An update on PWS audio warning priorities, this refers to the RDR4 radar:
Basic Audio Prioritization
1. Reactive Windshear System (RWS)
2. Predictive Windshear System (PWS)
3. Ground Proximity Warning System (GPWS)
4. Traffic Collision And Avoidance System (TCAS)
When the RDR-4B is interfaced to the EGPWS the message/display prioritization is:.
1. Reactive Windshear
2. GPWS Mode 1 Warning
3. GPWS Mode 2 Warning
4. EGPWS Terrain Warning
5. Predictive Windshear Warning
6. GPWS Mode 1-5 and EGPWS Caution
7. Predictive Windshear Caution
8. TCAS RA
9. TCAS TA
But when and how is an autopilot disconnect warning given in any of the above circumstances? Could an autopilot disconnect ‘get lost’ in all of the aircraft’s logic, or is it more likely that a crew, having just received a ‘stressful’ warning would mentally lose (not hear) a lower priority warning?
jtr it appears that we are saying the same thing.