AD 2008-22-16
Effective 12/01/2008 · Published 10/27/2008
Airworthiness Directives; General Electric Company (GE) CT58 Series Turboshaft Engines
Summary
The FAA is adopting a new airworthiness directive (AD) for certain GE CT58 series turboshaft engines. This AD requires recalculating the lives of certain part numbered compressor spools using a new repetitive heavy lift (RHL) multiplying factor. This AD results from reports of cracks originating from the inner faces of the locking screw holes in the compressor spool. We are issuing this AD to prevent cracks due to R…