2010-23-21: Fuel

2010-23-21 Viking Air Limited (Type Certificate Previously Held by Bombardier, Inc.): Amendment 39-16510. Docket No. FAA-2010-0699; Directorate Identifier 2009-NM-236-AD. Effective Date (a) This airworthiness directive (AD) becomes effective December 22, 2010. Affected ADs (b) None. Applicability (c) This AD applies to Viking Air Limited (Type Certificate previously held by Bombardier, Inc.) Model DHC-7-1, DHC-7-100, DHC- 7-101, DHC-7-102, and DHC-7-103 airplanes; certificated in any category. Subject (d) Air Transport Association (ATA) of America Code 28: Fuel. Reason (e) The mandatory continuing airworthiness information (MCAI) states: Viking Air Limited has completed a system safety review of the aircraft fuel system against fuel tank safety standards introduced in Chapter 525 of the Airworthiness Manual through Notice of Proposed Amendment (NPA) 2002-043. The identified non-compliances were then assessed using Transport Canada Policy Letter No. 525-001, to determine if mandatory corrective action is required. The assessment showed that supplemental maintenance tasks would be required to prevent potential ignition sources within the fuel system, which could result in a fuel tank explosion. * * * The corrective action is revising the Airworthiness Limitations Section of the Instructions for Continued Airworthiness to incorporate new limitations for fuel tank systems. 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) Within 60 days after the effective date of this AD, incorporate all the fuel system limitation (FSL) tasks as specified in the temporary revisions (TR) listed in Chapter 5 of the Viking Dash 7 Series 1/100 Aircraft Maintenance Manual (AMM), PSM 1-7-2; and incorporate Section 5-10-13, as specified in Viking Air Limited TR 5-106, dated December 15, 2008, to Chapter 5 of the Viking Dash 7 Series 100 Maintenance Manual PSM 1-7-2. Note 1: This may be done by inserting copies of the TRs identified in paragraph (g) of this AD in the AMM. When these TRs have been included in general revisions of the AMM, the general revisions may be inserted in the AMM, provided the relevant information in the general revision is identical to that in the TRs identified in paragraph (g) of this AD. (h) At the applicable time specified in paragraphs (h)(1), (h)(2), (h)(3), and (h)(4) of this AD, do the initial inspections in accordance with the applicable TR identified in Table 1 of this AD. (1) For Tasks FSL-01, FSL-02, FSL-03, FSL-04 and FSL-05: Inspect at the later of the times specified in paragraphs (h)(1)(i) and (h)(1)(ii) of this AD. (i) Prior to the accumulation of 18,000 total flight hours. (ii) Within 6,000 flight hours or within 36 months after the effective date of this AD, whichever occurs first. (2) For Task FSL-06: Inspect at the later of the times specified in paragraphs (h)(2)(i) and (h)(2)(ii) of this AD. (i) Prior to the accumulation of 40,000 total flight hours. (ii) Within 6,000 flight hours or within 36 months after the effective date of this AD, whichever occurs first. (3) For Task FSL-07: Within 1 month after the effective date of this AD. (4) For Task FSL-08: Inspect at the later of the times specified in paragraphs (h)(4)(i) and (h)(4)(ii) of this AD. (i) Prior to the accumulation of 4,000 total flight hours. (ii) Within 2,000 flight hours or within 12 months after the effective date of this AD, whichever occurs first. Table 1--Temporary Revisions - Task - Viking TR - Date - FSL-01 5-107 December 15, 2008 FSL-02 5-108 December 15, 2008 FSL-06 5-109 December 15, 2008 FSL-07 5-110 December 15, 2008 FSL-08 5-111 December 15, 2008 FSL-03 5-112 December 15, 2008 FSL-04 and FSL-05 5-113 December 15, 2008 FAA AD Differences Note 2: This AD differs from the MCAI and/or service information as follows: No differences. Other FAA AD Provisions (i) 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 obtaincorrective 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 (j) Refer to MCAI Canadian Airworthiness Directive CF-2009-15, dated April 17, 2009, and the TRs identified in Table 2 of this AD, for related information. Table 2--Related Service Information Viking TR - Dated - Chapter 5 of the - 5-106 December 15, 2008 Viking Dash 7 Series 1/100 AMM, PSM 1-7-2 5-107 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-108 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-109 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-110 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-111 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-112 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-113 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 Material Incorporated by Reference (k) You must use the service information contained in Table 3 of this AD to do the actions required by this AD, unless the AD specifies otherwise. Table 3--Material Incorporated by Reference Viking TR - Dated - Chapter 5 of the - 5-106 December 15, 2008 Viking Dash 7 Series 1/100 Airplane Maintenance Manual, PSM 1-7-2 5-107 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-108 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-109 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-110 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-111 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-112 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 5-113 December 15, 2008 Viking Dash 7 Series 100 Maintenance Manual, PSM 1-7-2 (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 Viking Air Limited, 9574 Hampden Road, Sidney, British Columbia, V8L 8V5, Canada; telephone 250-656-7227; fax 250-656-0673; e-mail technical.publications@vikingair.com; Internet http:// www.vikingair.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. (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.