CHI91LA256

NTSB accident investigation · Luscombe 8E · Valparaiso, IN · August 11, 1991

Accident · Serious injuriesLimited investigationFinal report
Date
August 11, 1991, 13:40 local (18:40 UTC)
Place
Valparaiso, IN
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N45WBLuscombe 8E
Weather
Visual (VMC) · Day
Status
Completed · report December 4, 1992
Report
Approved by Office Director
FAA report
19910811033059A
Case key
15152

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 pilot in command's failure to maintain airspeed. A factor contributing was improper maintenance (design change) performed by an unqualified person (pilot in command).

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) - nonmechanicalTakeoff - initial climb
Fuel system,carburetor - blocked(partial)
Maintenance,design change - improperUnqualified personFactor
Forced landingDescent - emergency
Loss of control - in flightManeuvering - turn to landing area (emergency)
Airspeed - not maintainedPilot in commandCause
Diverted attentionPilot in command
Stall/spin - inadvertentPilot in command
In flight collision with terrain/waterDescent - uncontrolled

Analysis

During initial climb the aircraft sustained a total loss of power. While in a turn to an emergency landing area the aircraft stalled and entered a spin impacting the terrain. Subsequent investigation found a foreign substance blocking the main metering orifice in the carburetor which had migrated from a missing gasket on the drain plug. The pilot indicated that he had used a substitute material for replacement of the missing gasket.

Aircraft

Registration
N45WB
Reported as
Luscombe 8E
Category
Airplane
Serial number
4457
Engine
Continental C-85-12F, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
William F. Bokodi
Registered owner
William F. Bokodi
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 23, 1991 · 23 hours before
Departed
VPZ · Valparaiso, IN
Destination
0SC · Griffith, IN
Airport
VPZ · Porter County, runway 27, 6,000 × 150 ft, macadam

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
66
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,543 total · 1,400 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Observed at
SBN, 35 nm away

FAA reports on this event · 1

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