Uploaded May 2024 | Updated September 2026, 19 hours ago
The crew of a United Airlines 727 tried to turn back shortly after takeoff from Los Angeles, but did not make it back to the airport. The plane crashed into the Pacific Ocean.
Greg Feith, Todd Curtis, and John Goglia discuss the crash of the 727-22QC in 1969. Electrical failures and electrical system design contributed to the plane crash. The accident happened on a night with limited visibility due to the weather.
The aircraft had three electrical generators, but only two were working. Shortly after takeoff, the crew shut down one engine due to a fire warning. That move shut down one of the two working generators.
John discusses the complexities of 727 electrical systems and other aircraft of the era. The NTSB found that total power loss occurred after all the electrical loads were placed on the one remaining generator.
Related Document: NTSB Accident Report NTSB-AAR-70-6, UAL_N7434U_727_1969-01-18_AAR7006.pdf
Don’t miss what’s to come from the Flight Safety Detectives - subscribe to the Flight Safety Detectives YouTube channel, listen at your favorite podcast service and visit the Flight Safety Detectives website.
Music: “Inspirational Sports” license ASLC-22B89B29-052322DDB8
The crew of a United Airlines 727 tried to turn back shortly after takeoff from Los Angeles, but did not make it back to the airport. The plane crashed into the Pacific Ocean.
Greg Feith, Todd Curtis, and John Goglia discuss the crash of the 727-22QC in 1969. Electrical failures and electrical system design contributed to the plane crash. The accident happened on a night with limited visibility due to the weather.
The aircraft had three electrical generators, but only two were working. Shortly after takeoff, the crew shut down one engine due to a fire warning. That move shut down one of the two working generators.
John discusses the complexities of 727 electrical systems and other aircraft of the era. The NTSB found that total power loss occurred after all the electrical loads were placed on the one remaining generator.
Related Document: NTSB Accident Report NTSB-AAR-70-6, UAL_N7434U_727_1969-01-18_AAR7006.pdf
Don’t miss what’s to come from the Flight Safety Detectives - subscribe to the Flight Safety Detectives YouTube channel, listen at your favorite podcast service and visit the Flight Safety Detectives website.
Music: “Inspirational Sports” license ASLC-22B89B29-052322DDB8
