AD 2005-13-35 Airworthiness Directives; Bombardier Model DHC-8-100, DHC-8-200, and DHC-8-300 Series Airplanes

Models named: DHC-8-100, DHC-8-200, DHC-8-300 series. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to all Bombardier Model DHC-8-100, DHC-8-200, and DHC-8-300 series airplanes; certificated in any category. Note 1: This AD requires revisions to certain operator maintenance documents to include new inspections. Compliance with these inspections is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered or repaired in the areas addressed by these inspections, the operator may not be able to accomplish the inspections described in the revision. In this situation, to comply with 14 CFR 91.403 (c), the operator must request approval for an alternative method of compliance in accordance with paragraph (l)(1) of this AD. The request should include a description of changes to the required inspections that will ensure the continued damage tolerance of the affected structure. The FAA has provided guidance for this determination in Advisory Circular (AC) 25-1529.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Requirements of AD 2000-02-13 Installation of Placard (f) Within 30 days after March 1, 2000 (the effective date of AD 2000-02-13), install a placard in a prominent location on the instrument panel of the cockpit that states: “Positioning of the power levers below the flight idle stop during flight is prohibited. Such positioning may lead to loss of airplane control, or may result in an engine overspeed condition and consequent loss of engine power.” Installation of System Preventing Excessive Lowering of Power Levers in Flight (g) Within 2 years after March 1, 2000, install a system that would prevent positioning the power levers below the flight idle stop during flight, in accordance with a method approved by the Manager, New York Aircraft Certification Office (ACO), FAA. Following accomplishment of that installation, the placard required by paragraph (f) of this AD may be removed. (h) In the event that the system required by paragraph (g) of this AD malfunctions, or if the use of an override (if installed) is necessary, the airplane may be operated for three days to a location where required maintenance/repair can be performed, provided the system required by paragraph (g) of this AD has been properly deactivated and placarded for flightcrew awareness, in accordance with the FAA-approved Master Minimum Equipment List (MMEL). New Requirements of This AD Operational Checks of the Beta Lockout System (i) For airplanes that have been modified in accordance with Bombardier Service Bulletin 8-76-24: Within 50 flight hours after the effective date of this AD, perform an operational check of the beta lockout system in accordance with the applicable de Havilland Dash 8 task card listed in Table 1 of this AD. Thereafter repeat the operational check at intervals specified in the applicable de Havilland temporary revision (TR) listed in Table 2 of this AD. Table 1.—Task Cards DHC-8 model de Havilland task card Date -101, -102, -103, and -106 airplanes Dash 8 Series 100 Maintenance Task Card 6120/10 November 21, 2003. -201 and -202 airplanes Dash 8 Series 200 Maintenance Task Card 6120/10 November 21, 2003. -301, -311, and -315 airplanes Dash 8 Series 300 Maintenance Task Card 6120/10 November 21, 2003. Revision of Airworthiness Limitations (AWL) Section (j) Within 30 days after the effective date of this AD, revise the AWL section of the applicable Instructions for Continued Airworthiness by incorporating the contents of the applicable de Havilland TR listed in Table 2 of this AD into the AWL section of the applicable Bombardier DHC-8 Maintenance Program Support Manual (PSM). Table 2.—TRs DHC-8 model de Havilland TR Dated For PSM -101, -102, -103, and -106 airplanes AWL-86 March 17, 2003 1-8-7 -201 and -202 airplanes AWL 2-26 March 17, 2003 1-82-7 -301, -311, and -315 airplanes AWL 3-93 March 17, 2003 1-83-7 (k) When the information in the applicable de Havilland TR identified in Table 2 of this AD has been included in the general revisions of the applicable PSM identified in Table 2 of this AD, the general revisions may be inserted in the PSM, and the applicable TR may be removed from the AWL section of the Instruction for Continued Airworthiness. Alternative Methods of Compliance (AMOCs) (l)(1) The Manager, New York ACO has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) AMOCS approved previously in accordance with AD 2000-02-13 are acceptable for the corresponding requirements of this AD. Materials Incorporated by Reference (m) You must use the documents listed in Table 3 of this AD 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 these documents 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. Table 3.—Material Incorporated by Reference de Havilland service information Dated To de Havilland program support manual Dash 8 Series 100 Maintenance Task Card 6120/10 November 21, 2003 1-8-7TC. Dash 8 Series 200 Maintenance Task Card 6120/10 November 21, 2003 1-82-7TC. Dash 8 Series 300 Maintenance Task Card 6120/10 November 21, 2003 1-83-7TC. Temporary Revision AWL-86 March 17, 2003 1-8-7. Temporary Revision AWL 2-26 March 17, 2003 1-82-7. Temporary Revision AWL 3-93 March 17, 2003 1-83-7. Issued in Renton, Washington, on June 21, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05-12841 Filed 8-19-05; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by in-service issues reported by operators who incorporated a certain Bombardier service bulletin as an alternative method of compliance to AD 2000-02-13. We are issuing this AD to prevent the inadvertent activation of ground beta mode during flight, which could lead to engine overspeed, engine damage or failure, and consequent reduced controllability of the airplane.