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| Title: | Runway overrun, Western Air Lines, Inc., Boeing 737-200, N4527W, Casper , Wyoming, March 31, 1975 |
| Micro summary: | Following a nonprecision approach, this Boeing 737 overran the runway. |
| Event Time: | 1975-03-31 at 0743 MDT |
| File Name: | 1975-03-31-US.pdf |
| Publishing Agency: | National Transportation Safety Board (NTSB) |
| Publishing Country: | USA |
| Report number: | NTSB-AAR-75-15 |
| Pages: | 39 |
| Site of event: | Landing, overrun RWY 25 |
| Departure: | Denver Stapleton International Airport, Denver, Colorado, USA |
| Destination: | Natrona County International Airport, Casper, Wyoming, USA |
| Airplane Type(s): | Boeing 737-200 |
| Flight Phase: | Landing |
| Registration(s): | N4527W |
| Operator(s): | Western Air Lines |
| Type of flight: | Revenue |
| Occupants: | 99 |
| Fatalities: | 0 |
| Serious Injuries: | 4 |
| Minor/Non-Injured: | 95 |
| Other Injuries: | 0 |
| Executive Summary: | A t 0743 on March 31, 1975, Western Air Lines, Inc., Flight 470, overran the departure end of runway 25 at the Natrona County International Airport, Casper, Wyoming. The landing was made following a nonprecision approach on a snow-covered runway, with a following wind, and during reduced visibility. The aircraft was damaged substantially. Of the 99 persons aboard the aircraft , 4 were injured. Of these four injuries, three occurred during the evacuation. The National Transportation Safety Board determines that the probable cause of the accident was the failure of the pilot-in-command to exercise good judgment when he failed to execute a missed approach and continued a nonprecision approach to a landing without adequately assessing the aircraft's position relative to the runway threshold. Contributing to the accident were the excessive height and speed at which he crossed the approach end of the runway and the failure of other flight crewmembers to provide him with required callouts. |
| Learning Keywords: | Operations - Airspace - Non-Precision Approach |
| Operations - Crew Resource Management | |
| Operations - Evacuation | |
| Operations - Runway Overrun | |
| Operations - Unstabilized Approach |
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