EASA SIB AIR-21-16: Seat Back Attachment Bolt Inspection

What to do

Owners and operators of the affected Textron Aviation airplanes with seat part numbers 0515001-20, -25, -26, -208, -209, -210, and -211 installed should perform repetitive visual inspections of the seat back attachment bolts every 200 flight hours. Bolts found in poor condition or with defects must be replaced. Refer to the updated service and maintenance manuals listed in the bulletin for detailed inspection procedures.

Summary

Special Airworthiness Information Bulletin SAIB: AIR-21-16 is an FAA information bulletin addressing a seat back attachment bolt inspection for various Textron Aviation (formerly Cessna Aircraft Company) models including the 172 series, 177 series, 180 series, 182 series, 188 series, 200 series, and 300 series airplanes. The bulletin highlights an airworthiness concern related to bolts attaching the seat back to the seat base on pilot and copilot seats using specific seat part numbers. It provides updated inspection guidance but does not mandate regulatory action.

What changed

SAIB AIR-21-16 introduces updated service and maintenance manual revisions for the affected Textron Aviation airplanes. These updates include detailed instructions for repetitive 200-hour visual inspections of the seat back attachment bolts for specific seat part numbers. The bulletin responds to safety concerns following a landing accident caused by a seat back bolt failure.

Why it matters

This bulletin is important for aviation professionals because it addresses a potential safety risk that could affect pilot control during critical phases of flight. Operators and maintenance personnel need to be aware of the inspection requirements to prevent seat back failures that could lead to accidents or substantial aircraft damage. Compliance with the recommended inspections helps maintain aircraft safety and operational integrity.

What to do

Summary

What changed

Why it matters

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