Trace the cabin pressure system

TM-062 | King Air B300/B300C Pressurization & Bleed-Air Troubleshooting

Environmental inflow

Bleed air, flow control and cabin supply

Pressure control

Vacuum, controller, outflow and safety valve

Fault evidence

Supply, command, response and leakage
Understand conventional vacuum-operated King Air pressurization. Includes a 30-page handbook, interactive system workbench, measurement practice, 12 diagnostic cases and a 40-question final.

What's included?

  • 10 focused lessons
  • Completion certificate
  • 40-question final
  • 12 guided fault cases
  • 30-page handbook

Understand the connected system

Trace environmental inflow through flow control, heat exchange and cabin distribution. Connect regulated vacuum, controller demand, outflow-valve response and safety routing. Separate pressure control from temperature regulation and indication.

Practise defensible fault isolation

Use six system predictions, two measurement benches, 12 diagnostic cases and an independent review. Complete the lab and pass the 40-question final at 80%. Study edition: Textron 434-590169-0009, ATA 21, pages dated 1 May 2018. Covers conventional vacuum-operated control; digital automatic pressurization is outside scope. Use current aircraft-effective instructions for practical work. Online completion does not confer maintenance authorization.