Harris, David (January 25, 2011). "Eva Air 747-400 BDSF". Cargo Facts. Royal Media. Archived from the original on May 18, 2018. Retrieved May 18, 2018.
"Boeing 747". Corendon Village Hotel Amsterdam. Archived from the original on October 27, 2020. Retrieved October 24, 2020.
deltamuseum.org
"Boeing 747-400". www.deltamuseum.org. Archived from the original on December 8, 2015. Retrieved November 30, 2015. "Registration No.: N401PW as Boeing test plane; changed to N661US for delivery to Northwest."
"Aviation Incident Final Report". app.ntsb.gov. National Transportation Safety Board. June 29, 2004. ANC03IA001. Archived from the original on September 15, 2020. Retrieved November 12, 2019. Originally retrieved on December 23, 2012. "Registration: N661US...the captain said the airplane was at a cruise altitude of 35,000 feet with the autopilot engaged, when it abruptly rolled into a 30 to 40 degree left bank."
"Boeing 747-400". www.deltamuseum.org. Archived from the original on December 8, 2015. Retrieved November 30, 2015. "Registration No.: N401PW as Boeing test plane; changed to N661US for delivery to Northwest."
"Aviation Incident Final Report". app.ntsb.gov. National Transportation Safety Board. June 29, 2004. ANC03IA001. Archived from the original on September 15, 2020. Retrieved November 12, 2019. Originally retrieved on December 23, 2012. "Registration: N661US...the captain said the airplane was at a cruise altitude of 35,000 feet with the autopilot engaged, when it abruptly rolled into a 30 to 40 degree left bank."
Harris, David (January 25, 2011). "Eva Air 747-400 BDSF". Cargo Facts. Royal Media. Archived from the original on May 18, 2018. Retrieved May 18, 2018.
"Aircraft Accident Report ASC-AAR-02-04-001[usurped]: Crashed on a partially closed runway during takeoff Singapore Airlines Flight 006 Boeing 747-400, 9V-SPK CKS Airport, Taoyuan, Taiwan October 31, 2000", Aviation Safety Council, Taiwan, Republic of China