90-08-17: Fuselage Moisture Drain System

90-08-17 BEECH: Amendment 39-6564. Docket No. 89-CE-39-AD. Applicability: Models 65-90, 65-A90, B90, C90 and C90A (Serial Numbers (S/N) LJ-1 through LJ-1222); E90, F90, H90, 100, A100 and B100 (all S/N); 200 and B200 (S/N BB-2 through BB-1344); 200C, B200C, 200CT, B200CT, 200T, B200T, A200, A200C and A200CT (all S/N); and 300 (S/N FA-1 through FA-204 and FF-1 through FF-19) airplanes certificated in any category. Compliance: Required within the next 100 hours time-in-service after the effective date of this AD, unless already accomplished. To prevent water accumulation in the aft fuselage which can freeze and restrict control movement, accomplish the following in accordance with the instructions in Beech Service Bulletin Number 2312, dated December 1989: (a) Inspect the aft fuselage moisture drain system. (1) If the drain system is unobstructed and the drain openings are not undersized, no further action is required. (2) If any obstruction of thedrain system or any undersized opening is found, prior to further flight remove the obstruction or enlarge the opening as required; and (3) Report, in writing, any defects found to the Manager, Wichita Aircraft Certification Office (address below) within 7 days of the inspection. (Reporting approved by the Office of Management and Budget under OMB No. 2120-0056.) (b) Airplanes may be flown in accordance with FAR 21.197 to a location where the AD may be accomplished. (c) An alternate method of compliance or adjustment of the compliance time which provides an equivalent level of safety, may be approved by the Manager, Wichita Aircraft Certification Office, FAA, 1801 Airport Road, Room 100, Wichita, Kansas 67209. NOTE: The request should be forwarded through an FAA Maintenance Inspector, who may add comments and then send it to the Manager, Wichita Aircraft Certification Office. All persons affected by this directive may obtain copies of the document referred to herein upon request to the Beech Aircraft Corporation, Commercial Service, Department 52, P.O. Box 85, Wichita, Kansas 67201-0085; Telephone (316) 681-7111; or may examine this document at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This amendment (39-6564, AD 90-08-17) becomes effective on May 7, 1990.