Whenever the court makes an order pursuant to section 302.3 of the Family Court Act transferring a juvenile delinquency proceeding for disposition to the Family Court in the county where the respondent resides, the clerk of the sending court shall immediately transmit by electronic means all available records concerning the case, including, but not limited to, the petition, order of fact-finding, any reports regarding the respondent contained in the court file, the transcript of the plea allocution by the respondent, the court activity reports and any other orders made by the sending court. Any documents or orders not immediately available for such transmission shall be expeditiously prepared and forwarded by the sending court no later than 48 hours from the date of the order of transfer.