Federal Register: April 7, 2005 (Volume 70, Number 66)
DOCID: FR Doc 05-6687
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
CFR Citation: 14 CFR Part 39
Docket ID: [Docket No. FAA-2005-20222; Directorate Identifier 2004-NM-230-AD; Amendment 39-14041; AD 2005-07-17]
RIN ID: RIN 2120-AA64
ACTION: Airworthiness directives:
DOCUMENT ACTION: Final rule.
Airworthiness Directives; Bombardier Model DHC-8-102, -103, -106, -201, -202, -301, -311, and -315 Airplanes
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.
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier Model DHC8102, 103, 106, 201, 202, 301, 311, and315 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.
The FAA proposed to amend 14 CFR part 39 with an AD for certain Bombardier Model DHC8102, 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.
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.
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.
Estimated Costs Average Number of U.S. Action Work labor rate Parts Cost per registered Fleet cost hours per hour airplane airplanes Revise AFM................................... 1 $65 None............................ $65 181 $11,765 Modify static system......................... 2 65 100200......................... 230330 181 41,63059,730 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.
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
Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39AIRWORTHINESS DIRECTIVES
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD):
20050717 Bombardier, Inc. (Formerly de Havilland, Inc.): Amendment 3914041. Docket No. FAA200520222; Directorate Identifier 2004NM 230AD.
(a) This AD becomes effective May 12, 2005.
(c) This AD applies to Bombardier Model DHC8102, 103, 106, 201, 202, 301, 311, and 315 airplanes, certificated in any category; serial numbers 003 through 598 inclusive.
(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.
(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 PitotStatic 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 selectorALTERNATE. 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 834221, 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 834221, 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 834221, 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.
(k) Canadian airworthiness directive CF200325, dated October 10, 2003, also addresses the subject of this AD.
Material Incorporated by Reference
(l) You must use Bombardier Service Bulletin 834221, Revision `A,' dated September 15, 2003, to perform the actions
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 PL401, 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) 7416030, 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. 056687 Filed 4605; 8:45 am]
BILLING CODE 491013P
FOR FURTHER INFORMATION CONTACT
Ezra Sasson, Aerospace Engineer, Systems and Flight Test Branch, ANE172, FAA, New York Aircraft Certification Office, 1600 Stewart Avenue, suite 410, Westbury, New York 11590; telephone (516) 2287320; fax (516) 7945531.