KA200-024 · KING AIR 200/B200 · ATA 24 · US$269.10 · 10% OFF US$299

King Air 200/B200 Electrical Power, Batteries and Generator Diagnostics

10 explained lessons

Trace battery, generator and bus connections

6 visual workshops

Explore 13 named components and measured records

10 paired cases + 3 jobs

Complete all 45 required lab fields
Learn how the battery relay, starter-generators, generator control units (GCUs), contactors, current limiters and isolation diodes supply the King Air 200/B200 electrical buses. Follow normal current flow, then compare voltage, load and annunciator readings to locate the next useful check. Six interactive workshops cover battery power, generator connections, voltage and load sharing, four dual-fed distribution loops, instrument supplies, and battery health/external power. The identified teaching configurations are BB70 with original Leland controls, BB1200 with GCUs and a Ni-Cd battery, BB1750 with GCUs and a 42 Ah sealed lead-acid battery, and BB1900 with Pro Line 21 DC instrument supplies. Includes a 38-page handbook, ten lesson decisions, ten two-part cases, three five-field jobs and a separate 40-question final at 80%.

What's included?

  • Ten system lessons explain normal operation, component locations and the meaning of each measured result.
  • Six interactive visual workshops with 13 named components and four identified BB-series configurations.
  • Ten coached two-part fault cases and three independent five-field jobs; all 45 lab fields are required.
  • A 38-page downloadable handbook with references to the supplied Model 200 Series Maintenance Manual, Chapter 24.
  • A separate 40-question final at 80%, explained answer feedback and a certificate after all required activities.

Trace normal electrical power before diagnosing a fault

Locate the battery in the right wing center section forward of the main spar, the DC power distribution panel A145 below the center aisle, and the later GCUs immediately aft of A145. Follow the battery master command to the battery relay, then distinguish the hot battery bus from switched distribution. Trace each starter-generator through its field control and output connection to the buses, current limiters and isolation diodes.

Compare generator voltage and load / Follow each distribution loop / Check battery and instrument supplies

Use the later GCU voltage workshop to decide whether the voltage screw must move clockwise to increase voltage or counterclockwise to decrease it, then evaluate fresh measurements in the specified 28.00–28.50 V band. Compare generator terminal B with its GCU voltage-sensing input before assigning a regulation fault. Keep the original Leland load-sharing task separate from the later GCU task.

Select a feed to each of the four dual-fed loops and compare the named annunciator results. Distinguish a normal hot-bus load, an open generator line contactor, an unintended loop interconnection, and an external-power relay that has not connected the GPU to the switched bus.

Calculate delivered ampere-hours and separately assess the specified battery endpoint voltage. Compare the aircraft and bench Ni-Cd charge-current shunt scales. Check both 115 V and 26 V instrument-inverter outputs on the identified inverter-equipped aircraft, then select BB1900 to follow the separate RR-18 DC supplies to the AFD-3010 displays and AHC-3000 attitude/heading computers. Aircraft serial number, installed parts and modification records determine which branch applies.
Meet the instructor

Patrick Jones

Patrick Jones is a content marketing professional since 2002. He has a Masters Degree in Digital Marketing and a Bachelors in Education and has been teaching marketing strategies for over 15 years in Chicago. Patrick enjoys teaching all levels and all ages. He looks forward to sharing his love of building meaningful and effective content with all students to develop their marketing abilities.
Patrick Jones - Course author