unclemohammed, Lopatkiewicz is the Director of Public Affairs. The LOPATKT@ address is probably used by him when functioning as Director of that office. Lopatt@ is probably used as a media contact address for specific incidents. It is not unheard of for government officials to have more than one email address.
The lopatt@ appears in other NTSB releases as the media contact.
As to errors in style or syntax, Lopatkiewicz doesn't follow the government style manual in this release, or in other releases in which his name appears as the contact person. For example, 5 is written numerically, the style manual would prescribe "five".
Finally, its possible that a summer intern wrote the release. The NTSB Public Affairs Office is quite busy with the investigation of a serious subway accident in Washington DC earlier this week, amd I would think that Lopatkiewicz is rather busy arranging for NTSB press conferences and briefings.