Federal Register of Legislation
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES
Eurocopter AS 350 (Ecureuil) Series Helicopters
AD/ECUREUIL/11 Amdt 2
Main Gear Box - Spectrometric Analysis of Lubricating Oil
10/88
Applicability: All model AS 350 helicopters fitted with bevel reduction gear modules P/N 350 A32- 0300-00 or 01.
Note: Reduction gear module P/N 350A32-0300-02 with vertical shaft modified to AMS 07-7027 or modules P/N 350 A32-0300-00 or 01 modified to either AMS 07- 7042 or AMS 07-7027 are exempt from the requirement of this Directive.
Requirement: Action in accordance with SB No 05.06 Revision 2. Compliance: As detailed in the requirement document. Background: This AD supersedes AD/ECUREUIL/9, which is CANCELLED. The manufacturer considers that the wear check to the bevel gear module shaft splines called up in Telex Service 05-05 (AD/ECUREUIL/9) was inaccurate, and has introduced a spectrometric monitoring programme for the main gearbox oil. The manufacturer has further advised that modified bevel gear reduction modules do not require inspection. Amendment 2 to this Directive details those modules.
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