Airworthiness Directives; APEX Aircraft Model CAP 10 B Airplanes, 21086-21087 [E7-7994]
Download as PDF
21086
Federal Register / Vol. 72, No. 82 / Monday, April 30, 2007 / Rules and Regulations
(2) To request a different method of
compliance or a different compliance time
for this AD, follow the procedures in 14 CFR
39.19. 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.
Material Incorporated by Reference
(m) You must use Boeing 737 Flight Crew
Operations Manual Bulletin No. TBC–67,
dated March 5, 2007, to perform the actions
that are required by this AD, unless the AD
specifies otherwise. The Director of the
Federal Register approved the incorporation
by reference of this document in accordance
with 5 U.S.C. 552(a) and 1 CFR part 51.
Contact Boeing Commercial Airplanes, P.O.
Box 3707, Seattle, Washington 98124–2207,
for a copy of this service information. You
may review copies at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue,
SW., Renton, Washington; or 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/federalregister/cfr/ibr-locations.html.
Issued in Renton, Washington, on April 18,
2007.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E7–7850 Filed 4–27–07; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2007–27342 Directorate
Identifier 2007–CE–014–AD; Amendment
39–15037; AD 2007–09–05]
RIN 2120–AA64
Airworthiness Directives; APEX
Aircraft Model CAP 10 B Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
pwalker on PROD1PC71 with RULES
AGENCY:
A CAP10B aircraft experienced a reduced
elevator deflection by about 13° due to an
incorrect routing of the Push To Talk (PTT)
wire bundle and improperly secured
16:27 Apr 27, 2007
Jkt 211001
We are issuing this AD to require
actions to correct the unsafe condition
on these products.
DATES: This AD becomes effective June
4, 2007.
On June 4, 2007 the Director of the
Federal Register approved the
incorporation by reference of certain
publications listed in this AD.
ADDRESSES: You may examine the AD
docket on the Internet at https://
dms.dot.gov or in person at the Docket
Management Facility, U.S. Department
of Transportation, 400 Seventh Street,
SW., Nassif Building, Room PL–401,
Washington, DC.
FOR FURTHER INFORMATION CONTACT:
Sarjapur Nagarajan, Aerospace Engineer,
FAA, Small Airplane Directorate, 901
Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329–
4145; fax: (816) 329–4090.
SUPPLEMENTARY INFORMATION:
Streamlined Issuance of AD
The FAA is implementing a new
process for streamlining the issuance of
ADs related to MCAI. The streamlined
process will allow us to adopt MCAI
safety requirements in a more efficient
manner and will reduce safety risks to
the public. This process continues to
follow all FAA AD issuance processes to
meet legal, economic, Administrative
Procedure Act, and Federal Register
requirements. We also continue to meet
our technical decisionmaking
responsibilities to identify and correct
unsafe conditions on U.S.-certificated
products.
This AD references the MCAI and
related service information that we
considered in forming the engineering
basis to correct the unsafe condition.
The AD contains text copied from the
MCAI and for this reason might not
follow our plain language principles.
Discussion
SUMMARY: We are adopting a new
airworthiness directive (AD) for the
products listed above. 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:
VerDate Aug<31>2005
connectors which impeded the complete and
free movement of the control stick.
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to the specified products. That
NPRM was published in the Federal
Register on March 9, 2007 (72 FR
10624). That NPRM proposed to correct
an unsafe condition for the specified
products. The MCAI states:
A CAP10B aircraft experienced a reduced
elevator deflection by about 13° due to an
incorrect routing of the Push To Talk (PTT)
wire bundle and improperly secured
connectors which impeded the complete and
free movement of the control stick.
Actions specified in this AD are intended
to inspect, detect and correct any
PO 00000
Frm 00010
Fmt 4700
Sfmt 4700
discrepancy on the PTT electrical circuit
connectors and wires that could lead to a
reduction of the control stick movements.
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 available data and
determined that air safety and the
public interest require adopting the AD
as proposed.
Differences Between This AD and the
MCAI or Service Information
We have reviewed the MCAI and
related service information and, in
general, agree with their substance. But
we might have found it necessary to use
different words from those in the MCAI
to ensure the AD is clear for U.S.
operators and is enforceable. In making
these changes, we do not intend to differ
substantively from the information
provided in the MCAI and related
service information.
We might also have required different
actions in this AD from those in the
MCAI in order to follow FAA policies.
Any such differences are highlighted in
a note within the AD.
Costs of Compliance
We estimate that this AD will affect
31 products of U.S. registry. We also
estimate that it will take about 1 workhour per product to comply with basic
requirements of this AD. The average
labor rate is $80 per work-hour. Based
on these figures, we estimate the cost of
this AD to the U.S. operators to be
$2,480 or $80 per product.
In addition, we estimate that any
necessary follow-on actions would take
about 3 work-hours and require parts
costing $90, for a cost of $330 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
E:\FR\FM\30APR1.SGM
30APR1
Federal Register / Vol. 72, No. 82 / Monday, April 30, 2007 / Rules and Regulations
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
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979); and
(3) 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.
We prepared a regulatory evaluation
of the estimated costs to comply with
this AD and placed it in the AD Docket.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://dms.dot.gov; 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–
5227) 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.
Adoption of the Amendment
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
I
2007–09–05 APEX Aircraft (Type
Certificate No. A36EU formerly held by
AVIONS MUDRY et CIE): Amendment
39–15037; Docket No. FAA–2007–27342;
Directorate Identifier 2007–CE–014–AD.
Effective Date
(a) This airworthiness directive (AD)
becomes effective June 4, 2007.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Model CAP 10 B
airplanes, serial numbers 001 through 282,
fitted with major change 000302 (woodcarbon wings), that are certificated in any
category.
Subject
(d) Air Transport Association of America
(ATA) Code 27: Flight Controls.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
A CAP10B aircraft experienced a reduced
elevator deflection by about 13° due to an
incorrect routing of the Push To Talk (PTT)
wire bundle and improperly secured
connectors which impeded the complete and
free movement of the control stick.
Actions specified in this AD are intended
to inspect, detect and correct any
discrepancy on the PTT electrical circuit
connectors and wires that could lead to a
reduction of the control stick movements.
Actions and Compliance
(f) Unless already done, do the following
actions:
(1) Within the next 50 hours time-inservice after June 4, 2007 (the effective date
of this AD), inspect the wire routing for the
proper location and attachment of the
connectors as detailed in the
accomplishment instructions of APEX
Aircraft Mandatory Service Bulletin No.
050605, dated October 17, 2006.
(2) Before further flight, if a defect or
discrepancy is found during the inspection in
paragraph (f)(1) of this AD, modify the wire
bundle and connectors routing as detailed in
the accomplishment instructions of APEX
Aircraft Mandatory Service Bulletin No.
050605, dated October 17, 2006.
FAA AD Differences
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
I
Note: This AD differs from the MCAI and/
or service information as follows: No
differences.
pwalker on PROD1PC71 with RULES
Other FAA AD Provisions
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
I
Authority: 49 U.S.C. 106(g), 40113, 44701.
VerDate Aug<31>2005
16:27 Apr 27, 2007
Jkt 211001
(g) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, Standards Staff,
FAA, ATTN: Sarjapur Nagarajan, Aerospace
Engineer, FAA, Small Airplane Directorate,
PO 00000
Frm 00011
Fmt 4700
Sfmt 4700
21087
901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329–4145; fax: (816)
329–4090, has the authority to approve
AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. 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, under the
provisions of the Paperwork Reduction Act
(44 U.S.C. 3501 et seq.), the Office of
Management and Budget (OMB) has
approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
Related Information
(h) Refer to MCAI European Aviation
Safety Agency AD No: 2007–0014, dated
January 12, 2007; and APEX Aircraft
Mandatory Service Bulletin No. 050605,
dated October 17, 2006, for related
information.
Material Incorporated by Reference
(i) You must use APEX Aircraft Mandatory
Service Bulletin No. 050605, dated October
17, 2006, to do the actions required by this
AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(2) For service information identified in
this AD, contact Apex Aircraft, Bureau de
´
Navigabilite, 1, route de Troyes, 21121
DAROIS—France; telephone: +33 380 35 65
10; fax +33 380 35 65 15; e-mail:
airworthiness@apex-aircraft.com; Internet:
https://www.apex-aircraft.com.
(3) You may review copies at the FAA,
Central Region, Office of the Regional
Counsel, 901 Locust, Room 506, Kansas City,
Missouri 64106; or 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 April
19, 2007.
Charles L. Smalley,
Acting Manager, Small Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E7–7994 Filed 4–27–07; 8:45 am]
BILLING CODE 4910–13–P
E:\FR\FM\30APR1.SGM
30APR1
Agencies
[Federal Register Volume 72, Number 82 (Monday, April 30, 2007)]
[Rules and Regulations]
[Pages 21086-21087]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-7994]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-27342 Directorate Identifier 2007-CE-014-AD;
Amendment 39-15037; AD 2007-09-05]
RIN 2120-AA64
Airworthiness Directives; APEX Aircraft Model CAP 10 B Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for the
products listed above. 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:
A CAP10B aircraft experienced a reduced elevator deflection by
about 13[deg] due to an incorrect routing of the Push To Talk (PTT)
wire bundle and improperly secured connectors which impeded the
complete and free movement of the control stick.
We are issuing this AD to require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective June 4, 2007.
On June 4, 2007 the Director of the Federal Register approved the
incorporation by reference of certain publications listed in this AD.
ADDRESSES: You may examine the AD docket on the Internet at https://
dms.dot.gov or in person at the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif Building,
Room PL-401, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Sarjapur Nagarajan, Aerospace
Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas
City, Missouri 64106; telephone: (816) 329-4145; fax: (816) 329-4090.
SUPPLEMENTARY INFORMATION:
Streamlined Issuance of AD
The FAA is implementing a new process for streamlining the issuance
of ADs related to MCAI. The streamlined process will allow us to adopt
MCAI safety requirements in a more efficient manner and will reduce
safety risks to the public. This process continues to follow all FAA AD
issuance processes to meet legal, economic, Administrative Procedure
Act, and Federal Register requirements. We also continue to meet our
technical decisionmaking responsibilities to identify and correct
unsafe conditions on U.S.-certificated products.
This AD references the MCAI and related service information that we
considered in forming the engineering basis to correct the unsafe
condition. The AD contains text copied from the MCAI and for this
reason might not follow our plain language principles.
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM was published in the Federal Register on March 9, 2007 (72 FR
10624). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
A CAP10B aircraft experienced a reduced elevator deflection by
about 13[deg] due to an incorrect routing of the Push To Talk (PTT)
wire bundle and improperly secured connectors which impeded the
complete and free movement of the control stick.
Actions specified in this AD are intended to inspect, detect and
correct any discrepancy on the PTT electrical circuit connectors and
wires that could lead to a reduction of the control stick movements.
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 available data and determined that air safety and
the public interest require adopting the AD as proposed.
Differences Between This AD and the MCAI or Service Information
We have reviewed the MCAI and related service information and, in
general, agree with their substance. But we might have found it
necessary to use different words from those in the MCAI to ensure the
AD is clear for U.S. operators and is enforceable. In making these
changes, we do not intend to differ substantively from the information
provided in the MCAI and related service information.
We might also have required different actions in this AD from those
in the MCAI in order to follow FAA policies. Any such differences are
highlighted in a note within the AD.
Costs of Compliance
We estimate that this AD will affect 31 products of U.S. registry.
We also estimate that it will take about 1 work-hour per product to
comply with basic requirements of this AD. The average labor rate is
$80 per work-hour. Based on these figures, we estimate the cost of this
AD to the U.S. operators to be $2,480 or $80 per product.
In addition, we estimate that any necessary follow-on actions would
take about 3 work-hours and require parts costing $90, for a cost of
$330 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
[[Page 21087]]
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 DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979); and
(3) 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.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD Docket.
Examining the AD Docket
You may examine the AD docket on the Internet at https://
dms.dot.gov; 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) 647-5227) 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.
Adoption of the Amendment
0
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 adding the following new AD:
2007-09-05 APEX Aircraft (Type Certificate No. A36EU formerly held
by AVIONS MUDRY et CIE): Amendment 39-15037; Docket No. FAA-2007-
27342; Directorate Identifier 2007-CE-014-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective June 4,
2007.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Model CAP 10 B airplanes, serial numbers
001 through 282, fitted with major change 000302 (wood-carbon
wings), that are certificated in any category.
Subject
(d) Air Transport Association of America (ATA) Code 27: Flight
Controls.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
A CAP10B aircraft experienced a reduced elevator deflection by
about 13[deg] due to an incorrect routing of the Push To Talk (PTT)
wire bundle and improperly secured connectors which impeded the
complete and free movement of the control stick.
Actions specified in this AD are intended to inspect, detect and
correct any discrepancy on the PTT electrical circuit connectors and
wires that could lead to a reduction of the control stick movements.
Actions and Compliance
(f) Unless already done, do the following actions:
(1) Within the next 50 hours time-in-service after June 4, 2007
(the effective date of this AD), inspect the wire routing for the
proper location and attachment of the connectors as detailed in the
accomplishment instructions of APEX Aircraft Mandatory Service
Bulletin No. 050605, dated October 17, 2006.
(2) Before further flight, if a defect or discrepancy is found
during the inspection in paragraph (f)(1) of this AD, modify the
wire bundle and connectors routing as detailed in the accomplishment
instructions of APEX Aircraft Mandatory Service Bulletin No. 050605,
dated October 17, 2006.
FAA AD Differences
Note: This AD differs from the MCAI and/or service information
as follows: No differences.
Other FAA AD Provisions
(g) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
Standards Staff, FAA, ATTN: Sarjapur Nagarajan, Aerospace Engineer,
FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329-4145; fax: (816) 329-4090, has
the authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. 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, under the provisions of the Paperwork Reduction Act (44
U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has
approved the information collection requirements and has assigned
OMB Control Number 2120-0056.
Related Information
(h) Refer to MCAI European Aviation Safety Agency AD No: 2007-
0014, dated January 12, 2007; and APEX Aircraft Mandatory Service
Bulletin No. 050605, dated October 17, 2006, for related
information.
Material Incorporated by Reference
(i) You must use APEX Aircraft Mandatory Service Bulletin No.
050605, dated October 17, 2006, to do the actions required by this
AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact Apex
Aircraft, Bureau de Navigabilit[eacute], 1, route de Troyes, 21121
DAROIS--France; telephone: +33 380 35 65 10; fax +33 380 35 65 15;
e-mail: airworthiness@apex-aircraft.com; Internet: https://www.apex-
aircraft.com.
(3) You may review copies at the FAA, Central Region, Office of
the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri
64106; or 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 April 19, 2007.
Charles L. Smalley,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-7994 Filed 4-27-07; 8:45 am]
BILLING CODE 4910-13-P