AD 80-10-01

80-10-01 CESSNA: Amendment 39-3762. Applies to Cessna Models 180 through 180J, 185 through 185E, A185E, and A185F airplanes equipped with Airglas Engineering Company, Inc., LW3600-180 or LW3600-180A ski installations in accordance with STC SA213AL.

Compliance required as indicated, unless already accomplished.

To preclude the possibility of a ski rotating tip-down in flight, with resulting adverse flight and landing characteristics, accomplish the following:

(a) Operation of airplanes equipped with Airglas Engineering Company, Inc., LW3600-180 or LW3600-180A ski installations, in excess of 160 KT IAS is prohibited.

(b) Prior to further flight, on airplanes equipped with Airglas Engineering Company, Inc., LW3600-180 or LW3600-180A ski installation, install a placard on the instrument panel immediately adjacent to the airspeed indicator and in plain view of the pilot to read as follows:

DO NOT EXCEED 160 KTS IAS WITH AIRGLAS LW3600-180 SKIS INSTALLED or DO NOTEXCEED 160 KTS IAS WITH AIRGLAS LW3600-180A SKIS INSTALLED

whichever is appropriate.

(c) Within the next 50 hours time in service after the effective date of this AD, and thereafter at any time the skis are installed, rig and modify the LW3600-180 or LW3600-180A ski check, safety, and bungee cables in accordance with Airglas Engineering Company, Inc. Service Bulletin No. LW3600-3, dated September 21, 1979, or an FAA-approved equivalent.

This amendment supersedes Amendment 39-1218 (36 FR 9860) AD 71-11-06.

This amendment becomes effective May 12, 1980.