SERS · Beech C-45H · 2007-07-19 · Longmont, CO, USA
Event
NTSB number
DEN07LA122
Event ID
20070730X01039
Type
Accident
Date
2007-07-19
Location
Longmont, CO, USA
Coordinates
40.119445, -105.055557
Injuries
Highest injury
SERS
Fatal
0
Serious
1
Minor
1
Uninjured
0
Total aboard
2
Aircraft
Make
Beech
Model
C-45H
Registration
N9562Z
FAR Part
091
Engines
2
Damage
DEST
Conditions
Light
DAYL
Weather
VMC
Probable cause
The instructor pilot's improper preflight in that he failed to close the rocker box recovery system drain valves, resulting in a total loss of lubricating oil and subsequent oil starvation to both engines. A contributing factor was the trees.