AD 2007-17-02 Airworthiness Directives; Allied Ag Cat Productions, Inc. (Type Certificate No. 1A16 Formerly Held by Schweizer Aircraft Corp.) G-164 Series Airplanes

Makes named: schweizer. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to the following model and serial number airplanes that are certificated in any category and have Gemini fuel shut-off valve part number (P/N) 3/4-86-6-RT-6 (A3580-1) installed: (1) Group 1 (maintains the actions from AD 82-07-04):   Model Serial Nos. (i) G-164A 1726A through 1730A. (ii) G-164B 335B through 659B. (iii) G-164C 1C through 44C. (iv) G-164D 1D through 22D. (2) Group 2:   Model Serial Nos. (i) G-164 All. (ii) G-164A All except 1726A through 1730A. (iii) G-164B and G-164B with 73″ wing gap All except 335B through 659B. (iv) G-164B-15T All. (v) G-164B-20T All. (vi) G-164B-34T All. (vii) G-164C All except 1C through 44C. (iv) G-164D and G-164D with 73″ wing gap All except 1D through 22D.

To address this problem, you must do the following, unless already done:   Actions Compliance Procedures (1) Modify the fuel shut-off valve control by installation of a new stop-plate, P/N A1552-71 (or FAA-approved equivalent) (i) For Group 1 Airplanes: Within the next 100 hours time-in-service (TIS) after April 6, 1982 (the effective date of AD 82-07-04) Follow Schweizer Aircraft Corp. Ag-Cat Service Bulletin No. 78, dated January 26, 1982.   (ii) For Group 2 Airplanes: Within the next 100 hours TIS after September 18, 2007 (the effective date of this AD). (2) Do not install any Gemini fuel shut-off valve P/N 3/4-86-6-RT-6 (A3580-1) on any airplane unless the stop-plate is installed per paragraph (e)(1) of this AD For all Airplanes: As of the next 100 hours TIS after September 18, 2007 (the effective date of this AD) Follow Schweizer Aircraft Corp. Ag-Cat Service Bulletin No. 78, dated January 26, 1982. Alternative Methods of Compliance (AMOCs) (f) The Manager, Fort Worth Airplane Certification Office (ACO), 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: Matt Wilbanks, Aerospace Engineer, Fort Worth ACO, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone: (817) 222-5051; fax: (817) 222-5960. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (g) AMOCs approved for AD 82-07-04 are approved for this AD. Material Incorporated by Reference (h) You must use Schweizer Aircraft Corp. Ag-Cat Service Bulletin No. 78, dated January 26, 1982, to do the actions required by this AD, unless the AD specifies otherwise. (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 Allied Ag Cat Productions, Inc., 301 West Walnut Street, P.O. Box 482, Walnut Ridge, Arkansas 72479; telephone: (870) 866-2111. (3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 64106; or 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 Kansas City, Missouri, on August 6, 2007. Kim Smith, Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E7-15793 Filed 8-13-07; 8:45 am] BILLING CODE 4910-13-P

This AD results from our determination to add airplane models and serial numbers that were not previously included in the applicability. We are issuing this AD to prevent turning the fuel shut-off valve clockwise past the “ON” position which, if not corrected, could allow the fuel valve to be rotated to an unplacarded “OFF” position.