83 FR 46670 - Airworthiness Directives; Bombardier, Inc., Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 179 (September 14, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 179 (September 14, 2018)
| Page Range | 46670-46676 | |
| FR Document | 2018-19759 |
[Federal Register Volume 83, Number 179 (Friday, September 14, 2018)] [Proposed Rules] [Pages 46670-46676] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-19759] [[Page 46670]] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0790; Product Identifier 2018-NM-078-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) 2010-14- 05, which applies to certain Bombardier, Inc., Model CL-600-1A11 (600), CL-600-2A12 (601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. AD 2010-14-05 requires inspection for the part numbers of the system and brake accumulators, and repetitive replacement of affected accumulators. Since we issued AD 2010-14-05, we have determined that new or more restrictive airworthiness limitations, as well as additional actions, are necessary to address the unsafe condition. In addition to the requirements of AD 2010-14-05, this proposed AD would require relocating the accumulators and revising the maintenance or inspection program to incorporate new or more restrictive airworthiness limitations. This proposed AD would also add optional terminating action for certain airplanes. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by October 29, 2018. 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; Widebody Customer Response Center North America toll- free telephone 1-866-538-1247 or direct-dial telephone 1-514-855-2999; 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, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. Examining the AD Docket You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018- 0790; 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 NPRM, 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: Neil Doh, Aerospace Engineer, Aviation Safety Section AIR-7B1, Boston ACO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; telephone 781-238-7757. 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-2018-0790; Product Identifier 2018-NM-078-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 We issued AD 2010-14-05, Amendment 39-16350 (75 FR 37994, July 1, 2010) (``AD 2010-14-05''), for certain Bombardier Model CL-600-1A11 (600), CL-600-2A12 (601), CL-600-2B16 (601-3A, 601-3R, and 604 Variants (including CL-605 Marketing Variant)) airplanes. AD 2010-14-05 requires an inspection to determine the part numbers of the system accumulators numbers 1, 2, and 3 and brake accumulators numbers 2 and 3, and repetitive replacement of the accumulator. AD 2010-14-05 resulted from reports of the on-ground failure of the hydraulic accumulator screw cap or end cap, resulting in loss of the associated hydraulic system and high-energy impact damage to adjacent systems and structure. We issued AD 2010-14-05 to address failure of one of the brake accumulator screw caps/end caps, resulting in impact damage causing loss of both hydraulic systems No. 2 and No. 3, with consequent loss of both braking and nose wheel steering and the potential for a runway excursion. Actions Since AD 2010-14-05 Was Issued Since we issued AD 2010-14-05, we have determined that new or more restrictive airworthiness limitations and additional actions are necessary to address the unsafe condition. Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian AD CF-2009-39R1, issued October 13, 2017 (referred to after this as the Mandatory Continuing Airworthiness Information, or ``the MCAI''), to correct an unsafe condition for certain Bombardier, Inc., Model CL-600-1A11 (600), CL- 600-2A12 (601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. The MCAI states: Seven cases of on-ground hydraulic accumulator screw cap or end cap failure have been experienced on CL-600-2B19 (CRJ) aircraft, resulting in loss of the associated hydraulic system and high-energy impact damage to adjacent systems and structure. The lowest number of flight cycles accumulated at the time of failure, to date, has been 6991 flight cycles. Although there have been no failures to date on any CL-600-1A11, CL-600-2A12 or CL-600-2B16 aircraft, the same accumulators as those installed on the CL-600-2B19, Part Numbers (P/N) 08-60163-002 and 08-60164-002 are installed on some of the aircraft listed in the Applicability section of this directive. Notes: 1. Earlier accumulators, P/Ns 2770571-102, 2770571-103, 2770571- 104 and 2770571-105, were installed in production on the following aircraft: CL-600-1A11 [all Serial Numbers (S/Ns)], CL-600-2A12 (all S/Ns) and CL-600-2B16 (S/Ns 5001 through 5194 and 5301 through 5524 only). These accumulators do not require inspection or replacement. However, if any of the accumulators with the above P/Ns have been replaced in-service by P/Ns 08-60163-002 and 08-60164-002, these latter accumulators require replacement. 2. Prior to issuance of [Canadian] AD CF-2009-39, the only accumulators ever installed in production on CL-600-2B16 [[Page 46671]] aircraft, S/Ns 5525 through 5665 and 5701 through 5908, are P/Ns 08- 60163-002 and 08-60164-002; these accumulators require replacement. 3. After issuance of [Canadian] AD CF-2009-39 [which corresponded to FAA AD 2010-14-05, Amendment 39-16350 (75 FR 37994, July 1, 2010)], accumulators with P/Ns specified in Note 2, above, began to feature various S/N suffixes. Only accumulators with S/N suffix ``TNAE'' do not require replacement, but they are subject to other mandatory actions detailed in this AD. 4. Stainless steel accumulators P/Ns 601R75139-3 (11094-4) and 601R75139-1 (11093-4) were installed in production on CL-600-2B16 aircraft, S/Ns 5909 and subsequent. These accumulators do not require replacement, but they are subjected to other mandatory actions detailed in this AD. A detailed analysis of the systems and structure in the potential line of trajectory of a failed screw cap/end cap for each accumulator, P/Ns 08-60163-002 and 08-60164-002, has been conducted. On the Challengers, it has been identified that the worst case scenario would be a failure of system No. 1, 2 or 3 accumulator screw caps/end caps (depending on the model), resulting in a potential uncontrolled fire in a non-designated fire zone. The original version of this [Canadian] AD gave instructions to perform identification and records checks, where applicable, and replace accumulators, P/Ns 08-60163-002 and 08-60164-002 within the time compliance specified. * * * * * The unsafe condition is potential impact damage that could cause loss of both hydraulic systems No. 2 and No. 3, and the consequent loss of both braking and nose wheel steering, the potential for a runway excursion, and damage to the airplane. Required actions include relocating certain accumulators. 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-2018-0790. Related Service Information Under 1 CFR Part 51 The following Bombardier service information describes procedures for replacing hydraulic system accumulators with new, overhauled, or refurbished accumulators. These documents are distinct since they apply to different airplane models. Service Bulletin 600-742, Revision 4, dated June 11, 2015 Service Bulletin 601-597, Revision 4, dated June 11, 2015 Service Bulletin 604-29-008, Revision 4, dated June 11, 2015 Service Bulletin 605-29-001, Revision 4, dated June 10, 2015 The following Bombardier service information describes procedures for relocating hydraulic system accumulators. These documents are distinct since they apply to different airplane models in different configurations. Service Bulletin 600-0764, dated October 8, 2015 Service Bulletin 600-0767, dated August 25, 2016 Service Bulletin 601-0633, dated October 8, 2015 Service Bulletin 601-0637, dated August 25, 2016 Service Bulletin 604-29-013, Revision 2, dated April 18, 2016 Service Bulletin 605-29-006, Revision 2, dated April 19, 2016 The following Bombardier Time Limits/Maintenance Checks describe certain systems life limits of the safe life items. These documents are distinct since they apply to different airplane models in different configurations. Bombardier Challenger 600 Time Limits/Maintenance Checks, PSP 605, Revision 39, dated January 8, 2018 Bombardier Challenger 601 Time Limits/Maintenance Checks, PSP 601-5, Revision 46, dated January 8, 2018 Bombardier Challenger 601 Time Limits/Maintenance Checks, PSP 601A-5, Revision 42, dated January 8, 2018 Bombardier Challenger 604 CL-604 Time Limits/Maintenance Checks, Revision 30, dated December 4, 2017 Bombardier Challenger CL-605 Time Limits/Maintenance Checks, Revision 18, dated December 4, 2017 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 designs. This proposed AD would require revisions to certain operator maintenance documents to include new actions (e.g., inspections). Compliance with these actions is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by this proposed AD, the operator may not be able to accomplish the actions described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance according to paragraph (n)(1) of this proposed AD. The request should include a description of changes to the required inspections that will ensure the continued operational safety of the airplane. Difference Between Proposed AD and MCAI Although the MCAI placed no restrictions on special flight permits, this proposed AD would limit ferry flights by requiring an engineering recommendation from Bombardier as well as approval from the Flight Standards District Office. This difference has been coordinated with TCCA. Costs of Compliance We estimate that this proposed AD affects 130 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: Estimated Costs for Required Actions ---------------------------------------------------------------------------------------------------------------- Labor cost Parts cost Cost per product Cost on U.S. operators ---------------------------------------------------------------------------------------------------------------- Retained actions: 20 work-hours x $7,717.............. $9,417............. $1,224,210. $85 per hour = $,1,700. New actions: Up to 170 work-hours Up to $41,635....... Up to $56,085...... Up to $7,291,050. x $85 per hour = Up to $14,450. ---------------------------------------------------------------------------------------------------------------- [[Page 46672]] For the new maintenance/inspection program revision, we have determined that this action takes an average of 90 work-hours per operator, although we recognize that this number may vary from operator to operator. In the past, we have estimated that this action takes 1 work-hour per airplane. Since operators incorporate maintenance or inspection program changes for their affected fleet, we have determined that a per-operator estimate is more accurate than a per-airplane estimate. Therefore, we estimate the total cost per operator to be $7,650 (90 work-hours x $85 per work-hour). According to the manufacturer, some or all 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 known 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 proposed 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, 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) 2010-14-05, Amendment 39-16350 (75 FR 37994, July 1, 2010), and adding the following new AD: Bombardier, Inc.: Docket No. FAA-2018-0790; Product Identifier 2018- NM-078-AD. (a) Comments Due Date We must receive comments by October 29, 2018. (b) Affected ADs This AD replaces AD 2010-14-05, Amendment 39-16350 (75 FR 37994, July 1, 2010) (``AD 2010-14-05''). (c) Applicability This AD applies to the Bombardier, Inc., airplanes, certificated in any category, identified in paragraphs (c)(1) through (c)(5) of this AD. (1) Model CL-600-1A11 (600) airplanes, serial numbers 1004 through 1085 inclusive. (2) Model CL-600-2A12 (601) airplanes, serial numbers 3001 through 3066 inclusive. (3) Model CL-600-2B16 airplanes (601-3A Variant), serial numbers 5001 through 5134 inclusive. (4) Model CL-600-2B16 airplanes (601-3R Variant), serial numbers 5135 through 5194 inclusive. (5) Model CL-600-2B16 airplanes (604 Variant), serial numbers 5301 through 5665 inclusive and 5701 and subsequent. Note 1 to paragraph (c) of this AD: Certain Model CL-600-2B16 (604 Variant) airplanes might be referred to by the marketing designation CL-605. (d) Subject Air Transport Association (ATA) of America Code 29, Hydraulic power. (e) Reason This AD was prompted by reports of on-ground hydraulic accumulator screw cap or end cap failure that resulted in the loss of the associated hydraulic system and high-energy impact damage to adjacent systems and structure. We are issuing this AD to address failure of one of the brake accumulator screw caps/end caps, which could result in impact damage causing loss of both hydraulic systems No. 2 and No. 3, and the consequent loss of both braking and nose wheel steering, the potential for a runway excursion, and damage to the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Retained Part Number Inspection and Accumulator Replacement, With Revised Formatting, Service Information, and Affected Part Numbers This paragraph restates the requirements of paragraph (g) of AD 2010-14-05, with revised formatting, service information, and affected part numbers. Do the following actions as applicable. (1) Within 50 flight hours after August 5, 2010 (the effective date of AD 2010-14-05), inspect to determine the part numbers of the system accumulators numbers 1, 2, and 3, and brake accumulators numbers 2 and 3 that are installed on the airplane. A review of airplane maintenance records is acceptable in lieu of this inspection if the part number of each accumulator can be conclusively determined from that review. If all of the installed accumulators have part number (P/N) 2770571-102, 2770571-103, 2770571-104, 2770571-105, 601R75139-3 (11094-4), or 601R75139-1 (11093-4), no further action is required by paragraph (g) of this AD. (2) Except as provided in paragraph (g)(1) of this AD: At the applicable time in paragraph (g)(2)(i), (g)(2)(ii), or (g)(2)(iii) of this AD, replace the accumulator with a new, overhauled, or refurbished accumulator with the same part number, in accordance with the Accomplishment Instructions of the applicable service bulletin listed in figure 1 to paragraphs (g)(2) and (g)(3) of this AD. (i) For each accumulator having P/Ns 08-60163-002 (601R75138-1), and 08-60164-002 (601R75138-3), as applicable, that has accumulated more than 3,650 total flight cycles as of August 5, 2010 (the effective date of AD 2010-14-05): Replace the accumulator within 100 flight cycles after August 5, 2010. (ii) For each accumulator having P/N 08-60163-002 (601R75138-1), and 08-60164-002 (601R75138-3), as applicable, that has accumulated 3,650 total flight cycles or fewer [[Page 46673]] as of August 5, 2010: Replace the accumulator before the accumulation of 3,750 total flight cycles on the accumulator. (iii) For each accumulator having P/N 08-60163-002 (601R75138- 1), and 08-60164-002 (601R75138-3), as applicable, for which it is not possible to determine the number of flight cycles accumulated: Replace the accumulator within 100 flight cycles after August 5, 2010. [GRAPHIC] [TIFF OMITTED] TP14SE18.000 (3) Thereafter, before the accumulation of 3,750 total flight cycles on any accumulator having P/Ns 08-60163-002 (601R75138-1), and 08-60164-002 (601R75138-3), as applicable, replace the accumulator with a new, overhauled, or refurbished accumulator having the same part number, in accordance with the Accomplishment Instructions of the applicable service bulletin listed in figure 1 to paragraphs (g)(2) and (g)(3) of this AD. (h) New Provision of This AD: Terminating Action for Certain Accumulators For each accumulator with one of the following part number and serial number (S/N) suffixes, the repetitive replacement specified in paragraphs (g)(2) and (g)(3) of this AD is not required. (1) P/N 08-60163-002 with S/N suffix TNAE (2) P/N 08-601-002 with S/N suffix TNAE (3) P/N 601R75139-3 (11094-4) (4) P/N 601R75139-1 (11093-4) (i) New Requirement of This AD: Relocation of Accumulators Within 60 months or 2,400 flight cycles, whichever occurs first after the effective date of this AD, relocate the hydraulic system accumulators as specified in paragraphs (i)(1) through (i)(4) of this AD, as applicable. Relocation of the hydraulic system accumulators as required by this paragraph does not terminate any repetitive replacement required by paragraph (g)(2) or (g)(3) of this AD. (1) For Model CL-600-1A11 (600) airplanes, S/Ns 1004 through 1085 inclusive: Relocate accumulators as specified in paragraphs (i)(1)(i) and (i)(1)(ii) of this AD. (i) Relocate hydraulic system Nos. 1 and 2 accumulators, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601-0764, dated October 8, 2015. (ii) Relocate hydraulic system No. 3 accumulator, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 600-0767, dated August 25, 2016. (2) For Model CL-600-2A12 (601) airplanes, S/Ns 3001 through 3066 inclusive, and Model CL-600-2B16 (601-3A and 601-3R Variants) airplanes, S/Ns 5001 through 5194 inclusive: Relocate accumulators as specified in paragraphs (i)(2)(i) and (i)(2)(ii) of this AD. (i) Relocate hydraulic system Nos. 1 and 2 accumulators, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601-0633, dated October 8, 2015. (ii) Relocate hydraulic system No. 3 accumulator, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601-0637, dated August 25, 2016. (3) For Model CL-600-2B16 (604 Variant) airplanes, S/Ns 5301 through 5665 inclusive: Relocate hydraulic system No. 3 accumulator, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 604-29-013, Revision 2, dated April 18, 2016. (4) For Model CL-600-2B16 (605) airplanes, S/Ns 5701 and subsequent (i.e., Model CL-600-2B16 (604 Variant), referred to by the marketing designation CL-605): Relocate hydraulic system No. 3 accumulator, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 605-29-006, Revision 2, dated April 19, 2016. (j) New Requirement of This AD: Revision of Maintenance/Inspection Program Within 50 flight hours after the effective date of this AD, revise the maintenance or inspection program, as applicable, to incorporate the tasks specified in figure 2 to paragraph (j) of this AD. [[Page 46674]] [GRAPHIC] [TIFF OMITTED] TP14SE18.001 (k) No Alternative Actions or Intervals After the maintenance or inspection program has been revised as required by paragraph (j) of this AD, no alternative actions (e.g., inspections) or intervals may be used unless the actions or intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (n)(1) of this AD. (l) Credit for Previous Actions (1) Replacement of an accumulator with a new accumulator having the same part number is also acceptable for compliance with the requirements of paragraphs (g)(2) and (g)(3) of this AD, if done before August 5, 2010 (the effective date of AD 2010-14-05), in accordance with the applicable service bulletin listed in figure 3 to paragraph (l)(1) of this AD. This service information is not incorporated by reference in this AD. [[Page 46675]] [GRAPHIC] [TIFF OMITTED] TP14SE18.002 (2) Replacement of an accumulator with a new accumulator having the same part number is also acceptable for compliance with the requirements of paragraphs (g)(2) and (g)(3) of this AD, if done before the effective date of this AD in accordance with the applicable service bulletin listed in figure 4 to paragraph (l)(2) of this AD. This service information is not incorporated by reference in this AD. [[Page 46676]] [GRAPHIC] [TIFF OMITTED] TP14SE18.003 (3) This paragraph provides credit for actions required by paragraph (i)(3) of this AD, if those actions were performed before the effective date of this AD, in accordance with Bombardier Service Bulletin 604-29-013, dated April 30, 2015; or Bombardier Service Bulletin 604-29-013, Revision 1, dated October 19, 2015. This service information is not incorporated by reference in this AD. (4) This paragraph provides credit for actions required by paragraph (i)(4) of this AD, if those actions were performed before the effective date of this AD, in accordance with Bombardier Service Bulletin 605-29-006, dated April 30, 2015; or Bombardier Service Bulletin 605-29-006, Revision 1, dated October 19, 2015. This service information is not incorporated by reference in this AD. (m) Special Flight Permit Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the airplane can be modified, provided the following conditions are met: (1) An engineering recommendation must be obtained via the Bombardier process Service Request for Product Support Action (SRPSA) at [email protected]. (2) Approval of the special flight permit must be obtained from the Flight Standards District Office. (n) Other FAA AD Provisions (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. (i) 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. (ii) AMOC 15-76R1 and AMOC 15-53, approved previously for AD 2010-14-05, are approved as AMOCs for the corresponding provisions of paragraph (g)(2) of this AD. (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 Transport Canada Civil Aviation (TCCA); or Bombardier's TCCA Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. (o) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian AD CF-2009-39R1, dated October 13, 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-2018-0790. (2) For more information about this AD, contact Neil Doh, Aerospace Engineer, Aviation Safety Section AIR-7B1, Boston ACO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; telephone 781-238-7757. (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; Widebody Customer Response Center North America toll-free telephone 1-866-538-1247 or direct-dial telephone 1-514-855-2999; fax 514-855-7401; email [email protected]; internet http://www.bombardier.com. You may view this service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. Issued in Des Moines, Washington, on August 24, 2018. James Cashdollar, Acting Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2018-19759 Filed 9-13-18; 8:45 am] BILLING CODE 4910-13-P
![46670 Federal Register / Vol. 83, No. 179 / Friday, September 14, 2018 / Proposed Rules
DEPARTMENT OF TRANSPORTATION 1247 or direct-dial telephone 1–514– accumulators numbers 1, 2, and 3 and
855–2999; fax 514–855–7401; email brake accumulators numbers 2 and 3,
Federal Aviation Administration ac.yul@aero.bombardier.com; internet and repetitive replacement of the
http://www.bombardier.com. You may accumulator. AD 2010–14–05 resulted
14 CFR Part 39 view this referenced service information from reports of the on-ground failure of
[Docket No. FAA–2018–0790; Product at the FAA, Transport Standards the hydraulic accumulator screw cap or
Identifier 2018–NM–078–AD] Branch, 2200 South 216th St., Des end cap, resulting in loss of the
Moines, WA. For information on the associated hydraulic system and high-
RIN 2120–AA64 availability of this material at the FAA, energy impact damage to adjacent
call 206–231–3195. systems and structure. We issued AD
Airworthiness Directives; Bombardier,
Examining the AD Docket 2010–14–05 to address failure of one of
Inc., Airplanes
the brake accumulator screw caps/end
AGENCY: Federal Aviation You may examine the AD docket on caps, resulting in impact damage
Administration (FAA), DOT. the internet at http:// causing loss of both hydraulic systems
www.regulations.gov by searching for No. 2 and No. 3, with consequent loss
ACTION: Notice of proposed rulemaking
and locating Docket No. FAA–2018– of both braking and nose wheel steering
(NPRM). 0790; or in person at the Docket and the potential for a runway
SUMMARY: We propose to supersede Management Facility between 9 a.m. excursion.
Airworthiness Directive (AD) 2010–14– and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket Actions Since AD 2010–14–05 Was
05, which applies to certain
contains this NPRM, the regulatory Issued
Bombardier, Inc., Model CL–600–1A11
(600), CL–600–2A12 (601), and CL–600– evaluation, any comments received, and Since we issued AD 2010–14–05, we
2B16 (601–3A, 601–3R, and 604 other information. The street address for have determined that new or more
Variants) airplanes. AD 2010–14–05 the Docket Operations office (telephone restrictive airworthiness limitations and
requires inspection for the part numbers 800–647–5527) is in the ADDRESSES additional actions are necessary to
of the system and brake accumulators, section. Comments will be available in address the unsafe condition.
and repetitive replacement of affected the AD docket shortly after receipt. Transport Canada Civil Aviation
accumulators. Since we issued AD FOR FURTHER INFORMATION CONTACT: Neil (TCCA), which is the aviation authority
2010–14–05, we have determined that Doh, Aerospace Engineer, Aviation for Canada, has issued Canadian AD
new or more restrictive airworthiness Safety Section AIR–7B1, Boston ACO CF–2009–39R1, issued October 13, 2017
limitations, as well as additional Branch, FAA, 1200 District Avenue, (referred to after this as the Mandatory
actions, are necessary to address the Burlington, MA 01803; telephone 781– Continuing Airworthiness Information,
unsafe condition. In addition to the 238–7757. or ‘‘the MCAI’’), to correct an unsafe
requirements of AD 2010–14–05, this SUPPLEMENTARY INFORMATION: condition for certain Bombardier, Inc.,
proposed AD would require relocating Model CL–600–1A11 (600), CL–600–
Comments Invited
the accumulators and revising the 2A12 (601), and CL–600–2B16 (601–3A,
maintenance or inspection program to We invite you to send any written 601–3R, and 604 Variants) airplanes.
incorporate new or more restrictive relevant data, views, or arguments about The MCAI states:
airworthiness limitations. This this proposal. Send your comments to
Seven cases of on-ground hydraulic
proposed AD would also add optional an address listed under the ADDRESSES accumulator screw cap or end cap failure
terminating action for certain airplanes. section. Include ‘‘Docket No. FAA– have been experienced on CL–600–2B19
We are proposing this AD to address the 2018–0790; Product Identifier 2018– (CRJ) aircraft, resulting in loss of the
unsafe condition on these products. NM–078–AD’’ at the beginning of your associated hydraulic system and high-energy
comments. We specifically invite impact damage to adjacent systems and
DATES: We must receive comments on comments on the overall regulatory, structure. The lowest number of flight cycles
this proposed AD by October 29, 2018. economic, environmental, and energy accumulated at the time of failure, to date,
ADDRESSES: You may send comments, has been 6991 flight cycles.
aspects of this proposed AD. We will Although there have been no failures to
using the procedures found in 14 CFR consider all comments received by the date on any CL–600–1A11, CL–600–2A12 or
11.43 and 11.45, by any of the following closing date and may amend this CL–600–2B16 aircraft, the same accumulators
methods: proposed AD based on those comments. as those installed on the CL–600–2B19, Part
• Federal eRulemaking Portal: Go to We will post all comments we Numbers (P/N) 08–60163–002 and 08–
http://www.regulations.gov. Follow the receive, without change, to http:// 60164–002 are installed on some of the
instructions for submitting comments. www.regulations.gov, including any aircraft listed in the Applicability section of
• Fax: 202–493–2251. personal information you provide. We this directive.
• Mail: U.S. Department of will also post a report summarizing each Notes:
Transportation, Docket Operations, 1. Earlier accumulators, P/Ns 2770571–
substantive verbal contact we receive 102, 2770571–103, 2770571–104 and
M–30, West Building Ground Floor, about this proposed AD. 2770571–105, were installed in production
Room W12–140, 1200 New Jersey on the following aircraft: CL–600–1A11 [all
Avenue SE, Washington, DC 20590. Discussion
Serial Numbers (S/Ns)], CL–600–2A12 (all S/
• Hand Delivery: Deliver to Mail We issued AD 2010–14–05, Ns) and CL–600–2B16 (S/Ns 5001 through
address above between 9 a.m. and 5 Amendment 39–16350 (75 FR 37994, 5194 and 5301 through 5524 only). These
daltland on DSKBBV9HB2PROD with PROPOSALS
p.m., Monday through Friday, except July 1, 2010) (‘‘AD 2010–14–05’’), for accumulators do not require inspection or
Federal holidays. certain Bombardier Model CL–600– replacement. However, if any of the
For service information identified in 1A11 (600), CL–600–2A12 (601), CL– accumulators with the above P/Ns have been
replaced in-service by P/Ns 08–60163–002
this NPRM, contact Bombardier, Inc., 600–2B16 (601–3A, 601–3R, and 604 and 08–60164–002, these latter accumulators
400 Côte-Vertu Road West, Dorval, Variants (including CL–605 Marketing require replacement.
Québec H4S 1Y9, Canada; Widebody Variant)) airplanes. AD 2010–14–05 2. Prior to issuance of [Canadian] AD CF–
Customer Response Center North requires an inspection to determine the 2009–39, the only accumulators ever
America toll-free telephone 1–866–538– part numbers of the system installed in production on CL–600–2B16
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![Federal Register / Vol. 83, No. 179 / Friday, September 14, 2018 / Proposed Rules 46671
aircraft, S/Ns 5525 through 5665 and 5701 • Service Bulletin 600–742, Revision 4, FAA’s Determination and Requirements
through 5908, are P/Ns 08–60163–002 and dated June 11, 2015 of This Proposed AD
08–60164–002; these accumulators require • Service Bulletin 601–597, Revision 4,
replacement. This product has been approved by
3. After issuance of [Canadian] AD CF–
dated June 11, 2015
• Service Bulletin 604–29–008, the aviation authority of another
2009–39 [which corresponded to FAA AD
2010–14–05, Amendment 39–16350 (75 FR Revision 4, dated June 11, 2015 country, and is approved for operation
37994, July 1, 2010)], accumulators with P/ • Service Bulletin 605–29–001, in the United States. Pursuant to our
Ns specified in Note 2, above, began to Revision 4, dated June 10, 2015 bilateral agreement with the State of
feature various S/N suffixes. Only
The following Bombardier service Design Authority, we have been notified
accumulators with S/N suffix ‘‘TNAE’’ do not of the unsafe condition described in the
require replacement, but they are subject to information describes procedures for
relocating hydraulic system MCAI and service information
other mandatory actions detailed in this AD.
4. Stainless steel accumulators P/Ns accumulators. These documents are referenced above. We are proposing this
601R75139–3 (11094–4) and 601R75139–1 distinct since they apply to different AD because we evaluated all pertinent
(11093–4) were installed in production on airplane models in different information and determined an unsafe
CL–600–2B16 aircraft, S/Ns 5909 and configurations. condition exists and is likely to exist or
subsequent. These accumulators do not develop on other products of the same
require replacement, but they are subjected to • Service Bulletin 600–0764, dated
type designs.
other mandatory actions detailed in this AD. October 8, 2015
A detailed analysis of the systems and • Service Bulletin 600–0767, dated This proposed AD would require
structure in the potential line of trajectory of August 25, 2016 revisions to certain operator
a failed screw cap/end cap for each • Service Bulletin 601–0633, dated maintenance documents to include new
accumulator, P/Ns 08–60163–002 and 08– October 8, 2015 actions (e.g., inspections). Compliance
60164–002, has been conducted. On the
Challengers, it has been identified that the • Service Bulletin 601–0637, dated with these actions is required by 14 CFR
worst case scenario would be a failure of August 25, 2016 91.403(c). For airplanes that have been
system No. 1, 2 or 3 accumulator screw caps/ • Service Bulletin 604–29–013, previously modified, altered, or repaired
end caps (depending on the model), resulting Revision 2, dated April 18, 2016 in the areas addressed by this proposed
in a potential uncontrolled fire in a non- • Service Bulletin 605–29–006, AD, the operator may not be able to
designated fire zone. Revision 2, dated April 19, 2016 accomplish the actions described in the
The original version of this [Canadian] AD revisions. In this situation, to comply
gave instructions to perform identification The following Bombardier Time
and records checks, where applicable, and Limits/Maintenance Checks describe with 14 CFR 91.403(c), the operator
replace accumulators, P/Ns 08–60163–002 certain systems life limits of the safe life must request approval for an alternative
and 08–60164–002 within the time items. These documents are distinct method of compliance according to
compliance specified. since they apply to different airplane paragraph (n)(1) of this proposed AD.
* * * * * models in different configurations. The request should include a
The unsafe condition is potential description of changes to the required
• Bombardier Challenger 600 Time
impact damage that could cause loss of inspections that will ensure the
Limits/Maintenance Checks, PSP 605,
both hydraulic systems No. 2 and No. 3, continued operational safety of the
Revision 39, dated January 8, 2018
and the consequent loss of both braking airplane.
• Bombardier Challenger 601 Time
and nose wheel steering, the potential Limits/Maintenance Checks, PSP Difference Between Proposed AD and
for a runway excursion, and damage to 601–5, Revision 46, dated January 8, MCAI
the airplane. Required actions include 2018
relocating certain accumulators. You
• Bombardier Challenger 601 Time Although the MCAI placed no
may examine the MCAI in the AD restrictions on special flight permits,
Limits/Maintenance Checks, PSP
docket on the internet at http:// this proposed AD would limit ferry
601A–5, Revision 42, dated January 8,
www.regulations.gov by searching for flights by requiring an engineering
2018
and locating Docket No. FAA–2018–
• Bombardier Challenger 604 CL–604 recommendation from Bombardier as
0790. well as approval from the Flight
Time Limits/Maintenance Checks,
Related Service Information Under 1 Revision 30, dated December 4, 2017 Standards District Office. This
CFR Part 51 • Bombardier Challenger CL–605 Time difference has been coordinated with
The following Bombardier service Limits/Maintenance Checks, Revision TCCA.
information describes procedures for 18, dated December 4, 2017
Costs of Compliance
replacing hydraulic system This service information is reasonably
accumulators with new, overhauled, or available because the interested parties We estimate that this proposed AD
refurbished accumulators. These have access to it through their normal affects 130 airplanes of U.S. registry. We
documents are distinct since they apply course of business or by the means estimate the following costs to comply
to different airplane models. identified in the ADDRESSES section. with this proposed AD:
ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost Parts cost Cost per product Cost on U.S. operators
daltland on DSKBBV9HB2PROD with PROPOSALS
Retained actions: 20 work-hours × $7,717 ................................................ $9,417 ................................................ $1,224,210.
$85 per hour = $,1,700.
New actions: Up to 170 work-hours × Up to $41,635 .................................... Up to $56,085 .................................... Up to $7,291,050.
$85 per hour = Up to $14,450.
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![46672 Federal Register / Vol. 83, No. 179 / Friday, September 14, 2018 / Proposed Rules
For the new maintenance/inspection the relationship between the national (5) Model CL–600–2B16 airplanes (604
program revision, we have determined Government and the States, or on the Variant), serial numbers 5301 through 5665
that this action takes an average of 90 distribution of power and inclusive and 5701 and subsequent.
work-hours per operator, although we responsibilities among the various Note 1 to paragraph (c) of this AD: Certain
recognize that this number may vary levels of government. Model CL–600–2B16 (604 Variant) airplanes
For the reasons discussed above, I might be referred to by the marketing
from operator to operator. In the past,
designation CL–605.
we have estimated that this action takes certify this proposed regulation:
1 work-hour per airplane. Since 1. Is not a ‘‘significant regulatory (d) Subject
operators incorporate maintenance or action’’ under Executive Order 12866, Air Transport Association (ATA) of
inspection program changes for their 2. Is not a ‘‘significant rule’’ under the America Code 29, Hydraulic power.
affected fleet, we have determined that DOT Regulatory Policies and Procedures
a per-operator estimate is more accurate (44 FR 11034, February 26, 1979), (e) Reason
than a per-airplane estimate. Therefore, 3. Will not affect intrastate aviation in This AD was prompted by reports of on-
we estimate the total cost per operator Alaska, and ground hydraulic accumulator screw cap or
to be $7,650 (90 work-hours x $85 per 4. Will not have a significant end cap failure that resulted in the loss of the
economic impact, positive or negative, associated hydraulic system and high-energy
work-hour). impact damage to adjacent systems and
According to the manufacturer, some on a substantial number of small entities
structure. We are issuing this AD to address
or all of the costs of this proposed AD under the criteria of the Regulatory failure of one of the brake accumulator screw
may be covered under warranty, thereby Flexibility Act. caps/end caps, which could result in impact
reducing the cost impact on affected List of Subjects in 14 CFR Part 39 damage causing loss of both hydraulic
individuals. We do not control warranty systems No. 2 and No. 3, and the consequent
coverage for affected individuals. As a Air transportation, Aircraft, Aviation loss of both braking and nose wheel steering,
result, we have included all known safety, Incorporation by reference, the potential for a runway excursion, and
costs in our cost estimate. Safety. damage to the airplane.
The Proposed Amendment (f) Compliance
Authority for This Rulemaking
Accordingly, under the authority Comply with this AD within the
Title 49 of the United States Code compliance times specified, unless already
specifies the FAA’s authority to issue delegated to me by the Administrator,
done.
rules on aviation safety. Subtitle I, the FAA proposes to amend 14 CFR part
section 106, describes the authority of 39 as follows: (g) Retained Part Number Inspection and
Accumulator Replacement, With Revised
the FAA Administrator. Subtitle VII: Formatting, Service Information, and
Aviation Programs, describes in more PART 39—AIRWORTHINESS
DIRECTIVES Affected Part Numbers
detail the scope of the Agency’s
This paragraph restates the requirements of
authority. ■ 1. The authority citation for part 39 paragraph (g) of AD 2010–14–05, with
We are issuing this rulemaking under continues to read as follows: revised formatting, service information, and
the authority described in Subtitle VII, affected part numbers. Do the following
Part A, Subpart III, Section 44701: Authority: 49 U.S.C. 106(g), 40113, 44701.
actions as applicable.
‘‘General requirements.’’ Under that § 39.13 [Amended] (1) Within 50 flight hours after August 5,
section, Congress charges the FAA with ■ 2. The FAA amends § 39.13 by 2010 (the effective date of AD 2010–14–05),
promoting safe flight of civil aircraft in inspect to determine the part numbers of the
removing Airworthiness Directive (AD) system accumulators numbers 1, 2, and 3,
air commerce by prescribing regulations 2010–14–05, Amendment 39–16350 (75
for practices, methods, and procedures and brake accumulators numbers 2 and 3 that
FR 37994, July 1, 2010), and adding the are installed on the airplane. A review of
the Administrator finds necessary for following new AD: airplane maintenance records is acceptable in
safety in air commerce. This regulation lieu of this inspection if the part number of
is within the scope of that authority Bombardier, Inc.: Docket No. FAA–2018–
0790; Product Identifier 2018–NM–078– each accumulator can be conclusively
because it addresses an unsafe condition determined from that review. If all of the
AD.
that is likely to exist or develop on installed accumulators have part number
products identified in this rulemaking (a) Comments Due Date (P/N) 2770571–102, 2770571–103, 2770571–
action. We must receive comments by October 29, 104, 2770571–105, 601R75139–3 (11094–4),
This proposed AD is issued in 2018. or 601R75139–1 (11093–4), no further action
accordance with authority delegated by is required by paragraph (g) of this AD.
(b) Affected ADs (2) Except as provided in paragraph (g)(1)
the Executive Director, Aircraft
This AD replaces AD 2010–14–05, of this AD: At the applicable time in
Certification Service, as authorized by
Amendment 39–16350 (75 FR 37994, July 1, paragraph (g)(2)(i), (g)(2)(ii), or (g)(2)(iii) of
FAA Order 8000.51C. In accordance this AD, replace the accumulator with a new,
2010) (‘‘AD 2010–14–05’’).
with that order, issuance of ADs is overhauled, or refurbished accumulator with
normally a function of the Compliance (c) Applicability the same part number, in accordance with
and Airworthiness Division, but during This AD applies to the Bombardier, Inc., the Accomplishment Instructions of the
this transition period, the Executive airplanes, certificated in any category, applicable service bulletin listed in figure 1
Director has delegated the authority to identified in paragraphs (c)(1) through (c)(5) to paragraphs (g)(2) and (g)(3) of this AD.
issue ADs applicable to transport of this AD. (i) For each accumulator having P/Ns 08–
category airplanes to the Director of the (1) Model CL–600–1A11 (600) airplanes, 60163–002 (601R75138–1), and 08–60164–
daltland on DSKBBV9HB2PROD with PROPOSALS
serial numbers 1004 through 1085 inclusive. 002 (601R75138–3), as applicable, that has
System Oversight Division.
(2) Model CL–600–2A12 (601) airplanes, accumulated more than 3,650 total flight
Regulatory Findings serial numbers 3001 through 3066 inclusive. cycles as of August 5, 2010 (the effective date
(3) Model CL–600–2B16 airplanes (601–3A of AD 2010–14–05): Replace the accumulator
We determined that this proposed AD Variant), serial numbers 5001 through 5134 within 100 flight cycles after August 5, 2010.
would not have federalism implications inclusive. (ii) For each accumulator having P/N 08–
under Executive Order 13132. This (4) Model CL–600–2B16 airplanes (601–3R 60163–002 (601R75138–1), and 08–60164–
proposed AD would not have a Variant), serial numbers 5135 through 5194 002 (601R75138–3), as applicable, that has
substantial direct effect on the States, on inclusive. accumulated 3,650 total flight cycles or fewer
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Document Created: 2018-09-14 03:03:18
Document Modified: 2018-09-14 03:03:18
| 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 October 29, 2018. | |
| Contact | Neil Doh, Aerospace Engineer, Aviation Safety Section AIR-7B1, Boston ACO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; telephone 781-238-7757. | |
| FR Citation | 83 FR 46670 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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