EASA SIB 2008-39
FAA SAIB NE-08-22 - Procedures for a "Propeller Search Inspection" or "General Visual Inspection" and performance of "Cosmetic Repairs"
Summary
FAA Special Airworthiness Information Bulletin NE-08-22 provides recommended procedures for performing a "propeller search inspection" or "general visual inspection" and guidelines for conducting "cosmetic repairs" on propellers. This bulletin applies to propellers installed on general aviation aircraft in Normal, Utility, and Acrobatic categories under Parts 22 and 23, as well as Transport category aircraft under Part 25. The document emphasizes inspection and repair practices for propellers from manufacturers such as Hamilton Sundstrand, Hartzell, McCauley, Sensenich, and others.
What Changed
This bulletin introduces recommended procedures for conducting propeller search inspections or general visual inspections in addition to any minor repairs. It also provides FAA-accepted guidelines for performing cosmetic repairs to ensure that flaws are not hidden by paint or decals. The bulletin clarifies the scope and expectations for inspections and repairs without requiring mandatory compliance.
Why It Matters
The bulletin helps aircraft owners, operators, and propeller repair stations identify and address potential airworthiness issues that may be overlooked during minor repairs. It ensures that cosmetic repairs do not conceal defects such as corrosion or cracks, thereby enhancing safety and reliability. Clear guidelines support maintenance personnel in maintaining propeller integrity and regulatory compliance.
What To Do
Operators and maintenance personnel should perform a thorough visual inspection of propellers during any repair work, reviewing logbooks and checking for wear, corrosion, leaks, or damage. Cosmetic repairs must follow manufacturer procedures, including proper surface preparation and corrosion protection before painting. Any defects found should be documented and addressed according to the severity, with nondestructive testing used when cracks are suspected.
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