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Service Letter: 3000/3450 Series Bonded Stiffener Corrosion
Serial Letter Number: 211
Applicable Aircraft: Cessna 180, 182,185, 206, and Maule M-6-235, M-7-235, -B, -C, M-7-260, -C, M-7-420A, -AC, MT-7- 235, MT-7-260, MX-7-235, 3000 Floats, 3450 Floats
Applicable Serial Numbers: 30155-30284 and 34203-34314
Revision: B
Release Date: 4/17/2023
