[Docket No. FAA-2010-1084; Directorate Identifier 2010-CE-056-AD; Amendment 39-17257; AD 2012-23-01]

We are adopting a new airworthiness directive (AD) for all Cessna Aircraft Company
(Cessna) Model 402C airplanes modified by Supplemental Type Certificate (STC) SA927NW and
Model 414A airplanes modified by STC SA892NW. This AD was prompted by report of a Cessna
Model 414A airplane modified by STC SA892NW that experienced an asymmetrical flap condition
causing an uncommanded roll when the pilot set the flaps to the approach position.