81 FR 90955 - Airworthiness Directives; The Boeing Company Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 81, Issue 242 (December 16, 2016)
Federal Aviation Administration
Federal Register Volume 81, Issue 242 (December 16, 2016)
| Page Range | 90955-90958 | |
| FR Document | 2016-29251 |
[Federal Register Volume 81, Number 242 (Friday, December 16, 2016)] [Rules and Regulations] [Pages 90955-90958] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2016-29251] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2015-3142; Directorate Identifier 2015-NM-003-AD; Amendment 39-18725; AD 2016-25-02] 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 certain The Boeing Company Model 787-8 airplanes. This AD was prompted by reports of the accumulation of very fine particle deposits in the power control unit (PCU) electro-hydraulic servo valves (EHSVs) used in the flight control system; this accumulation caused degraded performance due to reduced EHSV internal hydraulic supply pressures, resulting in the display of PCU fault status messages from the engine indication and crew alerting system (EICAS). This AD requires installing markers to limit the hydraulic system fluid used to a specific brand, doing hydraulic fluid tests of the hydraulic systems, replacing hydraulic system fluid if necessary, and doing all applicable related investigative and corrective actions. We are issuing this AD to address the unsafe condition on these products. DATES: This AD is effective January 20, 2017. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of January 20, 2017. 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; telephone 562-797-1717; Internet https://www.myboeingfleet.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-3142. 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-2015- 3142; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (phone: 800-647- 5527) is Docket 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: Fnu Winarto, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057- 3356; phone: 425-917-6659; fax: 425-917-6590; 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 certain The Boeing Company Model 787-8 airplanes. The NPRM published in the Federal Register on August 19, 2015 (80 FR 50233) (``the NPRM''). The NPRM was prompted by reports of the accumulation of very fine particle deposits in the PCU EHSVs used in the flight control system; this accumulation caused degraded performance due to reduced EHSV internal hydraulic supply pressures, resulting in the display of PCU fault status messages from the EICAS. The NPRM proposed to require installing markers to limit the hydraulic system fluid used to a specific brand, doing hydraulic fluid tests of the hydraulic systems, replacing hydraulic system fluid if necessary, and doing all applicable related investigative and corrective actions. We are issuing this AD to prevent the failure of flight control hydraulic PCUs, which could lead to reduced controllability of the airplane. Comments We gave the public the opportunity to participate in developing this AD. The following presents the comments received on the NPRM and the FAA's response to each comment. Request To Refer to Revised Service Information United Airlines (UAL) stated that there are many errors, omissions, and inconsistencies in Boeing Alert Service Bulletin B787-81205- SB270026-00, Issue 001, dated November 25, 2014, and provided examples of those mistakes. UAL asked that this service information be revised to correct these problems. Boeing has issued Boeing Alert Service Bulletin B787-81205- SB270026-00, Issue 002, dated June 13, 2016. The revised service information corrects typographical errors and makes clarifications to the Accomplishment Instructions in Boeing Alert Service Bulletin B787- 81205-SB270026-00, Issue 001, dated November 25, 2014. We have included Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 002, dated June 13, 2016, in paragraphs (c) and (h) of this AD. We have also included a new paragraph (i) in this AD to provide credit for actions done prior to the effective date of this AD using Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 001, dated November 25, 2014. The subsequent paragraphs have been redesignated accordingly. Request To Clarify the Reason for the Unsafe Condition Boeing asked that we remove all references to hydraulic fluid contamination causing EHSV restriction, in the SUMMARY, the Discussion section of the NPRM, and paragraph (e) of the proposed AD. Boeing stated that the issue is not hydraulic fluid contamination causing EHSV restriction, but the accumulation of very fine particle deposits within the EHSV causing degraded performance due to reduced EHSV internal hydraulic supply pressures. Boeing added that the solution is to change the hydraulic fluid to a specific brand, considering that it has been verified to significantly reduce the rate of accumulation of particles in the EHSVs. Boeing concluded that this would clarify the cause of the EICAS messages. We agree that the reason for the unsafe condition should be clarified, for the reasons provided. Therefore, we have removed the references to hydraulic fluid contamination causing EHSV restriction and replaced that language with a more accurate reason for the unsafe condition in the SUMMARY, the Discussion section of the final rule, and paragraph (e) of this AD. [[Page 90956]] Request To Issue Global Alternative Method of Compliance (AMOC) UAL asked that a fleet-wide AMOC be issued for Boeing Service Bulletin B787-81205-SB290022-00, Issue 001, dated September 4, 2014, to correct a part number (P/N) reference. Task 1, Figure 1, and Task 2, Figure 1, of Boeing Service Bulletin B787-81205-SB290022-00, Issue 001, dated September 4, 2014, identify P/N 710Z7290-9##ALT1 for the left and right engine diagonal braces; however, the correct P/N is 710Z7290-9 with no ##ALT suffix. UAL stated that the correct part number is identified in the Illustrated Parts Catalog (IPC). We acknowledge the commenter's concern that an incorrect part number for the left and right engine diagonal braces is identified in Boeing Service Bulletin B787-81205-SB290022-00, Issue 001, dated September 4, 2014. We have discussed this error with Boeing, and it was confirmed that the part number in the IPC (as noted by UAL) is correct and should be used. In light of this information, we do not agree that a global AMOC should be issued. However, we have added a new Note 2 to paragraph (g) of this AD to clarify the correct part number. Request To Change Certain Instructions in the Service Information UAL stated that Boeing Service Bulletin B787-81205-SB290022-00, Issue 001, dated September 4, 2014, includes procedures for the HyJet V marker installation, which is a ``Required for Compliance (RC)'' item in Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 001, dated November 25, 2014, and must be done before or concurrently with that service information. UAL noted that there is no RC language in Boeing Service Bulletin B787-81205-SB290022-00, Issue 001, dated September 4, 2014, which makes the entire service bulletin ``RC.'' UAL asked that the steps that specify access and close be marked as non-RC steps. We do not agree to change Boeing Service Bulletin B787-81205- SB290022-00, Issue 001, dated September 4, 2014, to mark the steps RC and non-RC. However, we do agree to clarify the steps that are required to accomplish the marker installation. Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 001, dated November 25, 2014, has an RC step that specifies to install markers. That RC step does not specify to perform access and close steps for the marker installation; therefore those access and close steps are not required by this AD. We have not changed this AD in this regard. UAL also asked we change the procedures in Part 4 of Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 001, dated November 25, 2014, which specify options for either replacing the hydraulic fluid again, or draining and filling the hydraulic reservoir. UAL stated that if either option is used, then Part 2 of the service information titled ``Cycle Hydraulic Fluid'' must again be done, or the airplane must be flown at least one flight cycle, and then a sample drawn for testing. UAL added that this procedure, done in accordance with the instructions in the referenced service information, results in excessive cycling if the operator needs to only replace a small amount of fluid and chooses the reservoir drain-and-fill option. UAL asked to use a procedure that would specify draining and filling the reservoir, flight control cycling, and taking a fresh sample for testing, all at the same time. UAL noted that Option 10 specifies ``Drain and Fill Hydraulic Reservoir'' and is acceptable to operate the flight controls six to eight times to let the fluid flow through all the systems. UAL stated that this is the procedure used by Boeing before taking fluid samples per the Boeing 787 Airplane Maintenance Manual. We do not agree to change the procedure for servicing the hydraulic fluid. Although UAL's proposal is an accepted procedure in the Boeing 787 Airplane Maintenance Manual, this procedure does not include operating the other hydraulic-powered subsystems, such as the landing gear, thrust reverser, and brakes. Subsequently, it could result in stagnant fluid measurements not intermixing with other hydraulic system fluid following replacement of the hydraulic system fluid, and could generate fluid test samples that do not include the entire system. In light of these factors, we have not changed this AD in this regard. Clarification to Paragraph (g) of This AD We have added a new Note 1 to paragraph (g) of this AD to refer to Boeing Service Bulletin B787-81205-SB290022-00, Issue 001, dated September 4, 2014, as an additional source of guidance for installing markers to allow servicing of hydraulic systems with only HyJet V hydraulic fluid. Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this AD with the changes described previously and minor editorial changes. We have determined that these minor changes:Are consistent with the intent that was proposed in the NPRM for correcting 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 AD. Related Service Information Under 1 CFR Part 51 We have reviewed Boeing Alert Service Bulletin B787-81205-SB270026- 00, Issue 002, dated June 13, 2016. This service information describes procedures for installing markers to limit the hydraulic system fluid used to a specific brand; doing hydraulic fluid tests of the hydraulic systems, replacing the hydraulic system fluid if necessary, and related investigative and corrective 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 11 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 ---------------------------------------------------------------------------------------------------------------- Install markers....................... 2 work-hours x $85 per $95 $265 $2,915 hour = $170. Test and replace left, center, and 104 work-hours x $85 per 1,020 9,860 108,460 right hydraulic system fluid. hour = $8,840. ---------------------------------------------------------------------------------------------------------------- [[Page 90957]] We estimate the following costs to do any necessary replacements that may be required based on the results of the 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 ---------------------------------------------------------------------------------------------------------------- Replace power control unit of elevator........ 9 x $85 per hour = $765......... $108,000 $108,765 Replace power control unit of aileron......... 9 x $85 per hour = $765......... 118,000 118,765 ---------------------------------------------------------------------------------------------------------------- According to the manufacturer, some of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty coverage for affected individuals. As a result, we have included all costs in our cost estimate. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency's authority. We are issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: ``General requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: (1) Is not a ``significant regulatory action'' under Executive Order 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, 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): 2016-25-02 The Boeing Company: Amendment 39-18725; Docket No. FAA- 2015-3142; Directorate Identifier 2015-NM-003-AD. (a) Effective Date This AD is effective January 20, 2017. (b) Affected ADs None. (c) Applicability This AD applies to The Boeing Company Model 787-8 series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 002, dated June 13, 2016. (d) Subject Air Transport Association (ATA) of America Code 27, Flight Control Systems. (e) Unsafe Condition This AD was prompted by reports of the accumulation of very fine particle deposits in the power control unit (PCU) electro-hydraulic servo valves (EHSVs) used in the flight control system; this accumulation caused degraded performance due to reduced EHSV internal hydraulic supply pressures, resulting in the display of PCU fault status messages from the engine indication and crew alerting system (EICAS). We are issuing this AD to prevent failure of flight control hydraulic PCUs, which could lead to reduced controllability of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Marker Installation Within 36 months after the effective date of this AD, install markers to allow servicing of hydraulic systems with only HyJet V hydraulic fluid, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 002, dated June 13, 2016. Note 1 to paragraph (g) of this AD: Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 002, dated June 13, 2016, refers to Boeing Service Bulletin B787-81205-SB290022-00, Issue 001, dated September 4, 2014, as an additional source of guidance for installing markers to allow servicing of hydraulic systems with only HyJet V hydraulic fluid. Note 2 to paragraph (g) of this AD: Task 1, Figure 1, and Task 2, Figure 1, of Boeing Service Bulletin B787-81205-SB290022-00, Issue 001, dated September 4, 2014, identify P/N 710Z7290-9##ALT1 for the left and right engine diagonal braces; however, the correct P/N is 710Z7290-9 with no ##ALT suffix. (h) Fluid Tests of the Left, Right, and Center Hydraulic Systems For airplanes identified in Boeing Alert Service Bulletin B787- 81205-SB270026-00, Issue 002, dated June 13, 2016, as Group 1, Configuration 2, Group 2: Within 36 months after the effective date of this AD, do hydraulic fluid tests of the left, right, and center hydraulic systems, replace the hydraulic system fluid, if necessary, and do all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 002, dated June 13, 2016. Do all applicable related investigative and corrective actions within 36 months after the effective date of this AD. (i) Credit for Previous Actions This paragraph provides credit for the actions required by paragraphs (g) and (h) of this AD, if those actions were performed before the effective date of this AD using Boeing Alert Service Bulletin B787-81205-SB270026-00, Issue 001, dated November 25, 2014. (j) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if [[Page 90958]] 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 ACO, send it to the attention of the person identified in paragraph (k)(1) 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) For service information that contains steps that are labeled as Required for Compliance (RC), the provisions of paragraphs (j)(3)(i) and (j)(3)(ii) 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 sub-step is labeled ``RC Exempt,'' then the RC requirement is removed from that step or sub-step. 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. (4) An AMOC that provides an acceptable level of safety may be used for any repair 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 to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (k) Related Information (1) For more information about this AD, contact Fnu Winarto, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle ACO, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6659; fax: 425-917-6590; email: [email protected]. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (l)(3) and (l)(4) of this AD. (l) 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-SB270026-00, Issue 002, dated June 13, 2016. (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; telephone 562-797-1717; Internet https://www.myboeingfleet.com. (4) You may view this service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. (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 Renton, Washington, on November 25, 2016. John P. Piccola, Jr., Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016-29251 Filed 12-15-16; 8:45 am] BILLING CODE 4910-13-P
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By order of the Board of Governors of the FAA, call 425–227–1221. It is also following presents the comments
Federal Reserve System, December 9, 2016. available on the Internet at http:// received on the NPRM and the FAA’s
Robert deV. Frierson, www.regulations.gov by searching for response to each comment.
Secretary of the Board. and locating Docket No. FAA–2015–
Request To Refer to Revised Service
[FR Doc. 2016–29966 Filed 12–14–16; 11:15 am] 3142. Information
BILLING CODE P Examining the AD Docket United Airlines (UAL) stated that
You may examine the AD docket on there are many errors, omissions, and
the Internet at http:// inconsistencies in Boeing Alert Service
DEPARTMENT OF TRANSPORTATION Bulletin B787–81205–SB270026–00,
www.regulations.gov by searching for
Federal Aviation Administration and locating Docket No. FAA–2015– Issue 001, dated November 25, 2014,
3142; or in person at the Docket and provided examples of those
14 CFR Part 39 Management Facility between 9 a.m. mistakes. UAL asked that this service
and 5 p.m., Monday through Friday, information be revised to correct these
[Docket No. FAA–2015–3142; Directorate except Federal holidays. The AD docket problems.
Identifier 2015–NM–003–AD; Amendment Boeing has issued Boeing Alert
contains this AD, the regulatory
39–18725; AD 2016–25–02] Service Bulletin B787–81205–
evaluation, any comments received, and
RIN 2120–AA64 other information. The address for the SB270026–00, Issue 002, dated June 13,
Docket Office (phone: 800–647–5527) is 2016. The revised service information
Airworthiness Directives; The Boeing Docket Management Facility, U.S. corrects typographical errors and makes
Company Airplanes Department of Transportation, Docket clarifications to the Accomplishment
Operations, M–30, West Building Instructions in Boeing Alert Service
AGENCY: Federal Aviation Bulletin B787–81205–SB270026–00,
Administration (FAA), DOT. Ground Floor, Room W12–140, 1200
New Jersey Avenue SE., Washington, Issue 001, dated November 25, 2014. We
ACTION: Final rule. have included Boeing Alert Service
DC 20590.
SUMMARY: We are adopting a new Bulletin B787–81205–SB270026–00,
FOR FURTHER INFORMATION CONTACT: Fnu
Issue 002, dated June 13, 2016, in
airworthiness directive (AD) for certain Winarto, Aerospace Engineer, Systems paragraphs (c) and (h) of this AD. We
The Boeing Company Model 787–8 and Equipment Branch, ANM–130S, have also included a new paragraph (i)
airplanes. This AD was prompted by FAA, Seattle Aircraft Certification in this AD to provide credit for actions
reports of the accumulation of very fine Office (ACO), 1601 Lind Avenue SW., done prior to the effective date of this
particle deposits in the power control Renton, WA 98057–3356; phone: 425– AD using Boeing Alert Service Bulletin
unit (PCU) electro-hydraulic servo 917–6659; fax: 425–917–6590; email: B787–81205–SB270026–00, Issue 001,
valves (EHSVs) used in the flight control fnu.winarto@faa.gov. dated November 25, 2014. The
system; this accumulation caused
SUPPLEMENTARY INFORMATION: subsequent paragraphs have been
degraded performance due to reduced
redesignated accordingly.
EHSV internal hydraulic supply Discussion
pressures, resulting in the display of We issued a notice of proposed Request To Clarify the Reason for the
PCU fault status messages from the rulemaking (NPRM) to amend 14 CFR Unsafe Condition
engine indication and crew alerting part 39 by adding an AD that would Boeing asked that we remove all
system (EICAS). This AD requires apply to certain The Boeing Company references to hydraulic fluid
installing markers to limit the hydraulic Model 787–8 airplanes. The NPRM contamination causing EHSV
system fluid used to a specific brand, published in the Federal Register on restriction, in the SUMMARY, the
doing hydraulic fluid tests of the August 19, 2015 (80 FR 50233) (‘‘the Discussion section of the NPRM, and
hydraulic systems, replacing hydraulic NPRM’’). The NPRM was prompted by paragraph (e) of the proposed AD.
system fluid if necessary, and doing all reports of the accumulation of very fine Boeing stated that the issue is not
applicable related investigative and particle deposits in the PCU EHSVs hydraulic fluid contamination causing
corrective actions. We are issuing this used in the flight control system; this EHSV restriction, but the accumulation
AD to address the unsafe condition on accumulation caused degraded of very fine particle deposits within the
these products. performance due to reduced EHSV EHSV causing degraded performance
DATES: This AD is effective January 20, internal hydraulic supply pressures, due to reduced EHSV internal hydraulic
2017. resulting in the display of PCU fault supply pressures. Boeing added that the
The Director of the Federal Register status messages from the EICAS. The solution is to change the hydraulic fluid
approved the incorporation by reference NPRM proposed to require installing to a specific brand, considering that it
of a certain publication listed in this AD markers to limit the hydraulic system has been verified to significantly reduce
as of January 20, 2017. fluid used to a specific brand, doing the rate of accumulation of particles in
ADDRESSES: For service information hydraulic fluid tests of the hydraulic the EHSVs. Boeing concluded that this
identified in this final rule, contact systems, replacing hydraulic system would clarify the cause of the EICAS
Boeing Commercial Airplanes, fluid if necessary, and doing all messages.
Attention: Contractual & Data Services applicable related investigative and We agree that the reason for the
(C&DS), 2600 Westminster Blvd., MC corrective actions. We are issuing this unsafe condition should be clarified, for
asabaliauskas on DSK3SPTVN1PROD with RULES
110–SK57, Seal Beach, CA 90740; AD to prevent the failure of flight the reasons provided. Therefore, we
telephone 562–797–1717; Internet control hydraulic PCUs, which could have removed the references to
https://www.myboeingfleet.com. You lead to reduced controllability of the hydraulic fluid contamination causing
may view this referenced service airplane. EHSV restriction and replaced that
information at the FAA, Transport language with a more accurate reason
Airplane Directorate, 1601 Lind Avenue Comments for the unsafe condition in the SUMMARY,
SW., Renton, WA. For information on We gave the public the opportunity to the Discussion section of the final rule,
the availability of this material at the participate in developing this AD. The and paragraph (e) of this AD.
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We estimate the following costs to do required based on the results of the determining the number of aircraft that
any necessary replacements that may be inspection. We have no way of might need these replacements:
ON-CONDITION COSTS
Cost per
Action Labor cost Parts cost product
Replace power control unit of elevator ........................ 9 × $85 per hour = $765 .............................................. $108,000 $108,765
Replace power control unit of aileron .......................... 9 × $85 per hour = $765 .............................................. 118,000 118,765
According to the manufacturer, some List of Subjects in 14 CFR Part 39 (f) Compliance
of the costs of this AD may be covered Comply with this AD within the
under warranty, thereby reducing the Air transportation, Aircraft, Aviation compliance times specified, unless already
cost impact on affected individuals. We safety, Incorporation by reference, done.
do not control warranty coverage for Safety.
(g) Marker Installation
affected individuals. As a result, we Adoption of the Amendment Within 36 months after the effective date
have included all costs in our cost of this AD, install markers to allow servicing
estimate. Accordingly, under the authority of hydraulic systems with only HyJet V
Authority for This Rulemaking delegated to me by the Administrator, hydraulic fluid, in accordance with the
the FAA amends 14 CFR part 39 as Accomplishment Instructions of Boeing Alert
Title 49 of the United States Code follows: Service Bulletin B787–81205–SB270026–00,
specifies the FAA’s authority to issue Issue 002, dated June 13, 2016.
rules on aviation safety. Subtitle I, PART 39—AIRWORTHINESS Note 1 to paragraph (g) of this AD: Boeing
section 106, describes the authority of DIRECTIVES Alert Service Bulletin B787–81205–
the FAA Administrator. Subtitle VII: SB270026–00, Issue 002, dated June 13, 2016,
Aviation Programs, describes in more refers to Boeing Service Bulletin B787–
■ 1. The authority citation for part 39
detail the scope of the Agency’s 81205–SB290022–00, Issue 001, dated
continues to read as follows: September 4, 2014, as an additional source of
authority.
Authority: 49 U.S.C. 106(g), 40113, 44701. guidance for installing markers to allow
We are issuing this rulemaking under
servicing of hydraulic systems with only
the authority described in Subtitle VII, § 39.13 [Amended] HyJet V hydraulic fluid.
Part A, Subpart III, Section 44701:
‘‘General requirements.’’ Under that ■ 2. The FAA amends § 39.13 by adding Note 2 to paragraph (g) of this AD: Task
1, Figure 1, and Task 2, Figure 1, of Boeing
section, Congress charges the FAA with the following new airworthiness Service Bulletin B787–81205–SB290022–00,
promoting safe flight of civil aircraft in directive (AD): Issue 001, dated September 4, 2014, identify
air commerce by prescribing regulations 2016–25–02 The Boeing Company: P/N 710Z7290–9##ALT1 for the left and right
for practices, methods, and procedures Amendment 39–18725; Docket No. engine diagonal braces; however, the correct
the Administrator finds necessary for FAA–2015–3142; Directorate Identifier P/N is 710Z7290–9 with no ##ALT suffix.
safety in air commerce. This regulation 2015–NM–003–AD.
is within the scope of that authority (h) Fluid Tests of the Left, Right, and Center
(a) Effective Date Hydraulic Systems
because it addresses an unsafe condition
that is likely to exist or develop on This AD is effective January 20, 2017. For airplanes identified in Boeing Alert
products identified in this rulemaking Service Bulletin B787–81205–SB270026–00,
(b) Affected ADs Issue 002, dated June 13, 2016, as Group 1,
action.
None. Configuration 2, Group 2: Within 36 months
Regulatory Findings after the effective date of this AD, do
(c) Applicability hydraulic fluid tests of the left, right, and
This AD will not have federalism center hydraulic systems, replace the
This AD applies to The Boeing Company
implications under Executive Order Model 787–8 series airplanes, certificated in hydraulic system fluid, if necessary, and do
13132. This AD will not have a any category, as identified in Boeing Alert all applicable related investigative and
substantial direct effect on the States, on Service Bulletin B787–81205–SB270026–00, corrective actions, in accordance with the
the relationship between the national Issue 002, dated June 13, 2016. Accomplishment Instructions of Boeing Alert
government and the States, or on the Service Bulletin B787–81205–SB270026–00,
distribution of power and (d) Subject Issue 002, dated June 13, 2016. Do all
responsibilities among the various Air Transport Association (ATA) of applicable related investigative and
America Code 27, Flight Control Systems. corrective actions within 36 months after the
levels of government. effective date of this AD.
For the reasons discussed above, I (e) Unsafe Condition
certify that this AD: (i) Credit for Previous Actions
(1) Is not a ‘‘significant regulatory This AD was prompted by reports of the
This paragraph provides credit for the
accumulation of very fine particle deposits in
action’’ under Executive Order 12866, actions required by paragraphs (g) and (h) of
the power control unit (PCU) electro-
(2) Is not a ‘‘significant rule’’ under this AD, if those actions were performed
hydraulic servo valves (EHSVs) used in the before the effective date of this AD using
DOT Regulatory Policies and Procedures
asabaliauskas on DSK3SPTVN1PROD with RULES
flight control system; this accumulation Boeing Alert Service Bulletin B787–81205–
(44 FR 11034, February 26, 1979), caused degraded performance due to reduced
(3) Will not affect intrastate aviation SB270026–00, Issue 001, dated November 25,
EHSV internal hydraulic supply pressures, 2014.
in Alaska, and resulting in the display of PCU fault status
(4) Will not have a significant messages from the engine indication and (j) Alternative Methods of Compliance
economic impact, positive or negative, crew alerting system (EICAS). We are issuing (AMOCs)
on a substantial number of small entities this AD to prevent failure of flight control (1) The Manager, Seattle Aircraft
under the criteria of the Regulatory hydraulic PCUs, which could lead to reduced Certification Office (ACO), FAA, has the
Flexibility Act. controllability of the airplane. authority to approve AMOCs for this AD, if
VerDate Sep<11>2014 17:15 Dec 15, 2016 Jkt 241001 PO 00000 Frm 00009 Fmt 4700 Sfmt 4700 E:\FR\FM\16DER1.SGM 16DER1](https://thefederalregister.org/doc/81_FR_91197/page/3.svg)
![90958 Federal Register / Vol. 81, No. 242 / Friday, December 16, 2016 / Rules and Regulations
requested using the procedures found in 14 Services (C&DS), 2600 Westminster Blvd., • Mail: U.S. Department of
CFR 39.19. In accordance with 14 CFR 39.19, MC 110–SK57, Seal Beach, CA 90740; Transportation, Docket Operations, M–
send your request to your principal inspector telephone 562–797–1717; Internet https:// 30, West Building Ground Floor, Room
or local Flight Standards District Office, as www.myboeingfleet.com. W12–140, 1200 New Jersey Avenue SE.,
appropriate. If sending information directly (4) You may view this service information
to the manager of the ACO, send it to the at the FAA, Transport Airplane Directorate,
Washington, DC 20590.
attention of the person identified in 1601 Lind Avenue SW., Renton, WA. For
• Hand Delivery: U.S. Department of
paragraph (k)(1) of this AD. Information may information on the availability of this Transportation, Docket Operations, M–
be emailed to: 9-ANM-Seattle-ACO-AMOC- material at the FAA, call 425–227–1221. 30, West Building Ground Floor, Room
Requests@faa.gov. (5) You may view this service information W12–140, 1200 New Jersey Avenue SE.,
(2) Before using any approved AMOC, that is incorporated by reference at the Washington, DC, between 9 a.m. and 5
notify your appropriate principal inspector, National Archives and Records p.m., Monday through Friday, except
or lacking a principal inspector, the manager Administration (NARA). For information on Federal holidays.
of the local flight standards district office/ the availability of this material at NARA, call For service information identified in
certificate holding district office. 202–741–6030, or go to: http:// this final rule, contact Airbus,
(3) For service information that contains www.archives.gov/federal-register/cfr/ibr- Airworthiness Office—EIAS, 1 Rond
steps that are labeled as Required for locations.html.
Point Maurice Bellonte, 31707 Blagnac
Compliance (RC), the provisions of
Issued in Renton, Washington, on Cedex, France; telephone: +33 5 61 93
paragraphs (j)(3)(i) and (j)(3)(ii) apply.
November 25, 2016. 36 96; fax: +33 5 61 93 44 51; email:
(i) The steps labeled as RC, including
substeps under an RC step and any figures John P. Piccola, Jr., account.airworth-eas@airbus.com;
identified in an RC step, must be done to Acting Manager, Transport Airplane Internet: http://www.airbus.com. You
comply with the AD. If a step or sub-step is Directorate, Aircraft Certification Service. may view this referenced service
labeled ‘‘RC Exempt,’’ then the RC [FR Doc. 2016–29251 Filed 12–15–16; 8:45 am] information at the FAA, Transport
requirement is removed from that step or BILLING CODE 4910–13–P Airplane Directorate, 1601 Lind Avenue
sub-step. An AMOC is required for any SW., Renton, WA. For information on
deviations to RC steps, including substeps the availability of this material at the
and identified figures.
DEPARTMENT OF TRANSPORTATION FAA, call 425–227–1221. It is also
(ii) Steps not labeled as RC may be
deviated from using accepted methods in
available on the Internet at http://
Federal Aviation Administration www.regulations.gov by searching for
accordance with the operator’s maintenance
or inspection program without obtaining and locating Docket No. FAA–2016–
approval of an AMOC, provided the RC steps, 14 CFR Part 39 9509.
including substeps and identified figures, can
[Docket No. FAA–2016–9509; Directorate Examining the AD Docket
still be done as specified, and the airplane
Identifier 2016–NM–177–AD; Amendment
can be put back in an airworthy condition. You may examine the AD docket on
39–18750; AD 2016–25–24]
(4) An AMOC that provides an acceptable the Internet at http://
level of safety may be used for any repair RIN 2120–AA64 www.regulations.gov by searching for
required by this AD if it is approved by the and locating Docket No. FAA–2016–
Boeing Commercial Airplanes Organization Airworthiness Directives; Airbus 9509; or in person at the Docket
Designation Authorization (ODA) that has Airplanes Operations office between 9 a.m. and 5
been authorized by the Manager, Seattle ACO
to make those findings. For a repair method p.m., Monday through Friday, except
AGENCY: Federal Aviation Federal holidays. The AD docket
to be approved, the repair must meet the Administration (FAA), DOT.
certification basis of the airplane, and the contains this AD, the regulatory
approval must specifically refer to this AD. ACTION: Final rule; request for evaluation, any comments received, and
comments. other information. The street address for
(k) Related Information
the Docket Operations office (telephone:
(1) For more information about this AD, SUMMARY: We are adopting a new 800–647–5527) is in the ADDRESSES
contact Fnu Winarto, Aerospace Engineer, airworthiness directive (AD) for certain section. Comments will be available in
Systems and Equipment Branch, ANM–130S, Airbus Model A319, A320, and A321 the AD docket shortly after receipt.
FAA, Seattle ACO, 1601 Lind Avenue SW., series airplanes. This AD requires
Renton, WA 98057–3356; phone: 425–917– FOR FURTHER INFORMATION CONTACT:
repetitive general visual inspections for
6659; fax: 425–917–6590; email: Sanjay Ralhan, Aerospace Engineer,
broken battery retaining rods and
fnu.winarto@faa.gov. International Branch, ANM–116,
replacement if necessary. We are issuing
(2) Service information identified in this Transport Airplane Directorate, FAA,
AD that is not incorporated by reference is
this AD to address the unsafe condition
1601 Lind Avenue SW., Renton, WA
available at the addresses specified in on these products.
98057–3356; telephone: 425–227–1405;
paragraphs (l)(3) and (l)(4) of this AD. DATES: This AD becomes effective fax: 425–227–1149.
(l) Material Incorporated by Reference
January 3, 2017. SUPPLEMENTARY INFORMATION:
The Director of the Federal Register
(1) The Director of the Federal Register approved the incorporation by reference Discussion
approved the incorporation by reference
(IBR) of the service information listed in this
of a certain publication listed in this AD The European Aviation Safety Agency
paragraph under 5 U.S.C. 552(a) and 1 CFR as of January 3, 2017. (EASA), which is the Technical Agent
part 51. We must receive comments on this for the Member States of the European
(2) You must use this service information AD by January 30, 2017. Union, has issued EASA AD 2016–0204,
asabaliauskas on DSK3SPTVN1PROD with RULES
as applicable to do the actions required by ADDRESSES: You may send comments, dated October 13, 2016; corrected
this AD, unless the AD specifies otherwise. using the procedures found in 14 CFR October 19, 2016 (referred to after this
(i) Boeing Alert Service Bulletin B787– 11.43 and 11.45, by any of the following as the Mandatory Continuing
81205–SB270026–00, Issue 002, dated June
13, 2016.
methods: Airworthiness Information, or ‘‘the
(ii) Reserved. • Federal eRulemaking Portal: Go to MCAI’’); to correct an unsafe condition
(3) For service information identified in http://www.regulations.gov. Follow the for certain Airbus Model A319, A320,
this AD, contact Boeing Commercial instructions for submitting comments. and A321 series airplanes. The MCAI
Airplanes, Attention: Contractual & Data • Fax: 202–493–2251. states:
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Document Created: 2018-02-14 09:07:48
Document Modified: 2018-02-14 09:07:48
| 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 January 20, 2017. | |
| Contact | Fnu Winarto, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057- 3356; phone: 425-917-6659; fax: 425-917-6590; email: [email protected] | |
| FR Citation | 81 FR 90955 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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