescribing regulations
certify that this AD: directive (AD):
for practices, methods, and procedures
(1) Is not a ‘‘significant regulatory 2018–17–14 General Electric Company:
the Administrator finds necessary for Amendment 39–19368 Docket No. FAA–
safety in air commerce. This regulation action’’ under Executive Order 12866,
2018–0142; Product Identifier 2018–NE–
is within the scope of that authority (2) Is not a ‘‘significant rule’’ under 04–AD.
because it addresses an unsafe condition DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979), (a) Effective Date
that is likely to exist or develop on
products identified in this rulemaking (3) Will not affect intrastate aviation This AD is effective November 7, 2018.
action. in Alaska, and (b) Affected ADs
This AD is issued in accordance with (4) Will not have a significant None.
authority delegated by the Executive economic impact, positive or negative,
Director, Aircraft Certification Service, on a substantial number of small entities (c) Applicability
as authorized by FAA Order 8000.51C. under the criteria of the Regulatory This AD applies to General Electric
daltland on DSKBBV9HB2PROD with RULES
In accordance with that order, issuance Flexibility Act. Company (GE) CF34–8E turbofan engines
of ADs is normally a function of the with:
List of Subjects in 14 CFR Part 39 (1) Left-hand (LH) half thrust reverser, part
Compliance and Airworthiness number (P/N) 15G0002–013, or LH half
Division, but during this transition Air transportation, Aircraft, Aviation thrust reverser P/N 15G0002–014, with the
period, the Executive Director has safety, Incorporation by reference, following serial numbers (S/Ns): HRD00659
delegated the authority to issue ADs Safety. to HRD00662, HRD00675 to HRD00678,
VerDate Sep<11>2014 16:40 Oct 02, 2018 Jkt 247001 PO 00000 Frm 00017 Fmt 4700 Sfmt 4700 E:\FR\FM\03OCR1.SGM 03OCR1](https://thefederalregister.org/doc/83_FR_49976/page/2.svg)
![49786 Federal Register / Vol. 83, No. 192 / Wednesday, October 3, 2018 / Rules and Regulations
HRD00680, HRD00681, HRD00694 to (h) Alternative Methods of Compliance new or revised maintenance
HRD00697, HRD00711, HRD00831, (AMOCs) instructions and airworthiness
HRD00856, HRD00878 to HRD00895, (1) The Manager, ECO Branch, FAA, has limitations. We are issuing this AD to
HRD01025, HRD01040, HRD01047, the authority to approve AMOCs for this AD, address the unsafe condition on these
HRD01050 to HRD01057, HRD01059 to if requested using the procedures found in 14
HRD01089, HRD01104, HRD01105, products.
CFR 39.19. In accordance with 14 CFR 39.19,
HRD01108, HRD01111 to HRD01116, send your request to your principal inspector DATES: This AD is effective November 7,
HRD01118 to HRD01121, HRD01123, or local Flight Standards District Office, as 2018.
HRD01124, HRD01126, HRD01162, appropriate. If sending information directly The Director of the Federal Register
HRD01185 to HRD01198, HRD01201, to the manager of the certification office, approved the incorporation by reference
HRD01202, or HRD01226 to HRD01243,
installed.
send it to the attention of the person of certain publications listed in this AD
identified in paragraph (i) of this AD. You as of November 7, 2018.
(2) Right-hand (RH) half thrust reverser, P/ may email your request to: ANE-AD-AMOC@
N 15G0003–013, or RH half thrust reverser P/ ADDRESSES: For service information
faa.gov.
N 15G0003–014, with the following S/Ns:
(2) Before using any approved AMOC,
identified in this final rule, contact BAE
HRD00669 to HRD00678, HRD00680, Systems (Operations) Limited, Customer
notify your appropriate principal inspector,
HRD00681, HRD00703 to HRD00707, Information Department, Prestwick
or lacking a principal inspector, the manager
HRD00722, HRD00825, HRD00919, International Airport, Ayrshire, KA9
of the local Flight Standards District Office/
HRD00922, HRD01018, HRD01022,
HRD01023, HRD01027 to HRD01033,
Certificate Holding District Office. 2RW, Scotland, United Kingdom;
HRD01035, HRD01036, HRD01038, (i) Related Information
telephone +44 1292 675207; fax +44
HRD01039, HRD01041 to HRD01046, 1292 675704; email RApublications@
For more information about this AD, baesystems.com; internet http://
HRD01048, HRD01049, HRD01059 to
contact David Bethka, Aerospace Engineer,
HRD01079, HRD01081, HRD01082,
ECO Branch, FAA, 1200 District Avenue,
www.baesystems.com/Businesses/
HRD01084 to HRD01092, HRD01100, RegionalAircraft/index.htm. You may
Burlington, MA 01803; phone: 781–238–
HRD01117, HRD01140, HRD01146, view this service information at the
7129; fax: 781–238–7199; email:
HRD01162, HRD01185 to HRD01187, FAA, Transport Standards Branch, 2200
david.bethka@faa.gov.
HRD01189 to HRD01198, HRD01201,
South 216th St., Des Moines, WA. For
HRD01202, HRD01210, or HRD01213 to (j) Material Incorporated by Reference
HRD01223, installed. information on the availability of this
None. material at the FAA, call 206–231–3195.
(d) Subject Issued in Burlington, Massachusetts, on It is also available on the internet at
Joint Aircraft System Component (JASC) September 26, 2018. http://www.regulations.gov by searching
Code 7830, Thrust Reverser. Karen M. Grant, for and locating Docket No. FAA–2018–
(e) Unsafe Condition Acting Manager, Engine and Propeller 0511.
This AD was prompted by a report from GE Standards Branch, Aircraft Certification
Service.
Examining the AD Docket
regarding a quality escape of nonconforming
thrust reverser fire seal gaps. We are issuing [FR Doc. 2018–21378 Filed 10–2–18; 8:45 am] You may examine the AD docket on
this AD to inspect for nonconforming thrust BILLING CODE 4910–13–P
the internet at http://
reverser fire seal gaps that could result in a www.regulations.gov by searching for
fire outside the fire zone. The unsafe and locating Docket No. FAA–2018–
condition, if not addressed, could result in an DEPARTMENT OF TRANSPORTATION 0511; or in person at Docket Operations
uncontrolled fire, damage to the engine, and between 9 a.m. and 5 p.m., Monday
damage to the airplane. Federal Aviation Administration through Friday, except Federal holidays.
(f) Compliance The AD docket contains this final rule,
Comply with this AD within the 14 CFR Part 39 the regulatory evaluation, any
compliance times specified, unless already [Docket No. FAA–2018–0511; Product
comments received, and other
done. Identifier 2017–NM–145–AD; Amendment information. The address for Docket
39–19425; AD 2018–19–24] Operations (phone: 800–647–5527) is
(g) Required Actions
U.S. Department of Transportation,
(1) For all half thrust reversers listed in RIN 2120–AA64 Docket Operations, M–30, West
paragraph (c) of this AD, before the half
thrust reverser accumulates 8,000 flight
Building Ground Floor, Room W12–140,
Airworthiness Directives; BAE
hours after the effective date of this AD, 1200 New Jersey Avenue SE,
Systems (Operations) Limited
perform the following one-time inspection, Washington, DC 20590.
Airplanes
and, if needed, replace the core cowl seal and FOR FURTHER INFORMATION CONTACT:
pylon seal. AGENCY: Federal Aviation Todd Thompson, Aerospace Engineer,
(i) Measure the width of the RTV filled gap Administration (FAA), Department of International Section, Transport
between thrust reverser fire seals at the Transportation (DOT). Standards Branch, FAA, 2200 South
junction between 12 o’clock core cowl seal
and pylon seal, at the following half thrust ACTION: Final rule. 216th St., Des Moines, WA 98198;
reverser locations: LH half thrust reverser, P/ telephone and fax 206–231–3228.
N 15G0002–013; LH half thrust reverser, P/ SUMMARY: We are adopting a new SUPPLEMENTARY INFORMATION:
N 15G0002–014; RH half thrust reverser, P/ airworthiness directive (AD) for all BAE
N 15G0003–013; and RH half thrust reverser Systems (Operations) Limited Model Discussion
P/N 15G0003–014. 4101 airplanes. This AD was prompted We issued a notice of proposed
(ii) If the gap width between the 12 o’clock by a determination that inspection rulemaking (NPRM) to amend 14 CFR
core cowl seal and the pylon seal is greater requirements for a number of part 39 by adding an AD that would
daltland on DSKBBV9HB2PROD with RULES
than 1 mm, replace both seals with parts maintenance tasks are incorrect. This apply to all BAE Systems (Operations)
eligible for installation to form a new gap of
1 mm or less, prior to returning to service. AD requires a one-time detailed Limited Model 4101 airplanes. The
(2) You may refer to GE CF34–8E Service inspection of a certain fuselage frame NPRM published in the Federal
Bulletin 78–0066 R01, dated June 20, 2018, and repair, if necessary, and a revision Register on June 14, 2018 (83 FR 27721).
for guidance on inspecting and replacing the of the maintenance or inspection The NPRM was prompted by a
thrust reverser fire seals. program, as applicable, to incorporate determination that inspection
VerDate Sep<11>2014 16:40 Oct 02, 2018 Jkt 247001 PO 00000 Frm 00018 Fmt 4700 Sfmt 4700 E:\FR\FM\03OCR1.SGM 03OCR1](https://thefederalregister.org/doc/83_FR_49976/page/3.svg)
Document Created: 2018-10-03 02:29:45
Document Modified: 2018-10-03 02:29:45
| 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 November 7, 2018. | |
| Contact | David Bethka, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781- 238-7129; fax: 781-238-7199; email: [email protected] | |
| FR Citation | 83 FR 49784 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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