CESSNA 175 — Service Manual

This service letter provides guidance for the replacement of hydraulic pumps on Cessna 172 and 175 aircraft equipped with 2100A and 2350A floats. It is intended for use by maintenance personnel and outlines the compliance requirements, background information, and detailed instructions for the replacement process. The document emphasizes the optional nature of compliance and includes information on parts and service kits available for the hydraulic pump replacement. It also provides approximate shop hours for the work involved and notes any changes to weight and balance that may result from the installation of new components.

• This service letter applies to Cessna 172 and 175 aircraft with specific float models.
• Hydraulic pump replacement is optional but recommended due to part discontinuation.
• The service letter outlines the installation of new hydraulic pumps and associated parts.
• Approximate labor hours for the replacement process are provided for planning.
• No warranty coverage is included for labor and parts in this service letter.