AD/CESSNA 550/26 - Wing Fuel Boost Pumps (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 550 (Citation II) Series Aeroplanes AD/CESSNA 550/26 Wing Fuel Boost Pumps 6/2006 DM

Applicability: Cessna Model S550, 550 and 551 model aeroplanes with serial numbers as follows: Model Serial Number Range

S550 0001 through 0160 inclusive 550 and 551 0002 through 0733 inclusive 550 0801 through 1075 inclusive Requirement: 1. If not previously accomplished, revise the Limitations Section of the applicable Cessna aircraft flight manual (AFM) to prohibit use of the wing fuel boost pumps for defueling under certain conditions, by inserting the applicable temporary change identified in Cessna Service Bulletin SB550-28-14, dated 2 December 2003, or in the following table. AFM Temporary Change Dated AFM