Airworthiness Directives; British Aerospace Regional Aircraft Airplanes, 24465-24468 [2017-10408]
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Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Rules and Regulations
changes. This paragraph provides credit for
the actions specified in the introductory text
to paragraph (g) of this AD, if those actions
were performed before May 22, 2017 (the
effective date of AD 2017–08–07), using
Learjet 60 Service Bulletin 60–53–19, dated
November 23, 2015; Learjet 60 Service
Bulletin 60–53–19, Revision 1, dated April 4,
2016; or Learjet 60 Service Bulletin 60–53–
19, Revision 2, dated April 18, 2016.
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(k) Paperwork Reduction Act Burden
Statement
A federal agency may not conduct or
sponsor, and a person is not required to
respond to, nor shall a person be subject to
a penalty for failure to comply with a
collection of information subject to the
requirements of the Paperwork Reduction
Act unless that collection of information
displays a current valid OMB Control
Number. The OMB Control Number for this
information collection is 2120–0056. Public
reporting for this collection of information is
estimated to be approximately 5 minutes per
response, including the time for reviewing
instructions, completing and reviewing the
collection of information. All responses to
this collection of information are mandatory.
Comments concerning the accuracy of this
burden and suggestions for reducing the
burden should be directed to the FAA at: 800
Independence Ave. SW., Washington, DC
20591, Attn: Information Collection
Clearance Officer, AES–200.
(l) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Wichita ACO, FAA, has
the authority to approve AMOCs for this AD,
if requested using the procedures found in 14
CFR 39.19. In accordance with 14 CFR 39.19,
send your request to your principal inspector
or local Flight Standards District Office, as
appropriate. If sending information directly
to the manager of the ACO, send it to the
attention of the person identified in
paragraph (m)(1) of this AD.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(3) An AMOC that provides an acceptable
level of safety may be used for any repair,
modification, or alteration required by this
AD if it is approved by a Learjet, Inc.,
Designated Engineering Representative
(DER), or a Unit Member (UM) of the Learjet
Organization Designation Authorization
(ODA), that has been authorized by the
Manager, Wichita ACO, to make those
findings. To be approved, the repair,
modification deviation, or alteration
deviation must meet the certification basis of
the airplane, and the approval must
specifically refer to this AD.
(4) AMOCs approved previously for AD
2017–08–07 are approved as AMOCs for the
corresponding provisions of this AD.
(m) Related Information
(1) For more information about this AD,
contact Paul Chapman, Aerospace Engineer,
Airframe Branch, ACE–118W, FAA, Wichita
ACO, 1801 Airport Road, Room 100, Dwight
D. Eisenhower Airport, Wichita, KS 67209;
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phone: 316–946–4152; fax: 316–946–4107;
email: Wichita-COS@faa.gov.
(2) Service information identified in this
AD that is not incorporated by reference is
available at the addresses specified in
paragraphs (n)(4) and (n)(5) of this AD.
(n) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless the AD specifies otherwise.
(3) The following service information was
approved for IBR on May 22, 2017 (82 FR
18084, April 17, 2017).
(i) Learjet 60 Service Bulletin 60–53–19,
Revision 3, dated August 29, 2016.
(ii) Reserved.
(4) For Learjet, Inc., service information
identified in this AD, contact Learjet, Inc.,
One Learjet Way, Wichita, KS 67209–2942;
telephone: 316–946–2000; fax: 316–946–
2220; email: ac.ict@aero.bombardier.com;
Internet: https://www.bombardier.com.
(5) 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.
(6) You may view this service information
that is incorporated by reference at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA, call
202–741–6030, or go to: https://
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued in Renton, Washington, on May 18,
2017.
Michael Kaszycki,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2017–10786 Filed 5–26–17; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2017–0053; Directorate
Identifier 2016–CE–037–AD; Amendment
39–18888; AD 2017–10–14]
RIN 2120–AA64
Airworthiness Directives; British
Aerospace Regional Aircraft Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
We are superseding
Airworthiness Directive (AD) 2014–07–
07 for British Aerospace Regional
Aircraft Model HP 137 Jetstream MK1,
SUMMARY:
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Jetstream Series 200, and Jetstream
Series 3101 airplanes. This AD results
from mandatory continuing
airworthiness information (MCAI)
issued 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 cracking of the forward
main landing gear yoke pintle resulting
from corrosion pits leading to stress
corrosion cracking. We are issuing this
AD to require actions to address the
unsafe condition on these products.
DATES: This AD is effective July 5, 2017.
The Director of the Federal Register
approved the incorporation by reference
of a certain publications listed in the AD
as of July 5, 2017.
ADDRESSES: You may examine the AD
docket on the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2017–
0053; or in person at the Docket
Management Facility, U.S. Department
of Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue SE., Washington, DC 20590.
For service information identified in
this AD, BAE Systems (Operations) Ltd,
Customer Information Department,
Prestwick International Airport,
Ayrshire, KA9 2RW, Scotland, United
Kingdom; phone: +44 1292 675207; fax:
+44 1292 675704; email:
RApublications@baesystems.com;
Internet: https://
www.jetstreamcentral.com. You may
view 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. It is also available
on the Internet at https://
www.regulations.gov by searching for
Docket No. FAA–2017–0053.
FOR FURTHER INFORMATION CONTACT:
Doug Rudolph, Aerospace Engineer,
FAA, Small Airplane Directorate, 901
Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329–
4059; fax: (816) 329–4090; email:
doug.rudolph@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to British Aerospace Regional
Aircraft Model HP 137 Jetstream MK1,
Jetstream Series 200, and Jetstream
Series 3101 airplanes. That NPRM was
published in the Federal Register on
February 17, 2017 (82 FR 10973), and
proposed to supersede AD 2014–07–07,
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Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Rules and Regulations
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Amendment 39–17821 (79 FR 23897;
April 29, 2014) (‘‘2014–07–07’’).
The NPRM proposed to correct an
unsafe condition for the specified
products and was based on mandatory
continuing airworthiness information
(MCAI) originated by an aviation
authority of another country. The MCAI
states that:
For the reasons described above, this
[EASA] AD retains the requirements of EASA
AD 2013–0208, which is superseded, and
requires MLG inspections in accordance with
the improved procedure.
Prompted by occurrences of the main
landing gear (MLG) yoke pintle housing
cracking, the Civil Aviation Authority (CAA)
UK issued AD 003–01–86 to require
repetitive inspections to detect cracks in the
yoke pintle housing on MLG fitted to
Jetstream 3100 aeroplanes in accordance with
BAE Systems (Operations) Ltd Service
Bulletin (SB) 32–A–JA851226, and,
depending on findings, corrective action.
After that AD was issued, an occurrence was
reported of Jetstream 3100 MLG failure after
landing. The subsequent investigation
revealed stress corrosion cracking of the MLG
yoke pintle housing to have caused this MLG
failure. Furthermore, the investigation report
recommended a review of the effectiveness of
CAA UK AD 003–01–86 in finding cracks in
the yoke pintle housing on MLG fitted to
Jetstream 3100 aeroplanes.
Degradation of the surface protection by
abrasion can occur when the forward face of
the yoke pintle rotates against the pintle
bearing, which introduces corrosion pits and,
consequently, stress corrosion cracking.
This condition, if not detected and
corrected, could lead to structural failure of
the MLG, possibly resulting in loss of control
of the aeroplane during take-off or landing
runs.
To provide protection of the affected area
of the MLG assembly spigot housing, BAE
Systems (Operations) Ltd issued SB 32–
JM7862 to provide instructions for
installation of a protective washer, fitted at
the forward spigot on both left hand and right
hand MLG. Consequently, BAE Systems
(Operations) Ltd issued SB 32–A–JA851226
Revision 05 to provide additional
accomplishment instructions for a Nondestructive testing (NDT) inspection of MLG
equipped with the protective washer
installed in accordance with BAE Systems
(Operations) Ltd SB 32–JM7862.
Consequently, EASA issued AD 2013–
0208, retaining the requirements of CAA UK
AD 003–01–86, which was superseded, and
required implementation of revised
inspection requirements, and, depending on
findings, accomplishment of applicable
corrective action(s). That AD also introduced
an optional modification, which constituted
terminating action for the inspections
required by that AD.
Since that AD was issued, BAE Systems
(Operations) Ltd has determined that the
existing inspection procedure may not be
effective in identifying stress corrosion
cracking in the pintle housing. Consequently
BAE Systems (Operations) Ltd has published
an improved inspection procedure in SB 32–
A–JA851226 Revision 07. This improved
inspection procedure has the ability to detect
smaller corrosion pits and cracks that are
proximate in size to those that will initiate
stress corrosion.
Comments
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The MCAI can be found in the AD
docket on the Internet at: https://
www.regulations.gov/
document?D=FAA-2017-0053-0002.
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM or
on the determination of the cost to the
public.
Conclusion
We reviewed the relevant data and
determined that air safety and the
public interest require adopting the AD
as proposed except for minor editorial
changes. We have determined that these
minor changes:
• Are consistent with the intent that
was proposed in the NPRM for
correcting the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM.
Related Service Information
We reviewed British Aerospace
Jetstream Series 3100 & 3200 Service
Bulletin 32–A–JA851226, Revision 7,
dated May 25, 2015. The service
information describes procedures for
nondestructive testing (NDT) and visual
inspections of the main landing gear
spigot housing for cracks and repair if
necessary. 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 the final rule.
Costs of Compliance
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 AD will not
have federalism implications under
Executive Order 13132. This AD will
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 AD:
(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.
Examining the AD Docket
We estimate that this AD will affect
26 products of U.S. registry. We also
estimate that it would take about 14
work-hours per product to comply with
the basic requirements of this AD. The
average labor rate is $85 per work-hour.
Based on these figures, we estimate
this cost of the AD on U.S. operators to
be $30,940, or $1,190 per product.
In addition, we estimate that any
necessary follow-on actions would take
about 2 work-hours and require parts
costing $5,000, for a cost of $5,170 per
product. We have no way of
determining the number of products
that may need these actions.
You may examine the AD docket on
the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2017–
0053; 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 the NPRM, 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.
Authority for This Rulemaking
List of Subjects in 14 CFR Part 39
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
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Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Rules and Regulations
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 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
removing Amendment 39–17821 (82 FR
23897; April 29, 2014), and adding the
following new AD:
■
2017–10–14 British Aerospace Regional
Aircraft: Amendment 39–18888; Docket
No. FAA–2017–0053; Directorate
Identifier 2016–CE–037–AD.
(a) Effective Date
This airworthiness directive (AD) becomes
effective July 5, 2017.
(b) Affected ADs
This AD supersedes AD 2014–07–07,
Amendment 39–17821 (79 FR 23897, April
29, 2014) (‘‘2014–07–07’’).
(c) Applicability
This AD applies to British Aerospace
(Operations) Limited Model HP.137 Jetstream
Mk.1, Jetstream Series 200, and Jetstream
Series 3101 airplanes, all serial numbers,
certificated in any category.
(d) Subject
Air Transport Association of America
(ATA) Code 32: Landing Gear.
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(e) Reason
This AD was prompted by mandatory
continuing airworthiness information (MCAI)
issued 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 cracking of
the forward main landing gear yoke pintle
resulting from corrosion pits which can cause
stress corrosion cracking resulting in loss of
control during take-off or landing. We are
issuing this AD to revise the inspection
procedure to detect smaller corrosion pits
and cracks that could initiate stress corrosion
cracking.
(f) Actions and Compliance
Unless already done, do the following
actions specified in paragraphs (f)(1) through
(11) of this AD:
(1) For all airplanes: Before or at the next
inspection that would have been required by
AD 2014–07–07 or within the next 30 days
after July 5, 2017 (the effective date of this
AD), whichever occurs later, and repetitively
thereafter at intervals not to exceed 12
months or 1,200 main landing gear (MLG)
flight cycles (FC), whichever occurs first, do
a nondestructive testing (NDT) inspection of
each MLG assembly cylinder attachment
spigot housing following the accomplishment
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instructions in Heroux Devtek Service
Bulletin (SB) 32–19, Revision 7, dated March
16, 2015, as specified in the accomplishment
instructions in paragraph 2.B. Part A of
British Aerospace Jetstream Series 3100 &
3200 SB 32–A–JA851226, Revision 7, dated
May 25, 2015.
(2) For all airplanes: Within 300 landings
after a heavy or abnormal landing or within
3 months after a heavy or abnormal landing,
whichever occurs first, do an NDT inspection
of each MLG assembly cylinder attachment
spigot housing following the accomplishment
instructions in Heroux Devtek Service
Bulletin (SB) 32–19, Revision 7, dated March
16, 2015, as specified in the accomplishment
instructions in paragraph 2.B. Part A of
British Aerospace Jetstream Series 3100 &
3200 SB 32–A–JA851226, Revision 7, dated
May 25, 2015.
(3) For all airplanes: Within 3 months after
accomplishment of the latest NDT inspection
required by paragraph (f)(1) of this AD or 300
MLG FC after accomplishment of the latest
NDT inspection required by paragraph (f)(1)
of this AD, whichever occurs first, and
repetitively thereafter at intervals not to
exceed 3 months or within 300 MLG FC,
whichever occurs first, do a visual inspection
of each MLG following the accomplishment
instructions in paragraph 2.B. Part B of
British Aerospace Jetstream Series 3100 &
3200 SB 32–A–JA851226, Revision 7, dated
May 25, 2015. These inspections start over
after every repetitive NDT inspection
required by paragraph (f)(1)of this AD.
(4) For all airplanes with a MLG
incorporating a microswitch hole: Within the
next 10,600 MLG FC since new and
repetitively thereafter at intervals not to
exceed 1,200 MLG flight cycles, do an NDT
inspection of each MLG microswitch hole
following the accomplishment instructions in
paragraph 2.B. Part C of British Aerospace
Jetstream Series 3100 & 3200 SB 32–A–
JA851226, Revision 7, dated May 25, 2015.
(5) For all airplanes: If any discrepancy is
found during any NDT inspection required in
paragraphs (f)(1), (2), or (4) of this AD, before
further flight, take all necessary corrective
actions following the instructions in British
Aerospace Jetstream Series 3100 & 3200 SB
32–A–JA851226, Revision 7, dated May 25,
2015.
(6) For all airplanes: If any discrepancy is
found during any visual inspection required
in paragraph (f)(3) of this AD, before further
flight, take all necessary corrective actions
following the instructions in British
Aerospace Jetstream Series 3100 & 3200 SB
32–A–JA851226, Revision 7, dated May 25,
2015.
(7) For all airplanes: Doing all necessary
corrective actions required in paragraphs
(f)(5) or (6) of this AD does not constitute
terminating action for the inspections
required by this AD.
(8) For all airplanes: Modification of each
MLG cylinder following BAE Systems
(Operations) Ltd. SB 32–JA880340 original
issue, dated January 6, 1989, constitutes
terminating action for the inspections
required by this AD for that MLG.
(9) For all airplanes: The compliance times
in paragraphs (f)(1), (2), (3), and (4) of this
AD are presented in flight cycles (landings).
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If the total flight cycles have not been kept,
multiply the total number of airplane hours
time-in-service (TIS) by 0.75 to calculate the
cycles. For the purposes of this AD:
(i) 100 hours TIS × .75 = 75 cycles; and
(ii) 1,000 hours TIS × .75 = 750 cycles.
(g) Credit for Actions Done in Accordance
With Previous Service Information
(1) This AD allows credit for the initial
inspection required in paragraph (f)(1) of this
AD if done before June 3, 2014 (the effective
date retained from AD 2014–07–07)
following British Aerospace Jetstream Series
3100 & 3200 Service Bulletin 32–A–
JA851226, Revision 5, dated April 30, 2013.
(2) This AD allows credit for the initial
inspection required in paragraph (f)(4) of this
AD if done before June 3, 2014 (the effective
date retained from AD 2014–07–07)
following APPH Ltd. Service Bulletin 32–40,
at Initial Issue dated June 21, 1989; or APPH
Ltd. Service Bulletin 32–40, Revision 1,
dated February, 2003.
(h) 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: Doug Rudolph, Aerospace Engineer,
FAA, Small Airplane Directorate, 901 Locust,
Room 301, Kansas City, Missouri 64106;
telephone: (816) 329–4059; fax: (816) 329–
4090; email: doug.rudolph@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.
(3) Reporting Requirements: For any
reporting requirement in this AD, a federal
agency may not conduct or sponsor, and a
person is not required to respond to, nor
shall a person be subject to a penalty for
failure to comply with a collection of
information subject to the requirements of
the Paperwork Reduction Act unless that
collection of information displays a current
valid OMB Control Number. The OMB
Control Number for this information
collection is 2120–0056. Public reporting for
this collection of information is estimated to
be approximately 5 minutes per response,
including the time for reviewing instructions,
completing and reviewing the collection of
information. All responses to this collection
of information are mandatory. Comments
concerning the accuracy of this burden and
suggestions for reducing the burden should
be directed to the FAA at: 800 Independence
Ave. SW., Washington, DC 20591, Attn:
Information Collection Clearance Officer,
AES–200.
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Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Rules and Regulations
(i) Related Information
Refer to MCAI European Aviation Safety
Agency (EASA) AD No.: 2016–0224, dated
November 9, 2016, for related information.
The MCAI can be found in the AD docket on
the Internet at: https://www.regulations.gov/
document?D=FAA-2017-0053-0002.
(j) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless the AD specifies otherwise.
(i) British Aerospace Jetstream Series 3100
& 3200 Service Bulletin 32–A–JA851226,
Revision 7, dated May 25, 2015.
(ii) Heroux Devtek Service Bulletin 32–19,
Revision 7, dated March 16, 2015.
(3) For British Aerospace Regional Aircraft
service information identified in this AD,
contact BAE Systems (Operations) Ltd,
Customer Information Department, Prestwick
International Airport, Ayrshire, KA9 2RW,
Scotland, United Kingdom; phone: +44 1292
675207, fax: +44 1292 675704; email:
RApublications@baesystems.com; Internet:
https://www.jetstreamcentral.com.
(4) You may review copies of the
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. In addition, you
can access this service information on the
Internet at https://www.regulations.gov by
searching for and locating Docket No. FAA–
2017–0053.
(5) You may view this service information
that is incorporated by reference at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA, call
202–741–6030, or go to: https://
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued in Kansas City, Missouri, on May
10, 2017.
Melvin Johnson,
Acting Manager, Small Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2017–10408 Filed 5–26–17; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
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14 CFR Part 39
[Docket No. FAA–2016–6667; Directorate
Identifier 2015–NM–125–AD; Amendment
39–18882; AD 2017–10–08]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
AGENCY:
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ACTION:
Final rule.
We are superseding
Airworthiness Directive (AD) 2009–21–
01 for certain The Boeing Company
Model 737–300 and 737–400 series
airplanes. AD 2009–21–01 required
repetitive inspections to detect cracking
of the aft fuselage skin, and related
investigative and corrective actions if
necessary. This new AD adds certain
inspections, repairs, replacement,
related investigative and corrective
actions if necessary; and removes
certain airplanes from the applicability.
This AD was prompted by an evaluation
by the design approval holder (DAH)
indicating that the aft fuselage skin is
subject to widespread fatigue damage
(WFD), and by reports of aft fuselage
cracking. We are issuing this AD to
address the unsafe condition on these
products.
SUMMARY:
Engineer, Airframe Branch, ANM–120L,
FAA, Los Angeles Aircraft Certification
Office (ACO), 3960 Paramount
Boulevard, Lakewood, CA 90712–4137;
phone: 562–627–5264; fax: 562–627–
5210; email:
jennifer.tsakoumakis@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
This AD is effective July 5, 2017.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of July 5, 2017.
ADDRESSES: For service information
identified in this final rule, contact
Boeing Commercial Airplanes,
Attention: Contractual & Data Services
(C&DS), 2600 Westminster Blvd., MC
110–SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; Internet
https://www.myboeingfleet.com. You
may view this referenced service
information at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue
SW., Renton, WA. For information on
the availability of this material at the
FAA, call 425–227–1221. It is also
available on the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2016–
6667.
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2009–21–01,
Amendment 39–16038 (74 FR 52395,
October 13, 2009) (‘‘AD 2009–21–01’’).
AD 2009–21–01 applied to certain the
Boeing Company Model 737–300 and
737–400 series airplanes. The NPRM
published in the Federal Register on
May 13, 2016 (81 FR 29802). The NPRM
was prompted by an evaluation by the
DAH indicating that the aft fuselage skin
is subject to WFD, and by reports of aft
fuselage cracking. The NPRM proposed
to continue to require repetitive
inspections to detect cracking of the aft
fuselage skin, and related investigative
and corrective actions if necessary. The
NPRM also proposed to add new aft
fuselage skin inspections for cracking,
inspections to detect missing or loose
fasteners and any disbonding or
cracking of bonded doublers, permanent
repairs of time-limited repairs, related
investigative and corrective actions if
necessary, and skin panel replacement.
The NPRM also proposed to remove
Model 737–400 series airplanes from the
applicability. We are issuing this AD to
detect and correct cracking in the aft
fuselage skin along the longitudinal
edges of the chem-milled pockets in the
bonded skin doubler, which could
result in possible rapid decompression
and reduced structural integrity of the
airplane.
Examining the AD Docket
Comments
You may examine the AD docket on
the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2016–
6667; 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 AD, the regulatory
evaluation, any comments received, and
other information. The address for the
Docket Office (phone: 800–647–5527) is
Docket Management Facility, U.S.
Department of Transportation, Docket
Operations, M–30, West Building
Ground Floor, Room W12–140, 1200
New Jersey Avenue SE., Washington,
DC 20590.
FOR FURTHER INFORMATION CONTACT:
Jennifer Tsakoumakis, Aerospace
We gave the public the opportunity to
participate in developing this AD. The
following presents the comments
received on the NPRM and the FAA’s
response to each comment.
DATES:
PO 00000
Frm 00014
Fmt 4700
Sfmt 4700
Request To Revise the Precipitating
Event Statement
Boeing requested that we revise the
precipitating event statement by
including that there have been reports of
aft fuselage cracking. Boeing stated that
this revision would be consistent with
wording of other related rulemaking.
We agree with Boeing’s request
because it provides additional clarity to
the precipitating event statement. We
have revised the SUMMARY and
Discussion sections, and paragraph (e)
of this AD accordingly.
E:\FR\FM\30MYR1.SGM
30MYR1
]]>Agencies
[Federal Register Volume 82, Number 102 (Tuesday, May 30, 2017)]
[Rules and Regulations]
[Pages 24465-24468]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-10408]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-0053; Directorate Identifier 2016-CE-037-AD;
Amendment 39-18888; AD 2017-10-14]
RIN 2120-AA64
Airworthiness Directives; British Aerospace Regional Aircraft
Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are superseding Airworthiness Directive (AD) 2014-07-07 for
British Aerospace Regional Aircraft Model HP 137 Jetstream MK1,
Jetstream Series 200, and Jetstream Series 3101 airplanes. This AD
results from mandatory continuing airworthiness information (MCAI)
issued 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 cracking of the forward main landing gear yoke
pintle resulting from corrosion pits leading to stress corrosion
cracking. We are issuing this AD to require actions to address the
unsafe condition on these products.
DATES: This AD is effective July 5, 2017.
The Director of the Federal Register approved the incorporation by
reference of a certain publications listed in the AD as of July 5,
2017.
ADDRESSES: You may examine the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0053; or in person at the Docket Management Facility, U.S. Department
of Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590.
For service information identified in this AD, BAE Systems
(Operations) Ltd, Customer Information Department, Prestwick
International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom;
phone: +44 1292 675207; fax: +44 1292 675704; email:
RApublications@baesystems.com; Internet: https://www.jetstreamcentral.com. You may view 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. It is also available on the
Internet at https://www.regulations.gov by searching for Docket No. FAA-
2017-0053.
FOR FURTHER INFORMATION CONTACT: Doug Rudolph, Aerospace Engineer, FAA,
Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329-4059; fax: (816) 329-4090; email:
doug.rudolph@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to British Aerospace Regional
Aircraft Model HP 137 Jetstream MK1, Jetstream Series 200, and
Jetstream Series 3101 airplanes. That NPRM was published in the Federal
Register on February 17, 2017 (82 FR 10973), and proposed to supersede
AD 2014-07-07,
[[Page 24466]]
Amendment 39-17821 (79 FR 23897; April 29, 2014) (``2014-07-07'').
The NPRM proposed to correct an unsafe condition for the specified
products and was based on mandatory continuing airworthiness
information (MCAI) originated by an aviation authority of another
country. The MCAI states that:
Prompted by occurrences of the main landing gear (MLG) yoke
pintle housing cracking, the Civil Aviation Authority (CAA) UK
issued AD 003-01-86 to require repetitive inspections to detect
cracks in the yoke pintle housing on MLG fitted to Jetstream 3100
aeroplanes in accordance with BAE Systems (Operations) Ltd Service
Bulletin (SB) 32-A-JA851226, and, depending on findings, corrective
action. After that AD was issued, an occurrence was reported of
Jetstream 3100 MLG failure after landing. The subsequent
investigation revealed stress corrosion cracking of the MLG yoke
pintle housing to have caused this MLG failure. Furthermore, the
investigation report recommended a review of the effectiveness of
CAA UK AD 003-01-86 in finding cracks in the yoke pintle housing on
MLG fitted to Jetstream 3100 aeroplanes.
Degradation of the surface protection by abrasion can occur when
the forward face of the yoke pintle rotates against the pintle
bearing, which introduces corrosion pits and, consequently, stress
corrosion cracking.
This condition, if not detected and corrected, could lead to
structural failure of the MLG, possibly resulting in loss of control
of the aeroplane during take-off or landing runs.
To provide protection of the affected area of the MLG assembly
spigot housing, BAE Systems (Operations) Ltd issued SB 32-JM7862 to
provide instructions for installation of a protective washer, fitted
at the forward spigot on both left hand and right hand MLG.
Consequently, BAE Systems (Operations) Ltd issued SB 32-A-JA851226
Revision 05 to provide additional accomplishment instructions for a
Non-destructive testing (NDT) inspection of MLG equipped with the
protective washer installed in accordance with BAE Systems
(Operations) Ltd SB 32-JM7862.
Consequently, EASA issued AD 2013-0208, retaining the
requirements of CAA UK AD 003-01-86, which was superseded, and
required implementation of revised inspection requirements, and,
depending on findings, accomplishment of applicable corrective
action(s). That AD also introduced an optional modification, which
constituted terminating action for the inspections required by that
AD.
Since that AD was issued, BAE Systems (Operations) Ltd has
determined that the existing inspection procedure may not be
effective in identifying stress corrosion cracking in the pintle
housing. Consequently BAE Systems (Operations) Ltd has published an
improved inspection procedure in SB 32-A-JA851226 Revision 07. This
improved inspection procedure has the ability to detect smaller
corrosion pits and cracks that are proximate in size to those that
will initiate stress corrosion.
For the reasons described above, this [EASA] AD retains the
requirements of EASA AD 2013-0208, which is superseded, and requires
MLG inspections in accordance with the improved procedure.
The MCAI can be found in the AD docket on the Internet at: https://www.regulations.gov/document?D=FAA-2017-0053-0002.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or on the determination of
the cost to the public.
Conclusion
We reviewed the relevant data and determined that air safety and
the public interest require adopting the AD as proposed except for
minor editorial changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for correcting the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related Service Information
We reviewed British Aerospace Jetstream Series 3100 & 3200 Service
Bulletin 32-A-JA851226, Revision 7, dated May 25, 2015. The service
information describes procedures for nondestructive testing (NDT) and
visual inspections of the main landing gear spigot housing for cracks
and repair if necessary. 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 the final rule.
Costs of Compliance
We estimate that this AD will affect 26 products of U.S. registry.
We also estimate that it would take about 14 work-hours per product to
comply with the basic requirements of this AD. The average labor rate
is $85 per work-hour.
Based on these figures, we estimate this cost of the AD on U.S.
operators to be $30,940, or $1,190 per product.
In addition, we estimate that any necessary follow-on actions would
take about 2 work-hours and require parts costing $5,000, for a cost of
$5,170 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 AD will not have federalism implications
under Executive Order 13132. This AD will 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 AD:
(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.
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-2017-
0053; 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 the NPRM, 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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
[[Page 24467]]
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 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 Amendment 39-17821 (82 FR
23897; April 29, 2014), and adding the following new AD:
2017-10-14 British Aerospace Regional Aircraft: Amendment 39-18888;
Docket No. FAA-2017-0053; Directorate Identifier 2016-CE-037-AD.
(a) Effective Date
This airworthiness directive (AD) becomes effective July 5,
2017.
(b) Affected ADs
This AD supersedes AD 2014-07-07, Amendment 39-17821 (79 FR
23897, April 29, 2014) (``2014-07-07'').
(c) Applicability
This AD applies to British Aerospace (Operations) Limited Model
HP.137 Jetstream Mk.1, Jetstream Series 200, and Jetstream Series
3101 airplanes, all serial numbers, certificated in any category.
(d) Subject
Air Transport Association of America (ATA) Code 32: Landing
Gear.
(e) Reason
This AD was prompted by mandatory continuing airworthiness
information (MCAI) issued 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 cracking of the
forward main landing gear yoke pintle resulting from corrosion pits
which can cause stress corrosion cracking resulting in loss of
control during take-off or landing. We are issuing this AD to revise
the inspection procedure to detect smaller corrosion pits and cracks
that could initiate stress corrosion cracking.
(f) Actions and Compliance
Unless already done, do the following actions specified in
paragraphs (f)(1) through (11) of this AD:
(1) For all airplanes: Before or at the next inspection that
would have been required by AD 2014-07-07 or within the next 30 days
after July 5, 2017 (the effective date of this AD), whichever occurs
later, and repetitively thereafter at intervals not to exceed 12
months or 1,200 main landing gear (MLG) flight cycles (FC),
whichever occurs first, do a nondestructive testing (NDT) inspection
of each MLG assembly cylinder attachment spigot housing following
the accomplishment instructions in Heroux Devtek Service Bulletin
(SB) 32-19, Revision 7, dated March 16, 2015, as specified in the
accomplishment instructions in paragraph 2.B. Part A of British
Aerospace Jetstream Series 3100 & 3200 SB 32-A-JA851226, Revision 7,
dated May 25, 2015.
(2) For all airplanes: Within 300 landings after a heavy or
abnormal landing or within 3 months after a heavy or abnormal
landing, whichever occurs first, do an NDT inspection of each MLG
assembly cylinder attachment spigot housing following the
accomplishment instructions in Heroux Devtek Service Bulletin (SB)
32-19, Revision 7, dated March 16, 2015, as specified in the
accomplishment instructions in paragraph 2.B. Part A of British
Aerospace Jetstream Series 3100 & 3200 SB 32-A-JA851226, Revision 7,
dated May 25, 2015.
(3) For all airplanes: Within 3 months after accomplishment of
the latest NDT inspection required by paragraph (f)(1) of this AD or
300 MLG FC after accomplishment of the latest NDT inspection
required by paragraph (f)(1) of this AD, whichever occurs first, and
repetitively thereafter at intervals not to exceed 3 months or
within 300 MLG FC, whichever occurs first, do a visual inspection of
each MLG following the accomplishment instructions in paragraph 2.B.
Part B of British Aerospace Jetstream Series 3100 & 3200 SB 32-A-
JA851226, Revision 7, dated May 25, 2015. These inspections start
over after every repetitive NDT inspection required by paragraph
(f)(1)of this AD.
(4) For all airplanes with a MLG incorporating a microswitch
hole: Within the next 10,600 MLG FC since new and repetitively
thereafter at intervals not to exceed 1,200 MLG flight cycles, do an
NDT inspection of each MLG microswitch hole following the
accomplishment instructions in paragraph 2.B. Part C of British
Aerospace Jetstream Series 3100 & 3200 SB 32-A-JA851226, Revision 7,
dated May 25, 2015.
(5) For all airplanes: If any discrepancy is found during any
NDT inspection required in paragraphs (f)(1), (2), or (4) of this
AD, before further flight, take all necessary corrective actions
following the instructions in British Aerospace Jetstream Series
3100 & 3200 SB 32-A-JA851226, Revision 7, dated May 25, 2015.
(6) For all airplanes: If any discrepancy is found during any
visual inspection required in paragraph (f)(3) of this AD, before
further flight, take all necessary corrective actions following the
instructions in British Aerospace Jetstream Series 3100 & 3200 SB
32-A-JA851226, Revision 7, dated May 25, 2015.
(7) For all airplanes: Doing all necessary corrective actions
required in paragraphs (f)(5) or (6) of this AD does not constitute
terminating action for the inspections required by this AD.
(8) For all airplanes: Modification of each MLG cylinder
following BAE Systems (Operations) Ltd. SB 32-JA880340 original
issue, dated January 6, 1989, constitutes terminating action for the
inspections required by this AD for that MLG.
(9) For all airplanes: The compliance times in paragraphs
(f)(1), (2), (3), and (4) of this AD are presented in flight cycles
(landings). If the total flight cycles have not been kept, multiply
the total number of airplane hours time-in-service (TIS) by 0.75 to
calculate the cycles. For the purposes of this AD:
(i) 100 hours TIS x .75 = 75 cycles; and
(ii) 1,000 hours TIS x .75 = 750 cycles.
(g) Credit for Actions Done in Accordance With Previous Service
Information
(1) This AD allows credit for the initial inspection required in
paragraph (f)(1) of this AD if done before June 3, 2014 (the
effective date retained from AD 2014-07-07) following British
Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32-A-
JA851226, Revision 5, dated April 30, 2013.
(2) This AD allows credit for the initial inspection required in
paragraph (f)(4) of this AD if done before June 3, 2014 (the
effective date retained from AD 2014-07-07) following APPH Ltd.
Service Bulletin 32-40, at Initial Issue dated June 21, 1989; or
APPH Ltd. Service Bulletin 32-40, Revision 1, dated February, 2003.
(h) 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: Doug Rudolph, Aerospace Engineer, FAA, Small
Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329-4059; fax: (816) 329-4090; email:
doug.rudolph@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.
(3) Reporting Requirements: For any reporting requirement in
this AD, a federal agency may not conduct or sponsor, and a person
is not required to respond to, nor shall a person be subject to a
penalty for failure to comply with a collection of information
subject to the requirements of the Paperwork Reduction Act unless
that collection of information displays a current valid OMB Control
Number. The OMB Control Number for this information collection is
2120-0056. Public reporting for this collection of information is
estimated to be approximately 5 minutes per response, including the
time for reviewing instructions, completing and reviewing the
collection of information. All responses to this collection of
information are mandatory. Comments concerning the accuracy of this
burden and suggestions for reducing the burden should be directed to
the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn:
Information Collection Clearance Officer, AES-200.
[[Page 24468]]
(i) Related Information
Refer to MCAI European Aviation Safety Agency (EASA) AD No.:
2016-0224, dated November 9, 2016, for related information. The MCAI
can be found in the AD docket on the Internet at: https://www.regulations.gov/document?D=FAA-2017-0053-0002.
(j) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) British Aerospace Jetstream Series 3100 & 3200 Service
Bulletin 32-A-JA851226, Revision 7, dated May 25, 2015.
(ii) Heroux Devtek Service Bulletin 32-19, Revision 7, dated
March 16, 2015.
(3) For British Aerospace Regional Aircraft service information
identified in this AD, contact BAE Systems (Operations) Ltd,
Customer Information Department, Prestwick International Airport,
Ayrshire, KA9 2RW, Scotland, United Kingdom; phone: +44 1292 675207,
fax: +44 1292 675704; email: RApublications@baesystems.com;
Internet: https://www.jetstreamcentral.com.
(4) You may review copies of the 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. In addition, you can access this
service information on the Internet at https://www.regulations.gov by
searching for and locating Docket No. FAA-2017-0053.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call 202-741-6030, or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Kansas City, Missouri, on May 10, 2017.
Melvin Johnson,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2017-10408 Filed 5-26-17; 8:45 am]
BILLING CODE 4910-13-P
