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NTSB Report
June 6, 1991 · Bellanca Eagle DW-1 · N8800W
Hector, MN
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 6, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Hector, MN
Aircraft
Bellanca Eagle DW-1
Tail Number
N8800W
Operator
Edgar T Newberg
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI91DER04
THE PILOT WAS INVOLVED IN AERIAL APPLICATION OF A PEST CONTROL SPRAY. HE REPORTED THAT DURING THE LAST SWATH RUN THE ENGINE 'STARTED HAMMERING' AND EVENTUALLY LOST POWER COMPLETELY. THE PILOT MADE A FORCED LANDING IN A MUDDY FIELD, AND THE AIRPLANE NOSED OVER DURING THE LANDING ROLL. AN FAA INSPECTOR ATTENDED A POST ACCIDENT ENGINE TEARDOWN. HE STATED THE NUMBER ONE CONNECTING ROD FRACTURED ABOVE THE ROD CAP ATTACH POINT, AND THERE WAS EVIDENCE OF GALLING ON THE REMAINING CONNECTING ROD JOURNALS. A SERVICE BULLETIN PUBLISHED BY THE MANUFACTURER STATES 'GALLING...IS PRODUCED DURING OVERSPEED OR EXCESSIVE MANIFOLD OPERATION.'
NTSB Probable Cause
THE LOSS OF ENGINE POWER DUE TO THE TOTAL FAILURE OF A CONNECTING ROD. RELATED FACTORS ARE THE LOW MANEUVERING ALTITUDE AND THE UNSUITABLE (MUDDY) TERRAIN ENCOUNTERED DURING THE FORCED LANDING.
Full Narrative
THE PILOT WAS INVOLVED IN AERIAL APPLICATION OF A PEST CONTROL SPRAY. HE REPORTED THAT DURING THE LAST SWATH RUN THE ENGINE 'STARTED HAMMERING' AND EVENTUALLY LOST POWER COMPLETELY. THE PILOT MADE A FORCED LANDING IN A MUDDY FIELD, AND THE AIRPLANE NOSED OVER DURING THE LANDING ROLL. AN FAA INSPECTOR ATTENDED A POST ACCIDENT ENGINE TEARDOWN. HE STATED THE NUMBER ONE CONNECTING ROD FRACTURED ABOVE THE ROD CAP ATTACH POINT, AND THERE WAS EVIDENCE OF GALLING ON THE REMAINING CONNECTING ROD JOURNALS. A SERVICE BULLETIN PUBLISHED BY THE MANUFACTURER STATES 'GALLING...IS PRODUCED DURING OVERSPEED OR EXCESSIVE MANIFOLD OPERATION.'
Flight
Event TypeAccident
Event Time08:15 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBellanca Eagle DW-1
Tail NumberN8800W
Aircraft CategoryAir
DamageSubstantial
OperatorEdgar T Newberg
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540-M1B5D · Reciprocating · 300
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 35 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind150° @ 5 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO