Cessna 205 — Service Bulletins

This Service Bulletin No. 205 addresses the torque verification of the v-band lock-nut on specific turbocharger models used in various aircraft, including the Cessna 205. Issued by Hartzell Engine Tech, the bulletin outlines the compliance requirements, corrective actions, and inspection criteria necessary to ensure continued airworthiness of affected turbocharger assemblies. It emphasizes the importance of using the most recent revision of the bulletin and provides detailed torque specifications that supersede previous versions. The bulletin is intended for aircraft owners, operators, and maintenance personnel responsible for the inspection and maintenance of turbocharged aircraft engines.

• Compliance is required at the next annual inspection, not to exceed 12 months from issuance.
• Affected turbocharger models include TE06, TH08, TH08A, TA8102, T18A, and TA61.
• Torque specifications for TE06 are 40-60 in-lbs (4.52-6.78 Nm).
• Inspection must be performed by qualified personnel familiar with turbocharger systems.
• Use the most recent revision of this Service Bulletin for accurate information.