LAX92LA297

NTSB accident investigation · Krug Lincoln Sportplane · Corona, CA · July 14, 1992

Accident · No injuriesLimited investigationFinal report
Date
July 14, 1992, 06:30 local (13:30 UTC)
Place
Corona, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N377JKKrug Lincoln Sportplane
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 1993
Report
Approved by Office Director
FAA report
19920714025519A
Case key
27686

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/builder inadequate propeller component resulting in an inadequate climb performance. Contributing to this accident was the airplane's inability to climb.

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.

In flight collision with objectTakeoff - initial climb
Object - tree(s)
Aircraft performance,climb capability - inadequateCause
Climb - not possiblePilot in commandFactor
Acft/equip,inadequate aircraft componentManufacturerCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - high obstruction(s)

Analysis

The pilot/builder completed a high speed taxi test on the runway before departing on the experimental airplane's first flight. During the takeoff the airplane failed to climb after it transitioned from ground effect. The engine RPM was adequate, but the airplane would not climb. The remaining runway was inadequate for a landing and the pilot attempted to gain altitude by increasing the flying speed, but to no avail. The altitude was insufficient and the airplane collided with the trees at the end of the runway. The pilot/builder reported that the propeller thrust efficiency was inadequate to produce the required thrust for climb.

Aircraft

Registration
N377JK
Reported as
Krug Lincoln Sportplane (LINCOLN SP)
Category
Airplane, amateur-built
Serial number
1
Airframe hours
1
Engine
Volkswagen 1600 CC, 41 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Operator
Krug, John A.
Registered owner
Krug, John A.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · June 19, 1992 · 1 hours before
Departed
L66
Destination
L66
Airport
L66 · Corona Municipal, runway 25, 3,200 × 60 ft, asphalt

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
48
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
371 total · 1 in this make and model · 318 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
15 statute miles
Lowest ceiling
None
Temperature
70 °F

FAA reports on this event · 1

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