Airworthiness Directives; British Aerospace Regional Aircraft Airplanes, 32510-32512 [2015-13918]

Download as PDF 32510 Federal Register / Vol. 80, No. 110 / Tuesday, June 9, 2015 / Proposed Rules PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): ■ MD Helicopters Inc.: Docket No. FAA–2015– 1998; Directorate Identifier 2014–SW– 035–AD. (a) Applicability This AD applies to MD Helicopters Inc. (MDHI) Model 500N with a rotating cone assembly part number (P/N) 500N3740–81 installed, and Model 600N helicopters with a rotating cone assembly P/N 500N3740–71 installed, certificated in any category. (b) Unsafe Condition This AD defines the unsafe condition as a rotating cone assembly remaining in service beyond its fatigue life. This condition could result in failure of the rotating cone assembly and loss of control of the helicopter. (c) Comments Due Date We must receive comments by August 10, 2015. tkelley on DSK3SPTVN1PROD with PROPOSALS (d) Compliance You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time. (e) Required Actions (1) Within 1 year or at the next annual inspection, whichever comes later: (i) Create a component history card or equivalent record for each rotating cone assembly, P/N 500N3740–81 and P/N 500N3740–71, and record a life limit of 10,000 hours time-in-service (TIS). (ii) Revise the Airworthiness Limitations Section of the applicable maintenance manual or Instructions for Continued Airworthiness by establishing a new retirement life of 10,000 hours TIS for each rotating cone assembly, P/N 500N3740–81 and P/N 500N3740–71, by making pen-andink changes or by inserting a copy of this AD into the Airworthiness Limitations Section of the maintenance manual or the Instructions for Continued Airworthiness. (iii) Remove from service any rotating cone assembly, P/N 500N3740–81 and P/N 500N3740–71, that has 10,000 or more hours TIS. (2) Do not install a rotating cone assembly, P/N 500N3740–81 or P/N 500N3740–71, on any helicopter unless you have complied with the requirements of this AD. (f) Alternative Methods of Compliance (AMOC) (1) The Manager, Los Angeles Aircraft Certification Office, FAA, may approve AMOCs for this AD. Send your proposal to: Galib Abumeri, Aerospace Engineer, Los Angeles Aircraft Certification Office, VerDate Sep<11>2014 17:11 Jun 08, 2015 Jkt 235001 Transport Airplane Directorate, FAA, 3960 Paramount Blvd., Lakewood, California 90712, telephone 562–627–5324; email 9ANM-LAACO-AMOC-REQUESTS@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office before operating any aircraft complying with this AD through an AMOC. (g) Additional Information MD Helicopters Inc. Service Bulletin SB500N–046/SB600N–054, dated July 9, 2012, which is not incorporated by reference, contains additional information about the subject of this AD. For service information identified in this AD, contact MD Helicopters, Inc., Attn: Customer Support Division, 4555 E. McDowell Rd., Mail Stop M615, Mesa, AZ 85215–9734; telephone 1– 800–388–3378; fax 480–346–6813; or at https://www.mdhelicopters.com. You may review a copy of information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 76137. (h) Subject Joint Aircraft Service Component (JASC) Code: 5302, Rotorcraft Tail Boom. Issued in Fort Worth, Texas, on May 29, 2015. Lance T. Gant, Acting Directorate Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 2015–13853 Filed 6–8–15; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2015–2048; Directorate Identifier 2015–CE–015–AD] RIN 2120–AA64 Airworthiness Directives; British Aerospace Regional Aircraft Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for British Aerospace Regional Aircraft Jetstream Series 3101 and Jetsream Model 3201 airplanes. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe SUMMARY: PO 00000 Frm 00023 Fmt 4702 Sfmt 4702 condition as missing countersunk washers under the head of the main landing gear trunnion cap tension bolts that could cause fatigue in the bolt shanks. We are issuing this proposed AD to require actions to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by July 24, 2015. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://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 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact BAE Systems (Operations) Limited, Customer Information Department, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; telephone: +44 1292 675207; fax: +44 1292 675704; email: RApublications@ baesystems.com; Internet: https:// www.baesystems.com/Businesses/ RegionalAircraft/. You may review this referenced service information at the FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call (816) 329– 4148. Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2015– 2048; 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 (telephone (800) 647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Taylor Martin, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329– 4138; fax: (816) 329–4090; email: taylor.martin@faa.gov. E:\FR\FM\09JNP1.SGM 09JNP1 Federal Register / Vol. 80, No. 110 / Tuesday, June 9, 2015 / Proposed Rules 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–2015–2048; Directorate Identifier 2015–CE–015–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 https:// 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 The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community, has issued AD No.: 2015– 0061, dated April 20, 2015 (referred to after this as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI states: tkelley on DSK3SPTVN1PROD with PROPOSALS The review of the BAE production drawing for main landing gear (MLG) fitting installation identified a risk of omitting installation of a countersunk washer under the head of the MLG trunnion cap tension bolts, potentially causing fatigue in the bolt shank under the head of such tension bolt(s). This condition, if not detected and corrected, could lead to failure of the bolt(s), thereby compromising the structural integrity of the other MLG tension bolts holding the MLG in place, possibly resulting in collapse of the MLG on take-off or landing with consequent damage to the aeroplane and injury to occupants. Although so far, no in-service bolt head failures have been reported since entry in to service of the type design in 1986, to address this potential unsafe condition, BAE Systems (Operations) Ltd issued Service Bulletin (SB) 57–JA120141 to provide inspection instructions. For the reasons described above, this AD requires inspection and, depending on findings, replacement of the MLG trunnion cap tension bolts. You may examine the MCAI on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA–2015–2048. Related Service Information Under 1 CFR Part 51 British Aerospace Regional Aircraft has issued British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 57– VerDate Sep<11>2014 17:11 Jun 08, 2015 Jkt 235001 JA120141, REVISION 1, dated April 8, 2014. The service information describes procedures for inspection and replacement of main landing gear trunnion cap tension bolts. 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 of this NPRM. FAA’s Determination and Requirements of the 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 this State of Design Authority, they have notified us of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all information and determined the unsafe condition exists and is likely to exist or develop on other products of the same type design. Costs of Compliance We estimate that this proposed AD will affect 66 products of U.S. registry. We also estimate that it would take about 6 work-hours per product to comply with the basic requirements of this proposed AD. The average labor rate is $85 per work-hour. Based on these figures, we estimate the cost of the proposed AD on U.S. operators to be $33,660, or $510 per product. In addition, we estimate that any necessary follow-on actions would take about 1 work-hour and require parts costing $1,200, for a cost of $1,285 per product. We have no way of determining the number of products that may need these actions. 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 PO 00000 Frm 00024 Fmt 4702 Sfmt 4702 32511 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 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: ■ British Aerospace Regional Aircraft: Docket No. FAA–2015–2048; Directorate Identifier 2015–CE–015–AD. (a) Comments Due Date We must receive comments by July 24, 2015. (b) Affected ADs None. (c) Applicability This AD applies to British Aerospace Regional Aircraft Jetstream Series 3101 and Jetsream Model 3201 airplanes, all serial numbers, certificated in any category. (d) Subject Air Transport Association of America (ATA) Code 32: Landing Gear. E:\FR\FM\09JNP1.SGM 09JNP1 32512 Federal Register / Vol. 80, No. 110 / Tuesday, June 9, 2015 / Proposed Rules (e) Reason This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as missing countersunk washers under the head of the main landing gear (MLG) trunnion cap tension bolts that could cause fatigue in the bolt shanks. We are issuing this AD to detect and correct missing countersunk washers, which could lead to failure of the bolt(s), thereby compromising the structural integrity of the other MLG tension bolts holding the MLG in place, possibly resulting in collapse of the MLG on take-off or landing with consequent damage to the airplane and injury to occupants. (f) Actions and Compliance Unless already done, do the actions in paragraphs (f)(1) through (f)(4) of this AD, including all subparagraphs, following the Accomplishment Instructions in British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 57–JA120141, REVISION 1, dated April 8, 2014: (1) This AD allows credit for the actions required in paragraphs (f)(3) and (f)(4), including all subparagraphs, of this AD if done before the effective date of this AD following the Accomplishment Instructions of British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 57–JA120141, Original Issue, dated: July 31, 2012. (2) For the purposes of this AD, owner/ operators who do not track total flight cycles (FC), multiply the total number of airplane hours time-in-service by 0.75 to calculate the FC. (3) For Pre-Mod JM5218 airplanes: Within 250 FC after the effective date of this AD, do a magnetic particle inspection (MPI) of each MLG trunnion cap tension bolt. (i) If no crack is found during the MPI required by paragraph (f)(1) of this AD, before further flight, either re-install the crack-free bolt(s) or install a replacement bolt(s) having the same part number (P/N) as the original bolt. Install a countersunk washer under the bolt(s) ensuring the washer P/N is applicable to the diameter bolt installed as specified in figure 1 of paragraph (f)(3)(i) of this AD. Bolt P/N Washer P/N MS21250H06040 ...... tkelley on DSK3SPTVN1PROD with PROPOSALS MS21250H07040 ...... PKS1000–6–2–S (washer). PKS1000–7–2–S (washer). Figure 1 of paragraph (f)(3)(i)—Pre-Mod JM5218 Replacement Parts (ii) If a cracked bolt is found during the inspection required by paragraph (f)(3) of this AD, before further flight, replace each cracked bolt with a replacement bolt having the same P/N as the original bolt. Install a countersunk washer under the bolt ensuring the washer P/N is applicable to the diameter bolt installed as specified in figure 1 of paragraph (f)(3)(i) of this AD. (4) For Post-Mod JM5218 airplanes: Visually inspect each MLG trunnion cap VerDate Sep<11>2014 20:21 Jun 08, 2015 Jkt 235001 tension bolt to determine which type of bolt is installed. (i) If it is determined the installed bolts are P/N MS21134H07045 or P/N MS21134H07059 during the inspection required in paragraph (f)(4) of this AD, before further flight (except as specified in paragraph (f)(4)(i)(A) of this AD), replace each ‘old’ bolt P/N with a ‘new’ bolt P/N as specified in figure 2 of paragraph (f)(4)(i) of this AD and install a washer having P/N PKS1000–7–2–S under each bolt. Bolt P/N ‘Old’ Bolt P/N ‘New’ MS21134H07045 ...... MS21134H07046, or MS21250H07046. MS21134H07060, or MS21250H07060. MS21134H07059 ...... Figure 2 of paragraph (f)(4)(i)—Post-Mod JM5218 Replacement Parts (A) If no ‘new’ replacement bolt is available to comply with paragraph (f)(4)(i) of this AD, the ‘old’ bolt may be reinstalled without a countersunk washer, provided that within 500 FC after reinstallation and repetitively thereafter at intervals not to exceed 500 FC, each affected bolt is inspected by MPI. (B) Within 2,000 FC after reinstallation of a bolt as allowed by paragraph (f)(4)(i)(A) of this AD or before further flight if a crack was found during any MPI as required by paragraph (f)(4)(i)(A) of this AD, whichever occurs first, replace the ‘old’ bolt P/N with a ‘new’ bolt P/N as specified in figure 2 of paragraph (f)(4)(i) of this AD and install a washer having P/N PKS1000–7–2–S under each bolt. (ii) If it is determined the installed bolts are P/N MS21250H07046 or P/N MS21250H07060 and no countersunk washer is installed during the inspection required in paragraph (f)(4) of this AD, before further flight, do an MPI of each MLG trunnion cap tension bolt. (A) If no crack is found during the MPI required by paragraph (f)(4)(ii) of this AD, before further flight, either re-install the crack-free bolts or install replacement bolts having a ‘new’ bolt P/N as specified in figure 2 of paragraph (f)(4)(i) of this AD and install a countersunk washer P/N PKS1000–7–2–S under each bolt. (B) If any crack is found during the MPI required by paragraph (f)(4)(ii) of this AD, before further flight, replace each cracked bolt with a serviceable one having a ‘new’ bolt P/N as specified in figure 2 of paragraph (f)(4)(i) of this AD and install a countersunk washer P/N PKS1000–7–2–S under each bolt. (g) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Taylor Martin, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4138; fax: (816) 329– 4090; email: taylor.martin@faa.gov. Before PO 00000 Frm 00025 Fmt 4702 Sfmt 4702 using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (h) Related Information Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 2015–0061, dated April 20, 2015; and British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 57–JA120141, Original Issue, dated: July 31, 2012, for related information. You may examine the MCAI on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2015–2048. For service information related to this AD, contact BAE Systems (Operations) Limited, Customer Information Department, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; telephone: +44 1292 675207; fax: +44 1292 675704; email: RApublications@baesystems.com; Internet: https://www.baesystems.com/Businesses/ RegionalAircraft/. You may review this referenced service information at the FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call (816) 329–4148. Issued in Kansas City, Missouri, on June 1, 2015. Earl Lawrence, Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 2015–13918 Filed 6–8–15; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Parts 101 and 105 [Docket No. USCG–2013–1087] Seafarers’ Access to Maritime Facilities Correction In proposed rule document 2015– 12657 appearing on pages 30189–30190 in the issue of Wednesday, May 27, 2015, make the following correction(s): On page 30189, in the DATES section, in the fourth line, ‘‘July 1, 2015’’ should read ‘‘July 27, 2015’’. [FR Doc. C1–2015–12657 Filed 6–8–15; 8:45 am] BILLING CODE 1505–01–P E:\FR\FM\09JNP1.SGM 09JNP1

Agencies

[Federal Register Volume 80, Number 110 (Tuesday, June 9, 2015)]
[Proposed Rules]
[Pages 32510-32512]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-13918]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-2048; Directorate Identifier 2015-CE-015-AD]
RIN 2120-AA64


Airworthiness Directives; British Aerospace Regional Aircraft 
Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
British Aerospace Regional Aircraft Jetstream Series 3101 and Jetsream 
Model 3201 airplanes. This proposed AD results from mandatory 
continuing airworthiness information (MCAI) originated by an aviation 
authority of another country to identify and correct an unsafe 
condition on an aviation product. The MCAI describes the unsafe 
condition as missing countersunk washers under the head of the main 
landing gear trunnion cap tension bolts that could cause fatigue in the 
bolt shanks. We are issuing this proposed AD to require actions to 
address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by July 24, 2015.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to https://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 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact BAE 
Systems (Operations) Limited, Customer Information Department, 
Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United 
Kingdom; telephone: +44 1292 675207; fax: +44 1292 675704; email: 
RApublications@baesystems.com; Internet: https://www.baesystems.com/Businesses/RegionalAircraft/. You may review this referenced service 
information at the FAA, Small Airplane Directorate, 901 Locust, Kansas 
City, Missouri 64106. For information on the availability of this 
material at the FAA, call (816) 329-4148.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2015-
2048; 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 (telephone (800) 647-5527) is in the ADDRESSES section. Comments 
will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Taylor Martin, Aerospace Engineer, 
FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, 
Missouri 64106; telephone: (816) 329-4138; fax: (816) 329-4090; email: 
taylor.martin@faa.gov.

[[Page 32511]]


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-2015-2048; 
Directorate Identifier 2015-CE-015-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 https://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

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Community, has issued AD 
No.: 2015-0061, dated April 20, 2015 (referred to after this as ``the 
MCAI''), to correct an unsafe condition for the specified products. The 
MCAI states:

    The review of the BAE production drawing for main landing gear 
(MLG) fitting installation identified a risk of omitting 
installation of a countersunk washer under the head of the MLG 
trunnion cap tension bolts, potentially causing fatigue in the bolt 
shank under the head of such tension bolt(s).
    This condition, if not detected and corrected, could lead to 
failure of the bolt(s), thereby compromising the structural 
integrity of the other MLG tension bolts holding the MLG in place, 
possibly resulting in collapse of the MLG on take-off or landing 
with consequent damage to the aeroplane and injury to occupants.
    Although so far, no in-service bolt head failures have been 
reported since entry in to service of the type design in 1986, to 
address this potential unsafe condition, BAE Systems (Operations) 
Ltd issued Service Bulletin (SB) 57-JA120141 to provide inspection 
instructions.
    For the reasons described above, this AD requires inspection 
and, depending on findings, replacement of the MLG trunnion cap 
tension bolts.

    You may examine the MCAI on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2015-
2048.

Related Service Information Under 1 CFR Part 51

    British Aerospace Regional Aircraft has issued British Aerospace 
Jetstream Series 3100 & 3200 Service Bulletin 57-JA120141, REVISION 1, 
dated April 8, 2014. The service information describes procedures for 
inspection and replacement of main landing gear trunnion cap tension 
bolts. 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 of this 
NPRM.

FAA's Determination and Requirements of the 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 this State of Design Authority, they 
have notified us of the unsafe condition described in the MCAI and 
service information referenced above. We are proposing this AD because 
we evaluated all information and determined the unsafe condition exists 
and is likely to exist or develop on other products of the same type 
design.

Costs of Compliance

    We estimate that this proposed AD will affect 66 products of U.S. 
registry. We also estimate that it would take about 6 work-hours per 
product to comply with the basic requirements of this proposed AD. The 
average labor rate is $85 per work-hour.
    Based on these figures, we estimate the cost of the proposed AD on 
U.S. operators to be $33,660, or $510 per product.
    In addition, we estimate that any necessary follow-on actions would 
take about 1 work-hour and require parts costing $1,200, for a cost of 
$1,285 per product. We have no way of determining the number of 
products that may need these actions.

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 AD:

British Aerospace Regional Aircraft: Docket No. FAA-2015-2048; 
Directorate Identifier 2015-CE-015-AD.

(a) Comments Due Date

    We must receive comments by July 24, 2015.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to British Aerospace Regional Aircraft Jetstream 
Series 3101 and Jetsream Model 3201 airplanes, all serial numbers, 
certificated in any category.

(d) Subject

    Air Transport Association of America (ATA) Code 32: Landing 
Gear.

[[Page 32512]]

(e) Reason

    This AD was prompted by mandatory continuing airworthiness 
information (MCAI) originated by an aviation authority of another 
country to identify and correct an unsafe condition on an aviation 
product. The MCAI describes the unsafe condition as missing 
countersunk washers under the head of the main landing gear (MLG) 
trunnion cap tension bolts that could cause fatigue in the bolt 
shanks. We are issuing this AD to detect and correct missing 
countersunk washers, which could lead to failure of the bolt(s), 
thereby compromising the structural integrity of the other MLG 
tension bolts holding the MLG in place, possibly resulting in 
collapse of the MLG on take-off or landing with consequent damage to 
the airplane and injury to occupants.

(f) Actions and Compliance

    Unless already done, do the actions in paragraphs (f)(1) through 
(f)(4) of this AD, including all subparagraphs, following the 
Accomplishment Instructions in British Aerospace Jetstream Series 
3100 & 3200 Service Bulletin 57-JA120141, REVISION 1, dated April 8, 
2014:
    (1) This AD allows credit for the actions required in paragraphs 
(f)(3) and (f)(4), including all subparagraphs, of this AD if done 
before the effective date of this AD following the Accomplishment 
Instructions of British Aerospace Jetstream Series 3100 & 3200 
Service Bulletin 57-JA120141, Original Issue, dated: July 31, 2012.
    (2) For the purposes of this AD, owner/operators who do not 
track total flight cycles (FC), multiply the total number of 
airplane hours time-in-service by 0.75 to calculate the FC.
    (3) For Pre-Mod JM5218 airplanes: Within 250 FC after the 
effective date of this AD, do a magnetic particle inspection (MPI) 
of each MLG trunnion cap tension bolt.
    (i) If no crack is found during the MPI required by paragraph 
(f)(1) of this AD, before further flight, either re-install the 
crack-free bolt(s) or install a replacement bolt(s) having the same 
part number (P/N) as the original bolt. Install a countersunk washer 
under the bolt(s) ensuring the washer P/N is applicable to the 
diameter bolt installed as specified in figure 1 of paragraph 
(f)(3)(i) of this AD.

------------------------------------------------------------------------
                 Bolt P/N                            Washer P/N
------------------------------------------------------------------------
MS21250H06040.............................  PKS1000-6-2-S (washer).
MS21250H07040.............................  PKS1000-7-2-S (washer).
------------------------------------------------------------------------

    Figure 1 of paragraph (f)(3)(i)--Pre-Mod JM5218 Replacement 
Parts
    (ii) If a cracked bolt is found during the inspection required 
by paragraph (f)(3) of this AD, before further flight, replace each 
cracked bolt with a replacement bolt having the same P/N as the 
original bolt. Install a countersunk washer under the bolt ensuring 
the washer P/N is applicable to the diameter bolt installed as 
specified in figure 1 of paragraph (f)(3)(i) of this AD.
    (4) For Post-Mod JM5218 airplanes: Visually inspect each MLG 
trunnion cap tension bolt to determine which type of bolt is 
installed.
    (i) If it is determined the installed bolts are P/N 
MS21134H07045 or P/N MS21134H07059 during the inspection required in 
paragraph (f)(4) of this AD, before further flight (except as 
specified in paragraph (f)(4)(i)(A) of this AD), replace each `old' 
bolt P/N with a `new' bolt P/N as specified in figure 2 of paragraph 
(f)(4)(i) of this AD and install a washer having P/N PKS1000-7-2-S 
under each bolt.

------------------------------------------------------------------------
              Bolt P/N `Old'                       Bolt P/N `New'
------------------------------------------------------------------------
MS21134H07045.............................  MS21134H07046, or
                                             MS21250H07046.
MS21134H07059.............................  MS21134H07060, or
                                             MS21250H07060.
------------------------------------------------------------------------

    Figure 2 of paragraph (f)(4)(i)--Post-Mod JM5218 Replacement 
Parts
    (A) If no `new' replacement bolt is available to comply with 
paragraph (f)(4)(i) of this AD, the `old' bolt may be reinstalled 
without a countersunk washer, provided that within 500 FC after 
reinstallation and repetitively thereafter at intervals not to 
exceed 500 FC, each affected bolt is inspected by MPI.
    (B) Within 2,000 FC after reinstallation of a bolt as allowed by 
paragraph (f)(4)(i)(A) of this AD or before further flight if a 
crack was found during any MPI as required by paragraph (f)(4)(i)(A) 
of this AD, whichever occurs first, replace the `old' bolt P/N with 
a `new' bolt P/N as specified in figure 2 of paragraph (f)(4)(i) of 
this AD and install a washer having P/N PKS1000-7-2-S under each 
bolt.
    (ii) If it is determined the installed bolts are P/N 
MS21250H07046 or P/N MS21250H07060 and no countersunk washer is 
installed during the inspection required in paragraph (f)(4) of this 
AD, before further flight, do an MPI of each MLG trunnion cap 
tension bolt.
    (A) If no crack is found during the MPI required by paragraph 
(f)(4)(ii) of this AD, before further flight, either re-install the 
crack-free bolts or install replacement bolts having a `new' bolt P/
N as specified in figure 2 of paragraph (f)(4)(i) of this AD and 
install a countersunk washer P/N PKS1000-7-2-S under each bolt.
    (B) If any crack is found during the MPI required by paragraph 
(f)(4)(ii) of this AD, before further flight, replace each cracked 
bolt with a serviceable one having a `new' bolt P/N as specified in 
figure 2 of paragraph (f)(4)(i) of this AD and install a countersunk 
washer P/N PKS1000-7-2-S under each bolt.

(g) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Standards Office, FAA, has the authority to approve AMOCs for this 
AD, if requested using the procedures found in 14 CFR 39.19. Send 
information to ATTN: Taylor Martin, Aerospace Engineer, FAA, Small 
Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 
64106; telephone: (816) 329-4138; fax: (816) 329-4090; email: 
taylor.martin@faa.gov. Before using any approved AMOC on any 
airplane to which the AMOC applies, notify your appropriate 
principal inspector (PI) in the FAA Flight Standards District Office 
(FSDO), or lacking a PI, your local FSDO.
    (2) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they are approved by the State of Design Authority 
(or their delegated agent). You are required to assure the product 
is airworthy before it is returned to service.

(h) Related Information

    Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 
2015-0061, dated April 20, 2015; and British Aerospace Jetstream 
Series 3100 & 3200 Service Bulletin 57-JA120141, Original Issue, 
dated: July 31, 2012, for related information. You may examine the 
MCAI on the Internet at https://www.regulations.gov by searching for 
and locating Docket No. FAA-2015-2048. For service information 
related to this AD, contact BAE Systems (Operations) Limited, 
Customer Information Department, Prestwick International Airport, 
Ayrshire, KA9 2RW, Scotland, United Kingdom; telephone: +44 1292 
675207; fax: +44 1292 675704; email: RApublications@baesystems.com; 
Internet: https://www.baesystems.com/Businesses/RegionalAircraft/. 
You may review this referenced service information at the FAA, Small 
Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For 
information on the availability of this material at the FAA, call 
(816) 329-4148.

    Issued in Kansas City, Missouri, on June 1, 2015.
Earl Lawrence,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2015-13918 Filed 6-8-15; 8:45 am]
 BILLING CODE 4910-13-P

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