Tugrul Ak is a Principal Surveyor and Senior Partner at Ertem, Rivero & Partners, specializing in marine casualty investigations for H&M Underwriters and P&I Clubs. With a background as an oceangoing engineer and shipyard repair manager, he has extensive experience in machinery failures, fires, collisions, groundings, and high-profile repair projects at Tuzla and Yalova shipyards. Widely recognized for his expertise in engine crankshaft failures and root cause analysis, Tugrul currently oversees West Europe and Asia operations and surveyor management. He holds a BSc in Marine Engineering from Istanbul Technical University.