MIA94LA147

NTSB accident investigation · Ercoupe 415D · Boynton Beach, FL · May 22, 1994

Accident · Minor injuriesLimited investigationFinal report
Date
May 22, 1994, 18:00 local (22:00 UTC)
Place
Boynton Beach, FL
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N93763Ercoupe 415D
Weather
Visual (VMC) · Day
Status
Completed · report December 7, 1994
Report
Approved by Office Director
Case key
37550

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

Inadvertent use of the mixture control while on final approach to land. Contributing to the accident was the separation of the mixture control cable from the carburetor.

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/malfApproach - vfr pattern - final approach
Mixture - inadvertent usePilot in commandCause
Fuel system,carburetor - disabledFactor
Forced landingDescent - emergency
In flight collision with objectDescent - emergency
Object - tree(s)
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - water

Analysis

The pilot stated that while on approach to land, he inadvertently pulled the mixture control instead of the carburetor heat control. After realizing his mistake he pushed in the mixture control but the engine did not respond. Unable to land at the airstrip he crashed into a canal short of the airstrip. Examination of the engine by an FAA airworthiness inspector revealed that the mixture control cable was separated from the mixture control arm at the carburetor explaining the lack of engine response.

Factual narrative

On May 22, 1994, about 1800 eastern daylight time, an Engineering and Research Ercoupe 415-D, N93763, crashed into a canal while on approach to land at the Willis Gliderport, Boynton Beach, Florida, while on a 14 CFR part 91 personal flight. Visual meteorological conditions existed at the time and no flight plan was filed. The airplane was substantially damaged and the commercial-rated pilot and one passenger sustained minor injuries. The flight originated from the Wlllis Gliderport about 5 minutes earlier.

The pilot stated that while on final approach to land he inadvertently pulled the mixture control instead of the carburetor heat control. He realized his mistake and pushed the mixture control in but the engine did not respond. Realizing that he would not land on the runway he initiated a turn to crash land in a canal, and during the turn the left wing collided with trees. The airplane spun to the left and crashed into the canal. Both occupants exited the airplane and waded to the bank of the canal.

Examination of the engine by an FAA airworthiness inspector revealed that the mixture control cable was separated from the mixture control arm at the carburetor. The bolt, washer, and nut were missing.

Aircraft

Registration
N93763
Reported as
Ercoupe 415D
Category
Airplane
Serial number
1086
Airframe hours
1,757
Engine
Continental C-90-12F, 90 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Nicks, David G.
Registered owner
W.A. Murphy
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 22, 1993 · 9 hours before
Airport
1X4 · Willis Gliderport

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
59
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Expired
Seat
Left
Flight hours
1,452 total · 4 in this make and model · 1,330 as pilot in command · 4 in the last 90 days · 4 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
20° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 55 °F
Altimeter
29.00 inHg
Observed at
PBI, 10 nm away