2005-25-08: Electronic Flight Information System (EFIS)

2005-25-08 SHADIN: Amendment 39-14401; Docket No. FAA-2005-21787; Directorate Identifier 2005-CE-34-AD. When Does This AD Become Effective? (a) This AD becomes effective on January 23, 2006. What Other ADs Are Affected By This Action? (b) None. What Airplanes Are Affected By This AD? (c) This AD affects Shadin ADC-2000 air data computers (ADC), part numbers (P/N) 962830A-1-S-8, 962830A-2-S-8, 962830A-3-S-8, configurations B, C, and D, that are installed in, but not limited to, the following aircraft (all serial numbers), and are certificated in any category: Manufacturer Model Alliance Aircraft Group, LLC. H 250 B N Group Ltd BN2A Bombardier Inc DHC 3, DHC 6 Cessna Aircraft Company. 172, 180, 180E, 185, 206, 206E, 206F, 206G 208, 210L, 310 deHavilland Inc DHC 2 The New Piper Aircraft, Inc. PA 28 180, PA 28 181, PA 31 350, PA 32 300, PA 32 301, PA 32R 300, PA 34 200T What is the Unsafe Condition Presented in This AD? (d) This AD is the result of reports that certain ADC-2000 units display incorrect altitude information on the Electronic Flight Information System (EFIS) to the pilot. The actions specified in this AD are to prevent ADC-2000 units, P/Ns 962830A-1-S-8, 962830A- 2-S-8, and 962830A-3-S-8, configurations B, C, and D, from displaying incorrect altitude information. This could cause the flight crew to react to this incorrect flight information and possibly result in an unsafe operating condition. What Must I do to Address This Problem? (e) To address this problem, you must do the following: Actions Compliance Procedures (1) To ensure the air data computer (ADC) and the Electronic Flight Information System (EFIS) altimetry accuracy, do the normal preflight check. If the altitudes, altimeter, and elevation differ by more than 75 feet, do not fly the airplane in Instrument Meterological Conditions (IMC)/Instrument Flight Rules (IFR). Within the next 25 hours time-in-service (TIS) after January 23, 2006 (the effective date of this AD) and thereafter before each flight until the ADC is upgraded as specified in paragraph (e)(2) of this AD. Follow the Interim Procedures contained in Shadin Service Bulletin SB28 05 002, Rev C, dated June 29, 2005. The owner/operator holding at least a private pilot certificate may do the check specified in paragraph (e)(1) of this AD. Make an entry into the aircraft records showing compliance with this portion of the AD following section 43.9 of the Federal Aviation egulations (14 CFR 43.9). (2) Return all Shadin ADC 2000s, part numbers 962830A 1 S 8, 962830A 2 S 8, 962830A 3 S 8, Configurations B, C, and D, to the Shadin Repair Facility for upgrade. Contact the Shadin Technical Support department for a Return Merchandise Authorization (RMA) number. Until the ADC 2000 ismodified, returned, and reinstalled, only fly the airplane if equipment requirements for that airplane are still met. Within the next 15 months after January 23, 2006 (the effective date of this AD). Follow Shadin Service Bulletin SB28 05 002, Rev C, dated June 29, 2005. (3) Do not install any Shadin ADC 2000, part number 962830A 1 S 8, 962830A 2 S 8, or 962830A 3 S 8, Configurations B, C, and D, unless it has been upgraded as specified in paragraph (e)(2) of this AD. As of January 23, 2006 (the effective date of this AD). Not applicable. May I Request an Alternative Method of Compliance? (f) You may request a different method of compliance or a different compliance time for this AD by following the procedures in 14 CFR 39.19. Unless FAA authorizes otherwise, send your request to your principal inspector. The principal inspector may add comments and will send your request to the Manager, Chicago Aircraft Certification Office (ACO), FAA. For information on any already approved alternative methods of compliance, contact Jeffrey Kuen, Aerospace Engineer, Chicago ACO, FAA, 2300 East Devon Avenue, Room 107, Des Plaines, Illinois 60018; telephone: (847) 294-7125; facsimile: (847) 294-7834; e-mail address: jeffrey.kuen@faa.gov. Does This AD Incorporate Any Material By Reference? (g) You must do the actions required by this AD following the instructions in Shadin Service Bulletin SB28-05-002, Rev C, dated June 29, 2005. The Director of the Federal Register approved the incorporation by reference of this service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get a copy of this service information, contact Shadin, 6831 Oxford Street, St. Louis Park, Minnesota 55426-4412; telephone: (800) 388-2849 or (952) 927- 6500; facsimile: (952) 924-1111; e-mail: http://www.shadin.com. To review copies of this service information, go to the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html or call (202) 741-6030. To view the AD docket, go to the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC 20590-001 or on the Internet at http://dms.dot.gov. The docket number is FAA-2005-21787; Directorate Identifier 2005-CE-34-AD.