NEW : The agency has said it also has been in contact with the two teenagers who told a local television station they were exchanging text messages with the engineer just before the crash occurred . California Public Utilities Commission passed ban Thursday . Phone records show engineer texting during work hours on day of crash . Engineer Robert Sanchez was among 25 people killed in Friday 's crash . Comment:
NEW : California Public Utilities Commission passed ban Thursday . Phone records show engineer texting during work hours on day of crash . Engineer Robert Sanchez was among 25 people killed in Friday 's crash . Comment: