Lionair plane down in Bali.

[PEI_3721]

Although the details of this accident are far from clear, there are aspects which we can consider and learn from.

See the incident report below. There are many good safety lessons re wind-shear, and being written from the crew’s point of view it provides a valuable perspective of why we need ‘flying’ to go just right.

“If the microburst encounter happened at any lower altitude or if there was any lesser crew response, then the resulting aircraft flight path could have led to a major accident.”
“Follow recommended procedures to give the optimum performance. Practice an encounter with the FAA level 4 windshear in the simulator.”
“Severe wind shear or micro downburst conditions can occur near any cumulus clouds; they are not limited to Cb clouds.”
“The most significant yet unusual warning of the encounter was the crew's awareness of the exceptional noise of very intense rain.”

Note that the conditions did not involve a Cb, just a big Cu and that the met report was 'light rain falling at the airfield”; the WXR did not detect anything significant. The aircraft did not have windshear warning system, but a reactive system may not have bettered the Captains awareness, nor might a predictive system identify a rapidly developing hazard.
Also note what can be deduced from FDR analysis.

Windshear Incident

“The probability of encountering a hazardous situation does not recognise age, experience, or length of service - if it can happen, it will happen; probably to you!”

“If you have been unfortunate to have a severe safety event you are not exempt from another!
Having had one event, it can lead to a consequential event.”