Date: August 28, 1973
Time: 2050
Location: Thirty-five miles west of Los Angeles, California
Operator: Trans World Airlines
Flight #: 742
Route: Honolulu - Los Angeles
AC Type: Boeing B-707-331B
Registration: N8705T
cn / ln: 18916/455
Aboard: 149   (passengers:141  crew:8)
Fatalities: 1   (passengers:1  crew:0)
Ground: 0
Summary: The plane porpoised while descending to LAX. The aircraft was subjected to 2 minutes of peak acceleration forces of 2.4 g. A combination of design tolerances in the aircraft's longitudinal control system which, under certain conditions, produced a critical relationship between control forces and aircraft response.

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