M14P leads

[George Coy]

CAUTION to people wiring to M9 magnetos on the M14P engines .

There was an accident a few months ago that was caused by using a spark plug
type of "cigarette" ( the kind with the small spring attached) instead of a
solid insulated "P" lead fitting on an M14P type engine. The small spring on
the spark plug type of lead end would occasionally vibrate off the leaf
spring in the M9 magneto and short to ground. This finally happened to both
magnetos simultaneously and caused the engine to quit just after take off.
The engine was an M14D that uses the same M9 magnetos as used on the M14P
engine series. The aircraft was on a beautiful full scale replica of a
Nieuport 28.

The following is the preliminary accident report:

On September 30, 2005, about 1016 eastern daylight time, an amateur built
Nieuport 28, N62610, was
substantially damaged during a forced landing, after it experienced a loss
of engine power during
the initial climb after takeoff from Wright Patterson Air Force Base (FFO),
Dayton, Ohio. The
certificated private pilot was seriously injured. Visual meteorological
conditions prevailed and no
flight plan had been filed for the local aerial demonstration flight, that
was conducted under 14
CFR Part 91.
According to a Federal Aviation Administration (FAA) inspector, the airplane
was departing on its
first demonstration flight of the air show. As the airplane climbed, a white
"puff" of smoke was
observed to exit the exhaust stack. The engine then began to lose power, the
propeller appeared to
be "windmilling" and the pilot performed a forced landing in the grass
approximately 150 feet from
his departure point. During the landing, the airplane touched down nose low,
the landing gear
collapsed, the bottom of the engine dug in to the ground and the airplane
nosed over.
A post accident inspection revealed that the airplane's lower right wing
leading edge exhibited
crush damage, the right wheel assembly had separated from the landing gear,
the landing gear mounts
had been crushed, deformed, and had folded back against the fuselage and
lower wing panels, the
engine mounts were broken, the propeller was shattered and the rudder was
damaged.
The fuel selector was found to be in the open position. Fuel samples taken
from the fuel quantity
indicator, showed no signs of water or contamination and the fuel gascolator
showed no signs of
staining or sediment.
The airplane and engine will be re-examined at a later date.

If anyone is in doubt as to the proper lead ends for the "P" leads, please
feel free to contact us.

George Coy
President
Gesoco Industries Inc.
629 Airport Rd.
Swanton, VT 05488
TEL 802-868-5633
FAX 802-868-4465
Web Site www.gesoco.com
e-mail George@gesoco.com
Franklin County Airport (KFSO)





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