CNN —The National Transportation Safety Board, which is investigating a near miss incident on the JFK runway last month, has issued a subpoena for the testimony of the American Airlines pilots involved. “American Airlines cleared the flight crew’s schedule to ensure their availability; however, the flight crew refused to be interviewed on the basis that their statements would be audio recorded for transcription,” the NTSB preliminary report says. “As a result of the flight crew’s repeated unwillingness to proceed with a recorded interview, subpoenas for their testimony have been issued.”The NTSB report says the American Airlines 777 crossed an active runway without clearance from air traffic control, causing a Delta 737 to abort its takeoff. Investigators have accepted written statements from the Delta crew and determined that they contain “sufficient information.”As CNN has previously reported, the American Airlines flight continued on to London’s Heathrow airport. The NTSB says the American crew, through their union, the Allied Pilots Association, would not consent to the interview.

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