81 FR 13298 - Airworthiness Directives; Bombardier, Inc. Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 81, Issue 49 (March 14, 2016)
Federal Aviation Administration
Federal Register Volume 81, Issue 49 (March 14, 2016)
| Page Range | 13298-13300 | |
| FR Document | 2016-05607 |
[Federal Register Volume 81, Number 49 (Monday, March 14, 2016)] [Proposed Rules] [Pages 13298-13300] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2016-05607] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2016-4224; Directorate Identifier 2015-NM-170-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 adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-400 airplanes. This proposed AD was prompted by one in-service report of a cracked and corroded barrel nut found at the mid-spar location of the horizontal stabilizer to vertical stabilizer attachment joint. There have also been two other reports of corroded barrel nuts found at mid-spar locations. This proposed AD would require repetitive detailed inspections of each barrel nut and cradle, a check of the bolt torque of any preload indicating washer (PLI), and corrective action if necessary. We are proposing this AD to detect and correct cracked and corroded barrel nuts. This condition could compromise the structural integrity of the vertical stabilizer attachment joints, which could lead to loss of control of the airplane. DATES: We must receive comments on this proposed AD by April 28, 2016. 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: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375- 4539; email [email protected]; Internet http://www.bombardier.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. 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-2016- 4224; 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, Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury, N Y 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 proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2016-4224; Directorate Identifier 2015-NM-170-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 Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian Airworthiness Directive CF- 2015-13, dated June 25, 2015 (referred to after this as the Mandatory Continuing Airworthiness Information, or ``the MCAI''), to correct an unsafe condition for certain Bombardier, Inc. Model DHC-8-400 airplanes. The MCAI states: There has been one in-service report of a cracked and corroded barrel nut, part number (P/N) DSC228-12, found at the mid-spar location of the horizontal stabilizer to vertical stabilizer attachment joint. There have also been two other reports of corroded barrel nuts found at mid-spar locations. Preliminary investigation determined that the cracking is initiated by corrosion. The corrosion may have been caused by inadequate cadmium plating on the barrel nut. Failure of the barrel nuts could compromise the structural integrity of the joint and could lead to loss of control of the aeroplane. This [Canadian] AD mandates initial and repetitive inspections of the barrel nuts [and cradles for cracks and corrosion] at each horizontal stabilizer to vertical stabilizer attachment joints. Required actions include a bolt preload check of any PLI washers and applicable corrective actions (retorque of the bolts and replacement of the barrel nut), a detailed inspection of cracked or broken barrel nuts for damaged bores of the fittings, replacement of barrel nuts, and repair of damage and corrosion. 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-2016- 4224. Related Service Information Under 1 CFR Part 51 Bombardier, Inc. has issued Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015. The service information describes procedures for a detailed inspection of the barrel nuts and cradles for cracks and corrosion, a bolt preload check of any PLI washers and applicable corrective actions, a detailed inspection for corrosion and damage of the bores of the fittings, replacement of the barrel nuts, and repair of damage and corrosion. Bombardier has issued Bombardier Repair Drawing (RD) 8/4-55-1143, Issue 1, dated May 21, 2015. The service information describes procedures for repairing corrosion and damage of the bore of the fitting. This service information is reasonably available because the interested parties have access to it through their normal [[Page 13299]] 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 76 airplanes of U.S. registry. We also estimate that it would take about 6 work-hours per product to comply with the basic requirements of this proposed AD and 1 work- hour per product for reporting. The average labor rate is $85 per work- hour. Required parts would cost about $0 per product. Based on these figures, we estimate the cost of this proposed AD on U.S. operators to be $45,220, or $595 per product. In addition, we estimate that any necessary follow-on actions would take about 4 work-hours, and require parts costing $8,881, for a cost of $9,221 per product. We have no way of determining the number of aircraft that might need this action. Paperwork Reduction Act A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB control number. The control number for the collection of information required by this proposed AD is 2120-0056. The paperwork cost associated with this proposed AD has been detailed in the Costs of Compliance section of this document and includes time for reviewing instructions, as well as completing and reviewing the collection of information. Therefore, all reporting associated with this proposed AD is mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at 800 Independence Ave. SW., Washington, DC 20591, ATTN: Information Collection Clearance Officer, AES-200. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. ``Subtitle VII: Aviation Programs,'' describes in more detail the scope of the Agency's authority. We are issuing this rulemaking under the authority described in ``Subtitle VII, Part A, Subpart III, Section 44701: General requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings 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 adding the following new airworthiness directive (AD): Bombardier, Inc.: Docket No. FAA-2016-4224; Directorate Identifier 2015-NM-170-AD. (a) Comments Due Date We must receive comments by April 28, 2016. (b) Affected ADs None. (c) Applicability This AD applies to Bombardier, Inc. Model DHC-8-400 airplanes, certificated in any category, serial numbers 4001 and subsequent. (d) Subject Air Transport Association (ATA) of America Code 55, Stablizers. (e) Reason This AD was prompted by one in-service report of a cracked and corroded barrel nut, part number DSC228-12, found at the mid-spar location of the horizontal stabilizer to vertical stabilizer attachment joint. There have also been two other reports of corroded barrel nuts found at mid-spar locations. We are issuing this AD to detect and correct cracked and corroded barrel nuts. This condition could compromise the structural integrity of the vertical stabilizer attachment joints, which could lead to loss of control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Detailed Inspection of Barrel Nuts for Cracks and Corrosion (1) For airplanes that have accumulated 5,400 flight hours or more, or have been in service 32 months or more since the date of issuance of the original certificate of airworthiness or the date of issuance of the original export certificate of airworthiness as of the effective date of this AD: Within 600 flight hours or 4 months, whichever occurs first, after the effective date of this AD, do a detailed visual inspection for signs of cracks and corrosion of the barrel nut and cradle, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015. (2) For airplanes that have less than 5,400 flight hours, and have been in-service for less than 32 months since the date of issuance of the original certificate of airworthiness or the date of issuance of the original export certificate of airworthiness as of the effective date of this AD: Before the accumulation of 6,000 total flight hours or 36 months since the date of issuance of the original certificate of airworthiness or the date of issuance of the original export certificate of airworthiness, whichever occurs first, do a detailed visual inspection of the barrel nut for signs of cracks and corrosion of the barrel nut and cradle, in [[Page 13300]] accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015. (h) Corrective Actions, Detailed Inspection, and Repetitive Inspections Depending on the findings of any inspection required by paragraphs (g) and (j) of this AD, do the applicable actions in paragraphs (h)(1), (h)(2), and (h)(3) of this AD. (1) If any barrel nut or cradle is found cracked or broken, before further flight, replace the barrel nut and associated hardware, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015. (i) Concurrently with the replacement of any barrel nut, do a detailed inspection for corrosion and damage of the bore of the fitting, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015, and, before further flight, repair all corrosion and damage, in accordance with Bombardier Repair Drawing (RD) RD 8/4-55- 1143, Issue 1, dated May 21, 2015. If the bore of the fitting cannot be repaired in accordance with Bombardier RD 8/4-55-1143, Issue 1, dated May 21, 2015, repair before further flight using a method approved by the Manager, New York ACO, ANE-170, FAA; or Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.'s TCCA Design Approval Organization (DAO). (ii) Within 600 flight hours or 4 months, whichever occurs first, after the replacement of a cracked barrel nut, replace the remaining barrel nuts and their associated hardware at the horizontal stabilizer to vertical stabilizer attachment joints, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015. (2) If any corrosion is found on any barrel nut on the front or rear-spar joints, before further flight, replace the barrel nut using a method approved by the Manager, New York ACO, ANE-170, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO. (3) If any corrosion above level 1, as defined in Bombardier Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015, is found on a barrel nut at the mid-spar joint, before further flight, replace the barrel nut using a method approved by the Manager, New York ACO, ANE-170, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO. (4) If all corrosion found is at level 1 or below, as defined in Bombardier Service Bulletin A84-55-04, Revision A, dated June 2, 2015, on a barrel nut at the mid-spar joint, repeat the inspection specified in paragraph (g) of this AD at intervals not to exceed 600 flight hours or 4 months, whichever occurs first, until completion of the actions required by paragraph (k) of this AD. (i) Preload Indicating (PLI) Washers Check For airplanes with PLI washers installed at the front and rear spar joints, before further flight after accomplishing any inspection required by (g) of this AD and all applicable corrective actions required by paragraph (h) of this AD, check the bolt preload, and do all applicable corrective actions, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015. Do all applicable corrective actions before further flight. (j) Repetitive Inspection Interval Repeat the inspection and preload check required by paragraphs (g) and (i) of this AD at intervals not to exceed 3,600 flight hours or 18 months, whichever occurs first, except as provided by paragraph (k) of this AD. (k) Optional Barrel Nut Replacement Inspection and replacement of all barrel nuts at the horizontal stabilizer to vertical stabilizer attachment joints, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015, extends the next inspection required by paragraph (j) of this AD to within 6,000 flight hours or 36 months, whichever occurs first, after accomplishing the replacement. (l) Reporting Requirements At the applicable time specified in paragraph (l)(1) or (l)(2) of this AD, submit a report of the findings (both positive and negative) of each inspection required by this AD to Technical Help Desk--Qseries, telephone: 416-375-4000, fax: 416-375-4539, email: [email protected], using the inspection form in Bombardier Alert Service Bulletin A84-55-04, Revision A, dated June 2, 2015. (1) If the inspection was done on or after the effective date of this AD: Submit the report within 30 days after the inspection. (2) If the inspection was done before the effective date of this AD: Submit the report within 30 days after the effective date of this AD. (m) Credit for Previous Actions This paragraph provides credit for actions required by paragraph (g) of this AD, if those actions were performed before the effective date of this AD using Bombardier Alert Service Bulletin A84-55-04, dated May 21, 2015, which is not incorporated by reference in this AD. (n) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York ACO, ANE-170, 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 ACO, send it to ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO, 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. The AMOC approval letter must specifically reference 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, ANE-170, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO. If approved by the DAO, the approval must include the DAO-authorized signature. (3) Reporting Requirements: A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES-200. (o) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian Airworthiness Directive CF-2015-13, dated June 25, 2015, 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-2016-4224. (2) For service information identified in this AD, contact Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375-4539; email [email protected]; Internet http://www.bombardier.com. You may view this service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. Issued in Renton, Washington, on March 3, 2016. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016-05607 Filed 3-11-16; 8:45 am] BILLING CODE 4910-13-P
![13298 Federal Register / Vol. 81, No. 49 / Monday, March 14, 2016 / Proposed Rules
For the Nuclear Regulatory Commission. p.m., Monday through Friday, except Discussion
Victor M. McCree, Federal holidays. Transport Canada Civil Aviation
Executive Director of Operations. For service information identified in (TCCA), which is the aviation authority
[FR Doc. 2016–05709 Filed 3–11–16; 8:45 am] this proposed AD, contact Bombardier, for Canada, has issued Canadian
BILLING CODE 7590–01–P Inc., Q-Series Technical Help Desk, 123 Airworthiness Directive CF–2015–13,
Garratt Boulevard, Toronto, Ontario dated June 25, 2015 (referred to after
M3K 1Y5, Canada; telephone 416–375– this as the Mandatory Continuing
DEPARTMENT OF TRANSPORTATION 4000; fax 416–375–4539; email Airworthiness Information, or ‘‘the
thd.qseries@aero.bombardier.com; MCAI’’), to correct an unsafe condition
Federal Aviation Administration Internet http://www.bombardier.com. for certain Bombardier, Inc. Model
You may view this referenced service DHC–8–400 airplanes. The MCAI states:
14 CFR Part 39 information at the FAA, Transport There has been one in-service report of a
Airplane Directorate, 1601 Lind Avenue cracked and corroded barrel nut, part number
[Docket No. FAA–2016–4224; Directorate
Identifier 2015–NM–170–AD]
SW., Renton, WA. For information on (P/N) DSC228–12, found at the mid-spar
the availability of this material at the location of the horizontal stabilizer to vertical
RIN 2120–AA64 FAA, call 425–227–1221. stabilizer attachment joint. There have also
been two other reports of corroded barrel
Airworthiness Directives; Bombardier, Examining the AD Docket nuts found at mid-spar locations.
Inc. Airplanes Preliminary investigation determined that
You may examine the AD docket on the cracking is initiated by corrosion. The
AGENCY: Federal Aviation the Internet at http:// corrosion may have been caused by
Administration (FAA), DOT. www.regulations.gov by searching for inadequate cadmium plating on the barrel
ACTION: Notice of proposed rulemaking and locating Docket No. FAA–2016– nut. Failure of the barrel nuts could
(NPRM). 4224; or in person at the Docket compromise the structural integrity of the
Management Facility between 9 a.m. joint and could lead to loss of control of the
SUMMARY: We propose to adopt a new and 5 p.m., Monday through Friday, aeroplane.
airworthiness directive (AD) for certain except Federal holidays. The AD docket This [Canadian] AD mandates initial and
repetitive inspections of the barrel nuts [and
Bombardier, Inc. Model DHC–8–400 contains this proposed AD, the cradles for cracks and corrosion] at each
airplanes. This proposed AD was regulatory evaluation, any comments horizontal stabilizer to vertical stabilizer
prompted by one in-service report of a received, and other information. The attachment joints.
cracked and corroded barrel nut found street address for the Docket Operations
at the mid-spar location of the office (telephone 800–647–5527) is in Required actions include a bolt
horizontal stabilizer to vertical stabilizer the ADDRESSES section. Comments will preload check of any PLI washers and
attachment joint. There have also been be available in the AD docket shortly applicable corrective actions (retorque
two other reports of corroded barrel nuts after receipt. of the bolts and replacement of the
found at mid-spar locations. This barrel nut), a detailed inspection of
FOR FURTHER INFORMATION CONTACT: Aziz cracked or broken barrel nuts for
proposed AD would require repetitive
Ahmed, Aerospace Engineer, Airframe damaged bores of the fittings,
detailed inspections of each barrel nut
and Mechanical Systems Branch, ANE– replacement of barrel nuts, and repair of
and cradle, a check of the bolt torque of
171, FAA, New York Aircraft damage and corrosion.
any preload indicating washer (PLI),
Certification Office (ACO), 1600 Stewart You may examine the MCAI in the
and corrective action if necessary. We
Avenue, Suite 410, Westbury, N Y AD docket on the Internet at http://
are proposing this AD to detect and
11590; telephone 516–228–7329; fax www.regulations.gov by searching for
correct cracked and corroded barrel
516–794–5531. and locating Docket No. FAA–2016–
nuts. This condition could compromise
the structural integrity of the vertical SUPPLEMENTARY INFORMATION: 4224.
stabilizer attachment joints, which Related Service Information Under 1
could lead to loss of control of the Comments Invited
CFR Part 51
airplane. We invite you to send any written Bombardier, Inc. has issued Alert
DATES: We must receive comments on relevant data, views, or arguments about Service Bulletin A84–55–04, Revision
this proposed AD by April 28, 2016. this proposed AD. Send your comments A, dated June 2, 2015. The service
ADDRESSES: You may send comments, to an address listed under the information describes procedures for a
using the procedures found in 14 CFR ADDRESSES section. Include ‘‘Docket No. detailed inspection of the barrel nuts
11.43 and 11.45, by any of the following FAA–2016–4224; Directorate Identifier and cradles for cracks and corrosion, a
methods: 2015–NM–170–AD’’ at the beginning of bolt preload check of any PLI washers
• Federal eRulemaking Portal: Go to your comments. We specifically invite and applicable corrective actions, a
http://www.regulations.gov. Follow the comments on the overall regulatory, detailed inspection for corrosion and
instructions for submitting comments. economic, environmental, and energy damage of the bores of the fittings,
• Fax: 202–493–2251. aspects of this proposed AD. We will replacement of the barrel nuts, and
• Mail: U.S. Department of consider all comments received by the repair of damage and corrosion.
Transportation, Docket Operations, M– closing date and may amend this Bombardier has issued Bombardier
mstockstill on DSK4VPTVN1PROD with PROPOSALS
30, West Building Ground Floor, Room proposed AD based on those comments. Repair Drawing (RD) 8/4–55–1143, Issue
W12–140, 1200 New Jersey Avenue SE., We will post all comments we 1, dated May 21, 2015. The service
Washington, DC 20590. receive, without change, to http:// information describes procedures for
• Hand Delivery: U.S. Department of www.regulations.gov, including any repairing corrosion and damage of the
Transportation, Docket Operations, M– personal information you provide. We bore of the fitting.
30, West Building Ground Floor, Room will also post a report summarizing each This service information is reasonably
W12–140, 1200 New Jersey Avenue SE., substantive verbal contact we receive available because the interested parties
Washington, DC, between 9 a.m. and 5 about this proposed AD. have access to it through their normal
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![Federal Register / Vol. 81, No. 49 / Monday, March 14, 2016 / Proposed Rules 13299
course of business or by the means Authority for This Rulemaking § 39.13 [Amended]
identified in the ADDRESSES section. Title 49 of the United States Code ■ 2. The FAA amends § 39.13 by adding
FAA’s Determination and Requirements specifies the FAA’s authority to issue the following new airworthiness
of This Proposed AD rules on aviation safety. Subtitle I, directive (AD):
section 106, describes the authority of Bombardier, Inc.: Docket No. FAA–2016–
This product has been approved by 4224; Directorate Identifier 2015–NM–
the aviation authority of another the FAA Administrator. ‘‘Subtitle VII:
Aviation Programs,’’ describes in more 170–AD.
country, and is approved for operation
in the United States. Pursuant to our detail the scope of the Agency’s (a) Comments Due Date
bilateral agreement with the State of authority. We must receive comments by April 28,
Design Authority, we have been notified We are issuing this rulemaking under 2016.
of the unsafe condition described in the the authority described in ‘‘Subtitle VII,
(b) Affected ADs
MCAI and service information Part A, Subpart III, Section 44701:
General requirements.’’ Under that None.
referenced above. We are proposing this
AD because we evaluated all pertinent section, Congress charges the FAA with (c) Applicability
information and determined an unsafe promoting safe flight of civil aircraft in This AD applies to Bombardier, Inc. Model
condition exists and is likely to exist or air commerce by prescribing regulations DHC–8–400 airplanes, certificated in any
develop on other products of the same for practices, methods, and procedures category, serial numbers 4001 and
type design. the Administrator finds necessary for subsequent.
safety in air commerce. This regulation (d) Subject
Costs of Compliance is within the scope of that authority
Air Transport Association (ATA) of
We estimate that this proposed AD because it addresses an unsafe condition America Code 55, Stablizers.
affects 76 airplanes of U.S. registry. that is likely to exist or develop on
We also estimate that it would take products identified in this rulemaking (e) Reason
about 6 work-hours per product to action. This AD was prompted by one in-service
comply with the basic requirements of report of a cracked and corroded barrel nut,
Regulatory Findings part number DSC228–12, found at the mid-
this proposed AD and 1 work-hour per
product for reporting. The average labor We determined that this proposed AD spar location of the horizontal stabilizer to
would not have federalism implications vertical stabilizer attachment joint. There
rate is $85 per work-hour. Required have also been two other reports of corroded
parts would cost about $0 per product. under Executive Order 13132. This barrel nuts found at mid-spar locations. We
Based on these figures, we estimate the proposed AD would not have a are issuing this AD to detect and correct
cost of this proposed AD on U.S. substantial direct effect on the States, on cracked and corroded barrel nuts. This
operators to be $45,220, or $595 per the relationship between the national condition could compromise the structural
product. Government and the States, or on the integrity of the vertical stabilizer attachment
In addition, we estimate that any distribution of power and joints, which could lead to loss of control of
necessary follow-on actions would take responsibilities among the various the airplane.
about 4 work-hours, and require parts levels of government. (f) Compliance
costing $8,881, for a cost of $9,221 per For the reasons discussed above, I Comply with this AD within the
product. We have no way of certify this proposed regulation: compliance times specified, unless already
determining the number of aircraft that 1. Is not a ‘‘significant regulatory done.
might need this action. action’’ under Executive Order 12866;
(g) Detailed Inspection of Barrel Nuts for
2. Is not a ‘‘significant rule’’ under the Cracks and Corrosion
Paperwork Reduction Act
DOT Regulatory Policies and Procedures
A federal agency may not conduct or (1) For airplanes that have accumulated
(44 FR 11034, February 26, 1979);
sponsor, and a person is not required to 5,400 flight hours or more, or have been in
3. Will not affect intrastate aviation in service 32 months or more since the date of
respond to, nor shall a person be subject Alaska; and issuance of the original certificate of
to penalty for failure to comply with a 4. Will not have a significant airworthiness or the date of issuance of the
collection of information subject to the economic impact, positive or negative, original export certificate of airworthiness as
requirements of the Paperwork on a substantial number of small entities of the effective date of this AD: Within 600
Reduction Act unless that collection of under the criteria of the Regulatory flight hours or 4 months, whichever occurs
information displays a current valid Flexibility Act. first, after the effective date of this AD, do a
OMB control number. The control detailed visual inspection for signs of cracks
number for the collection of information List of Subjects in 14 CFR Part 39 and corrosion of the barrel nut and cradle, in
required by this proposed AD is 2120– accordance with the Accomplishment
Air transportation, Aircraft, Aviation Instructions of Bombardier Alert Service
0056. The paperwork cost associated safety, Incorporation by reference, Bulletin A84–55–04, Revision A, dated June
with this proposed AD has been Safety. 2, 2015.
detailed in the Costs of Compliance (2) For airplanes that have less than 5,400
section of this document and includes The Proposed Amendment
flight hours, and have been in-service for less
time for reviewing instructions, as well Accordingly, under the authority than 32 months since the date of issuance of
as completing and reviewing the delegated to me by the Administrator, the original certificate of airworthiness or the
collection of information. Therefore, all the FAA proposes to amend 14 CFR part date of issuance of the original export
mstockstill on DSK4VPTVN1PROD with PROPOSALS
reporting associated with this proposed 39 as follows: certificate of airworthiness as of the effective
AD is mandatory. Comments concerning date of this AD: Before the accumulation of
PART 39—AIRWORTHINESS 6,000 total flight hours or 36 months since
the accuracy of this burden and
DIRECTIVES the date of issuance of the original certificate
suggestions for reducing the burden of airworthiness or the date of issuance of the
should be directed to the FAA at 800 original export certificate of airworthiness,
Independence Ave. SW., Washington, ■ 1. The authority citation for part 39
whichever occurs first, do a detailed visual
DC 20591, ATTN: Information continues to read as follows: inspection of the barrel nut for signs of cracks
Collection Clearance Officer, AES–200. Authority: 49 U.S.C. 106(g), 40113, 44701. and corrosion of the barrel nut and cradle, in
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![13300 Federal Register / Vol. 81, No. 49 / Monday, March 14, 2016 / Proposed Rules
accordance with the Accomplishment of this AD, check the bolt preload, and do all holding district office. The AMOC approval
Instructions of Bombardier Alert Service applicable corrective actions, in accordance letter must specifically reference this AD.
Bulletin A84–55–04, Revision A, dated June with the Accomplishment Instructions of (2) Contacting the Manufacturer: For any
2, 2015. Bombardier Alert Service Bulletin A84–55– requirement in this AD to obtain corrective
04, Revision A, dated June 2, 2015. Do all actions from a manufacturer, the action must
(h) Corrective Actions, Detailed Inspection,
applicable corrective actions before further be accomplished using a method approved
and Repetitive Inspections
flight.
Depending on the findings of any by the Manager, New York ACO, ANE–170,
inspection required by paragraphs (g) and (j) (j) Repetitive Inspection Interval FAA; or TCCA; or Bombardier, Inc.’s TCCA
of this AD, do the applicable actions in Repeat the inspection and preload check DAO. If approved by the DAO, the approval
paragraphs (h)(1), (h)(2), and (h)(3) of this required by paragraphs (g) and (i) of this AD must include the DAO-authorized signature.
AD. at intervals not to exceed 3,600 flight hours (3) Reporting Requirements: A federal
(1) If any barrel nut or cradle is found or 18 months, whichever occurs first, except agency may not conduct or sponsor, and a
cracked or broken, before further flight, as provided by paragraph (k) of this AD. person is not required to respond to, nor
replace the barrel nut and associated shall a person be subject to a penalty for
hardware, in accordance with the (k) Optional Barrel Nut Replacement
failure to comply with a collection of
Accomplishment Instructions of Bombardier Inspection and replacement of all barrel information subject to the requirements of
Alert Service Bulletin A84–55–04, Revision nuts at the horizontal stabilizer to vertical
the Paperwork Reduction Act unless that
A, dated June 2, 2015. stabilizer attachment joints, in accordance
(i) Concurrently with the replacement of collection of information displays a current
with the Accomplishment Instructions of
any barrel nut, do a detailed inspection for Bombardier Alert Service Bulletin A84–55– valid OMB Control Number. The OMB
corrosion and damage of the bore of the 04, Revision A, dated June 2, 2015, extends Control Number for this information
fitting, in accordance with the the next inspection required by paragraph (j) collection is 2120–0056. Public reporting for
Accomplishment Instructions of Bombardier of this AD to within 6,000 flight hours or 36 this collection of information is estimated to
Alert Service Bulletin A84–55–04, Revision months, whichever occurs first, after be approximately 5 minutes per response,
A, dated June 2, 2015, and, before further accomplishing the replacement. including the time for reviewing instructions,
flight, repair all corrosion and damage, in completing and reviewing the collection of
accordance with Bombardier Repair Drawing (l) Reporting Requirements
information. All responses to this collection
(RD) RD 8/4–55–1143, Issue 1, dated May 21, At the applicable time specified in of information are mandatory. Comments
2015. If the bore of the fitting cannot be paragraph (l)(1) or (l)(2) of this AD, submit concerning the accuracy of this burden and
repaired in accordance with Bombardier RD a report of the findings (both positive and
8/4–55–1143, Issue 1, dated May 21, 2015, suggestions for reducing the burden should
negative) of each inspection required by this
repair before further flight using a method AD to Technical Help Desk—Qseries, be directed to the FAA at: 800 Independence
approved by the Manager, New York ACO, telephone: 416–375–4000, fax: 416–375– Ave. SW., Washington, DC 20591, Attn:
ANE–170, FAA; or Transport Canada Civil 4539, email: thd.qseries@ Information Collection Clearance Officer,
Aviation (TCCA); or Bombardier, Inc.’s TCCA aero.bombardier.com, using the inspection AES–200.
Design Approval Organization (DAO). form in Bombardier Alert Service Bulletin
(ii) Within 600 flight hours or 4 months, (o) Related Information
A84–55–04, Revision A, dated June 2, 2015.
whichever occurs first, after the replacement (1) If the inspection was done on or after (1) Refer to Mandatory Continuing
of a cracked barrel nut, replace the remaining the effective date of this AD: Submit the Airworthiness Information (MCAI) Canadian
barrel nuts and their associated hardware at report within 30 days after the inspection. Airworthiness Directive CF–2015–13, dated
the horizontal stabilizer to vertical stabilizer (2) If the inspection was done before the June 25, 2015, for related information. This
attachment joints, in accordance with the effective date of this AD: Submit the report MCAI may be found in the AD docket on the
Accomplishment Instructions of Bombardier within 30 days after the effective date of this Internet at http://www.regulations.gov by
Alert Service Bulletin A84–55–04, Revision AD.
searching for and locating Docket No. FAA–
A, dated June 2, 2015.
(2) If any corrosion is found on any barrel (m) Credit for Previous Actions 2016–4224.
nut on the front or rear-spar joints, before This paragraph provides credit for actions (2) For service information identified in
further flight, replace the barrel nut using a required by paragraph (g) of this AD, if those this AD, contact Bombardier, Inc., Q-Series
method approved by the Manager, New York actions were performed before the effective Technical Help Desk, 123 Garratt Boulevard,
ACO, ANE–170, FAA; or TCCA; or date of this AD using Bombardier Alert Toronto, Ontario M3K 1Y5, Canada;
Bombardier, Inc.’s TCCA DAO. Service Bulletin A84–55–04, dated May 21, telephone 416–375–4000; fax 416–375–4539;
(3) If any corrosion above level 1, as 2015, which is not incorporated by reference email thd.qseries@aero.bombardier.com;
defined in Bombardier Alert Service Bulletin in this AD. Internet http://www.bombardier.com. You
A84–55–04, Revision A, dated June 2, 2015, may view this service information at the
(n) Other FAA AD Provisions
is found on a barrel nut at the mid-spar joint, FAA, Transport Airplane Directorate, 1601
before further flight, replace the barrel nut The following provisions also apply to this
AD: Lind Avenue SW., Renton, WA. For
using a method approved by the Manager,
New York ACO, ANE–170, FAA; or TCCA; or (1) Alternative Methods of Compliance information on the availability of this
Bombardier, Inc.’s TCCA DAO. (AMOCs): The Manager, New York ACO, material at the FAA, call 425–227–1221.
(4) If all corrosion found is at level 1 or ANE–170, FAA, has the authority to approve Issued in Renton, Washington, on March 3,
below, as defined in Bombardier Service AMOCs for this AD, if requested using the
2016.
Bulletin A84–55–04, Revision A, dated June procedures found in 14 CFR 39.19. In
2, 2015, on a barrel nut at the mid-spar joint, accordance with 14 CFR 39.19, send your Michael Kaszycki,
repeat the inspection specified in paragraph request to your principal inspector or local Acting Manager, Transport Airplane
(g) of this AD at intervals not to exceed 600 Flight Standards District Office, as Directorate, Aircraft Certification Service.
flight hours or 4 months, whichever occurs appropriate. If sending information directly
mstockstill on DSK4VPTVN1PROD with PROPOSALS
[FR Doc. 2016–05607 Filed 3–11–16; 8:45 am]
first, until completion of the actions required to the ACO, send it to ATTN: Program
BILLING CODE 4910–13–P
by paragraph (k) of this AD. Manager, Continuing Operational Safety,
FAA, New York ACO, 1600 Stewart Avenue,
(i) Preload Indicating (PLI) Washers Check Suite 410, Westbury, NY 11590; telephone
For airplanes with PLI washers installed at 516–228–7300; fax 516–794–5531. Before
the front and rear spar joints, before further using any approved AMOC, notify your
flight after accomplishing any inspection appropriate principal inspector, or lacking a
required by (g) of this AD and all applicable principal inspector, the manager of the local
corrective actions required by paragraph (h) flight standards district office/certificate
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Document Created: 2016-03-12 01:00:29
Document Modified: 2016-03-12 01:00:29
| 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 April 28, 2016. | |
| Contact | Aziz Ahmed, Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury, N Y 11590; telephone 516-228-7329; fax 516-794-5531. | |
| FR Citation | 81 FR 13298 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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