What items are logged under oil consumption in the ADB?

The correct answer identifies the components logged under oil consumption in the Aircraft Daily Bulletin (ADB). Specifically, it includes both engines (#1 and #2) and the Integrated Gearbox (IGB) along with the Tail Gearbox (TGB).

The reason this selection is accurate is that these components are critical to the overall operation of the aircraft, particularly the engines, which require regular monitoring of oil levels for optimal performance and maintenance. Tracking oil consumption for these specific parts allows for better maintenance scheduling, troubleshooting, and overall aircraft reliability.

It is important to note that different configurations of the answer options include variations of engine and gearbox parts, but option B correctly encapsulates the relevant systems that must be monitored for oil consumption in the context of aviation maintenance procedures. This tracking is essential to ensure the safe and effective operation of the aircraft, as any irregularities in oil consumption could indicate mechanical issues that need further investigation.