Textron Aviation has released Service Bulletin SEB-21-02, which concerns replacement of the avionics cooling fan on Cessna 206 and T206 models. The original avionics fan is obsolete. When replaced, a modification is needed to the wiring and fan for correct installation. The bulletin is not mandatory and can be done at the owner’s discretion.
Affected serial numbers:
206H: 20608017 and On
T206H: T20608022 and On
