
[Federal Register: February 25, 2010 (Volume 75, Number 37)]
[Rules and Regulations]               
[Page 8461-8465]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr25fe10-1]                         


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Rules and Regulations
                                                Federal Register
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[[Page 8461]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-1021; Directorate Identifier 2009-NM-054-AD; 
Amendment 39-16217; AD 2009-06-05 R1]
RIN 2120-AA64

 
Airworthiness Directives; Bombardier, Inc. Model CL-600-1A11 (CL-
600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and 
CL-604) Airplanes

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

ACTION: Final rule.

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

SUMMARY: We are revising an existing airworthiness directive (AD) for 
the products listed above. This 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:

    [S]everal cases of wing anti-ice piccolo duct failure reported 
on CL-600-2B19 (CRJ) aircraft. Although there have been no failures 
reported on Challenger aircraft, similar ducts are installed on the 
* * * [other] Challenger models.
* * * * *
    Cracking of the wing anti-ice piccolo ducts could result in air 
leakage, with an adverse effect on the anti-ice air distribution 
pattern and a possible unannunciated insufficient heat condition. * 
* *

    The unsafe condition is anti-ice system air leakage with a possible 
adverse effect on the anti-ice air distribution pattern and anti-ice 
capability without annunciation to the flightcrew, and consequent 
reduced controllability of the airplane. We are issuing this AD to 
require actions to correct the unsafe condition on these products.

DATES: This AD becomes effective April 1, 2010.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of April 1, 
2010.
    On April 28, 2009 (74 FR 12225, March 24, 2009), the Director of 
the Federal Register approved the incorporation by reference of certain 
other publications listed in this AD.

ADDRESSES: You may examine the AD docket on the Internet at http://
www.regulations.gov or in person at the U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.

FOR FURTHER INFORMATION CONTACT: Dan Parrillo, Aerospace Engineer, 
Airframe and Mechanical Systems, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New 
York 11590; telephone (516) 228-7305; fax (516) 794-5531.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to revise an existing AD that applies to certain Model CL-600-
1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-
601-3R, and CL-604) airplanes. That NPRM was published in the Federal 
Register on November 5, 2009 (74 FR 57273), and proposed to revise AD 
2009-06-05, Amendment 39-15841 (74 FR 12225, March 24, 2009). That AD 
required actions intended to address an unsafe condition for the 
products listed above.

Actions Since Issuance of AD 2009-06-05

    Since we issued AD 2009-06-05, Bombardier requested that we change 
paragraphs (f)(2) and (f)(4) of AD 2009-06-05 to allow compliance 
within 2,000 flight hours or 60 months after the effective date of the 
AD, whichever occurs first, instead of prior to the accumulation of 
2,000 total flight hours or within 60 months after the effective date 
of the AD, whichever occurs first. We agreed and proposed to revise 
paragraphs (f)(2) and (f)(4) of AD 2009-06-05 accordingly in the NPRM. 
The compliance time matches the intent of Transport Canada Civil 
Aviation (TCCA) AD CF-2008-18, dated May 9, 2008, and represents the 
maximum interval of time allowable for the affected airplanes to 
operate safely.
    Bombardier also requested that we change Table 2 of AD 2009-06-05 
to replace references to two temporary revisions (TRs): Canadair TR 
600/23, dated August 16, 2006, to the Canadair Challenger Model CL-600-
1A11 Airplane Flight Manual (AFM); and Canadair TR 600-1/19, dated 
August 16, 2006, to the Canadair Challenger Model CL-600-1A11 AFM 
(Winglets). These two TRs are approved by TCCA, and should be replaced 
in AD 2009-06-05 with references to the following FAA-approved TRs: 
Canadair TR 600/22, dated August 16, 2006, to the Canadair Challenger 
Model CL-600-1A11 AFM; and Canadair TR 600-1/17, dated August 16, 2006, 
to the Canadair Challenger Model CL-600-1A11 AFM (Winglets). We agreed 
and proposed to revise Table 2 of AD 2009-06-05 accordingly in the 
NPRM.

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.

Explanation of Change Made to the Manufacturer Name

    We have revised this AD to identify the legal name of the 
manufacturer as published in the most recent type certificate data 
sheet for the affected airplane models.

Explanation of Change to the Alternative Methods of Compliance

    We have revised the ``Alternative Methods of Compliance (AMOCs)'' 
paragraph (g)(1) in this AD to specify the current contact information.

Conclusion

    We reviewed the available data and determined that air safety and 
the public interest require adopting the AD with the changes described 
previously. We determined that these changes will not increase the 
economic burden on any operator or increase the scope of the AD.

[[Page 8462]]

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 our FAA policies. Any such differences 
are highlighted in a Note within the AD.

Explanation of Change to Costs of Compliance

    Since issuance of the NPRM, we have increased the labor rate used 
in the Costs of Compliance from $80 per work-hour to $85 per work-hour. 
The Costs of Compliance information, below, reflects this increase in 
the specified hourly labor rate.

Costs of Compliance

    We estimate that this AD will affect about 108 products of U.S. 
registry.
    The actions that are required by AD 2009-06-05 and retained in this 
AD take about 37 work-hours per product, at an average labor rate of 
$85 per work hour. Required parts cost about $0 per product. Based on 
these figures, the estimated cost of the currently required actions is 
$339,660, or $3,145 per product.

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); 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 http://
www.regulations.gov; or in person at the Docket Operations office 
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 Operations 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.

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 removing Amendment 39-15841 (74 FR 
12225, March 24, 2009) and adding the following new AD:

2009-06-05R1 Bombardier, Inc.: Amendment 39-16217. Docket No. FAA-
2009-1021; Directorate Identifier 2009-NM-054-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective April 1, 
2010.

Affected ADs

    (b) This AD revises AD 2009-06-05, Amendment 39-15841.

Applicability

    (c) This AD applies to the airplanes identified in Table 1, 
paragraphs (c)(1), (c)(2), (c)(3), and (c)(4) of this AD, 
certificated in any category.

                                     Table 1--Airplanes Affected by This AD
----------------------------------------------------------------------------------------------------------------
           Bombardier, Inc. model                                         Serial Nos.
----------------------------------------------------------------------------------------------------------------
(1) CL-600-1A11 (CL-600) airplanes..........  1004 through 1085 inclusive.
(2) CL-600-2A12 (CL-601) airplanes..........  3001 through 3066 inclusive.
(3) CL-600-2B16 (CL-601-3A & CL-601-3R)       5001 through 5194 inclusive.
 airplanes.
(4) CL-600-2B16 (CL-604) airplanes..........  5301 through 5635 inclusive.
----------------------------------------------------------------------------------------------------------------

Subject

    (d) Air Transport Association (ATA) of America Code 30: Ice and 
Rain Protection.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:
    There have been several cases of wing anti-ice piccolo duct 
failure reported on CL-600-2B19 (CRJ) aircraft. Although there have 
been no failures reported on Challenger aircraft, similar ducts are 
installed on the * * * [other] Challenger models.
    Upon investigation, it has been determined that ducts 
manufactured since June 2000, and installed since 1 August 2000, are 
susceptible to cracking due to the process used to drill the holes 
in the ducts. These ducts were installed on CL-600-2B16 aircraft, 
serial numbers 5469 through 5635 in production, but may also have 
been installed as replacements on CL-600-1A11, CL-600-2A12 and other 
CL-600-2B16 aircraft.
    Cracking of the wing anti-ice piccolo ducts could result in air 
leakage, with an adverse effect on the anti-ice air distribution 
pattern and a possible unannunciated insufficient heat condition. As 
a result, the airplane flight manual (AFM) instructions have been 
revised

[[Page 8463]]

to provide proper annunciation of an insufficient heat condition, 
utilizing existing messages and indications, with instructions, to 
the pilot, to leave icing conditions if sufficient heat cannot be 
achieved or maintained.
    This directive mandates the amendment of the AFM procedures, in 
addition to checking the part numbers and serial numbers of the 
installed wing anti-ice piccolo ducts and replacing them as 
necessary.
    The unsafe condition is anti-ice system air leakage with a 
possible adverse effect on the anti-ice air distribution pattern and 
anti-ice capability without annunciation to the flightcrew, and 
consequent reduced controllability of the airplane.

Actions and Compliance

    (f) Unless already done, do the following actions.
    (1) For airplanes identified in paragraphs (c)(1), (c)(2), 
(c)(3), and (c)(4) of this AD: Within 30 days after the effective 
date of this AD, revise the Normal and Abnormal Procedures sections 
of the applicable Canadair Challenger Airplane Flight Manual (AFM) 
by inserting a copy of the applicable temporary revision (TR) listed 
in Table 2 of this AD. When the information in the applicable TR is 
included in the general revisions of the AFM, the general revisions 
may be inserted in the AFM, as applicable, and the TR may be 
removed.

                      Table 2--Temporary Revisions
------------------------------------------------------------------------
         Canadair TR--               Dated--              To the--
------------------------------------------------------------------------
(i) 600/22....................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-1A11
                                                    AFM.
(ii) 600-1/17.................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-1A11
                                                    AFM (Winglets).
(iii) 601/14..................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM, Product Support
                                                    Publication (PSP)
                                                    601-1B-1.
(iv) 601/15...................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM, PSP 601-1A-1.
(v) 601/19....................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM, PSP 601-1B.
(vi) 601/26...................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2B16
                                                    AFM, PSP 601A-1.
(vii) 601/27..................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM.
(viii) 601/27.................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2B16
                                                    AFM, PSP 601A-1-1.
(ix) 604/20...................  April 17, 2006...  Canadair Challenger
                                                    Model CL-604 AFM,
                                                    PSP 604-1.
------------------------------------------------------------------------

     (2) For airplanes identified in paragraphs (c)(1), (c)(2), and 
(c)(3) of this AD, and for Model CL-600-2B16 (CL-604) airplanes, 
serial numbers 5301 through 5468 inclusive: Within 2,000 flight 
hours or 60 months after the effective date of this AD, whichever 
occurs first, review the airplane maintenance records to determine 
if any anti-ice piccolo ducts or complete leading edge sections were 
replaced on or after August 1, 2000.
    (3) For airplanes identified in paragraphs (c)(1), (c)(2), and 
(c)(3) of this AD, and for Model CL-600-2B16 (CL-604) airplanes, 
serial numbers 5301 through 5468 inclusive: If, during the 
accomplishment of the action required by paragraph (f)(2) of this 
AD, it is determined that any anti-ice piccolo duct has been 
replaced on or after August 1, 2000, before further flight, inspect 
to determine if any affected serial number identified in paragraph 
2.C. of the applicable service bulletin listed in Table 3 of this AD 
is installed. A review of airplane maintenance records is acceptable 
in lieu of this inspection if the serial number of the duct can be 
conclusively determined from that review. If any affected serial 
number is installed, before further flight, replace the piccolo duct 
with a serviceable piccolo duct that does not have a serial number 
identified in paragraph 2.C. of the applicable service bulletin 
listed in Table 3 of this AD. Do all actions in accordance with the 
Accomplishment Instructions of the applicable service bulletin 
listed in Table 3 of this AD.

                                           Table 3--Service Bulletins
----------------------------------------------------------------------------------------------------------------
                                      Bombardier
              Model--                   Service          Revision--                       Dated--
                                      Bulletin--
----------------------------------------------------------------------------------------------------------------
(i) CL-600-1A11 (CL-600) airplanes        600-0734  Original............  November 30, 2006.
(ii) CL-600-2A12 (CL-601)                 601-0585  Original............  November 30, 2006.
 airplanes.
(iii) CL-600-2B16 (CL-601-3A, CL-         601-0585  Original............  November 30, 2006.
 601-3R) airplanes.
(iv) CL-600-2B16 (CL-604)               604-30-003  01..................  January 21, 2008.
 airplanes.
----------------------------------------------------------------------------------------------------------------

     (4) For Model CL-600-2B16 (CL-604) airplanes, serial numbers 
5469 through 5635 inclusive: Within 2,000 flight hours or 60 months 
after the effective date of this AD, whichever occurs first, inspect 
the anti-ice piccolo ducts to determine if any affected serial 
number identified in paragraph 2.C. of Bombardier Service Bulletin 
604-30-003, Revision 01, dated January 21, 2008, is installed. If 
any affected serial number is installed, before further flight, 
replace the piccolo duct with a serviceable piccolo duct that does 
not have a serial number identified in paragraph 2.C. of Bombardier 
Service Bulletin 604-30-003, Revision 01, dated January 21, 2008. Do 
all actions in accordance with the Accomplishment Instructions of 
Bombardier Service Bulletin 604-30-003, Revision 01, dated January 
21, 2008.
    (5) As of April 28, 2009 (the effective date of AD 2009-06-05), 
no person may install on any airplane an anti-ice piccolo duct with 
a serial number identified in paragraph 2.C. of the applicable 
service bulletin identified in Table 3 of this AD.
    (6) Actions done before April 28, 2009, in accordance with 
Bombardier Service Bulletin 604-30-003, dated November 30, 2006, are 
acceptable for compliance with the corresponding actions in this AD.

FAA AD Differences

    Note 1:  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, New 
York Aircraft Certification Office, ANE-170, 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: Program Manager, 
Continuing Operational Safety, FAA, New York ACO, 1600 Stewart 
Avenue, Suite 410, Westbury, New York 11590; telephone 516-228-7300; 
fax 516-794-5531. Before using any approved AMOC on any airplane to 
which the AMOC applies, notify your appropriate principal 
maintenance inspector (PMI) or principal avionics inspector (PAI), 
as appropriate, or lacking a principal inspector, your local Flight 
Standards District Office.
    (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

[[Page 8464]]

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 Canadian Airworthiness Directive CF-2008-18, 
dated May 9, 2008, and the service information identified in Table 2 
and Table 3 of this AD, for related information.

Material Incorporated by Reference

    (i) You must use the service information specified in Table 4 
and Table 5 of this AD, as applicable, to do the actions required by 
this AD, unless the AD specifies otherwise.

          Table 4--Service Bulletins Incorporated by Reference
------------------------------------------------------------------------
 Bombardier Service Bulletin--      Revision--            Dated--
------------------------------------------------------------------------
600-0734......................  Original.........  November 30, 2006.
601-0585......................  Original.........  November 30, 2006.
604-30-003....................  01...............  January 21, 2008.
------------------------------------------------------------------------


         Table 5--Temporary Revisions Incorporated by Reference
------------------------------------------------------------------------
         Canadair TR--               Dated--              To the--
------------------------------------------------------------------------
600/22........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-1A11
                                                    Airplane Flight
                                                    Manual (AFM).
600-1/17......................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-1A11
                                                    AFM (Winglets).
601/14........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM, PSP 601-1B-1.
601/15........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM, PSP 601-1A-1.
601/19........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM, PSP 601-1B.
601/26........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2B16
                                                    AFM, PSP 601A-1.
601/27........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM.
601/27........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2B16
                                                    AFM, PSP 601A-1-1.
604/20........................  April 17, 2006...  Canadair Challenger
                                                    Model CL-604 AFM,
                                                    PSP 604-1.
------------------------------------------------------------------------

     (1) The Director of the Federal Register approved the 
incorporation by reference of the service information contained in 
Table 6 of this AD under 5 U.S.C. 552(a) and 1 CFR part 51.

             Table 6--New Material Incorporated by Reference
------------------------------------------------------------------------
         Canadair TR--               Dated--              To the--
------------------------------------------------------------------------
600/22........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-1A11
                                                    AFM.
600-1/17......................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-1A11
                                                    AFM (Winglets).
------------------------------------------------------------------------

     (2) The Director of the Federal Register previously approved 
the incorporation by reference of the service information contained 
in Table 7 and Table 8 of this AD on April 28, 2009 (74 FR 12225, 
March 24, 2009).

     Table 7--Service Bulletins Previously Incorporated by Reference
------------------------------------------------------------------------
 Bombardier Service Bulletin--      Revision--            Dated--
------------------------------------------------------------------------
600--0734.....................  Original.........  November 30, 2006.
601-0585......................  Original.........  November 30, 2006.
604-30-003....................  01...............  January 21, 2008.
------------------------------------------------------------------------


    Table 8--Temporary Revisions Previously Incorporated by Reference
------------------------------------------------------------------------
         Canadair TR--               Dated--              To the--
------------------------------------------------------------------------
601/14........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM, PSP 601-1B-1.
601/15........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM, PSP 601-1A-1.
601/19........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM, PSP 601-1B.
601/26........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2B16
                                                    AFM, PSP 601A-1.
601/27........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2A12
                                                    AFM.
601/27........................  August 16, 2006..  Canadair Challenger
                                                    Model CL-600-2B16
                                                    AFM, PSP 601A-1-1.

[[Page 8465]]


604/20........................  April 17, 2006...  Canadair Challenger
                                                    Model CL-604 AFM,
                                                    PSP 604-1.
------------------------------------------------------------------------

     (3) For service information identified in this AD, contact 
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; e-mail thd.crj@aero.bombardier.com; Internet http://
www.bombardier.com.
    (4) You may review copies of the service information at the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, 
Washington. For information on the availability of this material at 
the FAA, call 425-227-1221 or 425-227-1152.
    (5) You may also review copies of the 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: http://
www.archives.gov/federal_register/code_of_federal_regulations/
ibr_locations.html.

    Issued in Renton, Washington, on February 16, 2010.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2010-3463 Filed 2-24-10; 8:45 am]
BILLING CODE 4910-13-P

