DEN83LTE11

NTSB accident investigation · Eipper Formance MX-2 · Granby, CO · June 24, 1983

Accident · Minor injuriesFinal report
Date
June 24, 1983, 13:00 local (19:00 UTC)
Place
Granby, CO
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3133LEipper Formance MX-2
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830624031899A
Case key
16166

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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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/malfTakeoff - initial climb
Ignition system,spark plug - contaminationCause
Ignition system,spark plug - incorrectCause
Forced landingLanding - flare/touchdown
Nose downLanding - flare/touchdown

Analysis

The ultralight nosed down during an emergency landing after the engine lost power at about 100' AGL after takeoff. The pilot attempted a landing on the remaining rwy after the power loss, but the acft could not be flared and ended up on the rwy partially inverted. The rear spark plug of the engine was found to have small particles of carbon between the electrode and firing point making the spark plug inoperative. The spark plug was a champion type N3C used on two-cycle gas engines.

Aircraft

Registration
N3133L
Reported as
Eipper Formance MX-2
Category
Ultralight, amateur-built
Serial number
3866
Airframe hours
30
Engine
Cuyuna 2F430, 32 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Granby Ultral Light Aviation
Last inspection
Annual · June 30, 1982 · 255 hours before
Departed
Granby, CO
Destination
Granby, CO

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
28
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
435 total · 87 in this make and model · 715 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 3 knots, gusting 5
Lowest ceiling
15,000 ft broken

FAA reports on this event · 1

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