COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters AD/BELL 206/108 Stabilizer Identification 10/87 DM Applicability: All model 206L-1 and 206L-3 with stabilizer assembly P/No. 206-023-119-151 installed. Requirement: Inspect the stabilizer assembly P/No. 206-023-119-151 and determine if one of the following S/Nos. is installed: AO-02065, AO-02069, AO-02075, AO-02080, AO-02084, AO-02095, AO-02097, AO-02126, AO-02132, AO-02136, AO-02144, AO-02149, AO-02150, AO-02166 and AO-10644. Compliance: Inspect prior to 19 August 1987 - if found installed replace before further flight. Background: The manufacturer reports that a number of stabilizers were rejected during the manufacturing process for bonding discrepancies. After mechanical deformation they were sold as scrap material. The manufacturer reports that at least one stabilizer was repaired by an unknown agent using an unapproved method, given an airworthy appearance and installed on an operating helicopter. It is probable that other or all of the rejected parts have been distributed as serviceable spares.