2007-26-16: Aft fairing wire bundle assembly

2007-26-16 Cessna Aircraft Company: Amendment 39-15318. Docket No. FAA-2007-0379; Directorate Identifier 2007-NM-331-AD. Effective Date (a) This airworthiness directive (AD) is effective January 18, 2008. Affected ADs (b) None. Applicability (c) This AD applies to Cessna Model 680 airplanes, certificated in any category, serial numbers -0001 through -0152 inclusive, - 0157, and -0158. Unsafe Condition (d) This AD results from an incident report which indicated that a hydraulic leak and wire chafing, including signs of heat damage, were found within the lower tail cone fairing area. Similar wire chafing has also been found on other airplanes. We are issuing this AD to detect and correct wire chafing, and inadequate separation of the wiring and hydraulic line, which could lead to electrical arcing and a hydraulic leak and could result in a potential source of ignition and consequent fire. Compliance (e) Comply with this AD within the compliance times specified, unless already done. Inspections/Corrective Actions (f) Within 10 days after the effective date of this AD: Do a general visual inspection of the routing of the aft fairing wire bundle assembly for adequate separation between the wiring and the hydraulic line, and do a general visual inspection for chafing or damage of the wire bundle assembly and for damage to the hydraulic line; by doing all of the actions, including all applicable corrective actions, specified in the Accomplishment Instructions of Cessna Alert Service Letter ASL680-24-02, dated October 1, 2007; except as provided by paragraph (g) of this AD. Do all applicable corrective actions before further flight. Note 1: For the purposes of this AD, a general visual inspection is: "A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure, or irregularity. This level of inspection is made from within touching distance unless otherwise specified. A mirror may be necessary to ensure visual access to all surfaces in the inspection area. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or droplight and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.'' Exception to Alert Service Letter (g) Although the Accomplishment Instructions of Cessna Alert Service Letter ASL680-24-02, dated October 1, 2007, specify to submit certain information to the manufacturer, this AD does not include that requirement. Alternative Methods of Compliance (AMOCs) (h)(1) The Manager, Electrical Systems and Avionics, ACE-119W, FAA, ATTN: Jarrett Larrow, Aerospace Engineer, Electrical Systems and Avionics, ACE-119W, FAA, Wichita Aircraft Certification Office, 1801 Airport Road, room 100, Mid-Continent Airport, Wichita, Kansas 67209; telephone (316) 946-4128; fax (316) 946-4107; has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. (2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. 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. Material Incorporated by Reference (i) You must use Cessna Alert Service Letter ASL680-24-02, dated October 1, 2007, 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 Cessna Aircraft Co., P.O. Box 7706, Wichita, Kansas 67277. (3) You may review copies of the service informationincorporated by reference at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; 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 .