85-10-02: Engine Induction Airbox

85-10-02 CESSNA: Amendment 39-5064. Applies to Models 206, U206, U206A, U206B, U206C, U206D, U206E, U206F, and U206G (R/Ns 206-0001 thru U20606065); P206, P206A, P206B, P206C, P206D, and P206E (S/Ns P206-0001 thru P20600647); 207 and 207A (S/Ns 20700001 thru 20700681); 210D, 210E, 210F, 210G, 210H, 210J, 210K, 210L, 210M, and 210N (S/Ns 21058221 thru 21064226) airplanes certificated in any category which are equipped with Continental Model IO-520-( ) engines. Compliance: Required within 100 hours time-in-service after the effective date of this AD and each 100 hours time-in-service thereafter, until modified in accordance with paragraph (b) of the AD. To eliminate the possibility of engine power reduction due to ingestion of pieces of a failed engine induction airbox outboard duct, accomplish the following: (a) Visually inspect the engine induction airbox outboard duct lower skin for cracks. (b) If cracks are found, prior to further flight, either replace theinduction airbox outboard duct with a Cessna Part Number 1250705-8 duct or repair the skin of the existing duct in accordance with the repair procedures of FAA Advisory Circulars AC 43.13-1A and AC 43.13-2A using material at least .040 inches thick. (c) An equivalent means of compliance with this AD may be used if approved by the Manager, Aircraft Certification Office, FAA, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209. Cessna Single Engine Customer Care Service Information Letter SE84-20 dated November 2, 1984, covers the subject matter of this AD. This amendment becomes effective on June 20, 1985.