Document ID: chunk:federal_register_of_legislation:F2006B02318:body:0
Version: federal_register_of_legislation:F2006B02318
Segment Type: other
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Character Range: 0–1065

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 AlliedSignal (Lycoming) Turbine Engines - ALF502 and LF507 Series

               AD/ALF/4  Compressor Vanes, Turbine Blades and Turbine Nozzle - Inspection and Replacement

 Applicability: Lycoming Turbo Fan Engine Models ALF 502-L/L2 and ALF 502-R3/R4. Document:               1.              Avco Lycoming SB ALF 502-72-0012, Rev. 2.
2.         Avco Lycoming SB ALF 502-72-0025, Rev. 1.

3.         Avco Lycoming SBALF 502-72-0027.

4.         Avco Lycoming SBALF 502-72-0021; or

5.         AD/LYC-T/21.

            Note: FAA AD 82-25-10 Amendment 39-4511 refers.

1/86

 Compliance: In accordance with requirement documents.

            Background: There have been reports of engine failures and loss of power on ALF 502-L/L2 engines caused by separation of first stage compressor vane airfoils and fourth stage turbine blades in addition there has been a non contained fourth stage turbine blade failure.