BFO93LA122

NTSB accident investigation · Schultz/Bowers FLY Baby 1A · Conneaut, OH · July 12, 1993

Accident · Serious injuriesLimited investigationFinal report
Date
July 12, 1993, 19:01 local (23:01 UTC)
Place
Conneaut, OH
Injuries
1 serious
Damage
Destroyed
Phase of flight
Emergency descent
Aircraft
N4295XSchultz/Bowers FLY Baby 1A
Weather
Visual (VMC) · Day
Status
Completed · report May 17, 1994
Report
Approved by Office Director
FAA report
19930712023129A
Case key
8789

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

Operational failure of the left magneto's high tension wiring due to grease/corrosion, which resulted in a progressive power loss and subsequent forced landing.

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/malfDescent - emergency
Ignition system,high tension wiring - corrodedCause
Ignition system,spark plug - inoperative
Maintenance - inadequatePilot in command
Forced landingDescent - emergency
In flight collision with terrain/waterLanding

Analysis

While in cruise, the airplane's engine lost partial power. The pilot stated he was over a field and decided to circle and land in the field. The pilot stated that during the second time he went around the field, downwind, the airplane's engine lost total power. The airplane impacted a berm on the side of a road just short of the field. Witnesses to the accident stated that prior to the airplane impacting the berm, the engine was 'missing.' Post accident examination of the airframe did not reveal any anomalies. The cockpit magneto switch was selected to the left magneto. The engine was inspected and the left magneto high tension lead was found corroded with gear grease causing intermittent arcing. Spark plugs on the number 2 and 3 cylinders were found to be sooty and the spark plugs on the number 1 and 4 cylinders appeared 'not to be firing.' The pilot stated that he did not leave the magneto switched to the 'left' position and that it must have been moved during the impact sequence.

Factual narrative

On Monday, July 12, 1993, at about 1901 eastern daylight time, a home built Bowers Fly Baby, N4295X, owned, operated, and piloted by Robert C. Schultz of Conneaut, Ohio, lost engine power while in cruise and was destroyed during the subsequent forced landing in Conneaut. The pilot was seriously injured. Visual meteorological conditions prevailed at the time of the accident. The local pleasure flight was conducted under 14 CFR Part 91.

The pilot stated that while in cruise, the airplane's engine lost partial power. He stated that he performed emergency procedures but the engine did not regain the partial power loss. The pilot stated that the airplane was over a field and he decided to land in the field. He said the airplane was too high to make an approach and land in the field so he flew around the field a couple of times to lose altitude. He said during the second time around the field, the engine lost total power. The pilot stated that the airplane was downwind and it did not have enough airspeed or altitude to make the field. The airplane impacted a berm on the side of a road, just short of the field, and was destroyed.

A witness located in his home near the accident site stated that he heard the airplane's engine "missing" prior to the impact. Another witness located in a parking lot near the accident site stated that when he approached the airplane moments after the crash, fuel was coming from the middle section of the airplane.

The wreckage was examined by FAA inspectors. The examination did not reveal any airframe anomalies. The mixture and throttle controls located in the cockpit were full forward. The magneto switch was on the left magneto.

The engine was examined and the left magneto high tension lead was found corroded with gear grease causing intermittent arcing. Spark plugs on the number two and three cylinders were found to be "sooty." The FAA inspector stated in his report that the spark plugs on the number one and four cylinders appeared "not to be firing."

The pilot stated that he purchased the engine and installed it on the airplane about two years ago. He said prior to the purchase of the engine, the engine was sitting in a friend's basement and had no paperwork. He stated the engine ran fine and he did not encounter any problems after the installation. However, the pilot stated that if he had to buy another engine, he would buy one that had "a history" and maintenance records.

Aircraft

Registration
N4295X
Reported as
Schultz/Bowers FLY Baby 1A (FLY BABY 1)
Category
Airplane, amateur-built
Serial number
1924
Airframe hours
24
Engine
Franklin 4AC 176B2, 65 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Robert C. Schultz
Registered owner
Robert C. Schultz
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · June 28, 1993 · 2 hours before
Departed
7G2 · Jefferson, OH
Destination
7G2

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
69
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
475 total · 28 in this make and model · 439 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 70 °F
Altimeter
29.00 inHg
Observed at
ERI, 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.