EASA SIB CE-17-12: Textron (formerly Cessna, Reims) 150/152 Aeroplanes - Horizontal Stabilizer Elevator Attachment Points

What to do

Operators and maintenance personnel should perform the initial inspection within 10,000 flight hours or 20 years, whichever occurs first, and repeat inspections every 2,000 flight hours or 4 years thereafter. The inspection requires opening access panels, conducting visual and eddy current inspections, and replacing any damaged or worn components such as bolts, nuts, rivets, and bearings. All repairs must comply with the applicable Model 150 Service Manual Section 18 or be coordinated with Cessna Customer Service if not covered.

Summary

The Textron (formerly Cessna, Reims) 150/152 Aeroplanes - Horizontal Stabilizer Elevator Attachment Points Service Manual Supplemental Inspection Number 55-10-01 provides detailed inspection procedures for the horizontal stabilizer, elevators, and their attachments on Cessna Model 150 series aircraft manufactured between 1969 and 1976. It specifies inspection intervals, methods including visual and eddy current inspections, and identifies critical areas such as hinge bolts, bearings, torque tubes, and attachment fittings. The document aims to detect damage, fatigue, corrosion, and deterioration to ensure continued airworthiness of these aircraft.

What changed

This document introduces a supplemental inspection procedure focused on the horizontal stabilizer and elevator attachment points for the specified Cessna 150 series models. It establishes initial and repeat inspection intervals and provides detailed step-by-step instructions for accessing, inspecting, and repairing affected components. The inspection includes the use of nondestructive testing methods such as eddy current inspection where cracks or frozen bearings are suspected.

Why it matters

This inspection is critical for maintaining the structural integrity and safe operation of the horizontal stabilizer and elevator assemblies on Cessna 150 series aircraft. Identifying and addressing fatigue, corrosion, or damage early helps prevent potential in-flight failures. Operators, maintenance organizations, and compliance teams benefit from clear guidance to ensure inspections are thorough and repairs are performed according to approved procedures, thereby enhancing aircraft safety and regulatory compliance.