AD 2010-14-16 Airworthiness Directives; Bombardier, Inc. Model DHC-8-400, -401, and -402 Airplanes

Models named: DHC-8-400, -401, -402. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -402 airplanes, certificated in any category; serial numbers 4001, 4003, 4004, 4006, and 4008 through 4184 inclusive.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. RESTATEMENT OF REQUIREMENTS OF AD 2007-12-03 AIRPLANE FLIGHT MANUAL (AFM) REVISION (g) Within 14 days after July 10, 2007 (the effective date of AD 2007-12-03, Amendment 39-15081, which was superseded by AD 2008-17-06), revise the Limitations section of the applicable AFM to include the information in the applicable Bombardier temporary amendment specified in Table 1 of this AD, as specified in the temporary amendment. These temporary amendments introduce procedures for pulling the “HYD PWR XFER” circuit breaker in the event of the loss of all hydraulic fluid in the No. 1 or No. 2 hydraulic system. Operate the airplane according to the limitations and procedures in the applicable temporary amendment. Table 1—AFM Temporary Amendments For model— Use Bombardier temporary amendment— Issue— Dated— To Bombardier Dash 8 Q400 Airplane Flight Manual— DHC-8-400 airplanes 13 1 July 14, 2005 PSM 1-84-1A. DHC-8-401 airplanes 13 1 July 14, 2005 PSM 1-84-1A. DHC-8-402 airplanes 13 1 July 14, 2005 PSM 1-84-1A. Note 1: This may be done by inserting a copy of the applicable temporary amendment into the applicable AFM. When the applicable temporary amendment has been included in general revisions of the AFM, the general revisions may be inserted into the AFM, provided the relevant information in the general revisions is identical to that in the temporary amendment. Restatement of Requirements of AD 2008-17-06: AFM Revision (h) Within 14 days after September 2, 2008 (the effective date of AD 2008-17-06), revise the applicable AFM Normal and Abnormal Procedures section to include the information in the applicable Bombardier temporary amendment specified in Table 2 of this AD, as specified in the temporary amendment. These temporary amendments introduce additional procedures for ensuring that the “PTU CNTRL” switch is Normal, the “PTU CNTRL ON” advisory light is out, and the “HYD PWR XFER” circuit breaker is pulled in the event of the illumination of the “#2 HYD ISO VALVE” caution light. After accomplishing the AFM revision, the AFM limitation required by paragraph (g) in this AD may be removed from the AFM. Table 2—AFM Temporary Amendments For model— Use Bombardier temporary amendment— Issue— Dated— To Bombardier Dash 8 Q400 Airplane Flight Manual— DHC-8-400 airplanes 13 3 June 9, 2008 PSM 1-84-1A. DHC-8-401 airplanes 13 3 June 9, 2008 PSM 1-84-1A. DHC-8-402 airplanes 13 3 June 9, 2008 PSM 1-84-1A. New Requirements of This AD: Actions (i) Within 6,000 flight hours after the effective date of this AD, modify the PTU control logic, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84-29-22, Revision A, dated February 24, 2009. Doing this modification terminates the requirements of paragraphs (g) and (h) of this AD, and after the modification has been done, the AFM limitation required by paragraphs (g) and (h) of this AD may be removed from the AFM. (j) Modifying the PTU control logic is also acceptable for compliance with the requirements of paragraph (i) of this AD if done before the effective date of this AD, in accordance with Bombardier Service Bulletin 84-29-22, dated December 5, 2008. FAA AD Differences Note 2: This AD differs from the MCAI and/or service information as follows: No differences. Other FAA AD Provisions (k) 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 (l) Refer to MCAI Canadian Airworthiness Directive CF-2006-08R1, dated August 31, 2009; the Bombardier temporary amendments specified in Tables 1 and 2; and Bombardier Service Bulletin 84-29-22, Revision A, dated February 24, 2009; for related information. Material Incorporated by Reference (m) You must use Bombardier Service Bulletin 84-29-22, Revision A, dated February 24, 2009, and the applicable temporary amendment identified in Table 3 of this AD; as applicable; to do the actions required by this AD, unless the AD specifies otherwise. Table 3—All Temporary Amendments Incorporated by Reference Bombardier temporary amendment— Issue— Dated— To Bombardier Dash 8 Q400 Airplane Flight Manual— 13 1 July 14, 2005 Model 400 PSM 1-84-1A. 13 1 July 14, 2005 Model 401 PSM 1-84-1A. 13 1 July 14, 2005 Model 402 PSM 1-84-1A. 13 3 June 9, 2008 Model 400 PSM 1-84-1A. 13 3 June 9, 2008 Model 401 PSM 1-84-1A. 13 3 June 9, 2008 Model 402 PSM 1-84-1A. (1) The Director of the Federal Register approved the incorporation by reference of Bombardier Service Bulletin 84-29-22, Revision A, dated February 24, 2009, 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 the service information contained in Table 4 of this AD on September 2, 2008 (73 FR 47818, August 15, 2008). Table 4—Material Previously Incorporated by Reference in AD 2008-17-06 Bombardier temporary amendment— Issue— Dated— To Bombardier Dash 8 Q400 Airplane Flight Manual— 13 3 June 9, 2008 Model 400 PSM 1-84-1A. 13 3 June 9, 2008 Model 401 PSM 1-84-1A. 13 3 June 9, 2008 Model 402 PSM 1-84-1A. (3) On July 10, 2007 (72 FR 30968, June 5, 2007), the Director of the Federal Register approved the incorporation by reference of the temporary amendments identified in Table 5 of this AD. Table 5—Material Previously Incorporated by Reference in AD 2007-12-03 Bombardier temporary amendment— Issue— Dated— To Bombardier Dash 8 Q400 Airplane Flight Manual— 13 1 July 14, 2005 Model 400 PSM 1-84-1A. 13 1 July 14, 2005 Model 401 PSM 1-84-1A. 13 1 July 14, 2005 Model 402 PSM 1-84-1A. (4) For service information identified in this AD, contact Bombardier, Inc., 400 Côte-Vertu Road West, Dorval, Québec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-7401; e-mail thd.qseries@aero.bombardier.com; Internet http://www.bombardier.com. (5) 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. (6) 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. Issued in Renton, Washington, on June 25, 2010. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2010-16434 Filed 7-12-10; 8:45 am] BILLING CODE 4910-13-P