81 FR 21497 - Airworthiness Directives; The Boeing Company Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 81, Issue 70 (April 12, 2016)
Federal Aviation Administration
Federal Register Volume 81, Issue 70 (April 12, 2016)
| Page Range | 21497-21501 | |
| FR Document | 2016-08349 |
[Federal Register Volume 81, Number 70 (Tuesday, April 12, 2016)] [Proposed Rules] [Pages 21497-21501] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2016-08349] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2016-5468; Directorate Identifier 2015-NM-021-AD] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes. This proposed AD was prompted by reports of paint deterioration on the surface of the main landing gear (MLG) and the early onset of corrosion in the trunnion bore of the MLG outer cylinder. This proposed AD would require identifying affected parts, repetitive external surface detailed inspection for damage of affected parts, and related investigative and corrective actions if necessary. For certain airplanes, this AD also would require a detailed inspection and bushing replacement of the trunnion bore, and related investigative and corrective action if necessary. We are proposing this AD to prevent stress corrosion cracking of the external surfaces of the MLG, which could result in a fracture of the MLG and consequent MLG collapse. DATES: We must receive comments on this proposed AD by May 27, 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- [[Page 21498]] 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 Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-5468. 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- 5468; 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 Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Alan Pohl, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917- 6450; fax: 425-917-6590; email: [email protected]. 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-2016-5468; Directorate Identifier 2015-NM-021-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 because of 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 received reports from several operators of paint deterioration on the surface of the MLG and early onset of corrosion in the trunnion bore of the MLG outer cylinder. A maintenance repair and overhaul (MRO) facility observed forward trunnion bore corrosion on a right MLG while installing new bushings. Another MRO disclosed that between 2007 and 2010, the primer used on the landing gear components did not comply with Boeing Material Specification (BMS) 10-79. Also, paint chip and trunnion bore analysis showed that unqualified primer was used; primer application was up to 5 times too thick while enamel was too thin; there was early deterioration of the fillet seal at the trunnion bore; and the trunnion bushing installation process, which may have damaged the finish on the bore, did not follow the standard overhaul practices manual. This condition, if not corrected, could result in a fracture of the MLG and consequent MLG collapse. Related Service Information Under 1 CFR Part 51 We reviewed Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015. The service information describes procedures for identifying affected parts, repetitive external surface detailed inspection for damage of affected parts, and related investigative and corrective actions if necessary. For certain airplanes, this AD also would require a detailed inspection and bushing replacement of the trunnion bore, and related investigative and corrective action if necessary. The service information also describes procedures for certain airplanes that include a detailed inspection of the trunnion bore, and corrective actions. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. FAA's Determination We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of these same type designs. Proposed AD Requirements This proposed AD would require accomplishing the actions specified in the service information described previously, except as discussed under ``Differences Between this Proposed AD and the Service Information.'' The phrase ``corrective actions'' is used in this proposed AD. ``Corrective actions'' correct or address any condition found. Corrective actions in an AD could include, for example, repairs. The phrase ``related investigative actions'' is used in this proposed AD. ``Related investigative actions'' are follow-on actions that (1) are related to the primary action, and (2) further investigate the nature of any condition found. Related investigative actions in an AD could include, for example, inspections. Differences Between This Proposed AD and the Service Information Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, specifies to contact the manufacturer for instructions on how to repair certain conditions, but this proposed AD would require repairing those conditions in one of the following ways: In accordance with a method that we approve; or Using data that meet the certification basis of the airplane, and that have been approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) whom we have authorized to make those findings. While the effectivity of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, is limited to those airplanes that are listed, the applicability of this AD affects all The Boeing Company Model 737-600, -700, -700C, - 800, and -900 series airplanes. Clarification of Affected MLGs An MLG overhauled by SAFRAN Messier-Bugatti-Dowty outside of the Boeing Exchange program from June 1, 2009, to July 31, 2013, would also be affected by this proposed AD. [[Page 21499]] Costs of Compliance We estimate that this proposed AD affects 33 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost on U.S. Action Labor cost Parts cost Cost per product operators ---------------------------------------------------------------------------------------------------------------- External surface detailed Up to 16 work- $0................ $1,360 per Up to $44,880 per Inspection. hours x $85 per inspection cycle. inspection cycle. hour = $1,360 per inspection cycle. Outer Cylinder assembly trunnion 70 work-hours x Negligible........ $5,950............ $196,350. bore detailed inspection and $85 per hour = bushing replacement (G1-2, $5,950. configuration 1). ---------------------------------------------------------------------------------------------------------------- We estimate the following costs to do any necessary replacements that would be required based on the results of the proposed inspection. We have no way of determining the number of aircraft that might need this replacement. On-Condition Costs ------------------------------------------------------------------------ Cost per Action Labor cost product ------------------------------------------------------------------------ Outer cylinder assembly 28 work-hours x $85 $2,380 replacement (if required as a per hour = $2,380. result of the outer cylinder trunnion bore detailed inspection). ------------------------------------------------------------------------ We have received no definitive data that would enable us to provide cost estimates for certain on-condition actions (MLG external surface repair, MLG component replacement, outer cylinder repair, and MLG replacement) specified in this proposed AD. According to the manufacturer, some of the costs of this proposed AD may be covered under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty coverage for affected individuals. As a result, we have included all costs in our cost estimate. The previous info is based on known airplanes. However, the MLG may have been overhauled outside of the Boeing Exchange Program as specified in the Clarification of Affected MLGs section of this proposed AD. 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): The Boeing Company: Docket No. FAA-2016-5468; Directorate Identifier 2015-NM-021-AD. (a) Comments Due Date We must receive comments by May 27, 2016. (b) Affected ADs None. (c) Applicability This AD applies to all The Boeing Company Model 737-600, -700, - 700C, -800, and -900 series airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 32, Landing Gear. (e) Unsafe Condition This AD was prompted by reports of paint deterioration on the surface of the main [[Page 21500]] landing gear (MLG) and early onset of corrosion in the trunnion bore of the MLG outer cylinder. We are issuing this AD to prevent stress corrosion cracking of the external surfaces of the MLG, which could result in a fracture of the MLG and consequent MLG collapse. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Inspection for Affected Part/Serial Numbers At the applicable time specified in table 1 of paragraph 1.E., ``Compliance,'' of Boeing Special Attention Service Bulletin 737-32- 1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, except as required by paragraph (k)(1) of this AD: Do the actions specified in paragraphs (g)(1) and (g)(2) of this AD in order to identify affected parts. (1) Inspect the MLG to determine if it has any component installation or side strut assembly having a part number and serial number listed in Appendix D of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015; except that the ``Variable Number'' column of Appendix D is to be disregarded in determining affected part and serial numbers. A MLG that has any MLG component installation or side strut assembly having a part number and serial number listed in Appendix D of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, is an affected part. A review of airplane maintenance records is acceptable in lieu of this inspection if the part number and serial number of the MLG component installation and side strut assembly can be conclusively identified from that review. (2) Do a records review to determine if the MLG has been overhauled by SAFRAN Messier-Bugatti-Dowty outside of the Boeing Exchange program from June 1, 2009 to July 31, 2013. If the MLG has been overhauled by SAFRAN Messier-Bugatti-Dowty outside of the Boeing Exchange program from June 1, 2009 to July 31, 2013, that MLG is an affected part. If the records review cannot conclusively determine that an overhauled MLG was overhauled by an MRO other than SAFRAN Messier-Bugatti-Dowty, or if the records review cannot conclusively determine that an MLG overhauled by SAFRAN Messier- Bugatti-Dowty was part of the Boeing Exchange program from June 1, 2009 to July 31, 2013; that MLG is an affected part. (h) Requirements for Affected Parts If any affected part is identified during the inspection or records review required by paragraph (g) of this AD: At the applicable time specified in table 3 of paragraph 1.E., ``Compliance,'' of Boeing Special Attention Service Bulletin 737-32- 1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, except as required by paragraph (k)(1) of this AD: Do detailed inspections of the external surfaces of the MLG, and do all applicable related investigative and corrective actions, in accordance with Parts 1, 3, and 4 of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, except as required by paragraph (k)(2) of this AD. Repeat the inspections thereafter at the applicable time specified in table 3 of paragraph 1.E., ``Compliance,'' of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015. All applicable related investigative and corrective actions must be done before further flight. (i) Additional Actions for Groups 1 and 2, Configuration 1 For airplanes that are identified as Groups 1 and 2, Configuration 1, in Boeing Special Attention Service Bulletin 737- 32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, and that have an affected part identified during the inspection or records review required by paragraph (g) of this AD: At the applicable time specified in table 4 of Paragraph 1.E, ``Compliance,'' of Boeing Special Attention Service Bulletin 737-32- 1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, except as required by paragraph (k)(1) of this AD, do a detailed inspection and bushing replacement of the MLG trunnion bore, and do all applicable related investigative and corrective actions, in accordance with Parts 2, 5, and 6 of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, except as required by paragraph (k)(2) of this AD. (j) Terminating Action (1) MLG replacement in accordance with Part 8 of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, terminates the requirements of paragraphs (g), (h), and (i) of this AD for that MLG only. (2) MLG component replacement in accordance with Part 4 of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, terminates the requirements of paragraph (h) of this AD for that component only. (3) MLG outer cylinder replacement in accordance with Part 7 of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, terminates the requirements of paragraph (i) of this AD for that component only. (k) Exceptions to Service Information Specifications (1) Where paragraph 1.E., ``Compliance,'' of Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, specifies a compliance time ``after the original issue date of this service bulletin,'' this AD requires compliance within the specified compliance time after the effective date of this AD. (2) Although Boeing Special Attention Service Bulletin 737-32- 1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015, specifies to contact Boeing for repair instructions, and specifies that action as ``RC'' (Required for Compliance), this AD requires repair before further flight using a method approved in accordance with the procedures specified in paragraph (m) of this AD. (l) Parts Installation Prohibition As of the effective date of this AD, no person may install the following on any airplane identified in paragraph (c) of this AD, unless the MLG has been overhauled using a method approved in accordance with the procedures specified in paragraph (m) of this AD: (1) An MLG having a part number and serial number identified in Appendix D to Boeing Special Attention Service Bulletin 737-32-1486, dated November 6, 2014, as revised by Boeing Special Attention Service Bulletin 737-32-1486, Revision 1, dated April 1, 2015. (2) An MLG that was overhauled from June 1, 2009, to July 31, 2013, by SAFRAN Messier-Bugatti-Dowty. (m) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle Aircraft Certification Office (ACO), 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 ACO, send it to the attention of the person identified in paragraph (n)(1) of this AD. Information may be emailed to: [email protected]. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by the Boeing [[Page 21501]] Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (4) Except as required by paragraph (k)(2) of this AD: For service information that contains steps that are labeled as RC, the provisions of paragraphs (m)(4)(i) and (m)(4)(ii) of this AD apply. (i) The steps labeled as RC, including substeps under an RC step and any figures identified in an RC step, must be done to comply with the AD. An AMOC is required for any deviations to RC steps, including substeps and identified figures. (ii) Steps not labeled as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the RC steps, including substeps and identified figures, can still be done as specified, and the airplane can be put back in an airworthy condition. (n) Related Information (1) For more information about this AD, contact Alan Pohl, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle ACO, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6450; fax: 425-917-6590; email: [email protected]. (2) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544- 5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. For information on the availability of this material at the FAA, 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. Issued in Renton, Washington, on March 31, 2016. Victor Wicklund, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016-08349 Filed 4-11-16; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 81, No. 70 / Tuesday, April 12, 2016 / Proposed Rules 21497
§ 39.13 [Amended] (3) If the inspection finds that no insulating email thd.qseries@aero.bombardier.com;
■ 2. The FAA amends § 39.13 by adding sleeves are installed, or any existing sleeve is Internet http://www.bombardier.com. You
the following new airworthiness damaged, and there is no damage to the may view this service information at the
nacelle firewall, but there is damage to the FAA, Transport Airplane Directorate, 1601
directive (AD): terminal block, before further flight, replace Lind Avenue SW., Renton, WA. For
Bombardier, Inc.: Docket No. FAA–2016– the terminal block assembly (which includes information on the availability of this
5044; Directorate Identifier 2014–NM– insulating sleeves), in accordance with the material at the FAA, call 425–227–1221.
166–AD. Accomplishment Instructions of Bombardier
Issued in Renton, Washington, on March
Service Bulletin 8–24–92, Revision A, dated
(a) Comments Due Date 26, 2016.
April 11, 2014.
We must receive comments by May 27, (4) If the inspection finds that no insulating Jeffrey E. Duven,
2016. sleeves are installed and there is damage to Manager, Transport Airplane Directorate,
the nacelle firewall and the terminal block, Aircraft Certification Service.
(b) Affected ADs
repair the damage using a method approved [FR Doc. 2016–08266 Filed 4–11–16; 8:45 am]
None. by the Manager, New York Aircraft
BILLING CODE 4910–13–P
(c) Applicability Certification Office (ACO), ANE–170, Engine
and Propeller Directorate, FAA; or Transport
This AD applies to Bombardier, Inc. Canada Civil Aviation (TCCA); or
airplanes identified in paragraphs (c)(1), Bombardier, Inc.’s TCCA Design Approval DEPARTMENT OF TRANSPORTATION
(c)(2), and (c)(3) of this AD, certificated in Organization (DAO).
any category, serial numbers 003 through 672 Federal Aviation Administration
inclusive, on which terminal block part (h) Credit for Previous Actions
number 82450075–001 is installed. This paragraph provides credit for actions 14 CFR Part 39
(1) Model DHC–8–102, –103, and –106 required by paragraph (g) of this AD, if those
airplanes. actions were performed before the effective [Docket No. FAA–2016–5468; Directorate
(2) Model DHC–8–201 and –202 airplanes. date of this AD using Bombardier Service Identifier 2015–NM–021–AD]
(3) Model DHC–8–301, –311, and –315 Bulletin 8–24–92, dated September 25, 2013,
airplanes. RIN 2120–AA64
which is not incorporated by reference in this
(d) Subject AD. Airworthiness Directives; The Boeing
Air Transport Association (ATA) of (i) Other FAA AD Provisions Company Airplanes
America Code 24, Electrical Power. The following provisions also apply to this AGENCY: Federal Aviation
(e) Reason AD: Administration (FAA), DOT.
(1) Alternative Methods of Compliance
This AD was prompted by a report of one ACTION: Notice of proposed rulemaking
(AMOCs): The Manager, New York ACO,
event of heat damage found on a nacelle (NPRM).
firewall after an unsuccessful engine ground ANE–170, FAA, has the authority to approve
start and several events of heat damage found AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In SUMMARY: We propose to adopt a new
on direct current starter/generator terminal airworthiness directive (AD) for all The
block assemblies. We are issuing this AD to accordance with 14 CFR 39.19, send your
request to your principal inspector or local Boeing Company Model 737–600, –700,
prevent arcing between the firewall and
terminal blocks that are missing insulating Flight Standards District Office, as –700C, –800, and –900 series airplanes.
sleeves on the conductive bushings, which appropriate. If sending information directly This proposed AD was prompted by
could, in combination with a fuel or to the ACO, send it to ATTN: Program reports of paint deterioration on the
hydraulic fluid leak, be an ignition source for Manager, Continuing Operational Safety, surface of the main landing gear (MLG)
a fire. FAA, New York ACO, 1600 Stewart Avenue,
and the early onset of corrosion in the
Suite 410, Westbury, NY 11590; telephone
(f) Compliance 516–228–7300; fax 516–794–5531. Before trunnion bore of the MLG outer
using any approved AMOC, notify your cylinder. This proposed AD would
Comply with this AD within the
compliance times specified, unless already appropriate principal inspector, or lacking a require identifying affected parts,
done. principal inspector, the manager of the local repetitive external surface detailed
flight standards district office/certificate inspection for damage of affected parts,
(g) Inspection and Corrective Action holding district office. The AMOC approval and related investigative and corrective
Within 2,500 flight cycles or 14 months letter must specifically reference this AD. actions if necessary. For certain
after the effective date of this AD, whichever (2) Contacting the Manufacturer: For any
airplanes, this AD also would require a
occurs first, perform a detailed visual requirement in this AD to obtain corrective
inspection of the right-hand side and left- actions from a manufacturer, the action must detailed inspection and bushing
hand side nacelle firewalls and terminal be accomplished using a method approved replacement of the trunnion bore, and
block assemblies, as defined in Bombardier by the Manager, New York ACO, ANE–170, related investigative and corrective
Service Bulletin 8–24–92, Revision A, dated Engine and Propeller Directorate, FAA; or action if necessary. We are proposing
April 11, 2014, in accordance with the TCCA; or Bombardier, Inc.’s TCCA DAO. If this AD to prevent stress corrosion
Accomplishment Instructions of Bombardier approved by the DAO, the approval must cracking of the external surfaces of the
Service Bulletin 8–24–92, Revision A, dated include the DAO-authorized signature. MLG, which could result in a fracture of
April 11, 2014.
(j) Related Information the MLG and consequent MLG collapse.
(1) If the inspection finds no damage on the
engine firewalls and the terminal blocks, and (1) Refer to Mandatory Continuing DATES: We must receive comments on
that the insulating sleeves are installed on Airworthiness Information (MCAI) Canadian this proposed AD by May 27, 2016.
both terminal blocks, no further action is Airworthiness Directive CF–2014–03R1, ADDRESSES: You may send comments,
required by this AD. dated July 24, 2014, for related information.
jstallworth on DSK7TPTVN1PROD with PROPOSALS
using the procedures found in 14 CFR
(2) If the inspection finds that no insulating This MCAI may be found in the AD docket 11.43 and 11.45, by any of the following
sleeves are installed, or the existing sleeves on the Internet at http://www.regulations.gov
are damaged, and there is no damage to the by searching for and locating Docket No. methods:
nacelle firewall and terminal block, before FAA–2016–5044. • Federal eRulemaking Portal: Go to
further flight, install the replacement (2) For service information identified in http://www.regulations.gov. Follow the
insulating sleeves, in accordance with the this AD, contact Bombardier, Inc., Q-Series instructions for submitting comments.
Accomplishment Instructions of Bombardier Technical Help Desk, 123 Garratt Boulevard, • Fax: 202–493–2251.
Service Bulletin 8–24–92, Revision A, dated Toronto, Ontario M3K 1Y5, Canada; • Mail: U.S. Department of
April 11, 2014. telephone 416–375–4000; fax 416–375–4539; Transportation, Docket Operations, M–
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Costs of Compliance We estimate the following costs to
We estimate that this proposed AD comply with this proposed AD:
affects 33 airplanes of U.S. registry.
ESTIMATED COSTS
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
External surface detailed Up to 16 work-hours × $85 $0 ...................................... $1,360 per inspection Up to $44,880 per inspec-
Inspection. per hour = $1,360 per cycle. tion cycle.
inspection cycle.
Outer Cylinder assembly 70 work-hours × $85 per Negligible .......................... $5,950 ............................... $196,350.
trunnion bore detailed in- hour = $5,950.
spection and bushing re-
placement (G1–2, con-
figuration 1).
We estimate the following costs to do be required based on the results of the determining the number of aircraft that
any necessary replacements that would proposed inspection. We have no way of might need this replacement.
ON-CONDITION COSTS
Cost per
Action Labor cost product
Outer cylinder assembly replacement (if required as a result of 28 work-hours × $85 per hour = $2,380 .................................... $2,380
the outer cylinder trunnion bore detailed inspection).
We have received no definitive data the Administrator finds necessary for The Proposed Amendment
that would enable us to provide cost safety in air commerce. This regulation Accordingly, under the authority
estimates for certain on-condition is within the scope of that authority delegated to me by the Administrator,
actions (MLG external surface repair, because it addresses an unsafe condition the FAA proposes to amend 14 CFR part
MLG component replacement, outer that is likely to exist or develop on 39 as follows:
cylinder repair, and MLG replacement) products identified in this rulemaking
specified in this proposed AD. action. PART 39—AIRWORTHINESS
According to the manufacturer, some DIRECTIVES
of the costs of this proposed AD may be Regulatory Findings
covered under warranty, thereby We determined that this proposed AD ■ 1. The authority citation for part 39
reducing the cost impact on affected would not have federalism implications continues to read as follows:
individuals. We do not control warranty under Executive Order 13132. This Authority: 49 U.S.C. 106(g), 40113, 44701.
coverage for affected individuals. As a proposed AD would not have a
result, we have included all costs in our substantial direct effect on the States, on § 39.13 [Amended]
cost estimate. the relationship between the national ■ 2. The FAA amends § 39.13 by adding
The previous info is based on known Government and the States, or on the the following new airworthiness
airplanes. However, the MLG may have distribution of power and directive (AD):
been overhauled outside of the Boeing responsibilities among the various
The Boeing Company: Docket No. FAA–
Exchange Program as specified in the levels of government. 2016–5468; Directorate Identifier 2015–
Clarification of Affected MLGs section For the reasons discussed above, I NM–021–AD.
of this proposed AD. certify this proposed regulation:
(1) Is not a ‘‘significant regulatory (a) Comments Due Date
Authority for This Rulemaking
action’’ under Executive Order 12866, We must receive comments by May 27,
Title 49 of the United States Code (2) Is not a ‘‘significant rule’’ under 2016.
specifies the FAA’s authority to issue the DOT Regulatory Policies and (b) Affected ADs
rules on aviation safety. Subtitle I, Procedures (44 FR 11034, February 26,
section 106, describes the authority of None.
1979),
the FAA Administrator. Subtitle VII: (3) Will not affect intrastate aviation (c) Applicability
Aviation Programs, describes in more in Alaska, and This AD applies to all The Boeing
detail the scope of the Agency’s (4) Will not have a significant Company Model 737–600, –700, –700C,
authority. economic impact, positive or negative, –800, and –900 series airplanes, certificated
jstallworth on DSK7TPTVN1PROD with PROPOSALS
We are issuing this rulemaking under on a substantial number of small entities in any category.
the authority described in Subtitle VII, under the criteria of the Regulatory (d) Subject
Part A, Subpart III, Section 44701: Flexibility Act.
‘‘General requirements.’’ Under that Air Transport Association (ATA) of
List of Subjects in 14 CFR Part 39 America Code 32, Landing Gear.
section, Congress charges the FAA with
promoting safe flight of civil aircraft in Air transportation, Aircraft, Aviation (e) Unsafe Condition
air commerce by prescribing regulations safety, Incorporation by reference, This AD was prompted by reports of paint
for practices, methods, and procedures Safety. deterioration on the surface of the main
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![Federal Register / Vol. 81, No. 70 / Tuesday, April 12, 2016 / Proposed Rules 21501
Commercial Airplanes Organization Notice of proposed rulemaking
ACTION: Management Facility between 9 a.m.
Designation Authorization (ODA) that has (NPRM). and 5 p.m., Monday through Friday,
been authorized by the Manager, Seattle except Federal holidays. The AD docket
ACO, to make those findings. To be SUMMARY: We propose to supersede contains this proposed AD, the
approved, the repair method, modification Airworthiness Directive (AD) 2008–15–
deviation, or alteration deviation must meet
regulatory evaluation, any comments
06, which applies to certain Textron received, and other information. The
the certification basis of the airplane, and the Aviation Inc. Models 175 and 175A
approval must specifically refer to this AD. street address for the Docket Office
airplanes (type certificate previously (phone: 800–647–5527) is in the
(4) Except as required by paragraph (k)(2)
of this AD: For service information that
held by Cessna Aircraft Company). AD ADDRESSES section. Comments will be
contains steps that are labeled as RC, the 2008–15–06 currently requires checking available in the AD docket shortly after
provisions of paragraphs (m)(4)(i) and the airplane logbook to determine if the receipt.
(m)(4)(ii) of this AD apply. original engine mounting brackets have
been replaced. If the original engine FOR FURTHER INFORMATION CONTACT: Gary
(i) The steps labeled as RC, including
substeps under an RC step and any figures mounting brackets are still installed, the Park, Aerospace Engineer, Wichita
identified in an RC step, must be done to AD requires repetitively inspecting Aircraft Certification Office, 1801
comply with the AD. An AMOC is required those brackets for cracks and replacing Airport Road, Room 100, Wichita,
for any deviations to RC steps, including any cracked engine mounting bracket Kansas 67209; telephone: (316) 946–
substeps and identified figures. 4123; fax: (316) 946–4107, email:
(ii) Steps not labeled as RC may be
until all four original engine mounting
brackets are replaced. Replacing all four gary.park@faa.gov.
deviated from using accepted methods in
original engine mounting brackets SUPPLEMENTARY INFORMATION:
accordance with the operator’s maintenance
or inspection program without obtaining terminates the actions required in AD Comments Invited
approval of an AMOC, provided the RC steps, 2008–15–06. Since we issued AD 2008–
including substeps and identified figures, can 15–06, we have determined that the We invite you to send any written
still be done as specified, and the airplane applicability needs to be changed to add relevant data, views, or arguments about
can be put back in an airworthy condition. a serial number and take one out. This this proposed AD. Send your comments
(n) Related Information proposed AD would retain the actions to an address listed under the
required in AD 2008–15–06 and would ADDRESSES section. Include ‘‘Docket No.
(1) For more information about this AD, FAA–2016–5579; Directorate Identifier
contact Alan Pohl, Aerospace Engineer, change the Applicability section. We are
Airframe Branch, ANM–120S, FAA, Seattle proposing this AD to correct the unsafe 2016–CE–010–AD’’ at the beginning of
ACO, 1601 Lind Avenue SW., Renton, WA condition on these products. your comments. We specifically invite
98057–3356; phone: 425–917–6450; fax: 425– DATES: We must receive comments on
comments on the overall regulatory,
917–6590; email: alan.pohl@faa.gov. this proposed AD by May 27, 2016. economic, environmental, and energy
(2) For service information identified in aspects of this proposed AD. We will
ADDRESSES: You may send comments,
this AD, contact Boeing Commercial consider all comments received by the
Airplanes, Attention: Data & Services using the procedures found in 14 CFR
closing date and may amend this
Management, P.O. Box 3707, MC 2H–65, 11.43 and 11.45, by any of the following
proposed AD because of those
Seattle, WA 98124–2207; telephone 206– methods:
• Federal eRulemaking Portal: Go to comments.
544–5000, extension 1; fax 206–766–5680;
Internet https://www.myboeingfleet.com. For http://www.regulations.gov. Follow the We will post all comments we
information on the availability of this instructions for submitting comments. receive, without change, to http://
material at the FAA, You may view this • Fax: 202–493–2251. www.regulations.gov, including any
referenced service information at the FAA, • Mail: U.S. Department of personal information you provide. We
Transport Airplane Directorate, 1601 Lind Transportation, Docket Operations, M– will also post a report summarizing each
Avenue SW., Renton, WA. For information 30, West Building Ground Floor, Room substantive verbal contact we receive
on the availability of this material at the about this proposed AD.
FAA, call 425–227–1221.
W12–140, 1200 New Jersey Avenue SE.,
Washington, DC 20590. Discussion
Issued in Renton, Washington, on March • Hand Delivery: Deliver to Mail
31, 2016. address above between 9 a.m. and 5 On July 15, 2008, we issued AD 2008–
Victor Wicklund, p.m., Monday through Friday, except 15–06, Amendment 39–15618 (73 FR
Acting Manager, Transport Airplane Federal holidays. 43845, July 29, 2008), (‘‘AD 2008–15–
Directorate, Aircraft Certification Service. For service information identified in 06’’), for certain Textron Aviation Inc.
[FR Doc. 2016–08349 Filed 4–11–16; 8:45 am] this NPRM, contact Cessna Aircraft Models 175 and 175A airplanes (type
BILLING CODE 4910–13–P Company, Product Support, P.O. Box certificate previously held by Cessna
7706, Wichita, Kansas 67277; telephone: Aircraft Company). AD 2008–15–06
(316) 517–5800; fax: (316) 942–9006; requires you to check the airplane
DEPARTMENT OF TRANSPORTATION Internet: www.cessna.txtav.com. You logbook to determine if the original
may review copies of the referenced engine mounting brackets have been
Federal Aviation Administration service information at the FAA, Small replaced. If the original engine
Airplane Directorate, 901 Locust, mounting brackets are still installed,
14 CFR Part 39 Kansas City, Missouri 64106. For this AD requires you to repetitively
information on the availability of this inspect those brackets for cracks and
[Docket No. FAA–2016–5579; Directorate replace any cracked engine mounting
jstallworth on DSK7TPTVN1PROD with PROPOSALS
material at the FAA, call (816) 329–
Identifier 2016–CE–010–AD] bracket. After replacing all four original
4148.
engine mounting brackets, no further
RIN 2120–AA64 Examining the AD Docket action will be required by this AD. AD
Airworthiness Directives; Textron You may examine the AD docket on 2008–15–06 resulted from a report of
Aviation Inc. Airplanes the Internet at http:// the engine detaching from the firewall
www.regulations.gov by searching for on a Cessna Model 175 airplane during
AGENCY:Federal Aviation and locating Docket No. FAA–2016– landing. We issued AD 2008–15–06 to
Administration (FAA), DOT. 5579; or in person at the Docket detect and correct cracks in the engine
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Document Created: 2016-04-12 00:46:28
Document Modified: 2016-04-12 00:46:28
| 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 May 27, 2016. | |
| Contact | Alan Pohl, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917- 6450; fax: 425-917-6590; email: [email protected] | |
| FR Citation | 81 FR 21497 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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