Aircraft Systems · AGK

Zero Oil Pressure Indication in Flight

CASA Ref: CASR Part 61 MOS Schedule 3 CAKG 1.4 · FAA Ref: FAA-S-ACS-6C Area IX Emergency Operations

Scenario & Physics Summary

Differentiating between gauge sender failure and actual engine oil starvation, temperature correlation, and forced landing preparation.

Interactive 3D Visual Plates & Scenario Media

Zero Oil Pressure Indication in Flight Plate 1

Plate 1: Zero Oil Pressure Indication in Flight

Zero Oil Pressure Indication in Flight Plate 2

Plate 2: Zero Oil Pressure Indication in Flight

Zero Oil Pressure Indication in Flight Plate 3

Plate 3: Zero Oil Pressure Indication in Flight

Zero Oil Pressure Indication in Flight Plate 4

Plate 4: Zero Oil Pressure Indication in Flight

Aerodynamic & Operational Physics

Oil lubricates bearings, cools internal components, and cushions shock loads.
If oil pressure reads ZERO but oil temperature remains NORMAL, suspect gauge/sensor failure. Cross-check engine roughness.
If oil pressure reads ZERO AND oil temperature RISES rapidly, engine failure is imminent within 1-3 minutes. Land immediately.

CASA & FAA Exam Gotcha Alert

Exam Trap: Always cross-verify oil pressure drop against oil temperature rise before immediately shutting down an engine in cruise.

Frequently Asked Questions & Exam Explanations

What does it mean if oil pressure drops to zero but oil temperature stays normal?

It suggests an oil pressure gauge or transmitter failure rather than complete engine oil loss.

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