AD/PR/26 Amdt 1 - Front Wall/Snout Radius Cracking
1AD/PR/26 Amdt 1 - Front Wall/Snout Radius Cracking
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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Propellers - Variable Pitch - Dowty Rotol
AD/PR/26
Amdt 1
Front Wall/Snout Radius Cracking 5/90
Applicability: All R212/4-30-4/22, R212/4-30-4/22/1 and R251/4-30-4/49 propellers.
Requirement: Inspect the hub front wall/snout radius area for evidence of cracking in accordance with Dowty Rotol SB 61-1053 Revision 2.
Note: Hubs previously exempt or certified as having complied with AD/PR/20 must be reinspected in accordance with this Directive.
Compliance: In accordance with the Requirement Document.
Background: Cracks have been found in the front wall/snout radius area in a limited number of hubs modified to VP 2388 standard. The manufacturer now requires all hubs, modified or unmodified, to be inspected and if a hub is found cracked during overhaul a fleet wide recurring inspection is required.
This Amendment incorporates Revision 2 of the Requirement document.