National Transportation Safety Board Reauthorization Act of 2010

[AI summary unavailable — showing source text] National Transportation Safety Board Reauthorization Act of 2009 - Reauthorizes appropriations to the National Transportation Safety Board (NTSB) for FY2010-FY2014. Revises the term "accident" to expand the NTSB's authority to investigate, at its discretion, accidents not involving the destruction or damage of a vehicle, aircraft, or pipeline, but significantly affecting transportation safety. Authorizes the NTSB by subpoena to summon witnesses and obtain any and all evidence relevant to an accident investigation. Prohibits the NTSB (including agency that has received information from the NTSB) from disclosing publicly any commercial or financial or certain classified information during ongoing NTSB accident investigations. Authorizes public disclosure of such information when necessary, in certain circumstances, to promote transportation safety. Authorizes accident investigation training of NTSB employees in theory and techniques and on transportation safety methods in order to advance NTSB safety recommendations. Revises the authority of the NTSB to investigate transportation accidents to include: (1) freight or passenger railroad accidents involving a fatality (other t…