ASN Wikibase Occurrence # 365799
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| Date: | Monday 7 January 1991 |
| Time: | 20:15 LT |
| Type: |  Boeing 737-322 |
| Owner/operator: | United Airlines |
| Registration: | N396UA |
| MSN: | 24671/1913 |
| Year of manufacture: | 1990 |
| Engine model: | GE CFM-56-3B1 |
| Fatalities: | Fatalities: 0 / Occupants: 36 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | Kansas City, MO -
 United States of America
|
| Phase: | Take off |
| Nature: | Unknown |
| Departure airport: | |
| Denver, CO (KDEN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE FIRST OFFICER HAD CONTROL OF THE AIRCRAFT FOR TAKEOFF ON ICE COVERED RUNWAY. AFTER THE THROTTLES WERE ADVANCED FOR TAKEOFF, THE AIRCRAFT ROLLED STRAIGHT AHEAD FOR APPROXIMATELY 2 SECONDS, THEN BEGAN TO SLIDE TO THE LEFT. THE CAPTAIN TOOK CONTROL OF THE AIRCRAFT BUT COULD NOT MAINTAIN DIRECTIONAL CONTROL, OR STOP THE AIRCRAFT. THE AIRCRAFT DEPARTED THE LEFT SIDE OF THE RUNWAY AND CAME TO A STOP IN THE MUD AND SNOW. AN EMERGENCY EVACUATION WAS CONDUCTED. INVESTIGATION REVEALED THAT ON APPLICATION OF POWER FOR TAKEOFF, THE RIGHT ENGINE HAD A 10% GREATER N1 THAN THE LEFT ENGINE. THE FIRST OFFICER WAS ON HIS INITIAL OPERATING EXPERIENCE IN THE AIRCRAFT.
Probable Cause: IMPROPER USE OF THE THROTTLES, AND FAILURE TO MAINTAIN DIRECTIONAL CONTROL BY THE FIRST OFFICER. FACTORS RELATED TO THE INCIDENT ARE: ICE ON THE RUNWAY, LACK OF TOTAL EXPERIENCE IN THE TYPE AIRCRAFT AND OPERATION BY THE FIRST OFFICER, AND INADEQUATE SUPERVISION BY THE CAPTAIN.
Accident investigation:
 |
|
Sources:
NTSB CHI91IA062
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 13:59 | ASN Update Bot | Added |
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