Mr Jones criticised the MP for taking a 'no' stance in the devolution campaign, a stance which was against Labour policy and which was defeated by the yes campaign in Wales.
The committee Mr Jones faced last Friday comprised 20 people including Sir Ray's daughter, his son-in-law and his son-in-law's brother.
Mr Jones said: 'I've no idea what their stated purpose was that evening. They were told they couldn't discipline me because I was following party policy, but they are very old-style Labour.
Sir Ray Powell was unavailable for comment.