Which indication indicates that bleed air is not available from the APU?
Understand the Problem
The question is asking for the identification of an indication that signifies the unavailability of bleed air from the Auxiliary Power Unit (APU). It presents multiple-choice options to select the correct indication.
Answer
Low or zero bleed pressure indicates bleed air not available from APU.
The final answer is that a low or zero bleed pressure indication while the APU is running suggests that bleed air is not available from the APU.
Answer for screen readers
The final answer is that a low or zero bleed pressure indication while the APU is running suggests that bleed air is not available from the APU.
More Information
In aircraft systems, monitoring the bleed pressure is crucial as it provides an indication of the pneumatic system's functionality. If the pressure remains low or absent while the APU is running, it highlights an issue that might need troubleshooting.
Tips
A common mistake is not checking the bleed pressure indication while troubleshooting turbine issues.
Sources
- A320 APU Bleed - PPRuNe Forums - pprune.org
- APU Bleed Pressure Indication · Issue #1484 · flybywiresim/aircraft - github.com
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