NTSB Identification: LAX82FA255
14 CFR Part 91: General Aviation
Accident occurred Tuesday, July 13, 1982 in SCHELLVILLE, CA
Probable Cause Approval Date: 07/13/1983
Aircraft: MITSUBISHI MU-2B, registration: N27GP
Injuries: 1 Minor,1 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

AT APPROXIMATELY 800 FT DOWN THE LEFT SIDE OF THE RWY THE LEFT ENG EXPERIENCED A POWER LOSS. THE ACFT SWERVED OFF THE LEFT SIDE OF THE RWY COLLIDING WITH A DRAINAGE DITCH & COMING TO REST INVERTED. EXAMINATION OF THE FUEL CONTROL UNIT REVEALED THAT THE BELLOWS WITHIN THE ASSEMBLY WERE FOUND IN AN EXTENDED POSITION, INDICATING A LEAK INTO THE EVACUATED AREA. A FAILURE WAS NOTED AT THE SEAM IN THE BELLOWS. IN ADDITION, EXAMINATION OF THE PROPELLER REVEALED THAT THE START LOCKS WERE ENGAGED & THE BLADES WERE AT THE START LOCK POSITION AT IMPACT. IN ORDER TO ENGAGE THE START LOCKS, THE POWERLEVER HAS TO BE MOVED TO REVERSE DURING SHUTDOWN WITH THE ENG RPM BELOW 50%. AFTER ENG START THE PLT MUST AGAIN RETARD THE POWER LEVERS TO REVERSE TO DISENGAGE THE START LOCKS. THE LOCKS WILL NOT DISENGAGE AFTER THE POWER LEVER IS SET TO THE FLIGHT RANGE.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FUEL SYSTEM,FUEL CONTROL..FAILURE,PARTIAL

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FUEL SYSTEM,FUEL CONTROL..LEAK

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

PROPELLER SYSTEM/ACCESSORIES..ENGAGED

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

PROPELLER..IMPROPER USE OF..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

PERFORMANCE DATA..NOT IDENTIFIED..PILOT IN COMMAND


Contributing Factors

DIRECTIONAL CONTROL..NOT MAINTAINED..PILOT IN COMMAND




Contributing Factors

TERRAIN CONDITION..DITCH

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