Beechcraft Baron 58P, 58PA, 58TC & 58TCA Aircraft 1975–2002 Maintenance Manual (P/N 102-590000-5A25)

This official 656-page Raytheon Aircraft OEM manual details inspection intervals, service practices, and technical system specifications for the pressurized and turbocharged airframe variants.

• Covers 1975–2002 Beechcraft Baron 58P and 58PA Pressurized and 58TC and 58TCA Turbocharged aircraft, including specific requirements for TJ and TK serial-numbered airframes
• Official Raytheon Aircraft publication P/N 102-590000-5A25, revised June 2002
• Features 47 detailed maintenance charts, inspection guides, and structural repair references for airframe, power plant, and utility systems
• This A25 revision provides the most current factory documentation, superseding all earlier 1975 editions
• Explains auto flight, communications, ice and rain protection, pneumatic, and oxygen systems
• Details doors, stabilizers, windows, propellers, ignition, and turbine maintenance

Structural and System Details

This PDF documentation organizes maintenance protocols into standardized GAMA and ATA systems across the airframe and power plant. Sections detail vital airframe inspections, including wing bolts, skin integrity, and the internal structures of nacelles, the fuselage, and empennage. It thoroughly covers the landing gear, electrical power distribution, environmental controls, and fuel systems, serving as an essential reference for any repair shop. Mechanics will also find comprehensive guidance on return-to-service procedures, long-term storage, and unscheduled inspections following turbulent air penetration, hard landings, or lightning strikes.

For an active aviation shop, having exact factory tolerances available provides a distinct workflow advantage to efficiently fix complex faults, drastically reducing unbillable hours and preventing expensive outsourced specialty work. Clear step-by-step instructions are provided for tasks such as comprehensive 100-hour inspections, 1200-hour nose landing gear corrosion checks, flight control cable rigging, and cabin pressurization leakage testing. To further streamline the diagnostic and troubleshooting processes, the content includes vital visual aids like the Aircraft Dimensions, Stations Diagram, Fuel System Schematic, Airfoil Deice System Schematic, and the Cabin Pressure Control System Schematic.

Specifications and Servicing Data

Technical data within the publication defines exact operational limits for the aircraft's pressurized cabin and utility systems. Standard operation requires a cabin differential pressure of 3.75 psi, with cabin pressurization airflow specified at 130 scfm. During verification cycles, the outflow valve is tested at 5 psi. Additional electrical system data mandates an external power delivery of 28.25 +/- 0.25 volts for on-ground operations.

When servicing these specific turbocharged variants, experienced technicians know to avoid certain critical maintenance traps. For instance, operating the landing gear electrically while the emergency handcrank is engaged will severely damage the worm shaft engagement slot, requiring a complete teardown and magnetic inspection. Furthermore, inflating the main or nose shock struts while the aircraft is on jacks can lead to a sudden extension or over-inflation, which may severely bend the torque knees.

Important Safety Notice: Always consult a certified aviation technician and adhere to current FAA regulations before performing any service on this equipment. This manual serves strictly as a professional reference for experienced mechanics and shop owners.