AD 98-01-14 Airworthiness Directives; Cessna Aircraft Company Model 182S Airplanes

Makes named: cessna. Models named: 182S. Read the applicability below — it usually turns on serial or part numbers too.

Model 182S airplanes (all serial numbers), certificated in any category. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (d) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.

Required as indicated in the body of this AD, unless already accomplished, except to those operators receiving this action by priority letter issued December 30, 1997, which made these actions effective immediately upon receipt. To prevent carbon monoxide gas from entering the airplane's cabin heating system and cabin, which, if not corrected, could result in passenger and pilot injury with consequent loss of control of the airplane, accomplish the following: (a) For Cessna Model 182S airplanes with serial numbers 18280050 through 18280060, 18280062, 18280063, 18280066, 18280067 through 18280070, and 18280083: Prior to further flight after the effective date of this AD, replace the left and right engine exhaust mufflers with an FAA-approved equivalent part in accordance with the appropriate Cessna maintenance manual. (b) For all Cessna Model 182S airplanes: After the effective date of this AD, no person may install any Aeroquip engine exhaust muffler, part number 71379-1254017-8, on any airplane. Note 2: Cessna Aircraft Company Service Bulletin No. SB97-78-01, dated December 23, 1997, titled ``Engine Exhaust Muffler Inspection'' pertains to the subject of this AD. (c) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (d) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Wichita Aircraft Certification Office, 1801 Airport Road, Rm. 100, Mid-Continent Airport, Wichita, Kansas 67209. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Wichita Aircraft Certification Office. [[Page 3811]] Note 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Wichita Aircraft Certification Office. (e) Copies of the relative service information may be obtained from The Cessna Aircraft Company, P.O. Box 7706, Wichita, Kansas 67277. Copies of this document also may be inspected at the FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri 64106. (f) This amendment (39-10292) becomes effective on February 23, 1998, to all persons except those persons to whom it was made immediately effective by priority letter AD 98-01-14, issued December 30, 1997, which contained the requirements of this amendment. Issued in Kansas City, Missouri, on January 20, 1998. Carolanne L. Cabrini, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-1860 Filed 1-26-98; 8:45 am] BILLING CODE 4910-13-U