SEA91LA136

NTSB accident investigation · Schweizer G-164B · Wilson Creek, WA · May 27, 1991

Accident · No injuriesLimited investigationFinal report
Date
May 27, 1991, 07:40 local (14:40 UTC)
Place
Wilson Creek, WA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N8407KSchweizer G-164B
Weather
Visual (VMC) · Day
Status
Completed · report February 12, 1993
Report
Approved by Office Director
FAA report
19910527017449A
Case key
41454

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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Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

The loss of engine power in flight due to improper overhaul of the carburetor float assembly fulcrum screw, shutting off fuel flow to the engine.

Analysis

The acft engine quit during a low level aerial application swath run. The pilot made an emerg forced landing and the acft impacted irrigation equip on ldg gnd roll. Post accident exam revealed carb failure & fuel shutdown to eng.

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(total) - mech failure/malfManeuvering - aerial application
Fuel system,carburetor float - disengagedCause
Maintenance,overhaul - improperOther maintenance personnelCause
Fluid,fuel - starvationCause
Forced landingDescent - emergency
On ground/water collision with objectLanding - roll

Aircraft

Registration
N8407K
Reported as
Schweizer G-164B
Category
Airplane
Serial number
689B
Engine
P&W R-1340-AN1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Martin R. Shaw
Registered owner
Martin R. Shaw
Last inspection
Annual · February 5, 1991 · 120 hours before
Departed
WA70 · Wilson Creek, WA

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
49
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Helicopter, Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
14,000 total · 8,000 in this make and model · 13,900 as pilot in command · 120 in the last 90 days · 80 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
30 statute miles
Lowest ceiling
None
Temperature
57 °F, dew point -0 °F

FAA reports on this event · 1

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

Other investigations on N8407K · 1

Matched to the same aircraft by N-number and date.