Most failures with AMS 2759/2 are not metallurgical—they are documentation failures. A good paper on this topic will cover:

When flight safety and component structural integrity depend on maximizing mechanical properties without risking catastrophic brittle failure, aerospace manufacturers rely on AMS 2759/2. Technical Scope and Material Applicability

Parts shall be visually inspected for cracks, blisters, and excessive scale. Surface conditions that would impair the serviceability of the part are cause for rejection.

Active Revising: Replaces AMS 2759 SDO: SAE Aerospace