NONE · BOEING 747-251B · 1994-11-02 · CHICAG0, IL, USA
Event
NTSB number
CHI95IA028
Event ID
20001206X02567
Type
Incident
Date
1994-11-02
Location
CHICAG0, IL, USA
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
3
Total aboard
3
Aircraft
Make
BOEING
Model
747-251B
Registration
N631US
FAR Part
091
Engines
4
Damage
MINR
Conditions
Light
NR
Weather
VMC
Probable cause
inattentive maintenance service of the airplane by the mechanic who failed to disengage the constant speed drive (CSD) after the engine runup had been completed. A factor in this incident was the lead mechanic not performing maintenance record keeping after being informed that the CSD had been recoupled.