The phrase "action plan outlined" is correct and usable in written English.
You can use it when referring to a specific plan of action that has been detailed or described in a document or discussion.
Example: "The action plan outlined in the meeting will guide our next steps for the project."
Alternatives: "detailed action plan" or "action plan described".
They have put together a climate action plan outlining how the city can better prepare for disaster.
Saudi Arabia is now required to present an action plan outlining how it will address these problems before it can be admitted to the task force.
I can also announce we'll be developing a memorandum of understanding on future defence co-operation that will see us agree an action plan outlining joint activity in the coming years.
UBS has prepared a 20-page "action plan" outlining various options, while senior managers at Goldman Sachs have had preliminary discussions on eventually dropping its status as a federally insured bank, allowing it to escape several of the most stringent provisions in the new law.
The action plan outlines aims to: Improve the "flow" of patients through the hospital, ensuring clinical expertise is in place to support this at all times.
Each team developed an action plan outlining what steps they would take to make improvements, who was going to be responsible for those steps, and when those actions would be completed.
The consultation resulted in a global action plan outlining promising specific strategies to increase influenza vaccine production and surge-capacity before and during an influenza pandemic.
It has also launched an action plan outlining five steps to turn the services around, including increasing the number of trained call handlers.
The expectation was set that every leader receiving feedback would create an action plan outlining what would be done to increase the level of engagement in their team.
