LAX82FA255

NTSB accident investigation · Mitsubishi MU-2B · Schellville, CA · July 14, 1982

Accident · Minor injuriesField investigationFinal report
Date
July 13, 1982, 17:45 local (Jul 14, 1982, 00:45 UTC)
Place
Schellville, CA
Injuries
1 minor, 1 uninjured
Damage
Destroyed
Phase of flight
Takeoff
Aircraft
N27GPMitsubishi MU-2B
Weather
Visual (VMC) · Day
Status
Completed · report July 13, 1983
Report
Approved by Office Director
FAA report
19820713032119A
Case key
72570

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - mech failure/malfTakeoff - roll/run
Fuel system,fuel control - failure,partialCause
Fuel system,fuel control - leakCause
Propeller system/accessories - engagedCause
Propeller - improper use ofPilot in commandCause
Performance data - not identifiedPilot in commandCause
Loss of control - on ground/waterTakeoff - roll/run
Directional control - not maintainedPilot in commandFactor
Ground loop/swerve - inadvertentPilot in command
On ground/water encounter with terrain/waterTakeoff
Aborted takeoff - performedPilot in command
Terrain condition - ditchFactor
Nose overTakeoff

Analysis

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.

Aircraft

Registration
N27GP
Reported as
Mitsubishi MU-2B
Category
Airplane
Serial number
027
Airframe hours
2,254
Engine
Airesearch TPE 331-25AA, 575 horsepower, turbo prop
Damage
Destroyed
Flight
Personal · Part 91
Operator
Robert Marshall Jr.
Registered owner
Robert Marshall Jr.
Departed
0Q3 · Schellville, CA
Destination
OAK · Oakland, CA
Airport
0Q3 · Schellville, runway 7, 2,900 × 100 ft, grass/turf

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
41
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
6,500 total · 134 in this make and model · 6,300 as pilot in command · 150 in the last 90 days · 29 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 8 knots
Visibility
20 statute miles
Temperature
176 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.