Cessna Service Bulletin SB09-34-11
Reason: To provide new stepped design static port buttons that are designed to enhance the accuracy of the altitude and airspeed indications.
Description: The existing static port buttons shall be replaced with the new stepped type static port buttons as specified in this SB.
Compliance: Mandatory; shall be accomplished within the next 12 months or at the next scheduled annual type inspection, whichever occurs first.
CREDIT: 30 Nov 2010