What is the basic process to problem solving in any case?

Defining the objective.
Gathering sufficient information.
Identifying the feasible options.
Evaluating those options.
Making the decision (choosing an option).
Testing its implementation: by feel, by measurement and by assessment.

1) Comprehensive knowledge about the problematic process / area.
2) Take immediate remedial actions.
3) Identification of root cause.
4) Provide corrective and preventive actions plan to fix the problem.
5) Follow ups of the actions plan.
6) Update the standard process as per corrective and preventive actions.
7) Periodic Review.

First thing is that we need to know what is (Problem).

1.
Define and Identify the Problem 2.
Analyze the Problem 3.
Identifying Possible Solutions 4.
Selecting the Best Solutions 5.
Evaluating Solutions 6.
Develop an Action Plan 7.
Implement the Solution