N999UA

Destroyed
Fatal

BOEING 737-291 S/N: 22742

Accident Details

Date
Sunday, March 3, 1991
NTSB Number
DCA91MA023
Location
COLORADO SPGS, CO
Event ID
20001212X16583
Aircraft Damage
Destroyed
Highest Injury
Fatal
Fatalities
25
Serious Injuries
0
Minor Injuries
0
Uninjured
0
Total Aboard
25

Probable Cause and Findings

A loss of control of the airplane resulting from the movement of the rudder surface to its blowdown limit. The rudder surface most likely deflected in a direction opposite to that commanded by the pilots as a result of a jam of the main rudder power control unit servo valve secondary slide to the servo valve housing offset from its neutral position and overtravel of the primary slide.

Aircraft Information

Registration
N999UA
Make
BOEING
Serial Number
22742
Model / ICAO
737-291

Registered Owner (Historical)

Name
SALE REPORTED
Address
1200 E ALGONQUIN RD
Status
Deregistered
City
ELK GROVE
State / Zip Code
IL 60006
Country
United States

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# DCA91MA023