Beechcraft King Air 250 — Parts Catalog

This document is a service bulletin for the Beechcraft King Air 250 and King Air 350, issued in November 2020. It provides critical updates and procedures related to various components and systems of these aircraft models. The bulletin includes information on placards, engine fire extinguisher connections, propeller de-ice boot protection circuit kits, and emergency exit door handle springs. It is intended for maintenance personnel and pilots who need to ensure the proper functioning and safety of the aircraft systems. The document emphasizes the importance of correct wiring and component installation to prevent malfunctions and ensure safety during operation.

• The King Air 250 placard does not have an official part number for replacement.
• Incorrect wiring of the engine fire extinguisher can lead to failure during an emergency.
• A kit for the propeller de-ice boot protection circuit is currently unavailable.
• A new spring option is available to improve the emergency exit door handle fit.
• Cleaning procedures for the low-pitch solenoid are detailed to ensure proper function.