AD/Cessna 560/9 Minimum Airspeed Placards (Cth)

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Cessna 560 (Citation V) Series Aeroplanes

AD/CESSNA 560/9 Minimum Airspeed Placards 1/2008 DM

Applicability:	Model 560 aircraft, serial numbers 560-0001 through 560-0538.
Requirement:	Action in accordance with the technical requirements of FAA AD 2007-23-13 Amdt 39-15259.
Compliance:	As specified in the Requirement document.
This Airworthiness Directive becomes effective on 21 November 2007.
Background:	FAA AD 2007-23-13 results from an evaluation of in-service aircraft following an accident.  The evaluation indicated that some aircraft may have an improperly adjusted stall warning system.  The requirements of this Directive are intended to prevent an inadvertent stall due to the inadequate stall warning margin provided by an improperly adjusted stall warning system, which could result in loss of controllability of the aircraft.

David Villiers
Delegate of the Civil Aviation Safety Authority

20 November 2007