[Federal Register: April 7, 2005 (Volume 70, Number 66)]
[Rules and Regulations]
[Page 17594-17596]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr07ap05-5]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-20222; Directorate Identifier 2004-NM-230-AD;
Amendment 39-14041; AD 2005-07-17]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model DHC-8-102, -103, -106,
-201, -202, -301, -311, and -315 Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Bombardier Model DHC-8-102, -103, -106, -201, -202, -301, -311,
and-315 airplanes. This AD requires revising the airplane flight manual
to include applicable procedures to follow when the flightcrew receives
abnormal indications of airspeed, altitude, or vertical airspeed. This
AD also requires modifying the static system. This AD is prompted by a
report of a leak in the static pressure system, which could result in
loss of the static systems and consequent erroneous data displayed on
the pilot's flight instruments. We are issuing this AD to advise the
flightcrew of applicable procedures in the event of abnormal
indications of airspeed, altitude, or vertical airspeed; and to prevent
leaks in the static system, which could result in the loss of critical
flight information that could result in reduced controllability of the
airplane or controlled flight into terrain.
DATES: This AD becomes effective May 12, 2005.
The incorporation by reference of a certain publication listed in
the AD is approved by the Director of the Federal Register as of May
12, 2005.
ADDRESSES: For service information identified in this AD, contact
Bombardier, Inc., Bombardier Regional Aircraft Division, 123 Garratt
Boulevard, Downsview, Ontario M3K 1Y5, Canada.
Docket: The AD docket contains the proposed AD, comments, and any
final disposition. You can examine the AD docket on the Internet at
http://dms.dot.gov, or in person at the Docket Management Facility
office between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the U.S.
Department of Transportation, 400 Seventh Street, SW., room PL-401,
Washington, DC. This docket number is FAA-2005-20222; the directorate
identifier for this docket is 2004-NM-230-AD.
FOR FURTHER INFORMATION CONTACT: Ezra Sasson, 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) 228-7320; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39
with an AD for certain Bombardier Model DHC-8-102, -103, -106, -201, -
202, -301, -311, and -315 airplanes. That action, published in the
Federal Register on February 1, 2005 (70 FR 5078), proposed to require
revising the airplane flight manual (AFM) to include applicable
procedures to follow when the flightcrew receives abnormal indications
of airspeed, altitude, or vertical airspeed. That action also proposed
to require modifying the static system.
Comments
We provided the public the opportunity to participate in the
development of this AD. No comments have been submitted on the proposed
AD or on the determination of the cost to the public.
Conclusion
We have carefully reviewed the available data and determined that
air safety and the public interest require adopting the AD as proposed.
Costs of Compliance
The following table provides the estimated costs for U.S. operators
to comply with this AD.
[[Page 17595]]
Estimated Costs
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Average Number of U.S.-
Action Work labor rate Parts Cost per registered Fleet cost
hours per hour airplane airplanes
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Revise AFM................................... 1 $65 None............................ $65 181 $11,765
Modify static system......................... 2 65 100-200......................... 230-330 181 41,630-59,730
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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 have 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 that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866;
(2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979); and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD. See the ADDRESSES section for a location to
examine the regulatory evaluation.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
2005-07-17 Bombardier, Inc. (Formerly de Havilland, Inc.): Amendment
39-14041. Docket No. FAA-2005-20222; Directorate Identifier 2004-NM-
230-AD.
Effective Date
(a) This AD becomes effective May 12, 2005.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model DHC-8-102, -103, -106, -
201, -202, -301, -311, and -315 airplanes, certificated in any
category; serial numbers 003 through 598 inclusive.
Unsafe Condition
(d) This AD was prompted by a report of a leak in the static
pressure system, which could result in loss of the static systems
and consequent erroneous data displayed on the pilot's flight
instruments. We are issuing this AD to advise the flightcrew of
applicable procedures in the event of abnormal indications of
airspeed, altitude, or vertical airspeed; and to prevent leaks in
the static system, which could result in the loss of critical flight
information that could result in reduced controllability of the
airplane or controlled flight into terrain.
Compliance
(e) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.
Revision to Airplane Flight Manual
(f) Within 10 days after the effective date of this AD, revise
the Normal and Abnormal Procedures sections of the applicable de
Havilland Dash 8 Flight Manual to include the following statement in
paragraph 4.11.1 of 4.11 Pitot--Static and Stall Warning System
Failures. This may be done by inserting a copy of this AD into the
applicable flight manual.
``4.11.1 ABNORMAL INDICATIONS OF AIRSPEED, ALTITUDE AND VERTICAL
AIRSPEED.
1. Appropriate STATIC SOURCE selector--ALTERNATE. If switching
the STATIC SOURCE selector to ALTERNATE does not correct the
abnormal indications:
2. Rely on the flight instruments on the opposite side and land
as soon as practicable.''
Note 1: When a statement identical to that in paragraph (f) of
this AD has been included in the general revisions of the applicable
flight manual, the general revisions may be inserted into the flight
manual, and the copy of this AD may be removed from the flight
manual.
Modification of the Static System
(g) For airplanes having serial numbers 003 through 590
inclusive: Within 24 months after the effective date of this AD,
modify the static system in accordance with Part A and Part C of the
Accomplishment Instructions of Bombardier Service Bulletin 8-34-221,
Revision `A,' dated September 15, 2003.
(h) For airplanes having serial numbers 591 through 598
inclusive: Within 24 months after the effective date of this AD,
modify the static system in accordance with Part B and Part C of the
Accomplishment Instructions of Bombardier Service Bulletin 8-34-221,
Revision `A,' dated September 15, 2003.
Modifications Done According to Previous Issue of Service Bulletin
(i) Modifications done before the effective date of this AD in
accordance with Bombardier Service Bulletin 8-34-221, dated May 27,
2003, are acceptable for compliance with the applicable
modifications specified in paragraphs (g) and (h) of this AD.
Alternative Methods of Compliance (AMOCs)
(j) The Manager, New York Aircraft Certification Office,
Transport Airplane Directorate, FAA, has the authority to approve
AMOCs for this AD, if requested in accordance with the procedures
found in 14 CFR 39.19.
Related Information
(k) Canadian airworthiness directive CF-2003-25, dated October
10, 2003, also addresses the subject of this AD.
Material Incorporated by Reference
(l) You must use Bombardier Service Bulletin 8-34-221, Revision
`A,' dated September 15, 2003, to perform the actions
[[Page 17596]]
that are required by this AD, unless the AD specifies otherwise. The
Director of the Federal Register approves the incorporation by
reference of this document in accordance with 5 U.S.C. 552(a) and 1
CFR part 51. To get copies of the service information, contact
Bombardier, Inc., Bombardier Regional Aircraft Division, 123 Garratt
Boulevard, Downsview, Ontario M3K 1Y5, Canada. To view the AD
docket, go to the Docket Management Facility, U.S. Department of
Transportation, 400 Seventh Street SW., room PL-401, Nassif
Building, Washington, DC. To review copies of the service
information, go to the National Archives and Records Administration
(NARA). For information on the availability of this material at the
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 March 24, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-6687 Filed 4-6-05; 8:45 am]
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