AD/PR/20 - Hub Front Face to Snout Radius - Inspection
1AD/PR/20 - Hub Front Face to Snout Radius - Inspection
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Propellers - Variable Pitch - Dowty Rotol
AD/PR/20 Hub Front Face to Snout Radius - Inspection NK
Applicability: All model (c) R175/4-30-4/13E, (c) R186/4-30-4/16 and 16/1, (c) R212/4-30-4/22/1 propellers not modified in accordance with Mod. VP 2388.
Requirement: In accordance with an approved eddy current technique, inspect the hub front face to dome mount radius for cracking.
Compliance: For all propellers which have not been modified in accordance with Mod. VP 2388 - inspect in accordance with the requirement within 1500 hours time in service after 30 September 1978, and thereafter at intervals not exceeding 1500 hours.
Note: NAC Eddy Current Technique TB-61-10 F3201 NAC9 is an approved technique.