Accident · 1990-01-16

NTSB case DEN90LA046 · BOEING 757-222 · Part 121

What the record says

Event date: 1990-01-16
Event type: Accident
Highest injury level: No injuries
Aircraft: BOEING 757-222 (N505UA)
Operating rule: Part 121
Operator: UNITED AIRLINES, INC. Operator named in NTSB report
Operated by (per NTSB report): UNITED AIRLINES

Probable cause

OVERROTATION OF THE AIRCRAFT DURING TAKEOFF. FACTORS RELATED TO THE ACCIDENT WERE: THE FIRST OFFICER'S IMPROPER USE OF THE FLIGHT MANUAL, WHICH RESULTED IN HIS IMPROPER CALCULATIONS OF THE ROTATION SPEED, AND INADEQUATE SUPERVISION CONCERNING VERIFICATION OF THE TAKEOFF DATA BY THE CAPTAIN.

Source: NTSB case DEN90LA046

Flight crew

Flight-crew details for this event aren't in the NTSB database extract we hold (its coverage starts with 2008 events) — a gap in our data, not an absence of crew.

Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.

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