Accident Details
Probable Cause and Findings
The inadvertant stall for undertermined reasons.
Aircraft Information
Registered Owner (Historical)
Analysis
On October 29, 1995, at 1239 PST, a United Airlines Boeing 737-500, N904UA, experienced an upset during a maintenence test flight while on an ILS approach to San Francisco International Airport (SFO). The upset occurred when the flight crew was given a go-around by approach control and the captain selected the takeoff and go-around switch. The airplane pitched up to about 45 degrees nose up and the stick shaker activated. The pilots stated that they pushed the control column forward and both attempted to retrim the nose down but were not able to overcome the increase in pitch. The airplane stalled, rolled slightly, and the nose dropped. After the flightcrew recovered from the upset, the airplane made a normal landing at SFO.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# DCA96IA005