CESSNA T-210 — Maintenance Manual

This service letter, SEL-57-08, outlines mandatory inspection procedures for the carry-thru spar of various Cessna 210 and T210 models. It addresses the potential for corrosion and cracks that can lead to structural failure, which poses significant safety risks. The document specifies compliance timelines for different models, detailing the necessary steps for inspection and repair. It is crucial for aircraft owners and maintenance personnel to adhere to these guidelines to ensure the airworthiness of the aircraft. The service letter includes instructions for preparing the aircraft, conducting inspections, and applying protective coatings, as well as a list of consumable materials and tools required for the inspection process.

• Inspection required within 20 flight hours or next Annual Inspection for certain models; 200 flight hours for others.
• Detailed visual inspection using a 10X magnifying lens is mandatory.
• Blend limits for repairs are specified, with a maximum of 0.030 inches for most areas.
• Eddy current inspection is required if corrosion is found and blended.
• Protective coatings must be applied after inspection and repairs.