83 FR 34753 - Airworthiness Directives; The Boeing Company Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 141 (July 23, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 141 (July 23, 2018)
| Page Range | 34753-34755 | |
| FR Document | 2018-15535 |
[Federal Register Volume 83, Number 141 (Monday, July 23, 2018)] [Rules and Regulations] [Pages 34753-34755] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-15535] ======================================================================== Rules and Regulations Federal Register ________________________________________________________________________ This section of the FEDERAL REGISTER contains regulatory documents having general applicability and legal effect, most of which are keyed to and codified in the Code of Federal Regulations, which is published under 50 titles pursuant to 44 U.S.C. 1510. The Code of Federal Regulations is sold by the Superintendent of Documents. ======================================================================== Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations [[Page 34753]] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0114; Product Identifier 2017-NM-167-AD; Amendment 39-19335; AD 2018-15-03] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are adopting a new airworthiness directive (AD) for The Boeing Company Model 787 series airplanes powered by Rolls Royce Trent 1000 engines. This AD was prompted by a report of failures of the inner fixed structure (IFS) forward upper fire seal and damage to thermal insulation blankets in the forward upper area of the thrust reverser (TR). This AD requires an inspection to determine the part number of the IFS forward upper fire seal, and applicable on-condition actions. We are issuing this AD to address the unsafe condition on these products. DATES: This AD is effective August 27, 2018. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of August 27, 2018. ADDRESSES: For service information identified in this final rule, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600; telephone 562-797-1717; internet https://www.myboeingfleet.com. You may view this referenced service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018- 0114. 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- 0114; 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 Docket Operations, 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: Tak Kobayashi, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA; phone: 206-231-3553; email: [email protected]. 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 The Boeing Company Model 787 series airplanes powered by Rolls Royce Trent 1000 engines. The NPRM published in the Federal Register on February 23, 2018 (83 FR 8017). The NPRM was prompted by reports of failures of the IFS forward upper fire seal and damage to thermal insulation blankets in the forward upper area of the TR. The NPRM proposed to require an inspection to determine the part number of the IFS forward upper fire seal, and applicable on-condition actions. We are issuing this AD to prevent failure of the IFS forward upper fire seal, which causes the loss of seal pressurization and allows fan bypass air to enter the engine core compartment. Fan bypass air entering the engine core compartment could degrade the ability to detect and extinguish an engine fire, resulting in an uncontrolled fire. Furthermore, fan bypass air entering the engine core compartment could cause damage to the TR insulation blanket, resulting in thermal damage to the TR inner wall, the subsequent release of engine exhaust components, and consequent damage to critical areas of the airplane. 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. Support for the NPRM Boeing supported the intent of the NPRM. Request To Include Additional Action An anonymous commenter requested that an additional action be included in the proposed AD. The commenter proposed that Boeing develop an inspection of the thermal blankets and fire seals to ensure the integrity and safe operation of these components. The commenter expressed concern that a thermal blanket could fail due to insufficient sealing by the fire seals that have incorporated the modification mandated by this AD. The modification of the fire seals is specified in Boeing Alert Service Bulletin B787-81205-SB780033-00, Issue 001, dated November 1, 2017 (``BASB B787-81205-SB780033-00, Issue 001''). The commenter stated that the post-modification fire seals are still failing. The commenter is aware of 30 findings of fire seal/ thermal blanket damage across a fleet size of 16 airplanes. The commenter noted that there were 18 findings prior to incorporation of the modification of the fire seals specified in BASB B787-81205- SB780033-00, Issue 001, and 12 findings after incorporation of that modification. The commenter is concerned that the unsafe condition addressed by this AD could still exist after accomplishment of the mandatory modification. We do not agree with the commenter's request. We do not want to delay the publication of this AD by adding a new inspection requirement that will require additional time for public comment. We have determined that the modification of the fire seals required by this AD addresses the design issue of the fire seal end cap that resulted in failure of the IFS forward upper fire seal and damage to the thermal blanket. We are aware of operator reports that damage to the IFS forward upper fire seal and [[Page 34754]] thermal blanket has been discovered on airplanes on which the modification specified in BASB B787-81205-SB780033-00, Issue 001, has been done. The airplane manufacturer is investigating the root cause of this damage and, when the root cause is identified, we may consider further rulemaking at that time. We have not changed this AD in this regard. Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this final rule as proposed, except for 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. Related Service Information Under 1 CFR Part 51 Boeing has issued Boeing Alert Service Bulletin B787-81205- SB780033-00, Issue 001, dated November 1, 2017. This service information describes procedures for an inspection to determine the part number of the IFS forward upper fire seal and applicable on- condition actions. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. Costs of Compliance We estimate that this AD affects 13 airplanes of U.S. registry. We estimate the following costs to comply with this AD: Estimated Costs for Required Actions ---------------------------------------------------------------------------------------------------------------- Cost per Cost on U.S. Action Labor cost Parts cost product operators ---------------------------------------------------------------------------------------------------------------- Inspection......................... 8 work-hours x $85 per hour $0 $680 $8,840 = $680. ---------------------------------------------------------------------------------------------------------------- We estimate the following costs to do any necessary on-condition actions that will be required. We have no way of determining the number of aircraft that might need these on-condition actions: Estimated Costs of On-Condition Actions ---------------------------------------------------------------------------------------------------------------- Cost per Labor cost Parts cost product ---------------------------------------------------------------------------------------------------------------- 8 work-hours x $85 per hour = $680 (fire seal replacement, 4 per airplane).... $4,532 $5,212 ---------------------------------------------------------------------------------------------------------------- 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 transport category airplanes and associated appliances to the Director of the System Oversight 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): 2018-15-03 The Boeing Company: Amendment 39-19335; Docket No. FAA- 2018-0114; Product Identifier 2017-NM-167-AD. (a) Effective Date This AD is effective August 27, 2018. (b) Affected ADs None. [[Page 34755]] (c) Applicability This AD applies to The Boeing Company Model 787 series airplanes, certificated in any category, powered by Rolls Royce Trent 1000 engines. (d) Subject Air Transport Association (ATA) of America Code 78, Engine Exhaust System. (e) Unsafe Condition This AD was prompted by reports of failures of the inner fixed structure (IFS) forward upper fire seal and damage to thermal insulation blankets in the forward upper area of the thrust reverser (TR). We are issuing this AD to prevent failure of the IFS forward upper fire seal, which causes the loss of seal pressurization and allows fan bypass air to enter the engine core compartment. Fan bypass air entering the engine core compartment could degrade the ability to detect and extinguish an engine fire, resulting in an uncontrolled fire. Furthermore, fan bypass air entering the engine core compartment could cause damage to the TR insulation blanket, resulting in thermal damage to the TR inner wall, the subsequent release of engine exhaust components, and consequent damage to critical areas of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions For Model 787-8 and 787-9 series airplanes identified in Boeing Alert Service Bulletin B787-81205-SB780033-00, Issue 001, dated November 1, 2017 (``BASB B787-81205-SB780033-00, Issue 001''): Within 36 months after the effective date of this AD, do all applicable actions identified as ``RC'' (required for compliance) in, and in accordance with, the Accomplishment Instructions of BASB B787-81205-SB780033-00, Issue 001. (h) Parts Installation Prohibition For Model 787 series airplanes powered by Rolls Royce Trent 1000 engines, as of the effective date of this AD, no person may install a thrust reverser with an IFS forward upper fire seal having part number (P/N) 725Z3171-127 or P/N 725Z3171-128. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle ACO 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. Information may be emailed to: [email protected]. (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. (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO Branch, FAA, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (4) For service information that contains steps that are labeled as RC, the provisions of paragraphs (i)(4)(i) and (i)(4)(ii) of this AD apply. (i) The steps labeled as RC, including substeps under an RC step and any figures identified in an RC step, must be done to comply with the AD. If a step or substep is labeled ``RC Exempt,'' then the RC requirement is removed from that step or substep. An AMOC is required for any deviations to RC steps, including substeps and identified figures. (ii) Steps not labeled as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the RC steps, including substeps and identified figures, can still be done as specified, and the airplane can be put back in an airworthy condition. (j) Related Information For more information about this AD, contact Tak Kobayashi, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3553; email: [email protected]. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Boeing Alert Service Bulletin B787-81205-SB780033-00, Issue 001, dated November 1, 2017. (ii) Reserved. (3) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 2600 Westminster Blvd., MC 110 SK57, Seal Beach, CA 90740- 5600; telephone 562-797-1717; internet https://www.myboeingfleet.com. (4) You may view this service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. (5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html. Issued in Des Moines, Washington, on July 13, 2018. Michael Kaszycki, Acting Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2018-15535 Filed 7-20-18; 8:45 am] BILLING CODE 4910-13-P
![34753
Rules and Regulations Federal Register
Vol. 83, No. 141
Monday, July 23, 2018
This section of the FEDERAL REGISTER call 206–231–3195. It is also available resulting in thermal damage to the TR
contains regulatory documents having general on the internet at http:// inner wall, the subsequent release of
applicability and legal effect, most of which www.regulations.gov by searching for engine exhaust components, and
are keyed to and codified in the Code of and locating Docket No. FAA–2018– consequent damage to critical areas of
Federal Regulations, which is published under 0114. the airplane.
50 titles pursuant to 44 U.S.C. 1510.
Examining the AD Docket Comments
The Code of Federal Regulations is sold by
the Superintendent of Documents. You may examine the AD docket on We gave the public the opportunity to
the internet at http:// participate in developing this final rule.
www.regulations.gov by searching for The following presents the comments
DEPARTMENT OF TRANSPORTATION and locating Docket No. FAA–2018– received on the NPRM and the FAA’s
0114; or in person at Docket Operations response to each comment.
Federal Aviation Administration between 9 a.m. and 5 p.m., Monday Support for the NPRM
through Friday, except Federal holidays.
14 CFR Part 39 The AD docket contains this final rule, Boeing supported the intent of the
the regulatory evaluation, any NPRM.
[Docket No. FAA–2018–0114; Product
Identifier 2017–NM–167–AD; Amendment comments received, and other Request To Include Additional Action
39–19335; AD 2018–15–03] information. The address for Docket An anonymous commenter requested
RIN 2120–AA64
Operations (phone: 800–647–5527) is that an additional action be included in
Docket Operations, U.S. Department of the proposed AD. The commenter
Airworthiness Directives; The Boeing Transportation, Docket Operations, proposed that Boeing develop an
Company Airplanes M–30, West Building Ground Floor, inspection of the thermal blankets and
Room W12–140, 1200 New Jersey fire seals to ensure the integrity and safe
AGENCY: Federal Aviation Avenue SE, Washington, DC 20590.
Administration (FAA), DOT. operation of these components. The
FOR FURTHER INFORMATION CONTACT: Tak commenter expressed concern that a
ACTION: Final rule. Kobayashi, Aerospace Engineer, thermal blanket could fail due to
Propulsion Section, FAA, Seattle ACO insufficient sealing by the fire seals that
SUMMARY: We are adopting a new
Branch, 2200 South 216th St., Des have incorporated the modification
airworthiness directive (AD) for The
Moines, WA; phone: 206–231–3553; mandated by this AD. The modification
Boeing Company Model 787 series
email: Takahisa.Kobayashi@faa.gov. of the fire seals is specified in Boeing
airplanes powered by Rolls Royce Trent
1000 engines. This AD was prompted by SUPPLEMENTARY INFORMATION: Alert Service Bulletin B787–81205–
a report of failures of the inner fixed SB780033–00, Issue 001, dated
Discussion
structure (IFS) forward upper fire seal November 1, 2017 (‘‘BASB B787–
and damage to thermal insulation We issued a notice of proposed 81205–SB780033–00, Issue 001’’).
blankets in the forward upper area of rulemaking (NPRM) to amend 14 CFR The commenter stated that the post-
the thrust reverser (TR). This AD part 39 by adding an AD that would modification fire seals are still failing.
requires an inspection to determine the apply to The Boeing Company Model The commenter is aware of 30 findings
part number of the IFS forward upper 787 series airplanes powered by Rolls of fire seal/thermal blanket damage
fire seal, and applicable on-condition Royce Trent 1000 engines. The NPRM across a fleet size of 16 airplanes. The
actions. We are issuing this AD to published in the Federal Register on commenter noted that there were 18
address the unsafe condition on these February 23, 2018 (83 FR 8017). The findings prior to incorporation of the
products. NPRM was prompted by reports of modification of the fire seals specified
failures of the IFS forward upper fire in BASB B787–81205–SB780033–00,
DATES: This AD is effective August 27, seal and damage to thermal insulation Issue 001, and 12 findings after
2018. blankets in the forward upper area of incorporation of that modification. The
The Director of the Federal Register the TR. The NPRM proposed to require commenter is concerned that the unsafe
approved the incorporation by reference an inspection to determine the part condition addressed by this AD could
of a certain publication listed in this AD number of the IFS forward upper fire still exist after accomplishment of the
as of August 27, 2018. seal, and applicable on-condition mandatory modification.
ADDRESSES: For service information actions. We do not agree with the commenter’s
identified in this final rule, contact We are issuing this AD to prevent request. We do not want to delay the
Boeing Commercial Airplanes, failure of the IFS forward upper fire publication of this AD by adding a new
Attention: Contractual & Data Services seal, which causes the loss of seal inspection requirement that will require
(C&DS), 2600 Westminster Blvd., MC pressurization and allows fan bypass air additional time for public comment. We
110–SK57, Seal Beach, CA 90740–5600; to enter the engine core compartment. have determined that the modification
telephone 562–797–1717; internet Fan bypass air entering the engine core of the fire seals required by this AD
amozie on DSK3GDR082PROD with RULES
https://www.myboeingfleet.com. You compartment could degrade the ability addresses the design issue of the fire
may view this referenced service to detect and extinguish an engine fire, seal end cap that resulted in failure of
information at the FAA, Transport resulting in an uncontrolled fire. the IFS forward upper fire seal and
Standards Branch, 2200 South 216th St., Furthermore, fan bypass air entering the damage to the thermal blanket. We are
Des Moines, WA. For information on the engine core compartment could cause aware of operator reports that damage to
availability of this material at the FAA, damage to the TR insulation blanket, the IFS forward upper fire seal and
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![34754 Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations
thermal blanket has been discovered on final rule as proposed, except for minor information describes procedures for an
airplanes on which the modification editorial changes. We have determined inspection to determine the part number
specified in BASB B787–81205– that these minor changes: of the IFS forward upper fire seal and
SB780033–00, Issue 001, has been done. • Are consistent with the intent that applicable on-condition actions. This
The airplane manufacturer is was proposed in the NPRM for service information is reasonably
investigating the root cause of this addressing the unsafe condition; and available because the interested parties
damage and, when the root cause is • Do not add any additional burden have access to it through their normal
identified, we may consider further upon the public than was already course of business or by the means
rulemaking at that time. We have not proposed in the NPRM. identified in the ADDRESSES section.
changed this AD in this regard. Related Service Information Under
Costs of Compliance
Conclusion 1 CFR Part 51
We reviewed the relevant data, Boeing has issued Boeing Alert We estimate that this AD affects 13
considered the comments received, and Service Bulletin B787–81205– airplanes of U.S. registry. We estimate
determined that air safety and the SB780033–00, Issue 001, dated the following costs to comply with this
public interest require adopting this November 1, 2017. This service AD:
ESTIMATED COSTS FOR REQUIRED ACTIONS
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
Inspection ................................ 8 work-hours × $85 per hour = $680 ..................................... $0 $680 $8,840
We estimate the following costs to do determining the number of aircraft that
any necessary on-condition actions that might need these on-condition actions:
will be required. We have no way of
ESTIMATED COSTS OF ON-CONDITION ACTIONS
Cost per
Labor cost Parts cost product
8 work-hours × $85 per hour = $680 (fire seal replacement, 4 per airplane) ........................................................ $4,532 $5,212
Authority for This Rulemaking period, the Executive Director has List of Subjects in 14 CFR Part 39
Title 49 of the United States Code delegated the authority to issue ADs
applicable to transport category Air transportation, Aircraft, Aviation
specifies the FAA’s authority to issue safety, Incorporation by reference,
rules on aviation safety. Subtitle I, airplanes and associated appliances to
the Director of the System Oversight Safety.
section 106, describes the authority of
the FAA Administrator. Subtitle VII: Division. Adoption of the Amendment
Aviation Programs, describes in more Regulatory Findings Accordingly, under the authority
detail the scope of the Agency’s delegated to me by the Administrator,
authority. This AD will not have federalism
implications under Executive Order the FAA amends 14 CFR part 39 as
We are issuing this rulemaking under follows:
the authority described in Subtitle VII, 13132. This AD will not have a
Part A, Subpart III, Section 44701: substantial direct effect on the States, on
PART 39—AIRWORTHINESS
‘‘General requirements.’’ Under that the relationship between the national
DIRECTIVES
section, Congress charges the FAA with government and the States, or on the
promoting safe flight of civil aircraft in distribution of power and
■ 1. The authority citation for part 39
air commerce by prescribing regulations responsibilities among the various
continues to read as follows:
for practices, methods, and procedures levels of government.
Authority: 49 U.S.C. 106(g), 40113, 44701.
the Administrator finds necessary for For the reasons discussed above, I
safety in air commerce. This regulation certify that this AD: § 39.13 [Amended]
is within the scope of that authority (1) Is not a ‘‘significant regulatory
because it addresses an unsafe condition action’’ under Executive Order 12866, ■ 2. The FAA amends § 39.13 by adding
that is likely to exist or develop on the following new airworthiness
(2) Is not a ‘‘significant rule’’ under directive (AD):
products identified in this rulemaking
DOT Regulatory Policies and Procedures
action. 2018–15–03 The Boeing Company:
(44 FR 11034, February 26, 1979),
This AD is issued in accordance with Amendment 39–19335; Docket No.
authority delegated by the Executive (3) Will not affect intrastate aviation FAA–2018–0114; Product Identifier
amozie on DSK3GDR082PROD with RULES
Director, Aircraft Certification Service, in Alaska, and 2017–NM–167–AD.
as authorized by FAA Order 8000.51C. (4) Will not have a significant (a) Effective Date
In accordance with that order, issuance economic impact, positive or negative, This AD is effective August 27, 2018.
of ADs is normally a function of the on a substantial number of small entities
Compliance and Airworthiness under the criteria of the Regulatory (b) Affected ADs
Division, but during this transition Flexibility Act. None.
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(c) Applicability (3) An AMOC that provides an acceptable Issued in Des Moines, Washington, on July
This AD applies to The Boeing Company level of safety may be used for any repair, 13, 2018.
Model 787 series airplanes, certificated in modification, or alteration required by this Michael Kaszycki,
any category, powered by Rolls Royce Trent AD if it is approved by the Boeing Acting Director, System Oversight Division,
1000 engines. Commercial Airplanes Organization Aircraft Certification Service.
Designation Authorization (ODA) that has
(d) Subject [FR Doc. 2018–15535 Filed 7–20–18; 8:45 am]
been authorized by the Manager, Seattle ACO
Air Transport Association (ATA) of Branch, FAA, to make those findings. To be BILLING CODE 4910–13–P
America Code 78, Engine Exhaust System. approved, the repair method, modification
(e) Unsafe Condition deviation, or alteration deviation must meet
the certification basis of the airplane, and the DEPARTMENT OF TRANSPORTATION
This AD was prompted by reports of approval must specifically refer to this AD.
failures of the inner fixed structure (IFS) (4) For service information that contains Federal Aviation Administration
forward upper fire seal and damage to steps that are labeled as RC, the provisions
thermal insulation blankets in the forward of paragraphs (i)(4)(i) and (i)(4)(ii) of this AD 14 CFR Part 39
upper area of the thrust reverser (TR). We are
apply.
issuing this AD to prevent failure of the IFS [Docket No. FAA–2017–1237; Product
(i) The steps labeled as RC, including
forward upper fire seal, which causes the loss Identifier 2017–NE–43–AD; Amendment 39–
substeps under an RC step and any figures
of seal pressurization and allows fan bypass 19333; AD 2018–15–01]
air to enter the engine core compartment. Fan identified in an RC step, must be done to
bypass air entering the engine core comply with the AD. If a step or substep is RIN 2120–AA64
compartment could degrade the ability to labeled ‘‘RC Exempt,’’ then the RC
detect and extinguish an engine fire, requirement is removed from that step or Airworthiness Directives; Rolls-Royce
resulting in an uncontrolled fire. substep. An AMOC is required for any plc Turbofan Engines
Furthermore, fan bypass air entering the deviations to RC steps, including substeps
engine core compartment could cause and identified figures. AGENCY: Federal Aviation
damage to the TR insulation blanket, (ii) Steps not labeled as RC may be Administration (FAA), DOT.
resulting in thermal damage to the TR inner deviated from using accepted methods in ACTION: Final rule; request for
wall, the subsequent release of engine accordance with the operator’s maintenance
comments.
exhaust components, and consequent damage or inspection program without obtaining
to critical areas of the airplane. approval of an AMOC, provided the RC steps, SUMMARY: We are adopting a new
including substeps and identified figures, can
(f) Compliance airworthiness directive (AD) for certain
still be done as specified, and the airplane
Comply with this AD within the can be put back in an airworthy condition. Rolls-Royce plc (RR) Trent 1000–A,
compliance times specified, unless already Trent 1000–C, Trent 1000–D, Trent
done. (j) Related Information 1000–E, Trent 1000–G, Trent 1000–H,
For more information about this AD, Trent 1000–A2, Trent 1000–C2, Trent
(g) Required Actions contact Tak Kobayashi, Aerospace Engineer, 1000–D2, Trent 1000–E2, Trent 1000–
For Model 787–8 and 787–9 series Propulsion Section, FAA, Seattle ACO G2, Trent 1000–H2, Trent 1000–J2,
airplanes identified in Boeing Alert Service Branch, 2200 South 216th St., Des Moines, Trent 1000–K2, and Trent 1000–L2
Bulletin B787–81205–SB780033–00, Issue WA 98198; phone: 206–231–3553; email:
001, dated November 1, 2017 (‘‘BASB B787–
engine models. This AD requires certain
Takahisa.Kobayashi@faa.gov.
81205–SB780033–00, Issue 001’’): Within 36 engines susceptible to intermediate-
months after the effective date of this AD, do (k) Material Incorporated by Reference pressure turbine (IPT) blade failure not
all applicable actions identified as ‘‘RC’’ (1) The Director of the Federal Register be installed on an airplane together with
(required for compliance) in, and in approved the incorporation by reference other engines with IPT blades of the
accordance with, the Accomplishment (IBR) of the service information listed in this same age. This AD was prompted by
Instructions of BASB B787–81205– paragraph under 5 U.S.C. 552(a) and 1 CFR new operating restrictions for engines
SB780033–00, Issue 001. part 51. with IPT blades susceptible to shank
(h) Parts Installation Prohibition (2) You must use this service information corrosion and possible blade separation.
as applicable to do the actions required by We are issuing this AD to address the
For Model 787 series airplanes powered by this AD, unless the AD specifies otherwise.
Rolls Royce Trent 1000 engines, as of the (i) Boeing Alert Service Bulletin B787–
unsafe condition on these products.
effective date of this AD, no person may 81205–SB780033–00, Issue 001, dated DATES: This AD is effective August 7,
install a thrust reverser with an IFS forward November 1, 2017. 2018.
upper fire seal having part number (P/N) (ii) Reserved. The Director of the Federal Register
725Z3171–127 or P/N 725Z3171–128.
(3) For service information identified in approved the incorporation by reference
(i) Alternative Methods of Compliance this AD, contact Boeing Commercial of certain publications listed in this AD
(AMOCs) Airplanes, Attention: Contractual & Data as of August 7, 2018.
(1) The Manager, Seattle ACO Branch, Services (C&DS), 2600 Westminster Blvd., We must receive comments on this
FAA, has the authority to approve AMOCs MC 110 SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; internet https://
AD by September 6, 2018.
for this AD, if requested using the procedures
www.myboeingfleet.com. ADDRESSES: You may send comments,
found in 14 CFR 39.19. In accordance with
14 CFR 39.19, send your request to your (4) You may view this service information using the procedures found in 14 CFR
principal inspector or local Flight Standards at the FAA, Transport Standards Branch, 11.43 and 11.45, by any of the following
District Office, as appropriate. If sending 2200 South 216th St., Des Moines, WA. For methods:
information directly to the manager of the information on the availability of this • Federal eRulemaking Portal: Go to
certification office, send it to the attention of material at the FAA, call 206–231–3195. http://www.regulations.gov. Follow the
the person identified in paragraph (j) of this (5) You may view this service information
instructions for submitting comments.
amozie on DSK3GDR082PROD with RULES
AD. Information may be emailed to: 9-ANM- that is incorporated by reference at the
National Archives and Records
• Fax: 202–493–2251.
Seattle-ACO-AMOC-Requests@faa.gov.
(2) Before using any approved AMOC, Administration (NARA). For information on • Mail: U.S. Department of
notify your appropriate principal inspector, the availability of this material at NARA, call Transportation, Docket Operations,
or lacking a principal inspector, the manager 202–741–6030, or go to: http:// M–30, West Building Ground Floor,
of the local flight standards district office/ www.archives.gov/federal-register/cfr/ibr- Room W12–140, 1200 New Jersey
certificate holding district office. locations.html. Avenue SE, Washington, DC 20590.
VerDate Sep<11>2014 16:12 Jul 20, 2018 Jkt 244001 PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 E:\FR\FM\23JYR1.SGM 23JYR1](https://thefederalregister.org/doc/83_FR_34894/page/3.svg)
Document Created: 2018-07-21 00:48:49
Document Modified: 2018-07-21 00:48:49
| 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 August 27, 2018. | |
| Contact | Tak Kobayashi, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA; phone: 206-231-3553; email: [email protected] | |
| FR Citation | 83 FR 34753 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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