What is the retirement life of the heated windshield of Cessna model 421C?

The retirement life of the heated windshield of the Cessna model 421C is 13,200 hours. This specification is established by the manufacturer to ensure the safety and reliability of the aircraft's systems. The heated windshield is designed to prevent ice formation and ensure visibility, which is critical for safe operation. By setting a defined retirement life, the manufacturer ensures that maintenance personnel and operators replace the component before it reaches a point where it is no longer effective, thereby minimizing the risk of failure during flight. This specific duration reflects the expected lifespan given the operational stresses and environmental conditions the windshield may encounter in service.