82 FR 38626 - Airworthiness Directives; Bombardier, Inc., Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 82, Issue 156 (August 15, 2017)
Federal Aviation Administration
Federal Register Volume 82, Issue 156 (August 15, 2017)
| Page Range | 38626-38629 | |
| FR Document | 2017-16777 |
[Federal Register Volume 82, Number 156 (Tuesday, August 15, 2017)] [Proposed Rules] [Pages 38626-38629] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2017-16777] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2017-0775; Product Identifier 2017-NM-048-AD] RIN 2120-AA64 Airworthiness Directives; Bombardier, Inc., Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to supersede Airworthiness Directive (AD) 2016-25- 18, for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. AD 2016-25-18 requires an inspection for discrepancies of the attachment points of the links between the engine rear mount assemblies, and corrective actions if necessary. Since we issued AD 2016-25-18, we have determined that replacement of certain nuts and bolts in the engine rear mount assemblies is necessary. This proposed AD would require an inspection of certain attachment points, corrective action if necessary, and replacement of certain bolts and nuts in the engine rear mount assemblies. This proposed AD also adds airplanes to the applicability. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by September 29, 2017. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. Fax: 202-493-2251. Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590. Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this NPRM, contact Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-7401; email [email protected]; Internet http://www.bombardier.com. You may view this referenced service information at the FAA, Transport Standards Branch, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017- 0775; 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 proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Aziz Ahmed, Airframe Engineer, Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228-7329; fax: 516-794-5531. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2017-0775; Product Identifier 2017-NM-048-AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD based on those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion On December 2, 2016, we issued AD 2016-25-18, Amendment 39-18744 (81 FR 90961, December 16, 2016) (``AD 2016-25-18''), for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. AD 2016- 25-18 was prompted by a report indicating that during maintenance, an engine mount pin was found backed out of the rear mount link, and the associated retaining bolt was also found fractured. AD 2016-25-18 requires an inspection for discrepancies of the attachment points of the links between the engine rear mount assemblies, and corrective actions if necessary. We issued AD 2016-25-18 to detect and correct broken engine attachment hardware, which could result in separation of an engine from the airplane. Since we issued AD 2016-25-18, we have determined that replacement of certain nuts and bolts in the engine rear mount assemblies is necessary. Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian AD CF-2016-23R1, dated February 20, 2017 (referred to after this as the Mandatory Continuing Airworthiness Information, or ''the MCAI''), to correct an unsafe condition for certain Bombardier, Inc., Model BD-700-1A10 and BD-700- 1A11 airplanes. The MCAI states: Bombardier reported that during maintenance of a BD-700 aeroplane, the engine mount pin, part number (P/N) BRR15838, was found backed out of the rear mount link. The retaining bolt, P/N AS54020, which passes through the engine mount pin was also found fractured at the groove which holds the locking spring. An investigation revealed the most probable root cause of failure to be a single axial tension static overload, with no evidence of fatigue contributing to the failure. The above condition if not detected, may result in the loss of engine attachment to the airframe. As an interim corrective action, Bombardier issued Service Bulletins (SBs) 700-71-002, 700-71-6002, 700-71-5002, [[Page 38627]] and 700-1A11-71-002 to inspect the attachment points of the links between the engine rear mount assemblies, and install replacement hardware if required. The original version of this [Canadian] AD was issued to mandate incorporation of the above Bombardier SBs to inspect and maintain integrity of the affected engine rear mount assembly. Revision 1 of this [Canadian] AD is issued to mandate incorporation of the Bombardier SBs 700-71-003, 700-71-6003, 700-71- 5003, and 700-1A11-71-003 to replace the existing bolts and self- locking nuts with new bolts and nuts, as a final corrective action. The MCAI also adds airplanes having serial numbers 9764, 9766, and 9771 through 9785 inclusive to the applicability. Those airplanes are also affected by the identified unsafe condition. You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-0775. Related Service Information Under 1 CFR Part 51 Bombardier has issued the following service information. Bombardier Service Bulletin 700-71-002, Revision 01, dated June 30, 2016. Bombardier Service Bulletin 700-71-5002, Revision 01, dated June 30, 2016. Bombardier Service Bulletin 700-71-6002, Revision 01, dated June 30, 2016. Bombardier Service Bulletin 700-1A11-71-002, Revision 01, dated June 30, 2016. This service information describes procedures for an inspection for discrepancies of the attachment points of the links between the engine rear mount assemblies and corrective actions. These documents are distinct since they apply to different airplane models and serial numbers. Bombardier has also issued the following service information. The service information describes procedures for nut and bolt replacement. These documents are distinct since they apply to different airplane models and serial numbers. Bombardier Service Bulletin 700-71-003, dated December 5, 2016. Bombardier Service Bulletin 700-71-5003, dated December 5, 2016. Bombardier Service Bulletin 700-71-6003, dated December 5, 2016. Bombardier Service Bulletin 700-1A11-71-003, dated December 5, 2016. 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. FAA's Determination and Requirements of This Proposed AD This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with the State of Design Authority, we have been notified of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all pertinent information and determined an unsafe condition exists and is likely to exist or develop on other products of the same type design. Costs of Compliance We estimate that this proposed AD affects 97 airplanes of U.S. registry. The actions required by AD 2016-25-18, and retained in this proposed AD take about 1 work-hour per product, at an average labor rate of $85 per work-hour. Based on these figures, the estimated cost of the actions that are required by AD 2016-25-18 is $85 per product. The retained on-condition costs in this proposed AD take about 2 work-hours per product, at an average labor rate of $85 per work-hour. Required parts cost about $730 per product. Based on these figures, the estimated cost of the on-condition actions that are required by AD 2016-25-18 is $900 per product. We have received no definitive data that would enable us to provide cost estimates for other retained on-condition actions specified in AD 2016-25-18. We also estimate that it would take about 4 work-hours per product to comply with the basic requirements of this proposed AD. The average labor rate is $85 per work-hour. Required parts would cost up to $14,940 per product. Based on these figures, we estimate the cost of this proposed AD on U.S. operators to be up to $1,482,160, or up to $15,280 per product. We have received no definitive data that would enable us to provide cost estimates for the on-condition actions specified in this proposed AD. According to the manufacturer, some of the costs of this proposed 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 available 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. 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 to the Director of the System Oversight Division. Regulatory Findings We determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this proposed regulation: 1. Is not a ``significant regulatory action'' under Executive Order 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska; and 4. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, [[Page 38628]] the FAA proposes to amend 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 removing Airworthiness Directive (AD) 2016-25-18, Amendment 39-18744 (81 FR 90961, December 16, 2016), and adding the following new AD: Bombardier, Inc.: Docket No. FAA-2017-0775; Product Identifier 2017- NM-048-AD. (a) Comments Due Date We must receive comments by September 29, 2017. (b) Affected ADs This AD replaces AD 2016-25-18, Amendment 39-18744 (81 FR 90961, December 16, 2016) (``AD 2016-25-18''). (c) Applicability This AD applies to Bombardier, Inc., Model BD-700-1A10 and BD- 700-1A11 airplanes, certificated in any category, serial numbers (S/ Ns) 9002 through 9785 inclusive, and 9998. (d) Subject Air Transport Association (ATA) of America Code 72, Engine. (e) Reason This AD was prompted by a report indicating that during maintenance, an engine mount pin was found backed out of the rear mount link, and the associated retaining bolt was also found fractured at the groove that holds the locking spring. We are issuing this AD to detect and correct broken engine attachment hardware, which could result in separation of an engine from the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Retained Inspection, With No Changes This paragraph restates the requirements of paragraph (g) of AD 2016-25-18, with no changes. For airplanes having S/Ns 9002 through 9763 inclusive, 9765, 9767 through 9770 inclusive, and 9998: Within 500 flight hours or 4 months, whichever occurs first after January 3, 2017 (the effective date of AD 2016-25-18), do an inspection for discrepancies of the engine rear mount assemblies (including missing or broken bolts, missing nuts, incorrect torque values, and an incorrect gap between the bushing and washer); in accordance with Part A of the Accomplishment Instructions of the applicable service information specified in paragraphs (g)(1) through (g)(4) of this AD. Accomplishing the actions required by paragraphs (j) and (k) of this AD terminates the requirements of this paragraph. (1) Bombardier Service Bulletin 700-71-002, Revision 01, dated June 30, 2016 (for Bombardier Model BD-700-1A10 airplanes). (2) Bombardier Service Bulletin 700-71-6002, Revision 01, dated June 30, 2016 (for Bombardier Model BD-700-1A10 airplanes). (3) Bombardier Service Bulletin 700-71-5002, Revision 01, dated June 30, 2016 (for Bombardier Model BD-700-1A11 airplanes). (4) Bombardier Service Bulletin 700-1A11-71-002, Revision 01, dated June 30, 2016 (for Bombardier Model BD-700-1A11 airplanes). (h) Retained Corrective Action for Paragraph (g) of This AD, With No Changes This paragraph restates the requirements of paragraph (h) of AD 2016-25-18, with no changes. If any discrepancy is detected during the inspection required by paragraph (g) of this AD, before further flight, replace missing parts and correct noncompliant gaps and bolt torque, as specified in the Accomplishment Instructions of the applicable service information specified in paragraphs (g)(1) through (g)(4) of this AD, except as required by paragraph (i) of this AD. Accomplishing the actions required by paragraphs (j) and (k) of this AD terminates the requirements of this paragraph. (i) Retained Exception to Service Information Specifications, With No Changes This paragraph restates the requirements of paragraph (i) of AD 2016-25-18, with no changes. Where the applicable Bombardier service bulletin specified in paragraphs (g)(1) through (g)(4) of this AD provides no instructions for corrective actions, or specifies to contact Bombardier for appropriate action, accomplish corrective actions in accordance with the procedures specified in paragraph (o)(2) of this AD. (j) New Requirement of This AD: Gap Measurement Within 1,000 flight hours or 12 months, whichever occurs first after the effective date of this AD: Measure the gaps between the applicable shouldered bushing fitted on the mount beam and the washer; and between the applicable engine ring lug and the head of the mount pin to determine if the gaps are within acceptable limits; in accordance with Part A of the Accomplishment Instructions of the applicable service information specified in paragraphs (j)(1) through (j)(4) of this AD. Accomplishing the actions required by paragraphs (j) and (k) of this AD terminates the requirements of paragraphs (g) and (h) of this AD. (1) Bombardier Service Bulletin 700-71-003, dated December 5, 2016 (for Bombardier Model BD-700-1A10 airplanes). (2) Bombardier Service Bulletin 700-71-6003, dated December 5, 2016 (for Bombardier Model BD-700-1A10 airplanes). (3) Bombardier Service Bulletin 700-71-5003, dated December 5, 2016 (for Bombardier Model BD-700-1A11 airplanes). (4) Bombardier Service Bulletin 700-1A11-71-003, dated December 5, 2016 (for Bombardier Model BD-700-1A11 airplanes). (k) New Requirement of This AD: Nut and Bolt Replacement, and Gap Measurement Within 1,000 flight hours or 12 months, whichever occurs first after the effective date of this AD: Replace the nuts having part number (P/N) AS54365 and the bolts having P/N AS54020 and AS54002 in the engine rear mount assembly with new nuts and new bolts; and do the gap measurement to determine if the gap is within acceptable limits; in accordance with Part B of the Accomplishment Instructions the applicable service information specified in paragraphs (j)(1) through (j)(4) of this AD. (l) New Requirement of This AD: Corrective Action If any gap is detected, during any measurement required by paragraph (j) or (k) of this AD, that is not within the applicable limits specified in the service information specified in paragraphs (j)(1) through (j)(4) of this AD, before further flight repair using a method approved by the Manager, New York ACO Branch, FAA; or Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.'s TCCA Design Approval Organization (DAO). (m) No Reporting Required Although the service information identified in paragraphs (j)(1) through (j)(4) of this AD specifies to submit certain information to the manufacturer, this AD does not include that requirement. (n) Credit for Previous Actions This paragraph provides credit for actions required by paragraphs (g) and (h) of this AD, if those actions were performed before January 3, 2017 (the effective date of AD 2016-25-18), in accordance with the Accomplishment Instructions of the applicable service information specified in paragraphs (n)(1) through (n)(4) of this AD. (1) Bombardier Service Bulletin 700-71-002, dated May 31, 2016. (2) Bombardier Service Bulletin 700-71-6002, dated May 31, 2016. (3) Bombardier Service Bulletin 700-71-5002, dated May 31, 2016. (4) Bombardier Service Bulletin 700-1A11-71-002, dated May 31, 2016. (o) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York 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 ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228-7300; fax: 516-794-5531. 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. [[Page 38629]] (2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, New York ACO Branch, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO. If approved by the DAO, the approval must include the DAO-authorized signature. (p) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian Airworthiness Directive 2016-23R1, dated February 20, 2017, for related information. This MCAI may be found in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-0775. (2) For more information about this AD, contact Aziz Ahmed, Airframe Engineer, Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228-7329; fax: 516-794-5531. (3) For service information identified in this AD, contact Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855- 7401; email [email protected]; Internet http://www.bombardier.com. You may view this service information at the FAA, Transport Standards Branch, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. Issued in Renton, Washington, on August 2, 2017. Jeffrey E. Duven, Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2017-16777 Filed 8-14-17; 8:45 am] BILLING CODE 4910-13-P
![38626 Federal Register / Vol. 82, No. 156 / Tuesday, August 15, 2017 / Proposed Rules
or inspection program without obtaining We are proposing this AD to address the 2017–0775; Product Identifier 2017–
approval of an AMOC, provided the RC steps, unsafe condition on these products. NM–048–AD’’ at the beginning of your
including substeps and identified figures, can comments. We specifically invite
DATES: We must receive comments on
still be done as specified, and the airplane comments on the overall regulatory,
can be put back in an airworthy condition. this proposed AD by September 29,
2017. economic, environmental, and energy
(k) Related Information aspects of this proposed AD. We will
ADDRESSES: You may send comments,
(1) For more information about this AD, consider all comments received by the
using the procedures found in 14 CFR
contact Alan Pohl, Aerospace Engineer, closing date and may amend this
Airframe Section, FAA, Seattle ACO Branch,
11.43 and 11.45, by any of the following
proposed AD based on those comments.
1601 Lind Avenue SW., Renton, WA 98057– methods: We will post all comments we
3356; phone: 425–917–6450; fax: 425–917– • Federal eRulemaking Portal: Go to
receive, without change, to http://
6590; email: alan.pohl@faa.gov. http://www.regulations.gov. Follow the
www.regulations.gov, including any
(2) For service information identified in instructions for submitting comments.
• Fax: 202–493–2251. personal information you provide. We
this AD, contact Boeing Commercial
Airplanes, Attention: Contractual & Data • Mail: U.S. Department of will also post a report summarizing each
Services (C&DS), 2600 Westminster Blvd., Transportation, Docket Operations, M– substantive verbal contact we receive
MC 110–SK57, Seal Beach, CA 90740–5600; 30, West Building Ground Floor, Room about this proposed AD.
telephone 562–797–1717; Internet https:// W12–140, 1200 New Jersey Avenue SE., Discussion
www.myboeingfleet.com. You may view this Washington, DC 20590.
referenced service information at the FAA, On December 2, 2016, we issued AD
• Hand Delivery: Deliver to Mail
Transport Standards Branch, 1601 Lind 2016–25–18, Amendment 39–18744 (81
Avenue SW., Renton, WA. For information address above between 9 a.m. and 5
FR 90961, December 16, 2016) (‘‘AD
on the availability of this material at the p.m., Monday through Friday, except
2016–25–18’’), for certain Bombardier,
FAA, call 425–227–1221. Federal holidays.
Inc., Model BD–700–1A10 and BD–700–
For service information identified in
Issued in Renton, Washington, on August 1A11 airplanes. AD 2016–25–18 was
2, 2017.
this NPRM, contact Bombardier, Inc.,
prompted by a report indicating that
400 Côte-Vertu Road West, Dorval,
Jeffrey E. Duven, during maintenance, an engine mount
Québec H4S 1Y9, Canada; telephone
Director, System Oversight Division, Aircraft pin was found backed out of the rear
514–855–5000; fax 514–855–7401; email
Certification Service. mount link, and the associated retaining
thd.crj@aero.bombardier.com; Internet
[FR Doc. 2017–16780 Filed 8–14–17; 8:45 am] bolt was also found fractured. AD 2016–
http://www.bombardier.com. You may
BILLING CODE 4910–13–P 25–18 requires an inspection for
view this referenced service information
discrepancies of the attachment points
at the FAA, Transport Standards
of the links between the engine rear
Branch, 1601 Lind Avenue SW., Renton,
DEPARTMENT OF TRANSPORTATION mount assemblies, and corrective
WA. For information on the availability
actions if necessary. We issued AD
Federal Aviation Administration of this material at the FAA, call 425–
2016–25–18 to detect and correct broken
227–1221.
engine attachment hardware, which
14 CFR Part 39 Examining the AD Docket could result in separation of an engine
You may examine the AD docket on from the airplane.
[Docket No. FAA–2017–0775; Product
the Internet at http:// Since we issued AD 2016–25–18, we
Identifier 2017–NM–048–AD]
www.regulations.gov by searching for have determined that replacement of
RIN 2120–AA64 and locating Docket No. FAA–2017– certain nuts and bolts in the engine rear
0775; or in person at the Docket mount assemblies is necessary.
Airworthiness Directives; Bombardier, Transport Canada Civil Aviation
Management Facility between 9 a.m.
Inc., Airplanes (TCCA), which is the aviation authority
and 5 p.m., Monday through Friday,
for Canada, has issued Canadian AD
AGENCY: Federal Aviation except Federal holidays. The AD docket
CF–2016–23R1, dated February 20, 2017
Administration (FAA), DOT. contains this proposed AD, the
(referred to after this as the Mandatory
ACTION: Notice of proposed rulemaking
regulatory evaluation, any comments
Continuing Airworthiness Information,
(NPRM). received, and other information. The
or ’’the MCAI’’), to correct an unsafe
street address for the Docket Operations
condition for certain Bombardier, Inc.,
SUMMARY: We propose to supersede office (telephone 800–647–5527) is in
Model BD–700–1A10 and BD–700–
Airworthiness Directive (AD) 2016–25– the ADDRESSES section. Comments will
1A11 airplanes. The MCAI states:
18, for certain Bombardier, Inc., Model be available in the AD docket shortly
BD–700–1A10 and BD–700–1A11 after receipt. Bombardier reported that during
airplanes. AD 2016–25–18 requires an maintenance of a BD–700 aeroplane, the
FOR FURTHER INFORMATION CONTACT: Aziz
engine mount pin, part number (P/N)
inspection for discrepancies of the Ahmed, Airframe Engineer, Airframe BRR15838, was found backed out of the rear
attachment points of the links between and Mechanical Systems Section, FAA, mount link. The retaining bolt, P/N AS54020,
the engine rear mount assemblies, and New York ACO Branch, 1600 Stewart which passes through the engine mount pin
corrective actions if necessary. Since we Avenue, Suite 410, Westbury, NY was also found fractured at the groove which
issued AD 2016–25–18, we have 11590; telephone: 516–228–7329; fax: holds the locking spring. An investigation
determined that replacement of certain 516–794–5531. revealed the most probable root cause of
mstockstill on DSK30JT082PROD with PROPOSALS
nuts and bolts in the engine rear mount SUPPLEMENTARY INFORMATION: failure to be a single axial tension static
assemblies is necessary. This proposed overload, with no evidence of fatigue
AD would require an inspection of Comments Invited contributing to the failure.
The above condition if not detected, may
certain attachment points, corrective We invite you to send any written result in the loss of engine attachment to the
action if necessary, and replacement of relevant data, views, or arguments about airframe.
certain bolts and nuts in the engine rear this proposal. Send your comments to As an interim corrective action,
mount assemblies. This proposed AD an address listed under the ADDRESSES Bombardier issued Service Bulletins (SBs)
also adds airplanes to the applicability. section. Include ‘‘Docket No. FAA– 700–71–002, 700–71–6002, 700–71–5002,
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![Federal Register / Vol. 82, No. 156 / Tuesday, August 15, 2017 / Proposed Rules 38627
and 700–1A11–71–002 to inspect the FAA’s Determination and Requirements rules on aviation safety. Subtitle I,
attachment points of the links between the of This Proposed AD section 106, describes the authority of
engine rear mount assemblies, and install the FAA Administrator. ‘‘Subtitle VII:
replacement hardware if required. This product has been approved by
the aviation authority of another Aviation Programs,’’ describes in more
The original version of this [Canadian] AD
was issued to mandate incorporation of the country, and is approved for operation detail the scope of the Agency’s
above Bombardier SBs to inspect and in the United States. Pursuant to our authority.
maintain integrity of the affected engine rear We are issuing this rulemaking under
bilateral agreement with the State of
mount assembly. the authority described in ‘‘Subtitle VII,
Design Authority, we have been notified
Revision 1 of this [Canadian] AD is issued Part A, Subpart III, Section 44701:
of the unsafe condition described in the
to mandate incorporation of the Bombardier General requirements.’’ Under that
SBs 700–71–003, 700–71–6003, 700–71–
MCAI and service information
section, Congress charges the FAA with
5003, and 700–1A11–71–003 to replace the referenced above. We are proposing this
promoting safe flight of civil aircraft in
existing bolts and self-locking nuts with new AD because we evaluated all pertinent
air commerce by prescribing regulations
bolts and nuts, as a final corrective action. information and determined an unsafe
for practices, methods, and procedures
condition exists and is likely to exist or
The MCAI also adds airplanes having the Administrator finds necessary for
develop on other products of the same
serial numbers 9764, 9766, and 9771 safety in air commerce. This regulation
type design.
through 9785 inclusive to the is within the scope of that authority
applicability. Those airplanes are also Costs of Compliance because it addresses an unsafe condition
affected by the identified unsafe We estimate that this proposed AD that is likely to exist or develop on
condition. You may examine the MCAI affects 97 airplanes of U.S. registry. products identified in this rulemaking
in the AD docket on the Internet at The actions required by AD 2016–25– action.
http://www.regulations.gov by searching 18, and retained in this proposed AD This AD is issued in accordance with
for and locating Docket No. FAA–2017– take about 1 work-hour per product, at authority delegated by the Executive
0775. an average labor rate of $85 per work- Director, Aircraft Certification Service,
hour. Based on these figures, the as authorized by FAA Order 8000.51C.
Related Service Information Under 1
estimated cost of the actions that are In accordance with that order, issuance
CFR Part 51
required by AD 2016–25–18 is $85 per of ADs is normally a function of the
Bombardier has issued the following Compliance and Airworthiness
service information. product.
The retained on-condition costs in Division, but during this transition
• Bombardier Service Bulletin 700– period, the Executive Director has
71–002, Revision 01, dated June 30, this proposed AD take about 2 work-
hours per product, at an average labor delegated the authority to issue ADs
2016. applicable to transport category
• Bombardier Service Bulletin 700– rate of $85 per work-hour. Required
parts cost about $730 per product. Based airplanes to the Director of the System
71–5002, Revision 01, dated June 30, Oversight Division.
2016. on these figures, the estimated cost of
• Bombardier Service Bulletin 700– the on-condition actions that are Regulatory Findings
71–6002, Revision 01, dated June 30, required by AD 2016–25–18 is $900 per We determined that this proposed AD
2016. product. would not have federalism implications
• Bombardier Service Bulletin 700– We have received no definitive data under Executive Order 13132. This
1A11–71–002, Revision 01, dated June that would enable us to provide cost proposed AD would not have a
30, 2016. estimates for other retained on- substantial direct effect on the States, on
This service information describes condition actions specified in AD 2016– the relationship between the national
procedures for an inspection for 25–18. Government and the States, or on the
discrepancies of the attachment points We also estimate that it would take distribution of power and
of the links between the engine rear about 4 work-hours per product to responsibilities among the various
mount assemblies and corrective comply with the basic requirements of levels of government.
actions. These documents are distinct this proposed AD. The average labor For the reasons discussed above, I
since they apply to different airplane rate is $85 per work-hour. Required certify this proposed regulation:
models and serial numbers. parts would cost up to $14,940 per 1. Is not a ‘‘significant regulatory
Bombardier has also issued the product. Based on these figures, we action’’ under Executive Order 12866;
following service information. The estimate the cost of this proposed AD on 2. Is not a ‘‘significant rule’’ under the
service information describes U.S. operators to be up to $1,482,160, or DOT Regulatory Policies and Procedures
procedures for nut and bolt up to $15,280 per product. (44 FR 11034, February 26, 1979);
replacement. These documents are We have received no definitive data 3. Will not affect intrastate aviation in
distinct since they apply to different that would enable us to provide cost Alaska; and
airplane models and serial numbers. estimates for the on-condition actions 4. Will not have a significant
• Bombardier Service Bulletin 700– specified in this proposed AD. economic impact, positive or negative,
71–003, dated December 5, 2016. According to the manufacturer, some on a substantial number of small entities
• Bombardier Service Bulletin 700– of the costs of this proposed AD may be under the criteria of the Regulatory
71–5003, dated December 5, 2016. covered under warranty, thereby Flexibility Act.
• Bombardier Service Bulletin 700– reducing the cost impact on affected
mstockstill on DSK30JT082PROD with PROPOSALS
71–6003, dated December 5, 2016. individuals. We do not control warranty List of Subjects in 14 CFR Part 39
• Bombardier Service Bulletin 700– coverage for affected individuals. As a Air transportation, Aircraft, Aviation
1A11–71–003, dated December 5, 2016. result, we have included all available safety, Incorporation by reference,
This service information is reasonably costs in our cost estimate. Safety.
available because the interested parties
have access to it through their normal Authority for This Rulemaking The Proposed Amendment
course of business or by the means Title 49 of the United States Code Accordingly, under the authority
identified in the ADDRESSES section. specifies the FAA’s authority to issue delegated to me by the Administrator,
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![38628 Federal Register / Vol. 82, No. 156 / Tuesday, August 15, 2017 / Proposed Rules
the FAA proposes to amend 14 CFR part paragraphs (j) and (k) of this AD terminates (k) New Requirement of This AD: Nut and
39 as follows: the requirements of this paragraph. Bolt Replacement, and Gap Measurement
(1) Bombardier Service Bulletin 700–71– Within 1,000 flight hours or 12 months,
PART 39—AIRWORTHINESS 002, Revision 01, dated June 30, 2016 (for whichever occurs first after the effective date
DIRECTIVES Bombardier Model BD–700–1A10 airplanes). of this AD: Replace the nuts having part
(2) Bombardier Service Bulletin 700–71– number (P/N) AS54365 and the bolts having
■ 1. The authority citation for part 39 6002, Revision 01, dated June 30, 2016 (for P/N AS54020 and AS54002 in the engine rear
continues to read as follows: Bombardier Model BD–700–1A10 airplanes). mount assembly with new nuts and new
(3) Bombardier Service Bulletin 700–71– bolts; and do the gap measurement to
Authority: 49 U.S.C. 106(g), 40113, 44701. 5002, Revision 01, dated June 30, 2016 (for determine if the gap is within acceptable
§ 39.13 [Amended] Bombardier Model BD–700–1A11 airplanes). limits; in accordance with Part B of the
(4) Bombardier Service Bulletin 700– Accomplishment Instructions the applicable
■ 2. The FAA amends § 39.13 by 1A11–71–002, Revision 01, dated June 30, service information specified in paragraphs
removing Airworthiness Directive (AD) 2016 (for Bombardier Model BD–700–1A11 (j)(1) through (j)(4) of this AD.
2016–25–18, Amendment 39–18744 (81 airplanes).
FR 90961, December 16, 2016), and (l) New Requirement of This AD: Corrective
(h) Retained Corrective Action for Paragraph Action
adding the following new AD: (g) of This AD, With No Changes If any gap is detected, during any
Bombardier, Inc.: Docket No. FAA–2017– This paragraph restates the requirements of measurement required by paragraph (j) or (k)
0775; Product Identifier 2017–NM–048– paragraph (h) of AD 2016–25–18, with no of this AD, that is not within the applicable
AD. changes. If any discrepancy is detected limits specified in the service information
(a) Comments Due Date during the inspection required by paragraph specified in paragraphs (j)(1) through (j)(4) of
(g) of this AD, before further flight, replace this AD, before further flight repair using a
We must receive comments by September
missing parts and correct noncompliant gaps method approved by the Manager, New York
29, 2017.
and bolt torque, as specified in the ACO Branch, FAA; or Transport Canada Civil
(b) Affected ADs Accomplishment Instructions of the Aviation (TCCA); or Bombardier, Inc.’s TCCA
This AD replaces AD 2016–25–18, applicable service information specified in Design Approval Organization (DAO).
Amendment 39–18744 (81 FR 90961, paragraphs (g)(1) through (g)(4) of this AD,
except as required by paragraph (i) of this (m) No Reporting Required
December 16, 2016) (‘‘AD 2016–25–18’’).
AD. Accomplishing the actions required by Although the service information
(c) Applicability paragraphs (j) and (k) of this AD terminates identified in paragraphs (j)(1) through (j)(4) of
This AD applies to Bombardier, Inc., the requirements of this paragraph. this AD specifies to submit certain
Model BD–700–1A10 and BD–700–1A11 information to the manufacturer, this AD
(i) Retained Exception to Service does not include that requirement.
airplanes, certificated in any category, serial Information Specifications, With No
numbers (S/Ns) 9002 through 9785 inclusive, Changes (n) Credit for Previous Actions
and 9998.
This paragraph restates the requirements of This paragraph provides credit for actions
(d) Subject paragraph (i) of AD 2016–25–18, with no required by paragraphs (g) and (h) of this AD,
Air Transport Association (ATA) of changes. Where the applicable Bombardier if those actions were performed before
America Code 72, Engine. service bulletin specified in paragraphs (g)(1) January 3, 2017 (the effective date of AD
through (g)(4) of this AD provides no 2016–25–18), in accordance with the
(e) Reason instructions for corrective actions, or Accomplishment Instructions of the
This AD was prompted by a report specifies to contact Bombardier for applicable service information specified in
indicating that during maintenance, an appropriate action, accomplish corrective paragraphs (n)(1) through (n)(4) of this AD.
engine mount pin was found backed out of actions in accordance with the procedures (1) Bombardier Service Bulletin 700–71–
the rear mount link, and the associated specified in paragraph (o)(2) of this AD. 002, dated May 31, 2016.
retaining bolt was also found fractured at the (2) Bombardier Service Bulletin 700–71–
(j) New Requirement of This AD: Gap 6002, dated May 31, 2016.
groove that holds the locking spring. We are Measurement
issuing this AD to detect and correct broken (3) Bombardier Service Bulletin 700–71–
engine attachment hardware, which could Within 1,000 flight hours or 12 months, 5002, dated May 31, 2016.
result in separation of an engine from the whichever occurs first after the effective date (4) Bombardier Service Bulletin 700–
airplane. of this AD: Measure the gaps between the 1A11–71–002, dated May 31, 2016.
applicable shouldered bushing fitted on the
(f) Compliance mount beam and the washer; and between (o) Other FAA AD Provisions
Comply with this AD within the the applicable engine ring lug and the head The following provisions also apply to this
compliance times specified, unless already of the mount pin to determine if the gaps are AD:
done. within acceptable limits; in accordance with (1) Alternative Methods of Compliance
Part A of the Accomplishment Instructions of (AMOCs): The Manager, New York ACO
(g) Retained Inspection, With No Changes the applicable service information specified Branch, FAA, has the authority to approve
This paragraph restates the requirements of in paragraphs (j)(1) through (j)(4) of this AD. AMOCs for this AD, if requested using the
paragraph (g) of AD 2016–25–18, with no Accomplishing the actions required by procedures found in 14 CFR 39.19. In
changes. For airplanes having S/Ns 9002 paragraphs (j) and (k) of this AD terminates accordance with 14 CFR 39.19, send your
through 9763 inclusive, 9765, 9767 through the requirements of paragraphs (g) and (h) of request to your principal inspector or local
9770 inclusive, and 9998: Within 500 flight this AD. Flight Standards District Office, as
hours or 4 months, whichever occurs first (1) Bombardier Service Bulletin 700–71– appropriate. If sending information directly
after January 3, 2017 (the effective date of AD 003, dated December 5, 2016 (for Bombardier to the manager of the certification office,
2016–25–18), do an inspection for Model BD–700–1A10 airplanes). send it to ATTN: Program Manager,
mstockstill on DSK30JT082PROD with PROPOSALS
discrepancies of the engine rear mount (2) Bombardier Service Bulletin 700–71– Continuing Operational Safety, FAA, New
assemblies (including missing or broken 6003, dated December 5, 2016 (for York ACO Branch, 1600 Stewart Avenue,
bolts, missing nuts, incorrect torque values, Bombardier Model BD–700–1A10 airplanes). Suite 410, Westbury, NY 11590; telephone:
and an incorrect gap between the bushing (3) Bombardier Service Bulletin 700–71– 516–228–7300; fax: 516–794–5531. Before
and washer); in accordance with Part A of the 5003, dated December 5, 2016 (for using any approved AMOC, notify your
Accomplishment Instructions of the Bombardier Model BD–700–1A11 airplanes). appropriate principal inspector, or lacking a
applicable service information specified in (4) Bombardier Service Bulletin 700– principal inspector, the manager of the local
paragraphs (g)(1) through (g)(4) of this AD. 1A11–71–003, dated December 5, 2016 (for flight standards district office/certificate
Accomplishing the actions required by Bombardier Model BD–700–1A11 airplanes). holding district office.
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![Federal Register / Vol. 82, No. 156 / Tuesday, August 15, 2017 / Proposed Rules 38629
(2) Contacting the Manufacturer: For any (GCU) that addresses the software SW., Renton, WA 98057–3356; phone:
requirement in this AD to obtain corrective counter overflow anomaly that 425–917–6480; fax: 425–917–6590;
actions from a manufacturer, the action must prompted the issuance of AD 2015–09– email: Stephen.Oshiro@faa.gov.
be accomplished using a method approved 07. This proposed AD would require SUPPLEMENTARY INFORMATION:
by the Manager, New York ACO Branch,
FAA; or TCCA; or Bombardier, Inc.’s TCCA
installing the new GCU software. This
proposed AD would also remove certain Comments Invited
DAO. If approved by the DAO, the approval
must include the DAO-authorized signature. airplanes from the applicability. We are We invite you to send any written
proposing this AD to address the unsafe relevant data, views, or arguments about
(p) Related Information condition on these products. this proposal. Send your comments to
(1) Refer to Mandatory Continuing DATES: We must receive comments on an address listed under the ADDRESSES
Airworthiness Information (MCAI) Canadian section. Include ‘‘Docket No. FAA–
this proposed AD by September 29,
Airworthiness Directive 2016–23R1, dated 2017–0771; Product Identifier 2016–
February 20, 2017, for related information. 2017.
NM–212–AD’’ at the beginning of your
This MCAI may be found in the AD docket ADDRESSES: You may send comments, comments. We specifically invite
on the Internet at http://www.regulations.gov using the procedures found in 14 CFR
by searching for and locating Docket No. comments on the overall regulatory,
11.43 and 11.45, by any of the following economic, environmental, and energy
FAA–2017–0775. methods:
(2) For more information about this AD, aspects of this proposed AD. We will
• Federal eRulemaking Portal: Go to consider all comments received by the
contact Aziz Ahmed, Airframe Engineer,
Airframe and Mechanical Systems Section, http://www.regulations.gov. Follow the closing date and may amend this
FAA, New York ACO Branch, 1600 Stewart instructions for submitting comments. proposed AD because of those
Avenue, Suite 410, Westbury, NY 11590; • Fax: 202–493–2251. comments.
telephone: 516–228–7329; fax: 516–794– • Mail: U.S. Department of We will post all comments we
5531. Transportation, Docket Operations, M– receive, without change, to http://
(3) For service information identified in 30, West Building Ground Floor, Room www.regulations.gov, including any
this AD, contact Bombardier, Inc., 400 Côte- W12–140, 1200 New Jersey Avenue SE., personal information you provide. We
Vertu Road West, Dorval, Québec H4S 1Y9, Washington, DC 20590. will also post a report summarizing each
Canada; telephone 514–855–5000; fax 514– • Hand Delivery: Deliver to Mail substantive verbal contact we receive
855–7401; email thd.crj@ address above between 9 a.m. and 5
aero.bombardier.com; Internet http:// about this proposed AD.
p.m., Monday through Friday, except
www.bombardier.com. You may view this Discussion
service information at the FAA, Transport Federal holidays.
Standards Branch, 1601 Lind Avenue SW., For service information identified in On April 23, 2015, we issued AD
Renton, WA. For information on the this NPRM, contact Boeing Commercial 2015–09–07, Amendment 39–18153 (80
availability of this material at the FAA, call Airplanes, Attention: Contractual & Data FR 24789, May 1, 2015) (‘‘AD 2015–09–
425–227–1221. Services (C&DS), 2600 Westminster 07’’), for all The Boeing Company Model
Issued in Renton, Washington, on August Blvd., MC 110–SK57, Seal Beach, CA 787 airplanes. AD 2015–09–07 requires
2, 2017. 90740–5600; telephone 562–797–1717; a repetitive maintenance task for
Jeffrey E. Duven, Internet https:// electrical power deactivation on Model
Director, System Oversight Division, Aircraft
www.myboeingfleet.com. You may view 787 airplanes. AD 2015–09–07 resulted
Certification Service. this referenced service information at from the determination that a Model 787
[FR Doc. 2017–16777 Filed 8–14–17; 8:45 am]
the FAA, Transport Standards Branch, airplane that has been powered
1601 Lind Avenue SW., Renton, WA. continuously for 248 days can lose all
BILLING CODE 4910–13–P
For information on the availability of alternating current (AC) electrical power
this material at the FAA, call 425–227– due to the GCUs simultaneously going
DEPARTMENT OF TRANSPORTATION 1221. It is also available on the Internet into failsafe mode. This condition is
at http://www.regulations.gov by caused by a software counter internal to
Federal Aviation Administration searching for and locating Docket No. the GCUs that will overflow after 248
FAA–2017–0771. days of continuous power. We issued
14 CFR Part 39 Examining the AD Docket AD 2015–09–07 to prevent loss of all AC
[Docket No. FAA–2017–0771; Product electrical power, which could result in
You may examine the AD docket on loss of control of the airplane.
Identifier 2016–NM–212–AD] the Internet at http://
RIN 2120–AA64 www.regulations.gov by searching for Actions Since AD 2015–09–07 Was
and locating Docket No. FAA–2017– Issued
Airworthiness Directives; The Boeing 0771; or in person at the Docket The preamble to AD 2015–09–07
Company Airplanes Management Facility between 9 a.m. specifies that we consider the
AGENCY: Federal Aviation and 5 p.m., Monday through Friday, requirements ‘‘interim action’’ and that
Administration (FAA), DOT. except Federal holidays. The AD docket the manufacturer is developing a
contains this proposed AD, the modification to address the unsafe
ACTION: Notice of proposed rulemaking
regulatory evaluation, any comments condition. That AD explains that we
(NPRM).
received, and other information. The might consider further rulemaking if a
SUMMARY: We propose to supersede street address for the Docket Office modification is developed, approved,
mstockstill on DSK30JT082PROD with PROPOSALS
Airworthiness Directive (AD) 2015–09– (phone: 800–647–5527) is in the and available. Since we issued AD
07, which applies to all The Boeing ADDRESSES section. Comments will be 2015–09–07, Boeing has developed new
Company Model 787 airplanes. AD available in the AD docket shortly after software for the Model 787 GCU that
2015–09–07 requires a repetitive receipt. addresses the software counter overflow
maintenance task for electrical power FOR FURTHER INFORMATION CONTACT: anomaly that prompted the issuance of
deactivation. Since we issued AD 2015– Stephen Oshiro, Aerospace Engineer, AD 2015–09–07. Installation of the new
09–07, Boeing has developed new Systems and Equipment Section, FAA, software eliminates the need for
software for the generator control unit Seattle ACO Branch, 1601 Lind Avenue performing the repetitive maintenance
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Document Created: 2017-08-15 01:12:42
Document Modified: 2017-08-15 01:12:42
| 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 | Proposed Rules | |
| Action | Notice of proposed rulemaking (NPRM). | |
| Dates | We must receive comments on this proposed AD by September 29, 2017. | |
| Contact | Aziz Ahmed, Airframe Engineer, Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228-7329; fax: 516-794-5531. | |
| FR Citation | 82 FR 38626 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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