[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]
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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).
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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 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 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:
[email protected]; Internet: http://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 http://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:
[email protected].
[[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 http://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 http://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).
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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:
[email protected]. 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 http://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: [email protected];
Internet: http://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