Los Angeles – Denver – Milwaukee
Flight / Schedule
Los Angeles – Denver – Milwaukee
Aircraft
Boeing 727-100Registration
N7434U
MSN
19891/631
Year of Manufacture
1968
Operator
United AirlinesDate
January 18, 1969 at 06:21 PM
Type
CRASHFlight Type
Scheduled Revenue Flight
Flight Phase
Takeoff (climb)
Crash Site
Lake, Sea, Ocean, River
Crash Location
Los Angeles California
Region
North America • United States of America
Coordinates
34.0587°, -118.4165°
Crash Cause
Technical failure
Narrative Report
On January 18, 1969 at 06:21 PM, Los Angeles – Denver – Milwaukee experienced a crash involving Boeing 727-100, operated by United Airlines, with the event recorded near Los Angeles California.
The flight was categorized as scheduled revenue flight and the reported phase was takeoff (climb) at a lake, sea, ocean, river crash site.
38 people were known to be on board, 38 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.
Crew on board: 6, crew fatalities: 6, passengers on board: 32, passenger fatalities: 32, other fatalities: 0.
The listed crash cause is technical failure. Boeing 727-22C N7434U operated Flight 266 from Los Angeles to Denver, CO and Milwaukee, WI. The aircraft had been operating since January 15, 1969, with the No. 3 generator inoperative. This was allowed because according to the Minimum Equipment List, the aircraft is airworthy with only two generators operable provided certain procedures are followed and electrical loads are monitored during flight. Flight 266 was scheduled to depart the gate at 17:55, but was delayed until 18:07 because of the inclement weather and loading problems. The flight commenced its takeoff roll on runway 24 at approximately 18:17. At 18:18:30 the sound of an engine fire warning bell was heard in the cockpit. The crew reported a no. 1 engine fire warning and stated that they wanted to return to the airport. Shortly after shutdown of the No. 1 engine, electrical power from the remaining generator (No. 2) was lost. Following loss of all generator power, the standby electrical system either was not activated or failed to function. Electrical power at a voltage level of approximately 50 volts was restored approximately a minute and a half after loss of the No. 2 generator. The duration of this power restoration was just 9 to 15 seconds. The Boeing descended and struck the sea 11.3 miles west of the airport. The ocean depth at this point is approximately 950 feet.
Aircraft reference details include registration N7434U, MSN 19891/631, year of manufacture 1968.
Geospatial coordinates for this crash are approximately 34.0587°, -118.4165°.
Fatalities
Total
38
Crew
6
Passengers
32
Other
0
Crash Summary
Boeing 727-22C N7434U operated Flight 266 from Los Angeles to Denver, CO and Milwaukee, WI. The aircraft had been operating since January 15, 1969, with the No. 3 generator inoperative. This was allowed because according to the Minimum Equipment List, the aircraft is airworthy with only two generators operable provided certain procedures are followed and electrical loads are monitored during flight. Flight 266 was scheduled to depart the gate at 17:55, but was delayed until 18:07 because of the inclement weather and loading problems. The flight commenced its takeoff roll on runway 24 at approximately 18:17. At 18:18:30 the sound of an engine fire warning bell was heard in the cockpit. The crew reported a no. 1 engine fire warning and stated that they wanted to return to the airport. Shortly after shutdown of the No. 1 engine, electrical power from the remaining generator (No. 2) was lost. Following loss of all generator power, the standby electrical system either was not activated or failed to function. Electrical power at a voltage level of approximately 50 volts was restored approximately a minute and a half after loss of the No. 2 generator. The duration of this power restoration was just 9 to 15 seconds. The Boeing descended and struck the sea 11.3 miles west of the airport. The ocean depth at this point is approximately 950 feet.
Cause: Technical failure
Occupants & Outcome
Crew On Board
6
Passengers On Board
32
Estimated Survivors
0
Fatality Rate
100.0%
Known people on board: 38
Operational Details
Schedule / Flight
Los Angeles – Denver – Milwaukee
Operator
United AirlinesFlight Type
Scheduled Revenue Flight
Flight Phase
Takeoff (climb)
Crash Site
Lake, Sea, Ocean, River
Region / Country
North America • United States of America
