Airworthiness Directives; Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes, 19203-19207 [2010-7801]
Download as PDF
<![CDATA[
Federal Register / Vol. 75, No. 71 / Wednesday, April 14, 2010 / Rules and Regulations
barrier assembly in the wing stub rear box.
In the event of fuel tank leak in this region
associated with an unsealed vapor barrier
assembly, migration of flammable vapors and
fluids to middle electronic bay may occur,
which then could lead to an uncontained fire
event if the flammable vapors finds an
ignition source.
*
*
*
*
*
The required actions include a detailed
inspection for gaps, voids, or holes in the
sealant. Corrective actions include applying
sealant into any gaps, voids, or holes.
jlentini on DSKJ8SOYB1PROD with RULES
Compliance
(f) You are responsible for having the
actions required by this AD performed within
the compliance times specified, unless the
actions have already been done.
Actions
(g) Unless already done, do the following
actions.
(1) Within 6,000 flight hours or 24 months
after the effective date of this AD, whichever
occurs first, do a detailed inspection of the
vapor barrier assembly in the wing stub rear
box for missing sealant which forms gaps,
voids or holes, in accordance with the
Accomplishment Instructions of EMBRAER
Service Bulletin 170–57–0036, dated March
13, 2009 (for Model ERJ 170–100 LR, –100
STD, –100 SE, –100 SU, –200 LR, –200 STD,
and –200 SU airplanes); or EMBRAER
Service Bulletin 190–57–0027, dated March
18, 2009 (for Model ERJ 190–100 STD, –100
LR, –100 IGW, –200 STD, –200 LR, and –200
IGW airplanes).
Note 1: For the purposes of this AD, a
detailed inspection is: ‘‘An intensive
examination of a specific item, installation,
or assembly to detect damage, failure, or
irregularity. Available lighting is normally
supplemented with a direct source of good
lighting at an intensity deemed appropriate.
Inspection aids such as mirror, magnifying
lenses, etc., may be necessary. Surface
cleaning and elaborate access procedures
may be required.’’
(2) If the vapor barrier sealant is found to
be correctly applied in accordance with the
Accomplishment Instructions of EMBRAER
Service Bulletin 170–57–0036, dated March
13, 2009 (for Model ERJ 170–100 LR, –100
STD, –100 SE, –100 SU, –200 LR, –200 STD,
and –200 SU airplanes); or EMBRAER
Service Bulletin 190–57–0027, dated March
18, 2009 (for Model ERJ 190–100 STD, –100
LR, –100 IGW, –200 STD, –200 LR, and –200
IGW airplanes); no further action is required
by this AD.
(3) If any vapor barrier sealant is found
missing (gaps, voids or holes) during the
inspection required by paragraph (g)(1) of
this AD, before further flight apply sealant
into the applicable gaps, voids, and holes, in
accordance with the Accomplishment
Instructions of EMBRAER Service Bulletin
170–57–0036, dated March 13, 2009 (for
Model ERJ 170–100 LR, –100 STD, –100 SE,
–100 SU, –200 LR, –200 STD, and –200 SU
airplanes); or EMBRAER Service Bulletin
190–57–0027, dated March 18, 2009 (for
Model ERJ 190–100 STD, –100 LR, –100 IGW,
–200 STD, –200 LR, and –200 IGW
airplanes).
VerDate Nov<24>2008
16:13 Apr 13, 2010
Jkt 220001
FAA AD Differences
Note 2: This AD differs from the MCAI
and/or service information as follows: No
differences.
Other FAA AD Provisions
(h) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, International
Branch, ANM–116, Transport Airplane
Directorate, 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: Kenny Kaulia,
Aerospace Engineer, International Branch,
ANM–116, Transport Airplane Directorate,
FAA, 1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone (425)
227–2848; fax (425) 227–1149. 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.
(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
(i) Refer to MCAI Brazilian Airworthiness
Directives 2009–07–01 and 2009–07–02, both
effective July 13, 2009; EMBRAER Service
Bulletin 170–57–0036, dated March 13, 2009;
and EMBRAER Service Bulletin 190–57–
0027, dated March 18, 2009; for related
information.
Material Incorporated by Reference
(j) You must use EMBRAER Service
Bulletin 170–57–0036, dated March 13, 2009;
or EMBRAER Service Bulletin 190–57–0027,
dated March 18, 2009; as applicable; 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 Empresa Brasileira de
Aeronautica S.A. (EMBRAER), Technical
Publications Section (PC 060), Av. Brigadeiro
˜
Faria Lima, 2170—Putim—12227–901 Sao
Jose dos Campos—SP—BRASIL; telephone:
+55 12 3927–5852 or +55 12 3309–0732; fax:
+55 12 3927–7546; e-mail:
distrib@embraer.com.br; Internet: https://
www.flyembraer.com.
PO 00000
Frm 00019
Fmt 4700
Sfmt 4700
19203
(3) 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.
(4) 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: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
Issued in Renton, Washington, on April 1,
2010.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2010–8184 Filed 4–13–10; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–1068; Directorate
Identifier 2009–NM–042–AD; Amendment
39–16258; AD 2010–08–03]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. Model CL–600–2B19 (Regional Jet
Series 100 & 440) Airplanes
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:
The heating capability of several Angle Of
Attack (AOA) transducer heating elements
removed from in-service aircraft have been
found to be below the minimum requirement.
Also, it was discovered that a large number
of AOA transducers repaired in an approved
maintenance facility were not calibrated
accurately.
Inaccurate calibration of the AOA
transducer and/or degraded AOA transducer
heating elements can result in early or late
activation of the stall warning, stick shaker
and stick pusher by the Stall Protection
Computer (SPC).
*
*
*
*
*
The unsafe condition is reduced
controllability of the airplane. We are
issuing this AD to require actions to
E:\FR\FM\14APR1.SGM
14APR1
19204
Federal Register / Vol. 75, No. 71 / Wednesday, April 14, 2010 / Rules and Regulations
correct the unsafe condition on these
products.
DATES: This AD becomes effective May
19, 2010.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of May 19, 2010.
The Director of the Federal Register
previously approved the incorporation
by reference of a certain publication
listed in this AD as of March 9, 2009 (74
FR 7789, February 20, 2009).
ADDRESSES: You may examine the AD
docket on the Internet at https://
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:
Wing Chan, Aerospace Engineer,
Systems and Flight Test Branch, ANE–
172, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228–7311; fax
(516) 794–5531.
SUPPLEMENTARY INFORMATION:
jlentini on DSKJ8SOYB1PROD with RULES
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 November 18, 2009 (74 FR
59480), and proposed to supersede AD
2009–04–11, Amendment 39–15817 (74
FR 7789, February 20, 2009). That
NPRM proposed to correct an unsafe
condition for the specified products.
The mandatory continued
airworthiness information (MCAI)
states:
The heating capability of several Angle Of
Attack (AOA) transducer heating elements
removed from in-service aircraft have been
found to be below the minimum requirement.
Also, it was discovered that a large number
of AOA transducers repaired in an approved
maintenance facility were not calibrated
accurately.
Inaccurate calibration of the AOA
transducer and/or degraded AOA transducer
heating elements can result in early or late
activation of the stall warning, stick shaker
and stick pusher by the Stall Protection
Computer (SPC).
This [Canadian] directive mandates a
periodic inspection of the inrush current to
verify the AOA heating capability and
replacement of the inaccurately calibrated
AOA transducers.
The unsafe condition is reduced
controllability of the airplane. This AD
retains the requirements of AD 2009–
04–11 and also requires a one-time
VerDate Nov<24>2008
16:13 Apr 13, 2010
Jkt 220001
inspection of certain angle of attack
(AOA) transducers, replacement of
transducers having certain serial
numbers, repetitive inspections of the
inrush current for certain AOA
transducers, and replacement of
inaccurately calibrated AOA
transducers. You may obtain further
information by examining the MCAI in
the AD docket.
Comments
We gave the public the opportunity to
participate in developing this AD. We
considered the comment received.
Request To Allow Records Check
Mesa Airlines requests that we allow
the use of a records check in lieu of the
inspection for serial numbers specified
in paragraph (g)(2) of the NPRM. Mesa
Airlines points out that serial numbers
could already be known to operators
after compliance with AD 2009–04–11.
Mesa Airlines also notes that AOA
transducers are delicate instruments
that could be damaged by removal for
the purpose of confirming serial
numbers.
For the reasons provided by Mesa
Airlines, we agree to allow operators to
perform a review of the airplane
maintenance records in lieu of
performing an inspection of the AOA
transducer to determine the serial
number, if the serial number can be
conclusively determined from that
review. We have revised paragraph
(g)(2) of this AD accordingly.
Explanation of Change to Applicability
We have revised the applicability of
this AD to identify model designations
as published in the most recent type
certificate data sheet for the affected
models.
Conclusion
We reviewed the available data,
including the comment 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
PO 00000
Frm 00020
Fmt 4700
Sfmt 4700
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 workhour 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 613 products of U.S. registry.
The actions that are required by AD
2009–04–11 and retained in this AD
take about 1 work-hour per product, at
an average labor rate of $85 per workhour. Based on these figures, the
estimated cost of the currently required
actions is $85 per product.
We estimate that it will take about 1
work-hour per product to comply with
the new basic requirements of this AD.
The average labor rate is $85 per workhour. Based on these figures, we
estimate the cost of this AD to the U.S.
operators to be $52,105, or $85 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,
E:\FR\FM\14APR1.SGM
14APR1
Federal Register / Vol. 75, No. 71 / Wednesday, April 14, 2010 / Rules and Regulations
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 https://
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.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by
removing Amendment 39–15817 (74 FR
7789, February 20, 2009) and adding the
following new AD:
■
2010–08–03 Bombardier, Inc: Amendment
39–16258. Docket No. FAA–2009–1068;
Directorate Identifier 2009–NM–042–AD.
Effective Date
(a) This airworthiness directive (AD)
becomes effective May 19, 2010.
Affected ADs
(b) This AD supersedes AD 2009–04–11,
Amendment 39–15817.
Applicability
(c) This AD applies to Bombardier, Inc.
Model CL–600–2B19 (Regional Jet Series 100
& 440) airplanes, serial numbers 7003 and
subsequent, certificated in any category, that
are equipped with Thales angle of attack
(AOA) transducers having part number (P/N)
45150340 or C16258AA.
Subject
(d) Air Transport Association (ATA) of
America Code 27: Flight controls.
Reason
(e) The mandatory continued airworthiness
information (MCAI) states:
The heating capability of several Angle Of
Attack (AOA) transducer heating elements
removed from in-service aircraft have been
found to be below the minimum requirement.
Also, it was discovered that a large number
of AOA transducers repaired in an approved
19205
maintenance facility were not calibrated
accurately.
Inaccurate calibration of the AOA
transducer and/or degraded AOA transducer
heating elements can result in early or late
activation of the stall warning, stick shaker
and stick pusher by the Stall Protection
Computer (SPC).
This [Canadian] directive mandates a
periodic inspection of the inrush current to
verify the AOA heating capability and
replacement of the inaccurately calibrated
AOA transducers.
The unsafe condition is reduced
controllability of the airplane. This AD
retains the requirements of AD 2009–04–11
and also requires a one-time inspection of
certain AOA transducers, replacement of
transducers having certain serial numbers,
repetitive inspections of the inrush current
for certain AOA transducers, and
replacement of inaccurately calibrated AOA
transducers.
Restatement of Requirements of AD 2009–
04–11, With No Changes
(f) Unless already done, do the following
actions:
(1) For airplanes equipped with a
transducer having accumulated more than
7,500 total flight hours as of March 9, 2009
(the effective date of AD 2009–04–11):
Within 250 flight hours after March 9, 2009,
measure the inrush current of both AOA
transducers in accordance with Part A of the
Accomplishment Instructions of Bombardier
Service Bulletin 601R–27–153, Revision A,
dated December 16, 2008.
(i) If both AOA transducers are found to
have an inrush current of 1.60 amps or more,
repeat the measurement thereafter at
intervals not to exceed the applicable interval
specified in Table 1 of this AD. Do the
measurement in accordance with Part A of
the Accomplishment Instructions of
Bombardier Service Bulletin 601R–27–153,
Revision A, dated December 16, 2008.
TABLE 1—REPETITIVE MEASUREMENT INTERVALS
Then repeat the measurement—
More
More
More
More
jlentini on DSKJ8SOYB1PROD with RULES
If the last inrush current measurement of the serviceable AOA transducer is—
Within
Within
Within
Within
than
than
than
than
or
or
or
or
equal
equal
equal
equal
to
to
to
to
1.90
1.80
1.70
1.60
amps
amps
amps
amps
.............................................................
but less than 1.90 amps ....................
but less than 1.80 amps ....................
but less than 1.70 amps ....................
(ii) If one AOA transducer is found to have
an inrush current below 1.60 amps, and the
other AOA transducer is found to have an
inrush current of 1.60 amps or more: Do the
actions required by paragraphs (f)(1)(ii)(A)
and (f)(1)(ii)(B) of this AD.
(A) For the AOA transducer having an
inrush current of 1.60 amps or more: Repeat
the measurement thereafter at intervals not to
exceed the applicable interval specified in
Table 1 of this AD. Do the measurement in
accordance with Part A of the
Accomplishment Instructions of Bombardier
Service Bulletin 601R–27–153, Revision A,
dated December 16, 2008.
VerDate Nov<24>2008
16:13 Apr 13, 2010
Jkt 220001
2,000 flight hours after the last measurement.
1,500 flight hours after the last measurement.
1,000 flight hours after the last measurement.
500 flight hours after the last measurement.
(B) For the AOA transducer having an
inrush current below 1.60 amps (‘‘degraded’’
transducer): Within 1,000 flight hours after
March 9, 2009, replace that transducer in
accordance with Part C of the
Accomplishment Instructions of Bombardier
Service Bulletin 601R–27–153, Revision A,
dated December 16, 2008. At the applicable
time specified in Table 1 of this AD if the
degraded transducer was replaced with a
serviceable transducer, or within 2,000 flight
hours after replacement if the degraded
transducer was replaced with a new
transducer, do the measurement for that
replacement transducer and repeat the
PO 00000
Frm 00021
Fmt 4700
Sfmt 4700
measurements thereafter at intervals not to
exceed the applicable interval specified in
Table 1 of this AD. Do the measurement in
accordance with Part A of the
Accomplishment Instructions of Bombardier
Service Bulletin 601R–27–153, Revision A,
dated December 16, 2008.
(iii) If both AOA transducers are found to
have an inrush current below 1.60 amps, do
the action specified in paragraph (f)(1)(iii)(A)
or (f)(1)(iii)(B) of this AD.
(A) Before further flight, replace one of the
degraded AOA transducers with a new or
serviceable transducer; and replace the other
degraded transducer with a new or
E:\FR\FM\14APR1.SGM
14APR1
jlentini on DSKJ8SOYB1PROD with RULES
19206
Federal Register / Vol. 75, No. 71 / Wednesday, April 14, 2010 / Rules and Regulations
serviceable transducer within 1,000 flight
hours after the measurement required by
paragraph (f)(1) of this AD; in accordance
with Part C of the Accomplishment
Instructions of Bombardier Service Bulletin
601R–27–153, Revision A, dated December
16, 2008. At the applicable time specified in
Table 1 of this AD, if the degraded transducer
was replaced with a serviceable transducer;
or within 2,000 flight hours after replacement
if the degraded transducer was replaced with
a new transducer: Do the measurement for
that replacement transducer and repeat the
measurement thereafter at intervals not to
exceed the applicable interval specified in
Table 1 of this AD. Do the measurements in
accordance with Part A of the
Accomplishment Instructions of Bombardier
Service Bulletin 601R–27–153, Revision A,
dated December 16, 2008.
(B) Within 1,000 flight hours after the
measurement required by paragraph (f) of
this AD, replace both degraded AOA
transducers with new or serviceable
transducers in accordance with Part C of the
Accomplishment Instructions of Bombardier
Service Bulletin 601R–27–153, Revision A,
dated December 16, 2008. Until the
replacement is done, dispatch with two
degraded AOA transducers is allowed,
provided that the applicable Limitations
section of the airplane flight manual (AFM)
is revised to include the following statement
or a copy of this AD is inserted into the
applicable Limitations section of the AFM.
‘‘Dispatch is allowed if:
(a) Operations are not conducted in visible
moisture (including standing water and
slush) in any form,
(b) Operations are not conducted in known
or forecast icing conditions,
(c) Both Ice Detection Systems are
operative; and,
(d) Operations are conducted in day VMC
conditions only.’’
After the replacement has been
accomplished, the statement or the copy of
this AD may be removed from the AFM. At
the applicable time specified in Table 1 of
this AD, if the degraded transducer was
replaced with a serviceable transducer; or
within 2,000 flight hours after replacement
with a new transducer: Do the measurement
for that replacement transducer and repeat
the measurement thereafter at intervals not to
exceed the applicable interval specified in
Table 1 of this AD. Do the measurement in
accordance with Part A of Accomplishment
Instructions of Bombardier Service Bulletin
601R–27–153, Revision A, dated December
16, 2008.
(2) If, during any repetitive measurement
required by paragraphs (f)(1)(i), (f)(1)(ii), and
(f)(1)(iii) of this AD, any AOA transducer is
found to have an inrush current below 1.60
amps, before further flight, replace that
transducer in accordance with Part C of the
Accomplishment Instructions of Bombardier
Service Bulletin 601R–27–153, Revision A,
dated December 16, 2008. At the applicable
time specified in Table 1 of this AD, if the
degraded transducer was replaced with a
serviceable transducer; or within 2,000 flight
hours after replacement if the degraded
transducer was replaced with a new
transducer: Do the measurement for that
VerDate Nov<24>2008
16:13 Apr 13, 2010
Jkt 220001
replacement transducer as specified in
paragraph (f)(1)(ii)(B) of this AD and repeat
the measurement thereafter at intervals not to
exceed the applicable interval specified in
Table 1 of this AD.
(3) Actions done before March 9, 2009, in
accordance with Bombardier Service Bulletin
601R–27–153, dated October 17, 2008, are
acceptable for compliance with the
corresponding requirements of paragraphs
(f)(1) and (f)(2) of this AD.
New Requirements of This AD: Actions and
Compliance
(g) Unless already done, do the following
actions.
(1) For airplanes equipped with a
transducer having accumulated 7,500 or
fewer flight hours as of March 9, 2009, except
transducers that have been measured in
accordance with paragraph (f)(1) of this AD:
Do the actions specified in paragraph (f)(1) of
this AD before the transducer accumulates
7,500 total flight hours, or within 500 flight
hours after the effective date of this AD,
whichever occurs later.
(2) Within 900 flight hours after the
effective date of this AD, inspect AOA
transducers having P/N 45150340 or
C16258AA to determine the serial numbers.
A review of airplane maintenance records is
acceptable in lieu of this inspection if the
serial number of the AOA transducer can be
conclusively determined from that review.
(i) If the serial number is not identified in
paragraph 1.A.(1) of Bombardier Service
Bulletin 601R–27–154, dated December 1,
2008, no further action is required by this
paragraph.
(ii) If the part number and serial number
are identified in one of the tables in
paragraph 1.A.(1) of Bombardier Service
Bulletin 601R–27–154, dated December 1,
2008, and have the suffix ‘‘A,’’ no further
action is required by this paragraph.
Note 1: Bombardier Service Bulletin 601R–
27–154, dated December 1, 2008, references
Thales Avionics Service Bulletins 45150340–
31–004 and C16258A–27–002, both dated
November 28, 2008, as additional sources of
guidance for part and serial number
information.
(iii) If the part number and serial number
are identified in a table in paragraph 1.A.(1)
of Bombardier Service Bulletin 601R–27–154,
dated December 1, 2008, before further flight,
replace the AOA transducer with a new or
serviceable transducer, in accordance with
the Accomplishment Instructions of
Bombardier Service Bulletin 601R–27–154,
dated December 1, 2008.
(3) As of the effective date of this AD, no
person may install a replacement AOA
transducer having P/N 45150340 or P/N
C16258AA with a serial number identified in
paragraph 1.A.(1) of Bombardier Service
Bulletin 601R–27–154, dated December 1,
2008, unless the serial number has the suffix
‘‘A.’’
FAA AD Differences
Note 2: This AD differs from the MCAI
and/or service information as follows: No
differences.
PO 00000
Frm 00022
Fmt 4700
Sfmt 4700
Other FAA AD Provisions
(h) 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.
(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
(i) Refer to MCAI Canadian Airworthiness
Directive CF–2008–35, dated December 22,
2008; Bombardier Service Bulletin 601R–27–
154, dated December 1, 2008; and
Bombardier Service Bulletin 601R–27–153,
Revision A, dated December 16, 2008; for
related information.
Material Incorporated by Reference
(j) You must use Bombardier Service
Bulletin 601R–27–154, dated December 1,
2008; and Bombardier Service Bulletin 601R–
27–153, Revision A, dated December 16,
2008; as applicable; 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
Bombardier Service Bulletin 601R–27–154,
dated December 1, 2008, 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 Bombardier Service Bulletin
601R–27–153, Revision A, dated December
16, 2008, on March 9, 2009 (74 FR 7789,
February 20, 2009).
(3) For service information identified in
ˆ
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 https://
www.bombardier.com.
(4) You may review copies of the service
information at the FAA, Transport Airplane
E:\FR\FM\14APR1.SGM
14APR1
Federal Register / Vol. 75, No. 71 / Wednesday, April 14, 2010 / Rules and Regulations
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: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
Issued in Renton, Washington, on March
25, 2010.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2010–7801 Filed 4–13–10; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2010–0282; Directorate
Identifier 2009–NM–140–AD; Amendment
39–16262; AD 2010–08–07]
RIN 2120–AA64
Airworthiness Directives; Airbus Model
340–500 and –600 Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for
comments.
AGENCY:
We are adopting a new
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:
jlentini on DSKJ8SOYB1PROD with RULES
SUMMARY:
Following successive ECAM [electronic
centralized aircraft monitoring] warnings
during the approach phase, just after the
landing gear extension sequence and an
uneventful landing, the maintenance
inspection on an Airbus A340 has revealed
a hydraulic leak that was caused by the
failure of the Yellow high pressure (HP)
hydraulic pipe supplying the back-up Nose
Wheel Steering (NWS) which runs along the
lower part of the avionic bay from frame 17
to frame 20.
This leak resulted in the loss of the Yellow
hydraulic system and contamination of the
avionics bay with sprayed hydraulic fluid.
This condition, if not detected and
corrected, could result in an ingestion of
hydraulic fluid in the electrical connectors,
which could generate an arcing phenomenon
and, if sufficient energy is provided by the
VerDate Nov<24>2008
16:13 Apr 13, 2010
Jkt 220001
arcing, lead to an ignition source, which
would be an unsafe condition.
*
*
*
*
*
This AD requires actions that are
intended to address the unsafe
condition described in the MCAI.
DATES: This AD becomes effective April
29, 2010.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in the AD
as of April 29, 2010.
We must receive comments on this
AD by June 1, 2010.
ADDRESSES: You may send comments by
any of the following methods:
• Federal eRulemaking Portal: Go to
https://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
W12–40, 1200 New Jersey Avenue, SE.,
Washington, DC, 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 https://
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 this AD, 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.
FOR FURTHER INFORMATION CONTACT:
Vladimir Ulyanov, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 227–1138; fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
Discussion
The European Aviation Safety Agency
(EASA), which is the Technical Agent
for the Member States of the European
Community, has issued EASA
Airworthiness Directive 2009–0130,
dated June 23, 2009 (referred to after
this as ‘‘the MCAI’’), to correct an unsafe
condition for the specified products.
The MCAI states:
Following successive ECAM [electronic
centralized aircraft monitoring] warnings
PO 00000
Frm 00023
Fmt 4700
Sfmt 4700
19207
during the approach phase, just after the
landing gear extension sequence and an
uneventful landing, the maintenance
inspection on an Airbus A340 has revealed
a hydraulic leak that was caused by the
failure of the Yellow high pressure (HP)
hydraulic pipe supplying the back-up Nose
Wheel Steering (NWS) which runs along the
lower part of the avionic bay from frame 17
to frame 20.
This leak resulted in the loss of the Yellow
hydraulic system and contamination of the
avionics bay with sprayed hydraulic fluid.
This condition, if not detected and
corrected, could result in an ingestion of
hydraulic fluid in the electrical connectors,
which could generate an arcing phenomenon
and, if sufficient energy is provided by the
arcing, lead to an ignition source, which
would be an unsafe condition.
This AD requires the repetitive [detailed]
inspection [for damage (e.g., chafing)] of the
Yellow HP hydraulic line from frame 17 to
the elbow connection near frame 20, the
application of the associated corrective
actions, as necessary, and the repetitive
performance of a bleeding of the NWS system
to verify the correct installation and
condition of the HP hydraulic line.
Required actions also include a detailed
inspection for missing or damaged Pclamps including their grommets.
Corrective actions include replacing
damaged or missing P-clamp grommets
and replacing P-clamps. If any P-clamp
grommet is found missing or damaged,
inspecting the hydraulic pipe under
damaged P-clamps for chafing is
required. You may obtain further
information by examining the MCAI in
the AD docket.
Relevant Service Information
Airbus has issued All Operators Telex
A340–29A5014, dated October 14, 2008.
The actions described in this service
information are intended to correct the
unsafe condition identified in the
MCAI.
FAA’s Determination and Requirements
of This 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 the State of
Design Authority, we have been notified
of the unsafe condition described in the
MCAI and service information
referenced above. We are issuing this
AD because we evaluated all pertinent
information and determined the unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
There are no products of this type
currently registered in the United States.
However, this rule is necessary to
ensure that the described unsafe
condition is addressed if any of these
E:\FR\FM\14APR1.SGM
14APR1
]]>Agencies
[Federal Register Volume 75, Number 71 (Wednesday, April 14, 2010)]
[Rules and Regulations]
[Pages 19203-19207]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2010-7801]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-1068; Directorate Identifier 2009-NM-042-AD;
Amendment 39-16258; AD 2010-08-03]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Model CL-600-2B19
(Regional Jet Series 100 & 440) Airplanes
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:
The heating capability of several Angle Of Attack (AOA)
transducer heating elements removed from in-service aircraft have
been found to be below the minimum requirement. Also, it was
discovered that a large number of AOA transducers repaired in an
approved maintenance facility were not calibrated accurately.
Inaccurate calibration of the AOA transducer and/or degraded AOA
transducer heating elements can result in early or late activation
of the stall warning, stick shaker and stick pusher by the Stall
Protection Computer (SPC).
* * * * *
The unsafe condition is reduced controllability of the airplane. We are
issuing this AD to require actions to
[[Page 19204]]
correct the unsafe condition on these products.
DATES: This AD becomes effective May 19, 2010.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 19,
2010.
The Director of the Federal Register previously approved the
incorporation by reference of a certain publication listed in this AD
as of March 9, 2009 (74 FR 7789, February 20, 2009).
ADDRESSES: You may examine the AD docket on the Internet at https://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: Wing Chan, Aerospace Engineer, Systems
and Flight Test Branch, ANE-172, FAA, New York Aircraft Certification
Office, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590;
telephone (516) 228-7311; 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 November 18, 2009
(74 FR 59480), and proposed to supersede AD 2009-04-11, Amendment 39-
15817 (74 FR 7789, February 20, 2009). That NPRM proposed to correct an
unsafe condition for the specified products.
The mandatory continued airworthiness information (MCAI) states:
The heating capability of several Angle Of Attack (AOA)
transducer heating elements removed from in-service aircraft have
been found to be below the minimum requirement. Also, it was
discovered that a large number of AOA transducers repaired in an
approved maintenance facility were not calibrated accurately.
Inaccurate calibration of the AOA transducer and/or degraded AOA
transducer heating elements can result in early or late activation
of the stall warning, stick shaker and stick pusher by the Stall
Protection Computer (SPC).
This [Canadian] directive mandates a periodic inspection of the
inrush current to verify the AOA heating capability and replacement
of the inaccurately calibrated AOA transducers.
The unsafe condition is reduced controllability of the airplane. This
AD retains the requirements of AD 2009-04-11 and also requires a one-
time inspection of certain angle of attack (AOA) transducers,
replacement of transducers having certain serial numbers, repetitive
inspections of the inrush current for certain AOA transducers, and
replacement of inaccurately calibrated AOA transducers. You may obtain
further information by examining the MCAI in the AD docket.
Comments
We gave the public the opportunity to participate in developing
this AD. We considered the comment received.
Request To Allow Records Check
Mesa Airlines requests that we allow the use of a records check in
lieu of the inspection for serial numbers specified in paragraph (g)(2)
of the NPRM. Mesa Airlines points out that serial numbers could already
be known to operators after compliance with AD 2009-04-11. Mesa
Airlines also notes that AOA transducers are delicate instruments that
could be damaged by removal for the purpose of confirming serial
numbers.
For the reasons provided by Mesa Airlines, we agree to allow
operators to perform a review of the airplane maintenance records in
lieu of performing an inspection of the AOA transducer to determine the
serial number, if the serial number can be conclusively determined from
that review. We have revised paragraph (g)(2) of this AD accordingly.
Explanation of Change to Applicability
We have revised the applicability of this AD to identify model
designations as published in the most recent type certificate data
sheet for the affected models.
Conclusion
We reviewed the available data, including the comment 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 613 products of U.S.
registry.
The actions that are required by AD 2009-04-11 and retained in this
AD take about 1 work-hour 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 $85 per product.
We estimate that it will take about 1 work-hour per product to
comply with the new basic requirements of this AD. The average labor
rate is $85 per work-hour. Based on these figures, we estimate the cost
of this AD to the U.S. operators to be $52,105, or $85 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,
[[Page 19205]]
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 https://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 39-15817 (74 FR
7789, February 20, 2009) and adding the following new AD:
2010-08-03 Bombardier, Inc: Amendment 39-16258. Docket No. FAA-2009-
1068; Directorate Identifier 2009-NM-042-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective May 19,
2010.
Affected ADs
(b) This AD supersedes AD 2009-04-11, Amendment 39-15817.
Applicability
(c) This AD applies to Bombardier, Inc. Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes, serial numbers 7003 and
subsequent, certificated in any category, that are equipped with
Thales angle of attack (AOA) transducers having part number (P/N)
45150340 or C16258AA.
Subject
(d) Air Transport Association (ATA) of America Code 27: Flight
controls.
Reason
(e) The mandatory continued airworthiness information (MCAI)
states:
The heating capability of several Angle Of Attack (AOA)
transducer heating elements removed from in-service aircraft have
been found to be below the minimum requirement. Also, it was
discovered that a large number of AOA transducers repaired in an
approved maintenance facility were not calibrated accurately.
Inaccurate calibration of the AOA transducer and/or degraded AOA
transducer heating elements can result in early or late activation
of the stall warning, stick shaker and stick pusher by the Stall
Protection Computer (SPC).
This [Canadian] directive mandates a periodic inspection of the
inrush current to verify the AOA heating capability and replacement
of the inaccurately calibrated AOA transducers.
The unsafe condition is reduced controllability of the airplane.
This AD retains the requirements of AD 2009-04-11 and also requires
a one-time inspection of certain AOA transducers, replacement of
transducers having certain serial numbers, repetitive inspections of
the inrush current for certain AOA transducers, and replacement of
inaccurately calibrated AOA transducers.
Restatement of Requirements of AD 2009-04-11, With No Changes
(f) Unless already done, do the following actions:
(1) For airplanes equipped with a transducer having accumulated
more than 7,500 total flight hours as of March 9, 2009 (the
effective date of AD 2009-04-11): Within 250 flight hours after
March 9, 2009, measure the inrush current of both AOA transducers in
accordance with Part A of the Accomplishment Instructions of
Bombardier Service Bulletin 601R-27-153, Revision A, dated December
16, 2008.
(i) If both AOA transducers are found to have an inrush current
of 1.60 amps or more, repeat the measurement thereafter at intervals
not to exceed the applicable interval specified in Table 1 of this
AD. Do the measurement in accordance with Part A of the
Accomplishment Instructions of Bombardier Service Bulletin 601R-27-
153, Revision A, dated December 16, 2008.
Table 1--Repetitive Measurement Intervals
------------------------------------------------------------------------
If the last inrush current measurement
of the serviceable AOA transducer is-- Then repeat the measurement--
------------------------------------------------------------------------
More than or equal to 1.90 amps........ Within 2,000 flight hours after
the last measurement.
More than or equal to 1.80 amps but Within 1,500 flight hours after
less than 1.90 amps. the last measurement.
More than or equal to 1.70 amps but Within 1,000 flight hours after
less than 1.80 amps. the last measurement.
More than or equal to 1.60 amps but Within 500 flight hours after
less than 1.70 amps. the last measurement.
------------------------------------------------------------------------
(ii) If one AOA transducer is found to have an inrush current
below 1.60 amps, and the other AOA transducer is found to have an
inrush current of 1.60 amps or more: Do the actions required by
paragraphs (f)(1)(ii)(A) and (f)(1)(ii)(B) of this AD.
(A) For the AOA transducer having an inrush current of 1.60 amps
or more: Repeat the measurement thereafter at intervals not to
exceed the applicable interval specified in Table 1 of this AD. Do
the measurement in accordance with Part A of the Accomplishment
Instructions of Bombardier Service Bulletin 601R-27-153, Revision A,
dated December 16, 2008.
(B) For the AOA transducer having an inrush current below 1.60
amps (``degraded'' transducer): Within 1,000 flight hours after
March 9, 2009, replace that transducer in accordance with Part C of
the Accomplishment Instructions of Bombardier Service Bulletin 601R-
27-153, Revision A, dated December 16, 2008. At the applicable time
specified in Table 1 of this AD if the degraded transducer was
replaced with a serviceable transducer, or within 2,000 flight hours
after replacement if the degraded transducer was replaced with a new
transducer, do the measurement for that replacement transducer and
repeat the measurements thereafter at intervals not to exceed the
applicable interval specified in Table 1 of this AD. Do the
measurement in accordance with Part A of the Accomplishment
Instructions of Bombardier Service Bulletin 601R-27-153, Revision A,
dated December 16, 2008.
(iii) If both AOA transducers are found to have an inrush
current below 1.60 amps, do the action specified in paragraph
(f)(1)(iii)(A) or (f)(1)(iii)(B) of this AD.
(A) Before further flight, replace one of the degraded AOA
transducers with a new or serviceable transducer; and replace the
other degraded transducer with a new or
[[Page 19206]]
serviceable transducer within 1,000 flight hours after the
measurement required by paragraph (f)(1) of this AD; in accordance
with Part C of the Accomplishment Instructions of Bombardier Service
Bulletin 601R-27-153, Revision A, dated December 16, 2008. At the
applicable time specified in Table 1 of this AD, if the degraded
transducer was replaced with a serviceable transducer; or within
2,000 flight hours after replacement if the degraded transducer was
replaced with a new transducer: Do the measurement for that
replacement transducer and repeat the measurement thereafter at
intervals not to exceed the applicable interval specified in Table 1
of this AD. Do the measurements in accordance with Part A of the
Accomplishment Instructions of Bombardier Service Bulletin 601R-27-
153, Revision A, dated December 16, 2008.
(B) Within 1,000 flight hours after the measurement required by
paragraph (f) of this AD, replace both degraded AOA transducers with
new or serviceable transducers in accordance with Part C of the
Accomplishment Instructions of Bombardier Service Bulletin 601R-27-
153, Revision A, dated December 16, 2008. Until the replacement is
done, dispatch with two degraded AOA transducers is allowed,
provided that the applicable Limitations section of the airplane
flight manual (AFM) is revised to include the following statement or
a copy of this AD is inserted into the applicable Limitations
section of the AFM.
``Dispatch is allowed if:
(a) Operations are not conducted in visible moisture (including
standing water and slush) in any form,
(b) Operations are not conducted in known or forecast icing
conditions,
(c) Both Ice Detection Systems are operative; and,
(d) Operations are conducted in day VMC conditions only.''
After the replacement has been accomplished, the statement or the
copy of this AD may be removed from the AFM. At the applicable time
specified in Table 1 of this AD, if the degraded transducer was
replaced with a serviceable transducer; or within 2,000 flight hours
after replacement with a new transducer: Do the measurement for that
replacement transducer and repeat the measurement thereafter at
intervals not to exceed the applicable interval specified in Table 1
of this AD. Do the measurement in accordance with Part A of
Accomplishment Instructions of Bombardier Service Bulletin 601R-27-
153, Revision A, dated December 16, 2008.
(2) If, during any repetitive measurement required by paragraphs
(f)(1)(i), (f)(1)(ii), and (f)(1)(iii) of this AD, any AOA
transducer is found to have an inrush current below 1.60 amps,
before further flight, replace that transducer in accordance with
Part C of the Accomplishment Instructions of Bombardier Service
Bulletin 601R-27-153, Revision A, dated December 16, 2008. At the
applicable time specified in Table 1 of this AD, if the degraded
transducer was replaced with a serviceable transducer; or within
2,000 flight hours after replacement if the degraded transducer was
replaced with a new transducer: Do the measurement for that
replacement transducer as specified in paragraph (f)(1)(ii)(B) of
this AD and repeat the measurement thereafter at intervals not to
exceed the applicable interval specified in Table 1 of this AD.
(3) Actions done before March 9, 2009, in accordance with
Bombardier Service Bulletin 601R-27-153, dated October 17, 2008, are
acceptable for compliance with the corresponding requirements of
paragraphs (f)(1) and (f)(2) of this AD.
New Requirements of This AD: Actions and Compliance
(g) Unless already done, do the following actions.
(1) For airplanes equipped with a transducer having accumulated
7,500 or fewer flight hours as of March 9, 2009, except transducers
that have been measured in accordance with paragraph (f)(1) of this
AD: Do the actions specified in paragraph (f)(1) of this AD before
the transducer accumulates 7,500 total flight hours, or within 500
flight hours after the effective date of this AD, whichever occurs
later.
(2) Within 900 flight hours after the effective date of this AD,
inspect AOA transducers having P/N 45150340 or C16258AA to determine
the serial numbers. A review of airplane maintenance records is
acceptable in lieu of this inspection if the serial number of the
AOA transducer can be conclusively determined from that review.
(i) If the serial number is not identified in paragraph 1.A.(1)
of Bombardier Service Bulletin 601R-27-154, dated December 1, 2008,
no further action is required by this paragraph.
(ii) If the part number and serial number are identified in one
of the tables in paragraph 1.A.(1) of Bombardier Service Bulletin
601R-27-154, dated December 1, 2008, and have the suffix ``A,'' no
further action is required by this paragraph.
Note 1: Bombardier Service Bulletin 601R-27-154, dated December
1, 2008, references Thales Avionics Service Bulletins 45150340-31-
004 and C16258A-27-002, both dated November 28, 2008, as additional
sources of guidance for part and serial number information.
(iii) If the part number and serial number are identified in a
table in paragraph 1.A.(1) of Bombardier Service Bulletin 601R-27-
154, dated December 1, 2008, before further flight, replace the AOA
transducer with a new or serviceable transducer, in accordance with
the Accomplishment Instructions of Bombardier Service Bulletin 601R-
27-154, dated December 1, 2008.
(3) As of the effective date of this AD, no person may install a
replacement AOA transducer having P/N 45150340 or P/N C16258AA with
a serial number identified in paragraph 1.A.(1) of Bombardier
Service Bulletin 601R-27-154, dated December 1, 2008, unless the
serial number has the suffix ``A.''
FAA AD Differences
Note 2: This AD differs from the MCAI and/or service
information as follows: No differences.
Other FAA AD Provisions
(h) 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.
(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
(i) Refer to MCAI Canadian Airworthiness Directive CF-2008-35,
dated December 22, 2008; Bombardier Service Bulletin 601R-27-154,
dated December 1, 2008; and Bombardier Service Bulletin 601R-27-153,
Revision A, dated December 16, 2008; for related information.
Material Incorporated by Reference
(j) You must use Bombardier Service Bulletin 601R-27-154, dated
December 1, 2008; and Bombardier Service Bulletin 601R-27-153,
Revision A, dated December 16, 2008; as applicable; 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 Bombardier Service Bulletin 601R-27-
154, dated December 1, 2008, 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 Bombardier Service Bulletin 601R-27-
153, Revision A, dated December 16, 2008, on March 9, 2009 (74 FR
7789, February 20, 2009).
(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 https://www.bombardier.com.
(4) You may review copies of the service information at the FAA,
Transport Airplane
[[Page 19207]]
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: https://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
Issued in Renton, Washington, on March 25, 2010.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2010-7801 Filed 4-13-10; 8:45 am]
BILLING CODE 4910-13-P
