AD/Cessna 340/35 Fuel Flow Transducer (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 340 Series Aeroplanes

AD/CESSNA 340/35 Fuel Flow Transducer 5/2008

Applicability:	Cessna Model 340A series aeroplanes with the following serial numbers:
0959 0961 0962 0967	0972 0978 0982 0983	0984 0985 0998 1002	1003 1012 1014 1019
Requirement:	1.    Inspect fuel flow transducer Cessna part number (P/N) 9910395-9 (Aerosonics Corp P/N 33184-2) on each engine to determine the serial number.
2.    If the P/N 9910395-9 transducer has a serial number included in the block 2364 through 2930, replace the transducer with a transducer whose serial number is not included in that block.
Note 1:  The requirements of this Directive were most likely accomplished prior to the aircraft’s arrival in Australia and the aircraft’s maintenance records would indicate compliance with FAA AD 80-13-14, this is considered acceptable for compliance with this Directive.
Note 2:  FAA AD 80-13-14 Amdt 39-3844 refers.
Compliance:	For Requirement 1 - Prior to the issue of an Australian Certificate of Airworthiness.
For Requirement 2 - Before further flight after the Requirement 1 inspection.
This Airworthiness Directive becomes effective on 8 May 2008.
Background:	This Directive follows an internal review of Australian Airworthiness Directives (AD) which indicated an Australian AD was not issued in response to FAA AD 80-13-14.  The FAA AD was originally issued to detect and replace possible defective fuel flow transducers which may cause fuel leaks in the engine compartment.

CASA acknowledges that currently there are no 340A aeroplanes within the affected serial number range registered in Australia.  However, as one of these aircraft may be imported at a later date and may not have complied with the FAA AD, CASA is obliged to issue an AD reflecting the requirements of an AD issued by the State of design of the aircraft or appliance, in this case FAA AD 80-13-14.  Consequently, given the time since the FAA AD was made and that similar incidents have not been reported in Australia, CASA has decided that the initial compliance should be ‘Prior to the issue of an Australian Certificate of Airworthiness’.

David Punshon
Delegate of the Civil Aviation Safety Authority

6 March 2008