2010-04-12 Bombardier, Inc.: Amendment 39-16205. Docket No. FAA- 2009-0712; Directorate Identifier 2007-NM-152-AD.
Effective Date
(a) This airworthiness directive (AD) is effective April 8, 2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc. Model DHC-8-101, DHC-8- 102, DHC-8-103, DHC-8-106, DHC-8-201, DHC-8-202, DHC-8-301, DHC-8- 311, and DHC-8-315 airplanes, certificated in any category; serial numbers 003 and subsequent.
Subject
(d) Air Transport Association (ATA) of America Codes 32: Landing Gear, 51: Standard Practices/Structures; 52: Doors; 53: Fuselage; 54: Nacelles/Pylons; 55: Stabilizers; and 57: Wings.
Unsafe Condition
(e) This AD results from the determination that, as airplanes age, they are more likely to exhibit indications of corrosion. We are issuing this AD to prevent structural failure of the airplane due to corrosion.
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.
Manual References
(g) This AD refers to the manuals listed in Table 1 of this AD.
Table 1--Applicable Manuals
Bombardier Model
Manual
(1) DHC-8-101, -102, -103, and -106 airplanes
Part 1, Section 3, Structural Inspection Program, of the Bombardier de Havilland Dash 8 Maintenance Program Maintenance Review Board Report Dash 8 Series 100 Program Support Manual (PSM) 1-8-7, Revision 22, dated November 1, 2008.
(2) DHC-8-201 and DHC-8-202 airplanes
Part 1, Section 3, Structural Inspection Program, of the Bombardier de Havilland Dash 8 Maintenance Program Maintenance Review Board Report Dash 8 Series 200 PSM 1-82-7, Revision 13, dated November 1, 2008.
(3) Model DHC-8-301, DHC-8-311, and DHC-8-315 airplanes
Part 1, Section 3, Structural Inspection Program, of the Bombardier de Havilland Dash 8 Maintenance Program Maintenance Review Board Report Dash 8 Series 300, PSM 1-83-7, Revision 22, dated November 1, 2008.
Inspections
(h) At the later of the times specified in paragraphs (h)(1) and (h)(2) of this AD, do each of the Environmental Damage/Corrosion Protection and Control Program (ED/CPCP) inspections identified with both "ED'' and "CPCP,'' or with only "ED,'' including re- protection tasks, as applicable, which are found in the "Type of Damage'' column of the applicable manual found in Table 1 of this AD, in accordance with the applicable manual identified in Table 1 of this AD. Except as provided by paragraph (i) of this AD, repeat each task thereafter at intervals not to exceed the compliance time specified in the "Repeat'' column of the applicable manual identified in Table 1 of this AD.
(1) Within 24 months after the effective date of this AD.
(2) At the compliance time specified in the "Threshold'' column of the applicable manual identified in Table 1 of this AD since the date ofissuance of the original Canadian airworthiness certificate or the date of issuance of the original Canadian export certificate of airworthiness. If there is no value in the "Threshold'' column, use the time specified in the "Repeat'' column.
(i) After accomplishment of each initial ED/CPCP and ED task required by paragraph (h) of this AD, the FAA may approve the incorporation into the operator's approved maintenance/inspection program of the CPCP specified in the applicable manual identified in Table 1 of this AD; or the equivalent program that is approved in accordance with this AD. In all cases, the initial corrosion task for each airplane area must be completed by the initial compliance time specified in paragraph (h) of this AD.
(1) Any operator complying with paragraph (i) of this AD may use an alternative recordkeeping method to that otherwise required by section 91.417 ("Maintenance records'') or section 121.380 ("Maintenance recording requirements'') of the Federal Aviation Regulations (14 CFR 91.417 or 14 CFR 121.380, respectively) for the actions required by this AD, provided that the recordkeeping method is approved by the FAA and is included in a revision to the maintenance/inspection program. For the purposes of this paragraph, "the FAA'' is defined as the cognizant Principal Maintenance Inspector (PMI) for operators that are assigned a PMI (i.e., part 121, 125, and 135 operators), and the cognizant Flight Standards District Office for other operators (i.e., part 91 operators).
(2) After the initial accomplishment of the ED/CPCP and ED tasks required by paragraph (h) of this AD, any extension of the repetitive intervals specified in the manual must be approved by the Manager, New York Aircraft Certification Office (ACO), FAA.
Corrective Actions
(j) If any corrosion is found during accomplishment of any action required by paragraph (h) of this AD: Before further flight, rework, repair, or replace, as applicable, in accordance with a method approved by either the Manager, New York ACO, FAA; or Transport Canada Civil Aviation (TCCA) (or its delegated agent).
Reporting Requirements for Level 3 Corrosion Findings
(k) If any Level 3 corrosion, as defined in Part 1 of the Bombardier (de Havilland) DHC-6 Twin Otter, Dash 7 & Dash 8 Corrosion Prevention and Control Manual, PSM 1-GEN-5, Revision 3, dated November 30, 1998, is found during the accomplishment of any action required by this AD, do paragraphs (k)(1), (k)(2), and (k)(3) of 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.
(1) Within 3 days after the finding of Level 3 corrosion, report findings to the Manager, New York ACO, FAA, in accordance with the Bombardier (de Havilland) DHC-6 Twin Otter, Dash 7 & Dash 8 Corrosion Prevention and Control Manual, PSM 1-GEN-5, Revision 3,dated November 30, 1998.
(2) Within 10 days after the finding of Level 3 corrosion, either submit a plan to the FAA to identify a schedule for accomplishing the applicable CPCP task on the remainder of the airplanes in the operator's fleet that are subject to this AD, or provide data substantiating that the Level 3 corrosion that was found is an isolated case. The FAA may impose a schedule other than that proposed in the plan upon finding that a change to the schedule is needed to ensure that any other Level 3 corrosion is detected in a timely manner. For the purposes of this paragraph, "the FAA'' is defined as the cognizant Principal Maintenance Inspector (PMI) for operators that are assigned a PMI (i.e., part 121, 125, and 135 operators), and the cognizant Flight Standards District Office for other operators (i.e., part 91 operators).
(3) Within the time schedule approved in accordance with paragraph (k)(2) of this AD, accomplish the applicable task on the remainder of the airplanes in the operator's fleet that are subject to this AD.
Limiting Future Corrosion Findings
(l) If corrosion findings that exceed Level 1 are found in any area during any repeat of any CPCP task after the initial accomplishment required by paragraph (h) of this AD: Within 60 days after such finding, implement a means approved by the FAA to reduce future findings of corrosion in that area to Level 1 or better. For the purposes of this paragraph, "the FAA'' is defined as the cognizant PMI for operators that are assigned a PMI (i.e., part 121, 125, and 135 operators), and the cognizant Flight Standards District Office for other operators (i.e., part 91 operators).
Scheduling Corrosion Tasks for Transferred Airplanes
(m) Before any airplane subject to this AD is transferred and placed into service by an operator: Establish a schedule for accomplishing the CPCP tasks required by this AD in accordance with paragraph (m)(1) or (m)(2) of this AD, as applicable.
(1) Forairplanes on which the CPCP tasks required by this AD have been accomplished previously at the schedule established by this AD: Perform the first CPCP task in each area in accordance with the previous operator's schedule, or in accordance with the new operator's schedule, whichever results in an earlier accomplishment of that CPCP task. After the initial accomplishment of each CPCP task in each area as required by this paragraph, repeat each CPCP task in accordance with the new operator's schedule.
(2) For airplanes on which the CPCP tasks required by this AD have not been accomplished previously, or have not been accomplished at the schedule established by this AD: The new operator must perform each initial CPCP task in each area before further flight or in accordance with a schedule approved by the FAA. For the purposes of this paragraph, "the FAA'' is defined as the cognizant Principal Maintenance Inspector (PMI) for operators that are assigned a PMI (i.e., part 121, 125, and 135 operators), and the cognizant Flight Standards District Office for other operators (i.e., part 91 operators).
Alternative Methods of Compliance (AMOCs)
(n)(1) The Manager, New York 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.
(2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. 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.
Related Information
(o) Canadian airworthiness directive CF-2007-06, dated April 10, 2007, also addresses the subject of this AD.
Material Incorporated by Reference
(p) You must use the service information contained in Table 2 of this AD, as applicable, to do the actions required by this AD, unless the AD specifies otherwise.
Table 2--Material Incorporated by Reference
Document
Revision
Date
Part 1, Section 3, Structural Inspection Program, of the Bombardier de Havilland Dash 8 Maintenance Program Maintenance Review Board Report Dash 8 Series 100 Program Support Manual (PSM) 1-8-7
22
November 1, 2008
Part 1, Section 3, Structural Inspection Program, of the Bombardier de Havilland Dash 8 Maintenance Program Maintenance Review Board Report Series 200 PSM 1-82-7
13
November 1, 2008
Part 1, Section 3, Structural Inspection Program, of the Bombardier de Havilland Dash 8 Maintenance Program Maintenance Review Board Report Dash 8 Series 300, PSM 1-83-7
22
November 1, 2008
Bombardier (de Havilland) DHC-6 Twin Otter, Dash 7 & Dash 8 Corrosion Prevention and Control Manual, PSM 1-GEN-5
3
November 30, 1998
Bombardier de Havilland Dash 8 Maintenance Program Maintenance Review Board Report Dash 8 Series 100 PSM 1-8-7, Revision 22, dated November 1, 2008, contains the following effective pages:
List of Effective Pages
Page Title/Description
Page Number(s)
Revision Number
Date Shown on Page(s)
Title Page
None shown
22
November 1, 2008
List of Effective Pages
1-4
None shown*
November 1, 2008
Log of Revisions
1-18
None shown*
November 1, 2008
Record of Revisions
1-2
22
November 1, 2008
Contents
1-4
None shown*
November 1, 2008
Section 3
Subject 3-0
1-4
None shown*
November 1, 2008
Subject 3-32
1-2
None shown*
November 1, 2008
Subject 3-52
1-2
None shown*
November 1, 2008
Subject 3-53
1-16
None shown*
November 1, 2008
Subject 3-54
1-4
None shown*
November1, 2008
Subject 3-55
1-8
None shown*
November 1, 2008
Subject 3-57
1-12
None shown*
November 1, 2008
Bombardier de Havilland Dash 8 Maintenance Program Maintenance Review Board Report Dash 8 Series 200 PSM 1-82-7, Revision 13, dated November 1, 2008, contains the following effective pages:
List of Effective Pages
Page Title/ Description
Page Number(s)
Revision Number
Date Shown on Page(s)
Title Page
None shown
13
November 1, 2008
List of Effective Pages
1-4
None shown*
November 1, 2008
Log of Revisions
1-8
None shown*
November 1, 2008
Record of Revisions
1-2
13
November 1, 2008
Contents
1-4
None shown*
November 1, 2008
Section 3
Subject 3-0
1-4
None shown*
November 1, 2008
Subject 3-32
1-2
None shown*
November 1, 2008
Subject 3-52
1-2
None shown*
November 1, 2008
Subject 3-53
1-16
None shown*
November 1, 2008
Subject 3-54
1-4
None shown*
November 1, 2008
Subject 3-55
1-6
None shown*
November 1, 2008
Subject 3-57
1-12
None shown*
November 1, 2008
Bombardier de Havilland Dash 8 Maintenance Program Maintenance Review Board Report Dash 8 Series 300 PSM 1-83-7, Revision 22, dated November 1, 2008, contains the following effective pages:
List of Effective Pages
Page Title/ Description
Page Number(s)
Revision Number
Date Shown on Page(s)
Title Page
None shown
22
November 1, 2008
List of Effective Pages
1-4
None shown*
November 1, 2008
Log of Revisions
1-18
None shown*
November 1, 2008
Record of Revisions
1-2
22
November 1, 2008
Contents
1-4
None shown*
November 1, 2008
Section 3
Subject 3-0
1-4
None shown*
November 1, 2008
Subject 3-32
1-2
None shown*
November 1, 2008
Subject 3-52
1-2
None shown*
November 1, 2008
Subject 3-53
1-18
None shown*
November 1, 2008
Subject 3-54
1-4
None shown*
November 1, 2008
Subject 3-55
1-8
None shown*
November 1, 2008
Subject 3-57
1-12
None shown*
November 1, 2008
(*Only the title page and Record of Revisions of these documents specify the revision level of these documents.)
Bombardier (de Havilland) DHC-6 Twin Otter, Dash 7 & Dash 8 Corrosion Prevention and Control Manual PSM 1-GEN-5, Part 1, Revision 3, dated November 30, 1998, contains the following effective pages:
List of Effective Pages
Page title/ description
Page number(s)
Revision number
Date shown on page(s)
Title Page
None shown
None shown*
November 8, 1993.
1
3
August 27, 1991.
Record of Revisions
2
None shown*
August 27, 1991.
Part 1 List of Effective Pages
1 2
None shown*
November 30, 1998.
Part 1 Table of Contents
1 4
None shown*
November 8, 1993.
Part 1 List of Illustrations
1 2
None shown*
November 8, 1993.
1
None shown*
November 8, 1993.
Part 1 List of Tables
2
None shown*
August 27, 1991.
1 2
None shown*
November 8, 1993.
Introduction
3 4
None shown*
November 5, 1992.
Chapter 1
1 1 through 1 10
None shown*
November 8, 1993.
Chapter 2
2 1 through 2 6
None shown*
November 8, 1993.
Chapter 3
3 1 through 3 4
None shown*
November 8, 1993.
Chapter 4
4 1 through 4 44
None shown*
November 8, 1993.
Chapter 5
5 1 through 5 48
None shown*
November 8, 1993.
6 1 through 6 8, 6 11 through 6 16
None shown*
August 27, 1991.
6 9
None shown*
November 8, 1993.
Chapter 6
6 10
None shown*
November 5, 1992.
Chapter 7
7 1 through 7 2
None shown*
November 8, 1993.
Chapter 8
8 1 through 8 4
None shown*
November 8, 1993.
Chapter 9
9 1 through 9 4
None shown*
November 30, 1998.
(*Only page 1 of the Record of Revisions of Bombardier (de Havilland) DHC-6 Twin Otter, Dash 7 & Dash 8 Corrosion Prevention and Control Manual PSM 1-GEN- 5, Part 1, Revision 3, contains the revision level of this document.)(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 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.qseries@aero.bombardier.com; Internet http:// www.bombardier.com.
(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 or 425-227-1152.
(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: http:// www.archives.gov/federal_register/code_of_federal_regulations/ ibr_locations.html.