82 FR 24906 - Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 82, Issue 103 (May 31, 2017)
Federal Aviation Administration
Federal Register Volume 82, Issue 103 (May 31, 2017)
| Page Range | 24906-24910 | |
| FR Document | 2017-10978 |
[Federal Register Volume 82, Number 103 (Wednesday, May 31, 2017)] [Proposed Rules] [Pages 24906-24910] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2017-10978] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2017-0516; Directorate Identifier 2016-NM-125-AD] RIN 2120-AA64 Airworthiness Directives; ATR--GIE Avions de Transport R[eacute]gional Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to supersede Airworthiness Directive (AD) 2015-23- 12, for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42 and ATR72 airplanes. AD 2015-23-12 currently requires identifying the serial number and part number of the main landing gear (MLG) rear hinge pins, and replacing pins or the MLG if necessary. Since we issued AD 2015-23-12, we have received a new report of a certain cracked MLG hinge pin on a Model ATR42 airplane. We have determined that certain additional MLG hinge pins must be replaced, and certain compliance times must be reduced. This proposed AD would require identifying the serial number and part number of the MLG rear hinge pins, and replacing pins if necessary. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by July 17, 2017. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. Fax: 202-493-2251. Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590. Hand Delivery: 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 NPRM, contact ATR--GIE Avions de Transport R[eacute]gional, 1, All[eacute]e Pierre Nadot, 31712 Blagnac Cedex, France; telephone +33 (0) 5 62 21 62 21; fax +33 (0) 5 62 21 67 18; email [email protected]; Internet http://www.aerochain.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-2017- 0516; 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: Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1112; fax 425-227-1149. 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-2017-0516; Directorate Identifier 2016-NM-125-AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD based on those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion On November 12, 2015, we issued AD 2015-23-12, Amendment 39-18329 (80 FR 73096, November 24, 2015) (``AD 2015-23-12''), for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42 and ATR72 airplanes. AD 2015-23-12 was prompted by new occurrences of certain cracked MLG rear hinge pins. AD 2015-23-12 requires identifying the serial number and part number of the MLG rear hinge pins, and replacing pins or the MLG if necessary. We issued AD 2015-23-12 to detect and correct cracked rear hinge pins, which could lead to MLG structural failure, possibly resulting in collapse of the MLG and consequent injury to the occupants of the airplane. Since we issued AD 2015-23-12, we have received a new report of a cracked MLG hinge pin having P/N D62055 on a Model ATR42 airplane. We have determined that certain additional MLG hinge pins must be replaced, and certain compliance times must be reduced. The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued EASA Airworthiness Directive 2016-0135, dated July 8, 2016 (referred to after this as the Mandatory Continuing Airworthiness Information, or ``the MCAI''), to correct an unsafe condition for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42 and ATR72 airplanes. The MCAI states: Prompted by cases of rupture of main landing gear (MLG) rear hinge pin part number (P/N) D61000 encountered in service in 1994 and 1996, DGAC [Direction G[eacute]n[eacute]rale de l'Aviation Civile] France issued AD 96-131-064 (B) for ATR42 aeroplanes and AD 96-096-029 (B) for ATR72 aeroplanes to [[Page 24907]] require inspection and, depending on findings, corrective action. Since those [French] ADs were issued, new occurrences of cracked rear hinge pin P/N [part number] D61000 were reported on ATR72 MLG. The result of subsequent investigation revealed that the affected pins were subjected to a non-detected thermal abuse done in production during grinding process. Analysis also showed that other MLG pin P/N's could be affected by the same production issue. This condition, if not detected and corrected, could lead to structural failure and consequent collapse of the MLG, possibly resulting in damage to the aeroplane and injury to the occupants. To address this potential unsafe condition, EASA issued AD 2014- 0074 [which corresponds to FAA AD 2015-23-12] to require inspection and, depending on findings, replacement of affected pins. After EASA AD 2014-0074 was issued, a new occurrence was reported of a cracked MLG hinge pin P/N D62055 installed on the MLG Side Brace of an ATR42 aeroplane. This new occurrence was also identified as related to a non-detected thermal abuse done in production during grinding process. Prompted by this new occurrence, Messier Bugatti Dowty (MBD) updated the list of MLG hinge pins affected by this unsafe condition by adding serial numbers (S/N), which were previously not considered by EASA AD 2014-0074. In addition, it was determined that the compliance time for replacement of pins with P/N D62055 must be reduced. The six affected MBD Service Bulletins (SB) were revised accordingly, and six new ones were also published to address this issue. For the reasons described above, this [EASA] AD retains the requirements of EASA AD 2014-0074, which is superseded, but addresses an expanded MLG hinge pin population with appropriate compliance time(s). You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017- 0516. Related Service Information Under 1 CFR Part 51 Messier-Bugatti-Dowty has issued the following service information, which describes procedures for inspecting and replacing the MLG hinge pin. These documents are distinct since they apply to different airplane models and different MLG hinge pin part numbers. Service Bulletin 631-32-213, Revision 2, dated March 15, 2016. Service Bulletin 631-32-214, Revision 1, dated March 15, 2016. Service Bulletin 631-32-215, Revision 1, dated March 15, 2016. Service Bulletin 631-32-216, Revision 3, dated March 15, 2016. Service Bulletin 631-32-219, Revision 1, dated March 15, 2016. Service Bulletin 631-32-220, Revision 1, dated March 15, 2016. Service Bulletin 631-32-224, dated March 15, 2016. Service Bulletin 631-32-231, dated March 15, 2016. Service Bulletin 631-32-232, Revision 1, dated March 15, 2016. Service Bulletin 631-32-233, dated March 15, 2016. Service Bulletin 631-32-234, dated March 15, 2016. Service Bulletin 631-32-235, dated March 15, 2016. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. FAA's Determination and Requirements of This Proposed AD This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with the State of Design Authority, we have been notified of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all pertinent information and determined an unsafe condition exists and is likely to exist or develop on other products of the same type designs. Differences Between This Proposed AD and the MCAI or Service Information In MCAI table 1 and table 2, the MCAI specifies the compliance time terminology, ``whichever occurs later,'' between compliance time A and B. However, this proposed AD specifies the phrase, ``whichever occurs first,'' instead of ``whichever occurs later.'' This difference has been coordinated with EASA and ATR--GIE Avions de Transport R[eacute]gional. Costs of Compliance We estimate that this proposed AD affects 63 airplanes of U.S. registry. The actions required by AD 2015-23-12, and retained in this proposed AD take about 8 work-hours per product, at an average labor rate of $85 per work-hour. Required parts will cost about $16,000 per product. Based on these figures, the estimated cost of the actions that are required by AD 2015-23-12 is $16,680 per product. We also estimate that it would take about 8 work-hours per product to comply with the basic requirements of this proposed AD. The average labor rate is $85 per work-hour. Required parts would cost about $16,000 per product. Based on these figures, we estimate the cost of this proposed AD on U.S. operators to be $1,050,840, or $16,680 per product. 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. 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, [[Page 24908]] 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) 2015-23-12, Amendment 39-18329 (80 FR 73096, November 24, 2015), and adding the following new AD: ATR-GIE Avions de Transport R[eacute]gional: Docket No. FAA-2017- 0516; Directorate Identifier 2016-NM-125-AD. (a) Comments Due Date We must receive comments by July 17, 2017. (b) Affected ADs This AD replaces AD 2015-23-12, Amendment 39-18329 (80 FR 73096, November 24, 2015) (``AD 2015-23-12''). (c) Applicability This AD applies to ATR-GIE Avions de Transport R[eacute]gional Model ATR42-200, -300, -320, and -500 airplanes; and ATR72-101, - 201, -102, -202, -211, -212, and -212A airplanes; certificated in any category; all certified models; all manufacturer serial numbers. (d) Subject Air Transport Association (ATA) of America Code 32, Landing Gear. (e) Reason This AD was prompted by a new occurrence of a cracked main landing gear (MLG) rear hinge pin. We are issuing this AD to detect and correct cracked rear hinge pins, which could lead to MLG structural failure, possibly resulting in collapse of the MLG and consequent injury to the occupants of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Retained Hinge Pin Identification and Replacement for Model ATR72 Airplanes, With Terminating Action This paragraph restates the requirements of paragraph (g) of AD 2015-23-12, with terminating action. For Model ATR72 airplanes: Within 12 months after December 29, 2015 (the effective date of AD 2015-23-12), inspect for the serial number of the left-hand (LH) and right-hand (RH) MLG rear hinge pins having part number (P/N) D61000. A review of airplane maintenance records is acceptable in lieu of this identification if the part number and serial number of the LH and RH MLG rear hinge pins can be conclusively determined from that review. If a rear hinge pin having P/N D61000 has a serial number listed in Messier-Bugatti-Dowty Service Bulletin 631-32-213, dated December 16, 2013; or Messier-Bugatti-Dowty Service Bulletin 631-32- 216, Revision 1, dated December 17, 2013; as applicable: Within 12 months after December 29, 2015, replace the pin with a serviceable part as identified in paragraph (h) of this AD, in accordance with the Accomplishment Instructions of Messier-Bugatti-Dowty Service Bulletin 631-32-213, dated December 16, 2013; or Messier-Bugatti- Dowty Service Bulletin 631-32-216, Revision 1, dated December 17, 2013; as applicable. Accomplishment of the actions required by paragraph (l) of this AD terminates the inspection required by this paragraph. Accomplishing the actions required by paragraph (m) or (o) of this AD terminates the actions required by this paragraph. (h) Retained Definition of Serviceable Hinge Pin for Model ATR72 Airplanes for Paragraph (g) of this AD, With No Changes This paragraph restates the definition in paragraph (h) of AD 2015-23-12, with no changes. For Model ATR72 airplanes: For purposes of paragraph (g) of this AD, a serviceable MLG rear hinge pin is a pin that is specified in paragraph (h)(1) or (h)(2) of this AD. (1) A hinge pin that is not identified in Messier-Bugatti-Dowty Service Bulletin 631-32-213, dated December 16, 2013; or Messier- Bugatti-Dowty Service Bulletin 631-32-216, Revision 1, dated December 17, 2013; as applicable. (2) A hinge pin that has been inspected and reconditioned, in accordance with the Accomplishment Instructions of Messier-Bugatti- Dowty Service Bulletin 631-32-213, dated December 16, 2013; or Messier-Bugatti-Dowty Service Bulletin 631-32-216, Revision 1, dated December 17, 2013; as applicable. (i) Retained MLG Pin Identification and Replacement for Model ATR72 Airplanes, With Terminating Action This paragraph restates the requirements of paragraph (i) of AD 2015-23-12, with terminating action. For Model ATR72 airplanes: At the earlier of the times specified in paragraphs (i)(1) and (i)(2) of this AD, inspect all LH and RH MLG pins for a part number and serial number listed in Messier-Bugatti-Dowty Service Bulletin 631- 32-214, dated January 13, 2014; or Messier-Bugatti-Dowty Service Bulletin 631-32-219, dated March 3, 2014; as applicable. A review of airplane maintenance records is acceptable in lieu of this inspection if the part number and serial number of the LH and RH MLG pin can be conclusively determined from that review. If any affected MLG pin is found: At the earlier of the compliance times specified in paragraphs (i)(1) and (i)(2) of this AD, replace the MLG with a serviceable MLG as identified in paragraph (j) of this AD, using a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the European Aviation Safety Agency (EASA); or ATR-GIE Avions de Transport R[eacute]gional's EASA Design Organization Approval (DOA). Accomplishment of the actions required by paragraph (l) of this AD terminates the inspection for the part number and serial number of the LH and RH MLG rear hinge pins required by this paragraph. Accomplishment of the actions required by paragraph (m) or (o) of this AD terminates the actions required by this paragraph. (1) No later than the next MLG overhaul scheduled after December 29, 2015 (the effective date of AD 2105-23-12). (2) Within 20,000 flight cycles or 9 years, whichever occurs first, accumulated since installation of the MLG on an airplane since new or since last overhaul, as applicable. (j) Retained Definition of Serviceable MLG for Model ATR72 Airplanes for Paragraph (i) of this AD, With No Changes This paragraph restates the definition in paragraph (j) of AD 2015-23-12, with no changes. For Model ATR72 airplanes: For purposes of paragraph (i) of this AD, a serviceable MLG is one that incorporates pins specified in paragraph (j)(1) or (j)(2) of this AD. (1) Pins that are not identified in Messier-Bugatti-Dowty Service Bulletin 631-32-214, dated January 13, 2014; or Messier- Bugatti-Dowty Service Bulletin 631-32-219, dated March 3, 2014; as applicable. (2) Pins that have been inspected and reconditioned in accordance with the Accomplishment Instructions of Messier-Bugatti- Dowty Service Bulletin 631-32-214, dated January 13, 2014; or Messier-Bugatti-Dowty Service Bulletin 631-32-219, dated March 3, 2014; as applicable. (k) Retained MLG Pin Identification and Replacement for Model ATR42 Airplanes, With Terminating Action This paragraph restates the requirements of paragraph (k) of AD 2015-23-12, with terminating action. Accomplishment of the actions required by paragraph (l) of this AD terminates the actions required by paragraph (k)(1) of this AD. Accomplishment of the actions required by paragraph (m) or (o) of this AD terminates the actions required by paragraph (k)(2) of this AD. (1) For Model ATR42 airplanes: Within the compliance time identified in paragraph (k)(1)(i) or (k)(1)(ii) of this AD, whichever occurs first, inspect for any LH and RH MLG pins having a part number and serial number listed in Messier-Bugatti-Dowty Service Bulletin 631-32-215, dated January 13, 2014; or Messier- Bugatti-Dowty Service Bulletin 631-32-220, dated March 3, 2014; as applicable. A review of airplane maintenance records is acceptable in lieu of this identification if the part number and serial number of the LH and RH MLG pin can be conclusively determined from that review. (i) No later than the next MLG overhaul scheduled after December 29, 2015 (the effective date of AD 2015-23-12). (ii) Within 20,000 flight cycles or 9 years, whichever occurs first, accumulated since installation of the MLG on an airplane since new or since last overhaul, as applicable. (2) If the MLG pin having a part number and serial number listed in Messier-Bugatti-Dowty Service Bulletin 631-32-215, dated January 13, 2014; or Messier-Bugatti-Dowty Service Bulletin 631-32-220, dated March 3, 2014; as applicable; is found to be installed [[Page 24909]] during the identification required by paragraph (k)(1) of this AD, within the compliance time identified in paragraph (k)(1) of this AD, replace the MLG with a serviceable MLG, using a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the EASA; or ATR-GIE Avions de Transport R[eacute]gional's EASA DOA. For the purposes of this paragraph, a serviceable MLG is a part that has pins identified in paragraph (k)(2)(i) or (k)(2)(ii) of this AD. (i) Pins that are not listed in Messier-Bugatti-Dowty Service Bulletin 631-32-215, dated January 13, 2014; or Messier-Bugatti- Dowty Service Bulletin 631-32-220, dated March 3, 2014; as applicable. (ii) Pins that have been inspected and reconditioned, in accordance with the Accomplishment Instructions of Messier-Bugatti- Dowty Service Bulletin 631-32-215, dated January 13, 2014; or Messier-Bugatti-Dowty Service Bulletin 631-32-220, dated March 3, 2014; as applicable. (l) New Requirement of This AD: Hinge Pin Identification Within the applicable compliance time specified in, and in accordance with the Accomplishment Instructions of, the applicable Messier-Bugatti-Dowty Service Bulletin specified in figure 1 to paragraphs (l) through (p) of this AD or figure 2 to paragraphs (l) through (p) of this AD, as applicable to the airplane model and MLG hinge part number, identify the serial number (S/N) of the LH and RH MLG hinge pins. A review of airplane maintenance records is acceptable in lieu of this identification if the part number and serial number of the LH and RH MLG hinge pins can be conclusively determined from that review. Accomplishment of the actions required by this paragraph terminates the inspections required by paragraphs (g), (i), and (k)(1) of this AD. Figure 1 to Paragraphs (l) Through (p) of This AD--Model ATR72 Airplanes ------------------------------------------------------------------------ Applicable Messier- MLG Hinge part Nos. Bugatti-Dowty Compliance time Service Bulletins ------------------------------------------------------------------------ D60955, D60968, D60999, Messier-Bugatti- A or B, whichever D61032, D61061. Dowty Service occurs first: Bulletin 631-32- A: Not later than 214, Revision 1, the next scheduled dated March 15, MLG overhaul after 2016 the effective date Messier-Bugatti- of this AD. Dowty Service B: Within 20,000 Bulletin 631-32- flight cycles or 9 219, Revision 1, years, whichever dated March 15, occurs first, 2016, or. accumulated since Messier-Bugatti- first installation Dowty Service of a MLG on an Bulletin 631-32- airplane since new, 233, dated March or since last 15, 2016. overhaul, as applicable. D61000...................... Messier-Bugatti- Within 12 months Dowty Service after the effective Bulletin 631-32- date of this AD. 213, Revision 2, dated March 15, 2016 Messier-Bugatti- Dowty Service Bulletin 631-32- 216, Revision 3, dated March 15, 2016, or. Messier-Bugatti- Dowty Service Bulletin 631-32- 232, Revision 1, dated March 15, 2016. ------------------------------------------------------------------------ Figure 2 to Paragraphs (l) Through (p) of This AD--Model ATR42 Airplanes ---------------------------------------------------------------------------------------------------------------- Applicable Messier-Bugatti- MLG Hinge part Nos. Airplane model(s) Dowty Service Bulletins Compliance time ---------------------------------------------------------------------------------------------------------------- D62054, D63823, D63825............ All.................. Messier-Bugatti-Dowty A or B, whichever occurs Service Bulletin 631-32- first: 215, Revision 1, dated A: Not later than the March 15, 2016 next scheduled MLG Messier-Bugatti-Dowty overhaul after the Service Bulletin 631-32- effective date of this 220, Revision 1, dated AD. March 15, 2016, or. B: Within 20,000 flight Messier-Bugatti-Dowty cycles or 9 years, Service Bulletin 631-32- whichever occurs first, 235, dated March 15, 2016. accumulated since first installation of a MLG on an airplane since new, or since last overhaul, as applicable. D56800, D56800-1, D56809, D56841, ATR42-300............ Messier-Bugatti-Dowty A or B, whichever occurs D57261, D57401, D57407, D58807, Service Bulletin 631-32- first: D62079. 215, Revision 1, dated A: Not later than the March 15, 2016 next scheduled MLG Messier-Bugatti-Dowty overhaul after the Service Bulletin 631-32- effective date of this 220, Revision 1, dated AD. March 15, 2016, or. B: Within 20,000 flight Messier-Bugatti-Dowty cycles or 9 years, Service Bulletin 631-32- whichever occurs first, 235, dated March 15, 2016. accumulated since first installation of a MLG on an airplane since new, or since last overhaul, as applicable. D62055............................ All.................. Messier-Bugatti-Dowty Within 24 months after Service Bulletin 631-32- the effective date of 224, this AD. Messier-Bugatti-Dowty Service Bulletin 631-32- 231, or. Messier-Bugatti-Dowty Service Bulletin 631-32- 234. ---------------------------------------------------------------------------------------------------------------- (m) New MLG Hinge Pin Replacement If, during the identification required by paragraph (l) of this AD, an MLG hinge pin with a serial number listed in the applicable Messier-Bugatti-Dowty Service Bulletin is found to be installed: Within the compliance time specified in figure 1 to paragraphs (l) through (p) of this AD or figure 2 to paragraphs (l) through (p) of this AD, as applicable to airplane model and MLG hinge pin part number, replace each affected MLG hinge pin with a serviceable MLG hinge pin. The replacement must be done in accordance with the Accomplishment Instructions of the applicable Messier-Bugatti-Dowty Service Bulletin specified in figure 1 to paragraphs (l) through (p) of this AD or figure 2 to paragraphs (l) through (p) of this AD, as applicable to the airplane model and MLG hinge part number, except as required by paragraph (o) of this AD. Accomplishment of the actions required by this paragraph terminates the actions required by paragraphs (g) and (i) of this AD. Accomplishment of the actions required by this paragraph terminates the replacement required by paragraph (k)(2) of this AD. (n) New Definition of Serviceable Hinge Pins for Paragraph (m) of This AD For the purpose of paragraph (m) of this AD, a serviceable MLG hinge pin is a pin that [[Page 24910]] is specified in paragraph (n)(1) or (n)(2) of this AD. (1) A hinge pin that does not belong to the identified batch as listed in the applicable Messier-Bugatti-Dowty Service Bulletin specified in figure 1 to paragraphs (l) through (p) of this AD or figure 2 to paragraphs (l) through (p) of this AD, as applicable to the airplane model and MLG hinge part number. (2) A hinge pin that can be identified, through the MLG maintenance records, as having been inspected and reconditioned in accordance with the Accomplishment Instructions of the applicable Messier-Bugatti-Dowty Service Bulletin specified in figure 1 to paragraphs (l) through (p) of this AD or figure 2 to paragraphs (l) through (p) of this AD, as applicable to the airplane model and MLG hinge part number. (o) New MLG Hinge Pin Replacement Procedures If, during accomplishment of the MLG hinge pin replacement required by paragraph (m) of this AD, the applicable Messier- Bugatti-Dowty Service Bulletin specified in figure 1 to paragraphs (l) through (p) of this AD or figure 2 to paragraphs (l) through (p) of this AD does not specify the MLG hinge pin replacement procedure, do the MLG hinge pin replacement using a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the EASA; or ATR-GIE Avions de Transport R[eacute]gional's EASA DOA. Do the MLG hinge pin replacement at the applicable compliance time specified in paragraph (m) of this AD. Accomplishment of the actions required by this paragraph terminates the hinge pin replacement required by paragraphs (g), (i), and (k)(2) of this AD. (p) New Parts Installation Limitation As of the effective date of this AD, no person may install on any airplane an MLG hinge pin having a part number identified in figure 1 to paragraphs (l) through (p) of this AD or figure 2 to paragraphs (l) through (p) of this AD, and having a serial number defined in the applicable Messier-Bugatti-Dowty Service Bulletin specified in figure 1 to paragraphs (l) through (p) of this AD or figure 2 to paragraphs (l) through (p) of this AD, as applicable to the airplane model and MLG hinge part number, unless the part can be conclusively identified, through the MLG maintenance records, as having been inspected and reconditioned in accordance with the Accomplishment Instructions of the applicable Messier-Bugatti-Dowty Service Bulletin. (q) Credit for Previous Actions (1) This paragraph restates the credit provided in paragraph (l) of AD 2015-23-12, with no changes. This paragraph provides credit for the actions required by paragraph (g) of this AD, if those actions were performed before December 29, 2015 (the effective date of AD 2105-23-12), using Messier-Bugatti-Dowty Service Bulletin 631- 32-216, dated October 30, 2013, which is not incorporated by reference in this AD. (2) This paragraph provides credit for the actions required by paragraphs (l) and (m) of this AD, if those actions were done before the effective date of this AD using the applicable service information specified in paragraph (q)(2)(i) through (q)(2)(x) of this AD. (i) Messier-Bugatti-Dowty Service Bulletin 631-32-213, December 16, 2013, which was incorporated by reference on December 29, 2015 (80 FR 73096, November 24, 2015). (ii) Messier-Bugatti-Dowty Service Bulletin 631-32-213, Revision 1, dated December 8, 2014, which is not incorporated by reference in this AD. (iii) Messier-Bugatti-Dowty Service Bulletin 631-32-214, dated January 13, 2014, which was incorporated by reference on December 29, 2015 (80 FR 73096, November 24, 2015). (iv) Messier-Bugatti-Dowty Service Bulletin 631-32-215, dated January 13, 2014, which was incorporated by reference on December 29, 2015 (80 FR 73096, November 24, 2015). (v) Messier-Bugatti-Dowty Service Bulletin 631-32-216, dated October 30, 2013, which is not incorporated by reference in this AD. (vi) Messier-Bugatti-Dowty Service Bulletin 631-32-216, Revision 1, dated December 17, 201, which was incorporated by reference on December 29, 2015 (80 FR 73096, November 24, 2015). (vii) Messier-Bugatti-Dowty Service Bulletin 631-32-216, Revision 2, dated December 8, 2014, which is not incorporated by reference in this AD. (viii) Messier-Bugatti-Dowty Service Bulletin 631-32-219, dated March 3, 2014, which was incorporated by reference on December 29, 2015 (80 FR 73096, November 24, 2015). (ix) Messier-Bugatti-Dowty Service Bulletin 631-32-220, dated March 3, 2014, which was incorporated by reference on December 29, 2015 (80 FR 73096, November 24, 2015). (x) Messier-Bugatti-Dowty Service Bulletin 631-32-232, dated December 8, 2014, which is not incorporated by reference in this AD. (r) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM-116, Transport Airplane Directorate, 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 International Branch, send it to the attention of the person identified in paragraph (s)(2) of this AD. Information may be emailed to: [email protected]. (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) AMOCs approved previously for AD 2015-23-12 are approved as AMOCs for the corresponding provisions of this AD. (2) Contacting the Manufacturer: As of the effective date of this AD, 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, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the EASA; or ATR-GIE Avions de Transport R[eacute]gional's EASA DOA. If approved by the DOA, the approval must include the DOA-authorized signature. (s) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) EASA Airworthiness Directive 2016-0135, dated July 8, 2016, for related information. This MCAI may be found in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-0516. (2) For more information about this AD, contact Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1112; fax 425-227-1149. (3) For service information identified in this AD, contact ATR- GIE Avions de Transport R[eacute]gional, 1, All[eacute]e Pierre Nadot, 31712 Blagnac Cedex, France; telephone +33 (0) 5 62 21 62 21; fax +33 (0) 5 62 21 67 18; email [email protected]; Internet http://www.aerochain.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 May 19, 2017. Victor Wicklund, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2017-10978 Filed 5-30-17; 8:45 am] BILLING CODE 4910-13-P
![24906 Federal Register / Vol. 82, No. 103 / Wednesday, May 31, 2017 / Proposed Rules
Information Collection Clearance Officer, must be replaced, and certain SUPPLEMENTARY INFORMATION:
AES–200. compliance times must be reduced. This
Comments Invited
(n) Related Information proposed AD would require identifying
the serial number and part number of We invite you to send any written
(1) Refer to Mandatory Continuing
the MLG rear hinge pins, and replacing relevant data, views, or arguments about
Airworthiness Information (MCAI) EASA AD
2016–0150, dated July 25, 2016, for related pins if necessary. We are proposing this this proposed AD. Send your comments
information. This MCAI may be found in the AD to address the unsafe condition on to an address listed under the
AD docket on the Internet at http:// these products. ADDRESSES section. Include ‘‘Docket No.
www.regulations.gov by searching for and DATES: We must receive comments on FAA–2017–0516; Directorate Identifier
locating Docket No. FAA–2017–0520. this proposed AD by July 17, 2017. 2016–NM–125–AD’’ at the beginning of
(2) For more information about this AD, your comments. We specifically invite
ADDRESSES: You may send comments,
contact Dan Rodina, Aerospace Engineer, comments on the overall regulatory,
International Branch, ANM–116, Transport using the procedures found in 14 CFR
11.43 and 11.45, by any of the following economic, environmental, and energy
Airplane Directorate, FAA, 1601 Lind
methods: aspects of this proposed AD. We will
Avenue SW., Renton, WA 98057–3356;
telephone: 425–227–2125; fax: 425–227– • Federal eRulemaking Portal: Go to consider all comments received by the
1149. http://www.regulations.gov. Follow the closing date and may amend this
(3) For service information identified in instructions for submitting comments. proposed AD based on those comments.
this AD, contact Airbus SAS, Airworthiness • Fax: 202–493–2251. We will post all comments we
Office—EAW, 1 Rond Point Maurice • Mail: U.S. Department of receive, without change, to http://
Bellonte, 31707 Blagnac Cedex, France; Transportation, Docket Operations, M– www.regulations.gov, including any
telephone: +33 5 61 93 36 96; fax: +33 5 61 30, West Building Ground Floor, Room personal information you provide. We
93 44 51; email: account.airworth-eas@ W12–140, 1200 New Jersey Avenue SE., will also post a report summarizing each
airbus.com; Internet: http://www.airbus.com. substantive verbal contact we receive
Washington, DC 20590.
You may view this service information at the
• Hand Delivery: U.S. Department of about this proposed AD.
FAA, Transport Airplane Directorate, 1601
Lind Avenue SW., Renton, WA. For Transportation, Docket Operations, M–
Discussion
information on the availability of this 30, West Building Ground Floor, Room
material at the FAA, call 425–227–1221. W12–140, 1200 New Jersey Avenue SE., On November 12, 2015, we issued AD
Washington, DC, between 9 a.m. and 5 2015–23–12, Amendment 39–18329 (80
Issued in Renton, Washington, on May 19,
p.m., Monday through Friday, except FR 73096, November 24, 2015) (‘‘AD
2017.
Federal holidays. 2015–23–12’’), for all ATR—GIE Avions
Victor Wicklund,
For service information identified in de Transport Régional Model ATR42
Acting Manager, Transport Airplane this NPRM, contact ATR—GIE Avions and ATR72 airplanes. AD 2015–23–12
Directorate, Aircraft Certification Service. de Transport Régional, 1, Allée Pierre was prompted by new occurrences of
[FR Doc. 2017–10979 Filed 5–30–17; 8:45 am] Nadot, 31712 Blagnac Cedex, France; certain cracked MLG rear hinge pins.
BILLING CODE 4910–13–P telephone +33 (0) 5 62 21 62 21; fax +33 AD 2015–23–12 requires identifying the
(0) 5 62 21 67 18; email serial number and part number of the
continued.airworthiness@atr.fr; Internet MLG rear hinge pins, and replacing pins
DEPARTMENT OF TRANSPORTATION http://www.aerochain.com. You may or the MLG if necessary. We issued AD
view this referenced service information 2015–23–12 to detect and correct
Federal Aviation Administration
at the FAA, Transport Airplane cracked rear hinge pins, which could
Directorate, 1601 Lind Avenue SW., lead to MLG structural failure, possibly
14 CFR Part 39
Renton, WA. For information on the resulting in collapse of the MLG and
[Docket No. FAA–2017–0516; Directorate availability of this material at the FAA, consequent injury to the occupants of
Identifier 2016–NM–125–AD] call 425–227–1221. the airplane.
RIN 2120–AA64 Examining the AD Docket Since we issued AD 2015–23–12, we
have received a new report of a cracked
Airworthiness Directives; ATR—GIE You may examine the AD docket on MLG hinge pin having P/N D62055 on
Avions de Transport Régional the Internet at http:// a Model ATR42 airplane. We have
Airplanes www.regulations.gov by searching for determined that certain additional MLG
and locating Docket No. FAA–2017– hinge pins must be replaced, and certain
AGENCY: Federal Aviation 0516; or in person at the Docket compliance times must be reduced.
Administration (FAA), DOT. Management Facility between 9 a.m. The European Aviation Safety Agency
ACTION: Notice of proposed rulemaking and 5 p.m., Monday through Friday, (EASA), which is the Technical Agent
(NPRM). except Federal holidays. The AD docket for the Member States of the European
contains this proposed AD, the Union, has issued EASA Airworthiness
SUMMARY: We propose to supersede regulatory evaluation, any comments Directive 2016–0135, dated July 8, 2016
Airworthiness Directive (AD) 2015–23– received, and other information. The (referred to after this as the Mandatory
12, for all ATR—GIE Avions de street address for the Docket Operations Continuing Airworthiness Information,
Transport Régional Model ATR42 and office (telephone 800–647–5527) is in or ‘‘the MCAI’’), to correct an unsafe
ATR72 airplanes. AD 2015–23–12 the ADDRESSES section. Comments will condition for all ATR—GIE Avions de
currently requires identifying the serial be available in the AD docket shortly Transport Régional Model ATR42 and
nlaroche on DSK30NT082PROD with PROPOSALS
number and part number of the main after receipt. ATR72 airplanes. The MCAI states:
landing gear (MLG) rear hinge pins, and FOR FURTHER INFORMATION CONTACT:
replacing pins or the MLG if necessary. Prompted by cases of rupture of main
Shahram Daneshmandi, Aerospace
landing gear (MLG) rear hinge pin part
Since we issued AD 2015–23–12, we Engineer, International Branch, ANM– number (P/N) D61000 encountered in service
have received a new report of a certain 116, Transport Airplane Directorate, in 1994 and 1996, DGAC [Direction Générale
cracked MLG hinge pin on a Model FAA, 1601 Lind Avenue SW., Renton, de l’Aviation Civile] France issued AD 96–
ATR42 airplane. We have determined WA 98057–3356; telephone 425–227– 131–064 (B) for ATR42 aeroplanes and AD
that certain additional MLG hinge pins 1112; fax 425–227–1149. 96–096–029 (B) for ATR72 aeroplanes to
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![Federal Register / Vol. 82, No. 103 / Wednesday, May 31, 2017 / Proposed Rules 24907
require inspection and, depending on • Service Bulletin 631–32–224, dated U.S. operators to be $1,050,840, or
findings, corrective action. Since those March 15, 2016. $16,680 per product.
[French] ADs were issued, new occurrences • Service Bulletin 631–32–231, dated According to the manufacturer, some
of cracked rear hinge pin P/N [part number] of the costs of this proposed AD may be
March 15, 2016.
D61000 were reported on ATR72 MLG. The
result of subsequent investigation revealed • Service Bulletin 631–32–232, covered under warranty, thereby
that the affected pins were subjected to a Revision 1, dated March 15, 2016. reducing the cost impact on affected
non-detected thermal abuse done in • Service Bulletin 631–32–233, dated individuals. We do not control warranty
production during grinding process. Analysis March 15, 2016. coverage for affected individuals. As a
also showed that other MLG pin P/N’s could • Service Bulletin 631–32–234, dated result, we have included all costs in our
be affected by the same production issue. March 15, 2016. cost estimate.
This condition, if not detected and
• Service Bulletin 631–32–235, dated Authority for This Rulemaking
corrected, could lead to structural failure and
consequent collapse of the MLG, possibly March 15, 2016. Title 49 of the United States Code
resulting in damage to the aeroplane and This service information is reasonably specifies the FAA’s authority to issue
injury to the occupants. available because the interested parties rules on aviation safety. Subtitle I,
To address this potential unsafe condition, have access to it through their normal section 106, describes the authority of
EASA issued AD 2014–0074 [which course of business or by the means the FAA Administrator. ‘‘Subtitle VII:
corresponds to FAA AD 2015–23–12] to identified in the ADDRESSES section.
require inspection and, depending on
Aviation Programs,’’ describes in more
findings, replacement of affected pins. FAA’s Determination and Requirements detail the scope of the Agency’s
After EASA AD 2014–0074 was issued, a of This Proposed AD authority.
new occurrence was reported of a cracked We are issuing this rulemaking under
MLG hinge pin P/N D62055 installed on the This product has been approved by the authority described in ‘‘Subtitle VII,
MLG Side Brace of an ATR42 aeroplane. This the aviation authority of another Part A, Subpart III, Section 44701:
new occurrence was also identified as related country, and is approved for operation General requirements.’’ Under that
to a non-detected thermal abuse done in in the United States. Pursuant to our section, Congress charges the FAA with
production during grinding process. bilateral agreement with the State of promoting safe flight of civil aircraft in
Prompted by this new occurrence, Messier Design Authority, we have been notified air commerce by prescribing regulations
Bugatti Dowty (MBD) updated the list of of the unsafe condition described in the for practices, methods, and procedures
MLG hinge pins affected by this unsafe MCAI and service information
condition by adding serial numbers (S/N), the Administrator finds necessary for
referenced above. We are proposing this safety in air commerce. This regulation
which were previously not considered by
EASA AD 2014–0074. In addition, it was AD because we evaluated all pertinent is within the scope of that authority
determined that the compliance time for information and determined an unsafe because it addresses an unsafe condition
replacement of pins with P/N D62055 must condition exists and is likely to exist or that is likely to exist or develop on
be reduced. The six affected MBD Service develop on other products of the same products identified in this rulemaking
Bulletins (SB) were revised accordingly, and type designs. action.
six new ones were also published to address
this issue. Differences Between This Proposed AD Regulatory Findings
For the reasons described above, this and the MCAI or Service Information We determined that this proposed AD
[EASA] AD retains the requirements of EASA In MCAI table 1 and table 2, the MCAI would not have federalism implications
AD 2014–0074, which is superseded, but
specifies the compliance time under Executive Order 13132. This
addresses an expanded MLG hinge pin
population with appropriate compliance terminology, ‘‘whichever occurs later,’’ proposed AD would not have a
time(s). between compliance time A and B. substantial direct effect on the States, on
However, this proposed AD specifies the relationship between the national
You may examine the MCAI in the AD the phrase, ‘‘whichever occurs first,’’ Government and the States, or on the
docket on the Internet at http:// instead of ‘‘whichever occurs later.’’ distribution of power and
www.regulations.gov by searching for This difference has been coordinated responsibilities among the various
and locating Docket No. FAA–2017– with EASA and ATR—GIE Avions de levels of government.
0516. Transport Régional. For the reasons discussed above, I
Related Service Information Under 1 certify this proposed regulation:
Costs of Compliance 1. Is not a ‘‘significant regulatory
CFR Part 51
We estimate that this proposed AD action’’ under Executive Order 12866;
Messier-Bugatti-Dowty has issued the 2. Is not a ‘‘significant rule’’ under the
following service information, which affects 63 airplanes of U.S. registry.
The actions required by AD 2015–23– DOT Regulatory Policies and Procedures
describes procedures for inspecting and (44 FR 11034, February 26, 1979);
replacing the MLG hinge pin. These 12, and retained in this proposed AD
3. Will not affect intrastate aviation in
documents are distinct since they apply take about 8 work-hours per product, at
Alaska; and
to different airplane models and an average labor rate of $85 per work- 4. Will not have a significant
different MLG hinge pin part numbers. hour. Required parts will cost about economic impact, positive or negative,
• Service Bulletin 631–32–213, $16,000 per product. Based on these on a substantial number of small entities
Revision 2, dated March 15, 2016. figures, the estimated cost of the actions under the criteria of the Regulatory
• Service Bulletin 631–32–214, that are required by AD 2015–23–12 is Flexibility Act.
Revision 1, dated March 15, 2016. $16,680 per product.
nlaroche on DSK30NT082PROD with PROPOSALS
• Service Bulletin 631–32–215, We also estimate that it would take List of Subjects in 14 CFR Part 39
Revision 1, dated March 15, 2016. about 8 work-hours per product to Air transportation, Aircraft, Aviation
• Service Bulletin 631–32–216, comply with the basic requirements of safety, Incorporation by reference,
Revision 3, dated March 15, 2016. this proposed AD. The average labor Safety.
• Service Bulletin 631–32–219, rate is $85 per work-hour. Required
Revision 1, dated March 15, 2016. parts would cost about $16,000 per The Proposed Amendment
• Service Bulletin 631–32–220, product. Based on these figures, we Accordingly, under the authority
Revision 1, dated March 15, 2016. estimate the cost of this proposed AD on delegated to me by the Administrator,
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![24908 Federal Register / Vol. 82, No. 103 / Wednesday, May 31, 2017 / Proposed Rules
the FAA proposes to amend 14 CFR part Bulletin 631–32–213, dated December 16, inspection for the part number and serial
39 as follows: 2013; or Messier-Bugatti-Dowty Service number of the LH and RH MLG rear hinge
Bulletin 631–32–216, Revision 1, dated pins required by this paragraph.
PART 39—AIRWORTHINESS December 17, 2013; as applicable: Within 12 Accomplishment of the actions required by
DIRECTIVES months after December 29, 2015, replace the paragraph (m) or (o) of this AD terminates the
pin with a serviceable part as identified in actions required by this paragraph.
■ 1. The authority citation for part 39 paragraph (h) of this AD, in accordance with (1) No later than the next MLG overhaul
continues to read as follows: the Accomplishment Instructions of Messier- scheduled after December 29, 2015 (the
Bugatti-Dowty Service Bulletin 631–32–213, effective date of AD 2105–23–12).
Authority: 49 U.S.C. 106(g), 40113, 44701. dated December 16, 2013; or Messier-Bugatti- (2) Within 20,000 flight cycles or 9 years,
Dowty Service Bulletin 631–32–216, whichever occurs first, accumulated since
§ 39.13 [Amended]
Revision 1, dated December 17, 2013; as installation of the MLG on an airplane since
■ 2. The FAA amends § 39.13 by applicable. Accomplishment of the actions new or since last overhaul, as applicable.
removing Airworthiness Directive (AD) required by paragraph (l) of this AD
(j) Retained Definition of Serviceable MLG
2015–23–12, Amendment 39–18329 (80 terminates the inspection required by this
paragraph. Accomplishing the actions for Model ATR72 Airplanes for Paragraph
FR 73096, November 24, 2015), and (i) of this AD, With No Changes
adding the following new AD: required by paragraph (m) or (o) of this AD
terminates the actions required by this This paragraph restates the definition in
ATR–GIE Avions de Transport Régional: paragraph. paragraph (j) of AD 2015–23–12, with no
Docket No. FAA–2017–0516; Directorate changes. For Model ATR72 airplanes: For
Identifier 2016–NM–125–AD. (h) Retained Definition of Serviceable Hinge purposes of paragraph (i) of this AD, a
Pin for Model ATR72 Airplanes for serviceable MLG is one that incorporates pins
(a) Comments Due Date Paragraph (g) of this AD, With No Changes specified in paragraph (j)(1) or (j)(2) of this
We must receive comments by July 17, This paragraph restates the definition in AD.
2017. paragraph (h) of AD 2015–23–12, with no (1) Pins that are not identified in Messier-
(b) Affected ADs changes. For Model ATR72 airplanes: For Bugatti-Dowty Service Bulletin 631–32–214,
purposes of paragraph (g) of this AD, a dated January 13, 2014; or Messier-Bugatti-
This AD replaces AD 2015–23–12,
serviceable MLG rear hinge pin is a pin that Dowty Service Bulletin 631–32–219, dated
Amendment 39–18329 (80 FR 73096,
is specified in paragraph (h)(1) or (h)(2) of March 3, 2014; as applicable.
November 24, 2015) (‘‘AD 2015–23–12’’).
this AD. (2) Pins that have been inspected and
(c) Applicability (1) A hinge pin that is not identified in reconditioned in accordance with the
This AD applies to ATR–GIE Avions de Messier-Bugatti-Dowty Service Bulletin 631– Accomplishment Instructions of Messier-
Transport Régional Model ATR42–200, –300, 32–213, dated December 16, 2013; or Bugatti-Dowty Service Bulletin 631–32–214,
–320, and –500 airplanes; and ATR72–101, Messier-Bugatti-Dowty Service Bulletin 631– dated January 13, 2014; or Messier-Bugatti-
–201, –102, –202, –211, –212, and –212A 32–216, Revision 1, dated December 17, Dowty Service Bulletin 631–32–219, dated
airplanes; certificated in any category; all 2013; as applicable. March 3, 2014; as applicable.
certified models; all manufacturer serial (2) A hinge pin that has been inspected and
reconditioned, in accordance with the (k) Retained MLG Pin Identification and
numbers. Replacement for Model ATR42 Airplanes,
Accomplishment Instructions of Messier-
(d) Subject Bugatti-Dowty Service Bulletin 631–32–213, With Terminating Action
Air Transport Association (ATA) of dated December 16, 2013; or Messier-Bugatti- This paragraph restates the requirements of
America Code 32, Landing Gear. Dowty Service Bulletin 631–32–216, paragraph (k) of AD 2015–23–12, with
Revision 1, dated December 17, 2013; as terminating action. Accomplishment of the
(e) Reason applicable. actions required by paragraph (l) of this AD
This AD was prompted by a new terminates the actions required by paragraph
(i) Retained MLG Pin Identification and (k)(1) of this AD. Accomplishment of the
occurrence of a cracked main landing gear
Replacement for Model ATR72 Airplanes, actions required by paragraph (m) or (o) of
(MLG) rear hinge pin. We are issuing this AD
With Terminating Action this AD terminates the actions required by
to detect and correct cracked rear hinge pins,
which could lead to MLG structural failure, This paragraph restates the requirements of paragraph (k)(2) of this AD.
possibly resulting in collapse of the MLG and paragraph (i) of AD 2015–23–12, with (1) For Model ATR42 airplanes: Within the
consequent injury to the occupants of the terminating action. For Model ATR72 compliance time identified in paragraph
airplane. airplanes: At the earlier of the times specified (k)(1)(i) or (k)(1)(ii) of this AD, whichever
in paragraphs (i)(1) and (i)(2) of this AD, occurs first, inspect for any LH and RH MLG
(f) Compliance inspect all LH and RH MLG pins for a part pins having a part number and serial number
Comply with this AD within the number and serial number listed in Messier- listed in Messier-Bugatti-Dowty Service
compliance times specified, unless already Bugatti-Dowty Service Bulletin 631–32–214, Bulletin 631–32–215, dated January 13, 2014;
done. dated January 13, 2014; or Messier-Bugatti- or Messier-Bugatti-Dowty Service Bulletin
Dowty Service Bulletin 631–32–219, dated 631–32–220, dated March 3, 2014; as
(g) Retained Hinge Pin Identification and March 3, 2014; as applicable. A review of applicable. A review of airplane maintenance
Replacement for Model ATR72 Airplanes, airplane maintenance records is acceptable in records is acceptable in lieu of this
With Terminating Action lieu of this inspection if the part number and identification if the part number and serial
This paragraph restates the requirements of serial number of the LH and RH MLG pin can number of the LH and RH MLG pin can be
paragraph (g) of AD 2015–23–12, with be conclusively determined from that review. conclusively determined from that review.
terminating action. For Model ATR72 If any affected MLG pin is found: At the (i) No later than the next MLG overhaul
airplanes: Within 12 months after December earlier of the compliance times specified in scheduled after December 29, 2015 (the
29, 2015 (the effective date of AD 2015–23– paragraphs (i)(1) and (i)(2) of this AD, replace effective date of AD 2015–23–12).
12), inspect for the serial number of the left- the MLG with a serviceable MLG as (ii) Within 20,000 flight cycles or 9 years,
nlaroche on DSK30NT082PROD with PROPOSALS
hand (LH) and right-hand (RH) MLG rear identified in paragraph (j) of this AD, using whichever occurs first, accumulated since
hinge pins having part number (P/N) D61000. a method approved by the Manager, installation of the MLG on an airplane since
A review of airplane maintenance records is International Branch, ANM–116, Transport new or since last overhaul, as applicable.
acceptable in lieu of this identification if the Airplane Directorate, FAA; or the European (2) If the MLG pin having a part number
part number and serial number of the LH and Aviation Safety Agency (EASA); or ATR–GIE and serial number listed in Messier-Bugatti-
RH MLG rear hinge pins can be conclusively Avions de Transport Régional’s EASA Design Dowty Service Bulletin 631–32–215, dated
determined from that review. If a rear hinge Organization Approval (DOA). January 13, 2014; or Messier-Bugatti-Dowty
pin having P/N D61000 has a serial number Accomplishment of the actions required by Service Bulletin 631–32–220, dated March 3,
listed in Messier-Bugatti-Dowty Service paragraph (l) of this AD terminates the 2014; as applicable; is found to be installed
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![24910 Federal Register / Vol. 82, No. 103 / Wednesday, May 31, 2017 / Proposed Rules
is specified in paragraph (n)(1) or (n)(2) of effective date of this AD using the applicable the Manager, International Branch, ANM–
this AD. service information specified in paragraph 116, Transport Airplane Directorate, FAA; or
(1) A hinge pin that does not belong to the (q)(2)(i) through (q)(2)(x) of this AD. the EASA; or ATR–GIE Avions de Transport
identified batch as listed in the applicable (i) Messier-Bugatti-Dowty Service Bulletin Régional’s EASA DOA. If approved by the
Messier-Bugatti-Dowty Service Bulletin 631–32–213, December 16, 2013, which was DOA, the approval must include the DOA-
specified in figure 1 to paragraphs (l) through incorporated by reference on December 29, authorized signature.
(p) of this AD or figure 2 to paragraphs (l) 2015 (80 FR 73096, November 24, 2015).
through (p) of this AD, as applicable to the (ii) Messier-Bugatti-Dowty Service Bulletin (s) Related Information
airplane model and MLG hinge part number. 631–32–213, Revision 1, dated December 8, (1) Refer to Mandatory Continuing
(2) A hinge pin that can be identified, 2014, which is not incorporated by reference Airworthiness Information (MCAI) EASA
through the MLG maintenance records, as in this AD. Airworthiness Directive 2016–0135, dated
having been inspected and reconditioned in (iii) Messier-Bugatti-Dowty Service July 8, 2016, for related information. This
accordance with the Accomplishment Bulletin 631–32–214, dated January 13, 2014, MCAI may be found in the AD docket on the
Instructions of the applicable Messier- which was incorporated by reference on Internet at http://www.regulations.gov by
Bugatti-Dowty Service Bulletin specified in December 29, 2015 (80 FR 73096, November searching for and locating Docket No. FAA–
figure 1 to paragraphs (l) through (p) of this 24, 2015). 2017–0516.
AD or figure 2 to paragraphs (l) through (p) (iv) Messier-Bugatti-Dowty Service Bulletin (2) For more information about this AD,
of this AD, as applicable to the airplane 631–32–215, dated January 13, 2014, which contact Shahram Daneshmandi, Aerospace
model and MLG hinge part number. was incorporated by reference on December Engineer, International Branch, ANM–116,
(o) New MLG Hinge Pin Replacement 29, 2015 (80 FR 73096, November 24, 2015). Transport Airplane Directorate, FAA, 1601
Procedures (v) Messier-Bugatti-Dowty Service Bulletin Lind Avenue SW., Renton, WA 98057–3356;
631–32–216, dated October 30, 2013, which telephone 425–227–1112; fax 425–227–1149.
If, during accomplishment of the MLG is not incorporated by reference in this AD. (3) For service information identified in
hinge pin replacement required by paragraph (vi) Messier-Bugatti-Dowty Service Bulletin this AD, contact ATR–GIE Avions de
(m) of this AD, the applicable Messier- 631–32–216, Revision 1, dated December 17, Transport Régional, 1, Allée Pierre Nadot,
Bugatti-Dowty Service Bulletin specified in 201, which was incorporated by reference on 31712 Blagnac Cedex, France; telephone +33
figure 1 to paragraphs (l) through (p) of this December 29, 2015 (80 FR 73096, November (0) 5 62 21 62 21; fax +33 (0) 5 62 21 67 18;
AD or figure 2 to paragraphs (l) through (p) 24, 2015). email continued.airworthiness@atr.fr;
of this AD does not specify the MLG hinge (vii) Messier-Bugatti-Dowty Service Internet http://www.aerochain.com. You may
pin replacement procedure, do the MLG Bulletin 631–32–216, Revision 2, dated view this service information at the FAA,
hinge pin replacement using a method December 8, 2014, which is not incorporated Transport Airplane Directorate, 1601 Lind
approved by the Manager, International by reference in this AD. Avenue SW., Renton, WA. For information
Branch, ANM–116, Transport Airplane (viii) Messier-Bugatti-Dowty Service on the availability of this material at the
Directorate, FAA; or the EASA; or ATR–GIE Bulletin 631–32–219, dated March 3, 2014, FAA, call 425–227–1221.
Avions de Transport Régional’s EASA DOA. which was incorporated by reference on
Do the MLG hinge pin replacement at the Issued in Renton, Washington, on May 19,
December 29, 2015 (80 FR 73096, November
applicable compliance time specified in 2017.
24, 2015).
paragraph (m) of this AD. Accomplishment of Victor Wicklund,
(ix) Messier-Bugatti-Dowty Service Bulletin
the actions required by this paragraph Acting Manager, Transport Airplane
631–32–220, dated March 3, 2014, which was
terminates the hinge pin replacement Directorate, Aircraft Certification Service.
incorporated by reference on December 29,
required by paragraphs (g), (i), and (k)(2) of
2015 (80 FR 73096, November 24, 2015). [FR Doc. 2017–10978 Filed 5–30–17; 8:45 am]
this AD.
(x) Messier-Bugatti-Dowty Service Bulletin BILLING CODE 4910–13–P
(p) New Parts Installation Limitation 631–32–232, dated December 8, 2014, which
As of the effective date of this AD, no is not incorporated by reference in this AD.
person may install on any airplane an MLG (r) Other FAA AD Provisions DEPARTMENT OF TRANSPORTATION
hinge pin having a part number identified in
figure 1 to paragraphs (l) through (p) of this The following provisions also apply to this
AD: Federal Aviation Administration
AD or figure 2 to paragraphs (l) through (p)
of this AD, and having a serial number (1) Alternative Methods of Compliance
(AMOCs): The Manager, International 14 CFR Part 39
defined in the applicable Messier-Bugatti-
Dowty Service Bulletin specified in figure 1 Branch, ANM–116, Transport Airplane
Directorate, FAA, has the authority to [Docket No. FAA–2017–0502; Directorate
to paragraphs (l) through (p) of this AD or Identifier 2016–NM–120–AD]
figure 2 to paragraphs (l) through (p) of this approve AMOCs for this AD, if requested
AD, as applicable to the airplane model and using the procedures found in 14 CFR 39.19.
RIN 2120–AA64
MLG hinge part number, unless the part can In accordance with 14 CFR 39.19, send your
be conclusively identified, through the MLG request to your principal inspector or local
Flight Standards District Office, as
Airworthiness Directives; Dassault
maintenance records, as having been Aviation Airplanes
inspected and reconditioned in accordance appropriate. If sending information directly
with the Accomplishment Instructions of the to the manager of the International Branch, AGENCY: Federal Aviation
applicable Messier-Bugatti-Dowty Service send it to the attention of the person
identified in paragraph (s)(2) of this AD.
Administration (FAA), DOT.
Bulletin.
Information may be emailed to: 9-ANM-116- ACTION: Notice of proposed rulemaking
(q) Credit for Previous Actions AMOC-REQUESTS@faa.gov. (NPRM).
(1) This paragraph restates the credit (i) Before using any approved AMOC,
provided in paragraph (l) of AD 2015–23–12, notify your appropriate principal inspector, SUMMARY: We propose to adopt a new
with no changes. This paragraph provides or lacking a principal inspector, the manager airworthiness directive (AD) for certain
credit for the actions required by paragraph of the local flight standards district office/ Dassault Aviation Model FALCON 7X
nlaroche on DSK30NT082PROD with PROPOSALS
(g) of this AD, if those actions were certificate holding district office. airplanes. This proposed AD was
performed before December 29, 2015 (the (ii) AMOCs approved previously for AD prompted by a discovery of
effective date of AD 2105–23–12), using 2015–23–12 are approved as AMOCs for the
noncompliant rivets in the flight deck
Messier-Bugatti-Dowty Service Bulletin 631– corresponding provisions of this AD.
32–216, dated October 30, 2013, which is not (2) Contacting the Manufacturer: As of the upper skin. This proposed AD would
incorporated by reference in this AD. effective date of this AD, for any requirement require replacement of noncompliant
(2) This paragraph provides credit for the in this AD to obtain corrective actions from rivets. We are proposing this AD to
actions required by paragraphs (l) and (m) of a manufacturer, the action must be address the unsafe condition on these
this AD, if those actions were done before the accomplished using a method approved by products.
VerDate Sep<11>2014 14:38 May 30, 2017 Jkt 241001 PO 00000 Frm 00029 Fmt 4702 Sfmt 4702 E:\FR\FM\31MYP1.SGM 31MYP1](https://thefederalregister.org/doc/82_FR_25009/page/5.svg)
Document Created: 2017-05-31 05:59:32
Document Modified: 2017-05-31 05:59:32
| 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 July 17, 2017. | |
| Contact | Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1112; fax 425-227-1149. | |
| FR Citation | 82 FR 24906 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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