EFFECTIVE DATE
(a) This airworthiness directive (AD) becomes effective October 7, 2010.
AFFECTED ADS
(b) This AD supersedes AD 2009-10-10, Amendment 39-15906.
APPLICABILITY
(c) This AD applies to Bombardier, Inc. Model CL-600-2C10 (Regional Jet
Series 700, 701, & 702) airplanes, certificated in any category,
serial numbers 10003 through 10260 inclusive; and Model CL-600-2D15
(Regional Jet Series 705) and CL-600-2D24 (Regional Jet Series 900)
airplanes, certificated in any category, serial numbers 15001 through
15095 inclusive.
SUBJECT
(d) Air Transport Association (ATA) of America Code 21: Air Conditioning.
REASON
(e) The mandatory continuing airworthiness information (MCAI) states:
During testing, it was discovered that when the outflow valve (OFV)
manual mode connector is not connected, the manual mode motor and
altitude limitation are not properly tested. Consequently, a
disconnect of the OFV manual mode and/or a related wiring failure
could potentially result in a dormant loss of several CPC [cabin
pressure control] backup/safety functions, including OFV manual
control, altitude limitation, emergency depressurization and smoke
clearance. This deficiency is applicable to CPC units, Part Number
(P/N) GG670-98002-3 and -5, and CPCP [cabin pressure control panel],
Part Number GG670-98001-5, -7 and -9.
This [Canadian] directive mandates an interim repetitive check of the
OFV manual mode motor and altitude limitation functions, followed by
modification (software update) of the CPC units and the CPCP.
The corrective action for findings of improper OFV manual mode motor
and altitude limitation functions is replacing the valve with a new or
serviceable valve.
RESTATEMENT OF REQUIREMENTS OF AD 2009-10-10
ACTIONS AND COMPLIANCE
(f) Unless already done, do the following actions. Within 450 flight hours
after May 29, 2009 (the effective date of AD 2009-10-10), inspect the
OFV for proper operation of the manual mode motor and altitude
limitation functions, in accordance with Part A of the Accomplishment
Instructions of Bombardier Alert Service Bulletin A670BA-21-022, dated
August 3, 2006 ("the service bulletin"). If the OFV manual mode motor
or altitude limitation functions do not operate properly, before
further flight, do the actions specified in paragraphs (f)(1) and
(f)(2) of this AD. Repeat the inspection thereafter at intervals not
to exceed 450 flight hours. Accomplishing the actions specified in
paragraph (g) of this AD terminates the requirements of this
paragraph.
(1) Make sure that the electrical connectors, MPE23P1 and MPE23P2, are
connected to the OFV.
(2) Repeat the inspection of the OFV for proper operation of the manual
mode motor and altitude limitation functions, in accordance with Part
A of the service bulletin. If the OFV manual mode motor or altitude
limitation functions do not operate properly, before further flight,
replace the OFV with a new or serviceable valve in accordance with
Tasks 21-32-01-000-801 and 21-32-01-400-801 of the Bombardier CRJ
Regional Jet Series Aircraft Maintenance Manual, CSP B-001, Part 2,
Volume 1, Revision 28, dated January 20, 2009, and do the inspection
of the OFV specified in paragraph (f) of this AD.
NEW REQUIREMENTS OF THIS AD
ACTIONS AND COMPLIANCE
(g) Unless already done, do the following actions.
(1) Prior to accomplishing the actions specified in paragraph (g)(2) of
this AD: Install modified or new CPC units, P/N GG670-98002-7, in
accordance with Part B of the Accomplishment Instructions of
Bombardier Alert Service Bulletin A670BA-21-022, dated August 3, 2006.
(2) Within 4,500 flight hours after the effective date of this AD: Install
modified or new CPCPs, P/N GG670-98001-11, in accordance with Part C
of the Accomplishment Instructions of Bombardier Alert Service
Bulletin A670BA-21-022, dated August 3, 2006. Doing the actions
required by paragraph (g)(2) of this AD terminates the requirements of
paragraph (f) of this AD.
(h) Installing CPC units, P/N GG670-98002-9, in accordance with Bombardier
Service Bulletin 670BA-21-030, dated December 22, 2009, is acceptable
for compliance with the corresponding requirements of paragraph (g)(1)
of this AD.
(i) Actions done before May 29, 2009, in accordance with a Liebherr
service bulletin identified in Table 1 of this AD, are acceptable for
compliance with the corresponding requirements of paragraph (g)(1) or
(g)(2) of this AD.
TABLE 1--LIEBHERR SERVICE BULLETINS
______________________________________________________________________
LIEBHERR SERVICE BULLETIN - REVISION - DATED -
______________________________________________________________________
GG670-98001-21-03 Original March 21, 2006
GG670-98001-21-03 1 November 15, 2007
GG670-98002-21-02 Original April 21, 2006
GG670-98002-21-02 1 November 15, 2007
______________________________________________________________________
FAA AD DIFFERENCES
NOTE 1: This AD differs from the MCAI and/or service information as
follows: The MCAI and Bombardier Alert Service Bulletin A670BA-21-022,
dated August 3, 2006, do not describe corrective actions for findings of
improper OFV manual mode motor and altitude limitation functions. This AD
requires the actions in paragraphs (f)(1) and (f)(2) of this AD, which
include replacing the valve if the OFV manual mode motor or altitude
limitation functions do not operate properly.
OTHER FAA AD PROVISIONS
(j) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New York
Aircraft Certification Office (ACO), 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 principal maintenance inspector (PMI) or
principal avionics inspector (PAI), as appropriate, or lacking a
principal inspector, your local Flight Standards District Office. The
AMOC approval letter must specifically reference this AD. AMOCs
approved previously in accordance with AD 2009-10-10 are approved as
AMOCs for the corresponding provisions of this AD.
(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
(k) Refer to MCAI Canadian Airworthiness Directive CF-2009-08R1, dated
April 13, 2010; and the service information identified in Table 2 of
this AD; for related information.
TABLE 2--RELATED SERVICE INFORMATION
______________________________________________________________________
BOMBARDIER SERVICE INFORMATION REVISION LEVEL DATE
______________________________________________________________________
Bombardier Alert Service Bulletin Original August 3, 2006
A670BA-21-022
Bombardier Service Bulletin Original December 22, 2009
670BA-21-030
Task 21-32-01-000-801 of the 28 January 20, 2009
Bombardier CRJ Regional Jet
Series Aircraft Maintenance
Manual, CSP B-001, Part 2,
Volume 1
Task 21-32-01-400-801, of the 28 January 20, 2009
Bombardier CRJ Regional Jet
Series Aircraft Maintenance
Manual, CSP B-001, Part 2,
Volume 1
______________________________________________________________________
MATERIAL INCORPORATED BY REFERENCE
(l) You must use the applicable service information identified in Table 3
of this AD, to do the actions required by this AD, unless the AD
specifies otherwise. If accomplished, you must use Bombardier Service
Bulletin 670BA-21-030, dated December 22, 2009, to do the optional
actions specified by this AD, unless the AD specifies otherwise.
TABLE 3--REQUIRED MATERIAL INCORPORATED BY REFERENCE
______________________________________________________________________
BOMBARDIER SERVICE INFORMATION REVISION LEVEL DATE
______________________________________________________________________
Bombardier Alert Service Bulletin Original August 3, 2006
A670BA-21-022
Task 21-32-01-000-801 of the 28 January 20, 2009
Bombardier CRJ Regional Jet
Series Aircraft Maintenance
Manual, CSP B-001, Part 2,
Volume 1
Task 21-32-01-400-801, of the 28 January 20, 2009
Bombardier CRJ Regional Jet
Series Aircraft Maintenance
Manual, CSP B-001, Part 2,
Volume 1
______________________________________________________________________
(1) The Director of the Federal Register approved the incorporation by
reference of Bombardier Service Bulletin 670BA-21-030, dated December
22, 2009, under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) The Director of the Federal Register previously approved the
incorporation by reference of the service information contained in
Table 4 of this AD on May 29, 2009 (74 FR 22646, May 14, 2009).
TABLE 4--MATERIAL PREVIOUSLY INCORPORATED BY REFERENCE
______________________________________________________________________
BOMBARDIER SERVICE INFORMATION REVISION LEVEL DATE
______________________________________________________________________
Bombardier Alert Service Bulletin Original August 3, 2006
A670BA-21-022
Task 21-32-01-000-801 of the 28 January 20, 2009
Bombardier CRJ Regional Jet
Series Aircraft Maintenance
Manual, CSP B-001, Part 2,
Volume 1
Task 21-32-01-400-801, of the 28 January 20, 2009
Bombardier CRJ Regional Jet
Series Aircraft Maintenance
Manual, CSP B-001, Part 2,
Volume 1
______________________________________________________________________
(3) For service information identified in this AD, contact Bombardier,
Inc., 400 Cote-Vertu Road West, Dorval, Quebec 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.
(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 August 13, 2010. Ali Bahrami, Manager,
Transport Airplane Directorate, Aircraft Certification Service.
FOR FURTHER INFORMATION CONTACT: Fabio Buttitta, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228-7303; fax (516) 794-5531.
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AGENCY: Federal Aviation Administration
(FAA), Department of Transportation (DOT).
ACTION: Final rule.
SUMMARY: We are superseding 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:
During testing, it was discovered that when the outflow valve (OFV) manual
mode connector is not connected, the manual mode motor and altitude limitation
are not properly tested. Consequently, a disconnect of the OFV manual
mode and/or a related wiring failure could potentially result in a dormant
loss of several CPC [cabin pressure control] backup/safety functions,
including OFV manual control, altitude limitation, emergency depressurization
and smoke clearance. * * *
* * * * *
We are issuing this AD to require actions to correct the unsafe condition
on these products.
DATES: This AD becomes effective October 7, 2010.
The Director of the Federal Register approved the incorporation by reference
of a certain publication listed in this AD as of October 7, 2010.
On May 29, 2009 (74 FR 22646, May 14, 2009), the Director of the Federal
Register approved the incorporation by reference of certain other publications
listed in this AD.
DATES: This AD becomes effective October 7, 2010.
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: Fabio Buttitta, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228-7303; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
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 December 3, 2009 (74 FR 63333),
and proposed to supersede AD 2009-10-10, Amendment 39-15906 (74 FR 22646,
May 14, 2009). That NPRM proposed to correct an unsafe condition for the
specified products. This AD retains the requirements of AD 2009-10-10
and also requires modification (software update) of the cabin pressure
control units and cabin pressure control panels.
Comments
We gave the public the opportunity to participate in developing this AD.
We considered the comments received.
Request To Allow Installation of a Certain Cabin Pressure Control (CPC)
Part Number
After the comment period for the NPRM closed, American Eagle Airlines
(AEA) made an ex parte call to the FAA to request that we allow the installation
of CPC units having part number (P/N) GG670- 98002-9 that were modified
in accordance with Bombardier Service Bulletin 670BA-21-030, dated December
22, 2009, as a method of compliance with paragraph (g)(1) of the NPRM.
AEA did not provide additional supporting information to substantiate
this request.
We agree with the commenter's request. After contacting Transport Canada
Civil Aviation (TCCA) for further details, we determined that installation
of certain CPC units modified according to Bombardier Service Bulletin
670BA-21-030, dated December 22, 2009, is acceptable for compliance with
paragraph (g)(1) of this AD. We have added new paragraph (h) to this AD
to provide this method of compliance, and have re-identified subsequent
paragraphs accordingly.
Request To Allow Installation of Certain Modified CPCs and Cabin Pressure
Control Panels (CPCPs)
AEA also requests allowing certain CPC units and CPCPs that were modified
in accordance with certain Liebherr service bulletins (identified in the
following table) as a method of compliance with the actions specified
in paragraphs (g)(1) and (g)(2) of the NPRM. AEA states that those Liebherr
service bulletins were approved as an alternative method of compliance
(AMOC) to AD 2009-10-10. AEA also suggests that allowing the use of those
certain Liebherr service bulletins would prevent the need for future AMOCs.
Liebherr Service Bulletins
|
Liebherr
Service Bulletin -
|
Revision
-
|
Dated -
|
|
GG670-98001-21-03
|
Original
|
March 21, 2006
|
|
GG670-98001-21-03
|
1
|
November 15,
2007
|
|
GG670-98002-21-02
|
Original
|
April 21, 2006
|
|
GG670-98002-21-02
|
1
|
November 15,
2007
|
We partially agree with the commenter's
request. Since these Liebherr service bulletins were referenced as sources
of additional guidance in Bombardier Service Bulletin A670BA-21-022, dated
August 3, 2006, that was required by AD 2009-10-10, we agree to provide
credit for actions done according to those Liebherr service bulletins
if the actions were accomplished before the effective date of AD 2009-10-10.
We have added paragraph (i) to this AD to provide this credit.
Explanation of Change to Applicability
We have revised the NPRM 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 AMOC Paragraph
We have revised paragraph (j)(1) of this AD to give credit for AMOCs approved
previously for AD 2009-10-10.
Conclusion
We reviewed the available data, including the comments received, 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.
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 353 products of U.S. registry.
The actions that are required by AD 2009-10-10 and retained in this AD
take about 2 work-hours per product, at an average labor rate of $85 per
work hour. Based on these figures, the estimated cost of the currently
required actions is $170 per product.
We estimate that it will take about 3 work-hours per product to comply
with the new basic requirements of this AD. The average labor rate is
$85 per work-hour. Required parts will cost about $43,000 per product.
Where the service information lists required parts costs that are covered
under warranty, we have assumed that there will be no charge for these
costs. As we do not control warranty coverage for affected parties, some
parties may incur costs higher than estimated here. Based on these figures,
we estimate the cost of this AD to the U.S. operators to be $15,269,015,
or $43,255 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
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.
Sec. 39.13 [Amended]
2. The FAA amends Sec. 39.13 by removing Amendment 39-15906 (74 FR 22646,
May 14, 2009) and adding the following new AD:
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