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PROPOSED AD EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER): Docket No. FAA-2010-0870; Directorate Identifier 2010-CE-045-AD.
COMMENTS DUE DATE

(a) We must receive comments by October 18, 2010.

AFFECTED ADS

(b) None.

APPLICABILITY

(c) This  AD applies  to Embraer--Empresa  Brasileira de  Aeronautica S.A.
    (EMBRAER)  Model EMB-500  airplanes, serial  numbers 50000005  through
    50000118, 50000120, 50000122 through 50000126, 50000128, and 50000131,
    certificated in any category.

SUBJECT

(d) Air Transport Association of America (ATA) Code 36: Pneumatic.

REASON

(e) The mandatory continuing airworthiness information (MCAI) states:

It has been found the occurrences  of failure of the Flow Control  Shutoff
Valve (FCSOV) in the closed position. Failure of the two valves (left  and
right) can cause the loss of the pneumatic source, and lead to loss of the
cabin pressurization.

Since  this  condition  affects  flight  safety,  a  corrective  action is
required. Thus, sufficient reason  exists to request compliance  with this
AD.

The MCAI requires replacing both FCSOVs with new and  improved FCSOVs. You
may obtain further information by examining the MCAI in the AD docket.

ACTIONS AND COMPLIANCE

(f) Unless already done, at the next scheduled maintenance check or within
    12 months  after the  effective date  of this  AD or  within 600 hours
    time-in-service after the effective date of this AD, whichever  occurs
    first, replace  both flow  control shutoff  valves, part  number (P/N)
    1300230-13 and P/N 1300230-23, with P/N 1300230-15 and P/N 1300230-25.
    Do the replacements following  Empresa Brasileira de Aeronautica  S.A.
    (EMBRAER) Service Bulletin 500-21-0001, dated December 9, 2009.

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 Off-
    ice, 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:
    Karl Schletzbaum, Aerospace Engineer, FAA, Small Airplane Directorate,
    901 Locust, Room  301, Kansas City,  Missouri 64106; telephone:  (816)
    329-4146; fax: (816) 329-4090. 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, un-
    der 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 AGENCIA NACIONAL DE AVIACAO CIVIL--BRAZIL (ANAC) AD  No.
    2010-08-01,  dated  September  3,  2010;  and  Empresa  Brasileira  de
    Aeronautica S.A. (EMBRAER) Service Bulletin 500-21-0001, dated  Decem-
    ber 9, 2009, for related information.

Issued in Kansas City, Missouri,  on August 25, 2010. John  Colomy, Acting
Manager, Small Airplane Directorate, Aircraft Certification Service.

DATES: We must receive comments on this proposed AD by October 18, 2010.
PREAMBLE 
DEPARTMENT OF TRANSPORTATION

FEDERAL AVIATION ADMINISTRATION

14 CFR Part 39

[Docket  No.  FAA-2010-0870;  Directorate  Identifier  2010-CE-045-AD] RIN
2120-AA64

AIRWORTHINESS DIRECTIVES; Empresa Brasileira de Aeronautica S.A. (EMBRAER)
Model EMB-500 Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of  Transportat-
ion (DOT).

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose  to adopt a  new airworthiness directive  (AD) for the
products listed above. This proposed AD results from mandatory  continuing
airworthiness information  (MCAI) originated  by an  aviation authority of
another country to identify and correct an unsafe condition on an aviation
product. The MCAI describes the unsafe condition as:

It has been found the occurrences  of failure of the Flow Control  Shutoff
Valve (FCSOV) in the closed position. Failure of the two valves (left  and
right) can cause the loss of the pneumatic source, and lead to loss of the
cabin pressurization.

Since  this  condition  affects  flight  safety,  a  corrective  action is
required. Thus, sufficient reason  exists to request compliance  with this
AD.

The proposed AD would require actions that are intended to address the
unsafe condition described in the MCAI.

DATES: We must receive comments on this proposed AD by October 18, 2010.

ADDRESSES: You may send comments by any of the following methods:

Federal eRulemaking Portal: Go to  http://www.regulations.gov. Follow  the
instructions for submitting comments.

Fax: (202) 493-2251.

Mail: U.S.  Department of  Transportation, Docket  Operations, M-30,  West
Building  Ground  Floor,  Room  W12-140,  1200  New  Jersey  Avenue,  SE.,
Washington, DC 20590.

Hand Delivery: U.S. Department of Transportation, Docket Operations, M-30,
West Building  Ground Floor,  Room W12-140,  1200 New  Jersey Avenue, SE.,
Washington, DC 20590,  between 9 a.m.  and 5 p.m.,  Monday through Friday,
except Federal holidays.

EXAMINING THE AD DOCKET

You may examine the AD docket on the  Internet at  http://www.regulations.
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  this  proposed  AD,  the  regulatory  evaluation,  any  comments
received, and other information. The street address for the Docket  Office
(telephone (800) 647-5527) is in  the ADDRESSES section. Comments will  be
available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Karl  Schletzbaum,  Aerospace   Engineer,
FAA,  Small  Airplane  Directorate, 901  Locust,  Room  301, Kansas  City,
Missouri 64106; telephone: (816) 329-4146; fax: (816) 329-4090.

SUPPLEMENTARY INFORMATION:

COMMENTS INVITED

We invite you to send any written relevant data, views, or arguments about
this  proposed AD.  Send your  comments to  an address  listed  under  the
ADDRESSES  section.   Include  "Docket   No.  FAA-2010-0870;   Directorate
Identifier  2010-CE-045-AD"  at  the   beginning  of  your  comments.   We
specifically  invite  comments   on  the  overall   regulatory,  economic,
environmental, and energy  aspects of this  proposed AD. We  will consider
all comments received by the closing  date and may amend this proposed  AD
because of those comments.

We  will  post  all  comments  we  receive,  without  change,  to  http://
www.regulations.gov, including  any personal  information you  provide. We
will also  post a  report summarizing  each substantive  verbal contact we
receive about this proposed AD.

DISCUSSION

The  AGENCIA  NACIONAL  DE  AVIACAO  CIVIL--BRAZIL  (ANAC),  which  is the
aviation  authority  for  Brazil,  has  issued  AD  No.  2010-08-01, dated
September 3, 2010 (referred  to after this as  "the MCAI"), to correct  an
unsafe condition for the specified products. The MCAI states:

It has been found the occurrences  of failure of the Flow Control  Shutoff
Valve (FCSOV) in the closed position. Failure of the two valves (left  and
right) can cause the loss of the pneumatic source, and lead to loss of the
cabin pressurization.

Since  this  condition  affects  flight  safety,  a  corrective  action is
required. Thus, sufficient reason  exists to request compliance  with this
AD.

The MCAI requires replacing both FCSOVs with  new and improved FCSOVs. You
may obtain further information by examining the MCAI in the AD docket.

RELEVANT SERVICE INFORMATION

Empresa  Brasileira  de  Aeronautica  S.A.  (EMBRAER)  has  issued Service
Bulletin 500-21-0001,  dated December  9, 2009.  The actions  described in
this  service information  are intended  to correct  the unsafe  condition
identified in the MCAI.

FAA'S DETERMINATION AND REQUIREMENTS OF THE PROPOSED AD

This  product  has been  approved  by the  aviation  authority of  another
country, and is approved for  operation in the United States.  Pursuant to
our bilateral  agreement with  this State  of Design  Authority, they have
notified us  of the  unsafe condition  described in  the MCAI  and service
information  referenced  above.  We  are  proposing  this  AD  because  we
evaluated all information and  determined the unsafe condition  exists and
is likely to exist or develop on other products of the same type design.

DIFFERENCES BETWEEN THIS PROPOSED 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 proposed 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 proposed AD.

COSTS OF COMPLIANCE

We  estimate  that  this  proposed AD  will  affect  79  products of  U.S.
registry.  We also  estimate that  it would  take about  4 work-hours  per
product to  comply with  the basic  requirements of  this proposed AD. The
average labor rate is $85  per work-hour. Required parts would  cost about
$10,487 per product.

Based on these figures,  we estimate the cost  of the proposed AD  on U.S.
operators to be $855,333, or $10,827 per product.

According to Embraer, the  parts cost of this  proposed AD may be  covered
under warranty, thereby reducing the cost impact on affected  individuals.
We do not control warranty coverage for affected individuals. As a result,
we have included all cost in our cost estimate.

AUTHORITY FOR THIS RULEMAKING

Title 49 of the United States Code specifies the FAA's authority to  issue
rules on aviation safety. Subtitle I, section 106, describes the authority
of the FAA Administrator. "Subtitle VII: Aviation Programs," describes  in
more detail the scope of the Agency's authority.

We are issuing this rulemaking under the authority described in  "Subtitle
VII, Part A, Subpart III, Section 44701: General requirements." Under that
section, Congress  charges the  FAA with  promoting safe  flight of  civil
aircraft  in  air  commerce  by  prescribing  regulations  for  practices,
methods, and procedures  the Administrator finds  necessary for safety  in
air  commerce.  This regulation  is  within the  scope  of that  authority
because  it addresses  an unsafe  condition that  is likely  to exist   or
develop on products identified in this rulemaking action.

REGULATORY FINDINGS

We determined that this proposed AD would not have federalism implications
under Executive Order 13132. This proposed AD would not have a substantial
direct effect  on the  States, on  the relationship  between the  national
Government and the States, or on the distribution of power and  responsib-
ilities among the various levels of government.

For the reasons discussed above, I certify this proposed regulation:

1. Is not a "significant regulatory action" under Executive Order 12866;

2. Is not a "significant rule" under the  DOT Regulatory Policies and Pro-
   cedures (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 Regulat-
   ory Flexibility Act.

We prepared a regulatory evaluation of the estimated costs to comply  with
this proposed AD and placed it in the AD docket.

LIST OF SUBJECTS IN 14 CFR PART 39

Air transportation, Aircraft, Aviation safety, Incorporation by reference,
Safety.

THE PROPOSED AMENDMENT

Accordingly, under the authority delegated to me by the Administrator, the
FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

1. The authority citation for part 39 continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701.

SEC. 39.13 [AMENDED]

2. The FAA amends Sec.  39.13 by adding the following new AD: