CEN11CA047

NTSB accident investigation · Aardema Robert John 1 Aardema RAG WNG SP · Oshtemo, MI · October 29, 2010

Accident · No injuriesData collectionFinal report
Date
October 29, 2010, 11:40 local (15:40 UTC)
Place
Oshtemo, MI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N768BAAardema Robert John 1 Aardema RAG WNG SP
Defining event
Initial climb: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report April 12, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA-Grand Rapids
FAA report
20101029049249A
Case key
77706

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 failure of the ignition system wiring, which resulted in a total loss of engine power.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that, just after takeoff and during the initial climb, the airplane's engine suddenly lost power when the airplane was about 400 feet above the ground. The pilot attempted to return to the departure runway but realized that he did not have sufficient altitude. The airplane impacted trees and the ground in a wooded area near the runway. All of the biplane's wing surfaces were fragmented during the accident sequence and the fuselage came to rest nose down. The airplane was powered by a converted automobile engine. A postaccident examination of the engine revealed that the ignition high voltage coil wire had separated from the coil. When the wire was reinserted into the coil, the engine started normally. The coil wire was held in place by a friction fit; no other means of retention was provided.

Factual narrative

The pilot reported that just after takeoff and during the initial climb, the airplane's engine suddenly lost power and the propeller stopped. The airplane's altitude when the power loss occurred was about 400 feet above the ground. The pilot attempted to return to the departure runway but realized that he did not have sufficient altitude. The airplane impacted trees and the ground in a wooded area near the runway. All of the biplane's wing surfaces were fragmented during the accident and the fuselage came to rest nose down. The airplane was powered by a converted automobile engine. Examination of the airplane revealed that the ignition high voltage coil wire had separated from the coil. The coil wire was re-inserted into the coil and the engine was able to be started. The engine could not be run to full power due to the fragmented propeller. The coil wire was held in place by a friction fit. No other means of retention was provided.

Aircraft

Registration
N768BA
Reported as
Aardema Robert John 1 Aardema RAG WNG SP
Category
Airplane, amateur-built
Serial number
1
Airframe hours
89
Engine
Ama/Expr UNKNOWN ENG, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · August 12, 2010 · 4 hours before
Departed
4N0 · Oshtemo, MI
Destination
4N0 · Oshtemo, MI
Flight plan
Unknown
Airport
4N0 · Newman's Airport, runway 36, 2,697 × 125 ft, grass/turf

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
64
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
July 1, 2009
Seat
Single
Flight hours
5,450 total · 90 in this make and model · 4,700 as pilot in command · 5 in the last 90 days · 1 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Lowest ceiling
None
Temperature
48 °F

Docket · 1

The files NTSB released with the investigation on December 10, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 834 KB in all.

FAA reports on this event · 1

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