Incident Overview
Date: Friday 7 November 1986
Aircraft Type: McDonnell Douglas DC-10-10
Owner/operator: Continental Airlines
Registration Number: N68043
Location: Los Angeles, CA –
ÿ United States of America
Phase of Flight: En route
Casualties: Fatalities: 0 / Occupants: 123
Component Affected: Second (1st officer’s) control wheel sensor, PN 1936100-4Second (1st officer’s) control wheel sensor, PN 1936100-4
Investigating Agency: NTSBNTSB
Category: Accident
About 90 minutes after departure, the aircraft experienced an abrupt pitch-up followed by an abrupt pitch-down. The occurrence resulted in one flight attendant being seriously injured, with two flight attendants and one passenger receiving minor injuries. The autopilot was damaged, and the aircraft returned to Los Angeles without further incident. An investigation revealed that the output from the second (1st officer’s) control wheel sensor, PN 1936100-4, had become erratic.About 90 minutes after departure, the aircraft experienced an abrupt pitch-up followed by an abrupt pitch-down. The occurrence resulted in one flight attendant being seriously injured, with two flight attendants and one passenger receiving minor injuries. The autopilot was damaged, and the aircraft returned to Los Angeles without further incident. An investigation revealed that the output from the second (1st officer’s) control wheel sensor, PN 1936100-4, had become erratic.
Description
THE CAPTAIN STATED THAT ABOUT 90 MIN AFTER DEPARTURE, THE ACFT EXPERIENCED AN ABRUPT PITCH-UP, FOLLOWED BY AN ABRUPT PITCH-DOWN. DRG THE OCCURRENCE, ONE FLT ATTENDANT WAS SERIOUSLY INJURED; TWO FLT ATTENDANTS & ONE PASSENGER RECEIVED MINOR INJURIES. THE AUTOPILOT WAS DISENGAGED & THE FLT RETURNED TO LOS ANGELES WHERE THE ACFT WAS LANDED WITHOUT FURTHER INCIDENT. AN INVESTIGATION REVEALED THE OUTPUT FROM THE #2 (1ST OFFICER’S) CONTROL WHEEL SENSOR, PN 1936100-4, HAD BECOME ERRACTIC. Probable Cause:
Primary Cause
Erratic output from the second (1st officer’s) control wheel sensor.Erratic output from the second (1st officer’s) control wheel sensor.Share on:
