A Boeing whistleblower says he saw holes being drilled incorrectly on 787 planes, adding to the chorus of people speaking up against the company

• Another whistleblower has come forward with complaints of Boeing's safety lapses.
• Richard Cuevas said that he saw holes drilled improperly, which could lead to "catastrophe."
• The airplane mechanic said he was fired from his job shortly after raising concerns. 

Another Boeing whistleblower has come forward, saying that he witnessed 787 Dreamliner planes being built in a manner that could lead to a "catastrophe down the line."