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NTSB Report
June 23, 1991 · Howard Aircraft Tierra II · N351R
Cambridge Jct, MI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 23, 1991
Injury Outcomes
2 injuries (2 fatalities)
Location
Cambridge Jct, MI
Aircraft
Howard Aircraft Tierra II
Tail Number
N351R
Operator
Gregory a Moore
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
CHI91DEC02
THE AIRPLANE WAS OBSERVED FLYING APPROXIMATELY 200 FEET AGL WHEN IT BEGAN A LEFT HAND TURN. WITNESSES STATED THAT DURING THIS TURN, THE ENGINE SEEMED TO LOSE POWER, THE AIRPLANE STARTED TO DESCEND, AND THE BALLISTIC PARACHUTE DEPLOYED. THE AIRPLANE THEN DESCENDED INTO TREES WITH A STEEP NOSE DOWN ATTITUDE. AN ON SCENE INVESTIGATION REVEALED THAT THE PARACHUTE SHROUD LINE, WHICH WAS ATTACHED TO THE WING'S MAIN SPAR, HAD ENTANGLED ITSELF AROUND THE PUSHER ENGINE'S PROPELLER SHAFT. A WEIGHT AND BALANCE CALCULATION REVEALED THE AIRPLANE WAS APROXIMATELY 200 POUNDS ABOVE ITS GROSS WEIGHT LIMIT, AND ITS CENTER OF GRAVITY WAS .4 OF AN INCH FORWARD OF THE FORWARD LIMIT. THE PARACHUTE WAS PAST DUE FOR ITS TWO YEAR INSPECTION.
NTSB Probable Cause
ENTANGLEMENT OF THE EMERGENCY BALLISTIC PARACHUTE WITH THE AIRPLANE'S PROPELLER SHAFT AFTER IT DEPLOYED FOR AN UNDETERMINED REASON. A FACTOR RELATED TO THE ACCIDENT WAS: THE AIRCRAFT'S WEIGHT AND BALANCE LIMIT WAS EXCEEDED BY THE PILOT.
Full Narrative
THE AIRPLANE WAS OBSERVED FLYING APPROXIMATELY 200 FEET AGL WHEN IT BEGAN A LEFT HAND TURN. WITNESSES STATED THAT DURING THIS TURN, THE ENGINE SEEMED TO LOSE POWER, THE AIRPLANE STARTED TO DESCEND, AND THE BALLISTIC PARACHUTE DEPLOYED. THE AIRPLANE THEN DESCENDED INTO TREES WITH A STEEP NOSE DOWN ATTITUDE. AN ON SCENE INVESTIGATION REVEALED THAT THE PARACHUTE SHROUD LINE, WHICH WAS ATTACHED TO THE WING'S MAIN SPAR, HAD ENTANGLED ITSELF AROUND THE PUSHER ENGINE'S PROPELLER SHAFT. A WEIGHT AND BALANCE CALCULATION REVEALED THE AIRPLANE WAS APROXIMATELY 200 POUNDS ABOVE ITS GROSS WEIGHT LIMIT, AND ITS CENTER OF GRAVITY WAS .4 OF AN INCH FORWARD OF THE FORWARD LIMIT. THE PARACHUTE WAS PAST DUE FOR ITS TWO YEAR INSPECTION.
Flight
Event TypeAccident
Event Time18:35 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHoward Aircraft Tierra II
Tail NumberN351R
Aircraft CategoryAir
DamageDestroyed
OperatorGregory a Moore
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotax · BOMBARDIER · Reciprocating · 65
Seats2
People & Injuries
Injury Summary2 injuries (2 fatalities)
Fatal2
Serious0
Minor0
Uninjured0
Total2
Crew 1Age 45 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind40° @ 10 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter30.00 inHg
Observation Time23:50
Weather SourceWFAC