"successfully able to" is correct and usable in written English.
You would use this phrase when you want to express that someone was able to do something with success. Example: The manager was successfully able to implement the new organizational structure.
We were never successfully able to write to the LCD.
Our GPS was successfully able to direct users to the buildings we selected for them on the TFT screen.
These valuations showed that the presented model is successfully able to predict both MFC and MEC performance.
The model is successfully able to capture the central deflection of the laminate plate and permanent indentation on the surface.
Tells how Ofshe performed an experiment on Ingram in which he made up an incident and was successfully able to get Ingram to "remember" it.
And I think this is actually the root cause of why we see so few companies are successfully able to leap into the new knowledge frontier.
After Tara started tracking her time and accomplishments each day, she was successfully able to make the case to her boss to hire an assistant editor.
We were successfully able to avoid this by using two distinct ultrasonic frequencies, with one system emitting and receiving different frequencies.
"Negotiators were successfully able to talk the suspect into surrendering," he said, speaking to reporters about six hours after the ordeal started.
The results indicated that all the proposed models are successfully able to predict the ERAC in close agreement with the experimental results.
The predicted responses showed that the developed neuronet-based model was successfully able to qualitatively assess the impact of strain rate and stress history on clay behavior.
